403892_Precision_tech_manual_d7.qxd:pg 1
Transcription
403892_Precision_tech_manual_d7.qxd:pg 1
403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 1 WELCOME TO PRECISION STEEL. Precision Steel thanks you for the opportunity to introduce our company. In this catalog, we’ll show you what you need to know about your steel service center. For almost 70 years, the daily contribution of each employee has helped Precision Steel attain and continue our excellent reputation in the steel industry. Purchasing raw material from only prime quality mill sources, all incoming shipments are carefully recorded and tagged for size, grade and temper. A series of three critical inspections follows to assure product quality: (1) when material is put into inventory (2) when it is drawn from stock to slit an order (3) during processing. Precision offers custom processing, ISO Certification, Statistical Process Control (SPC), Electronic Data Interchange (EDI) and Bar Coding. Our goal is to provide our customers with products that meet or exceed their quality requirements. As a business partner, we continuously strive to improve the quality and on-time delivery. We rely on our customers, employees, and suppliers to help us prepare for the future. We thank them and look forward to moving through the next century together. Visit us at our web site. Terry A. Piper Chairman, President & CEO www.precisionsteel.com 1 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 2 QUALITY PRODUCTS BEGIN CHARLOTTE, NC The Charlotte Service Center is committed to: “100% satisfaction of the quality and service requirements by our customers.” This is accomplished through written procedures for each job performance, which is constantly updated to assure on-going, top-grade performance. This extends to internal personnel procedures as well as raw materials provided by vendors. If their products don’t meet PSW standards, the vendor is replaced. Precision Steel Warehouse, Inc. Charlotte Service Center 2027 Gateway Blvd. Charlotte, NC 28208-2741 704-394-3341 Fax 704-393-3312 www.precisionsteel.com e-mail: [email protected] 2 Precision Steel Warehouse is an ISO Certified Company 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 3 WITH COMMITMENT FRANKLIN PARK, IL Precision Steel’s Quality Policy Statement says everything you want and need to know about us: It is the policy of Precision Steel Warehouse, Inc. to provide our customers with products that meet or exceed their quality requirements. We will continually strive to improve the quality and on-time delivery of our products. Top management of Precision Steel Warehouse promotes continuous improvement of customer satisfaction by maintaining and reviewing the ISO quality system. Precision Steel Warehouse, Inc. 3500 N. Wolf Rd., Franklin Park, IL 60131-1395 847-455-7000 Fax 847-455-1341 www.precisionsteel.com e-mail: [email protected] Precision Steel Warehouse is an ISO Certified Company DOWNERS GROVE, IL Precision Brand Products, Inc. manufactures and supplies high quality toolroom specialty and maintenance products to a diverse, value-conscious, worldwide customer base. Our commitment is to 100% conformance to customer requirements for quality, service, and delivery, without exception. Our employees’ commitment to this principle is exemplified in the constant refinement of our business processes to better anticipate and respond to the changing needs of our customers. Precision Brand Products, Inc. 2250 Curtiss St., Downers Grove, IL 60515-4038 630-969-7200 Fax 630-969-0310 www.precisionbrand.com e-mail: [email protected] Precision Brand Products is an ISO Certified Company 3 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 4 PRODUCT GROUP INDEX LOW CARBON SHEET AND STRIP C.R. Sheet - All Tempers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-26 C.R. Strip Steel - All Tempers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-27 C.R. Accuracy Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Shim Steel (Hard C.R. Bright) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Flat Wire (C.R. Round Edge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-31 COATED METALS Useful Tin Plate Facts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-35 Electrolytic Tin Coated Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Comparison of Coated Metals (Chart) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Electro Galvanized Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 SPRING STEEL Suggested Heat Treatments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Cold Rolled Annealed Spring Steels . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-45 Special Temper Strip, 75 Carbon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 4130 Aircraft Alloy Strip Annealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 1074-1075 Tempered (Scaleless) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 STAINLESS STEELS Stainless Types - Chemical Compositions . . . . . . . . . . . . . . . . . . . . . . . . . 52 Types 301, 302, 304, 305, 316, 321, 410, 420, 430, 17/7 PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-72 BRASS AND PHOSPHOR BRONZE STRIP Brass Strip (All Tempers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76-79 Phosphor Bronze Strip - 5% A. (Spring Temper) . . . . . . . . . . . . . . . . . . . . 80 4 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 5 TOOL ROOM SPECIALITIES Arbor Spacers and Shims and Coupling Nuts . . . . . . . . . . . . 82-83 Drill Rod, First TryTM and Hot Melt Coating. . . . . . . . . . . . . . . . 82-83 Feeler Gage Stock and Hose Clamps . . . . . . . . . . . . . . . . . . 82-83 Key Stock and Layout Fluid and Remover . . . . . . . . . . . . . . . 82-83 Lengthening and Shortening Shim and Maintenance Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Plastic Shim and Poc-Kit® Feeler Gage Assortment . . . . . . . . 82-83 Sof’ Shoe® and Shim Stock Punch and Die Set . . . . . . . . . . . 82-83 Laminated and Slotted Shim . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Stainless Steel Tool Wrap and Stainless Steel . . . . . . . . . . . . 82-83 Wire and Music Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Steel, Brass, Blue Tempered and Stainless Steel Shim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Threaded Rod and Tool Black® Kit . . . . . . . . . . . . . . . . . . . . . 82-83 TECHNICAL DATA Useful Tin Plate Facts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Comparison of Coated Metals (Chart) . . . . . . . . . . . . . . . . . . . . . 37 Heat Treatment Chart (For High Carbon Steels) . . . . . . . . . . . . . 42 Brass Mill Temper - Numbering System . . . . . . . . . . . . . . . . . . . . 76 Blanking and Shearing Pressure Chart . . . . . . . . . . . . . . . . . . . . 84 Weight Tables (Strip Steel, Wt. Per Lin. Ft.) . . . . . . . . . . . . . . 85-87 Definitions (Glossary of Trade Terms) . . . . . . . . . . . . . . . . . . 88-114 Metric Conversion Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . 114-118 Tolerance Tables (All Products this Catalog) . . . . . . . . . . . 119-135 AISI-SAE Chemical Composition . . . . . . . . . . . . . . . . . . . . 136-137 Rockwell Hardness Chart and Guide . . . . . . . . . . . . . . . . . 138-141 Cross Reference Specifications . . . . . . . . . . . . . . . . . . . . . 142-143 Coil Weight Tables (For Strip Steel) Per Inch of Width . . . . 144-145 Fractions as Decimals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Standard Gage Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Order Information - Trade Customs . . . . . . . . . . . . . . . . . . 148-149 Manufacturing Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Custom Processing of Your Material . . . . . . . . . . . . . . . . . . . . . 151 Oscillated Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Statistical Process Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Electronic Data Interchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Bar Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 5 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 6 ALPHABETICAL INDEX Accuracy Strip - Tempers 2, 3 and 4 . . . . . . . . . . . . . . . . . . . . 28 Aircraft Alloy Strips - AISI and SAE 4130 . . . . . . . . . . . . . . . . . 47 AISI Compositions - Carbon and Stainless Steels . . . . . 136-137 Aluminum Killed C.R. Sheet Steel . . . . . . . . . . . . . . . . . . . . . . 26 Aluminum Killed C.R. Strip Steel . . . . . . . . . . . . . . . . . . . . . . . 27 Arbor Spacers, Shims (Pkgd. and Bulk) . . . . . . . . . . . . . . . . . . 83 Brass Strip - All Tempers including Spring Temper . . . . . . . 76-79 Bronze Strip - Phosphor Bronze - 5% A. Spring Temper . . . . . 80 Clock Spring Steel or Blue Tempered Spring Steel Strip . . . . . 49 Coated Metals Comparison Chart . . . . . . . . . . . . . . . . . . . . . . 37 Coated Steel Sheet and Strip . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Coil Weight Tables Per Inch of Width . . . . . . . . . . . . . . . 144-145 Cold Rolled Sheet Steel - All Tempers and Finishes Plain and Coated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-30 Cold Rolled Strip Steel - All Tempers including C.R. Flat Wire and Shim Steel . . . . . . . . . . . . . . . . . . . . . . . . . . 19-30 Conditions of Sale, Trade Customs and Order Information . . 148-149 Copper Base Alloys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76-80 Cross Reference Specifications . . . . . . . . . . . . . . . . . . . 142-143 Custom Processing of Your Material . . . . . . . . . . . . . . . . . . . . 151 Definitions - Glossary of Trade Terms . . . . . . . . . . . . . . . . 88-114 Drawing Quality Cold Rolled Sheet - Strip . . . . . . . . . . . . . 26-27 Drill Rod (Pkgd. and Bulk) . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Feeler Stock or Thickness Gage . . . . . . . . . . . . . . . . . . . . . 82-83 Flat Wire - Low Carbon C.R. Rd. Edge . . . . . . . . . . . . . . . . . . . 30 Galvannealed Sheet (Slit Coils or Flat Sheets) . . . . . . . . . . . . . 39 Galvanized Sheets - Electro (Coiled and Flat) . . . . . . . . . . . . . 38 Heat Treatment Chart - For High Carbon Strip Steels (.50, .65, .74 and .95) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Long Terne Coated Sheet Steel - Hot Dipped . . . . . . . . . . . . . . 39 Manufacturing Limitations Chart . . . . . . . . . . . . . . . . . . . . . . . 150 Metric System and Conversion Table . . . . . . . . . . . . . . . 114-118 Music Wire (Pkgd.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Order Information, Trade Customs and Terms of Sale . . 148-149 Phosphor Bronze Strip - 5% A. Spring Temper . . . . . . . . . . . . 80 Pressure Chart - For Computing Blanking Pressure . . . . . . . . 84 Rockwell Hardness Charts . . . . . . . . . . . . . . . . . . . . . . . . 138-141 6 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 7 SAE-AISI Compositions - Carbon and Stainless Steels . . . . . . . . . . 136-137 Sheet Steel - Aluminum Killed, Low Carbon C.R. Drawing Quality . . . . . . 26 Sheet Steel - Low Carbon C.R. - Full Hard to Soft 18-26 and Aluminum Killed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-26 Sheet Steel - Electro Galvanized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Sheet Steel - Long Terne, Hot Dipped . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Sheet Steel - Electro Tin Coated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Shim Brass (Pkgd.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Shim Steel (Pkgd.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Shim Steel (Bulk) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Spring Steel - 4130 Aircraft Alloy Spring Steel Strip . . . . . . . . . . . . . . . . . 47 Spring Steel - C.R. Annealed Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-45 Spring Steel - Stainless Hard C.R. Strip - Types 301, 302 . . . . . . . . . . 53-62 Stainless Steel Strip - Type 301 Tempers, 1/4 Hard to Ext. Hard Incl. . 53-57 Stainless Steel Strip - Type 302 Tempers, Soft to Full Hard Incl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58-62 Stainless Steel Strip - Types 304, 305, 316, 321, 410, 420, 430, 17/7 PH Cond. A and C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63-72 Stainless Types Chart - Chem. Compositions Mechanical Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Strip - C.R. Brass, Bronze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76-80 Strip Steel - Special Accuracy - Tempers 2, 3 and 4 . . . . . . . . . . . . . . . . . 28 Strip Steel - All Tempers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-28 Strip Steel - Annealed Spring Steel (.50, .75 and .95 Carbon) . . . . . . . 43-45 Strip Steel - Special Temper .75 Carbon Spring Steel . . . . . . . . . . . . . . . . 46 Strip Steel - 4130 Aircraft Alloy Spring Steel - Annealed . . . . . . . . . . . . . . 47 Strip Steel - Stainless - Types 301, 302, 304, 305, 410, 420, 430, 17/7 PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-72 Thickness Gage Steel (Feeler Stock) (Pkgd.) . . . . . . . . . . . . . . . . . . . . 82-83 Threaded Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Tin Coated Sheet and Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Tolerances for Over and Under Shipment . . . . . . . . . . . . . . . . . . . . . . . . 131 Tolerance Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119-135 Tool Wrap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-83 Weight Tables - Coil Weights Per Inch of Width . . . . . . . . . . . . . . . . 144-145 Weight Tables - Strip Steel (Weight Per Lineal Foot) . . . . . . . . . . . . . . 86-87 Wire - Cold Rolled Round Edge Flat Wire . . . . . . . . . . . . . . . . . . . . . . . . . 30 Wire - Music Wire for Mechanical Springs (Pkgd.) . . . . . . . . . . . . . . . . 82-83 7 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 8 QUALITY SERVICES P recision Steel people constantly innovate services that will help our customers reach their goals. Not only must we help them stay competitive in today’s marketplace, but provide products and services to enable our industry and their individual companies to compete globally. STATISTICAL PROCESS CONTROL Precision Steel was among the first in the American metal working industry to provide an SPC program. It’s available from both of our plants, to assist our customers in their pursuit of zero defects. Real time data is collected from the time a customer order is entered until the actual product is shipped. Real data is collected six or seven times so our customers can more efficiently run their own operations. In addition, our SPC program provides customers with savings on inspection, set-up and production costs. Order Acknowledgement and Shipping Notice Service Programs. As orders are entered into our system, each customer will automatically receive a computer-generated e-mail. This e-mail can be sent to a single or multiple individuals within the company. It will contain an actual order acknowledgement form on each line item ordered. The information provided is the complete detail of the order with an in house delivery date .In addition to that, it will also contain order status on every order scheduled to ship within the next thirty days. Perfect for your ISO program! Also available is our Shipping Notice e-mail. The information provided is the bill of lading documentation. When your order ships, a computer generated e-mail will be sent to any one or multiple e-mail addresses within the customers organization. The information provided includes, total weight shipped, number of coils,your PO or part number, and a description of the material. All this information will be at your fingertips before the material hits your dock. BAR CODE Bar Coding provides precise, accessible information. It’s an efficient way to keep track of products as they are shipped or received while simultaneously controlling production and inventory. It provides exact, real time data at every step of the production process. If a customer doesn’t have a bar coding system, PSW can advise on the steps to put a program in place. 8 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 9 SUPPORTQUALITY COMMITMENT ISO CERTIFICATION Precision Steel Warehouse Centers in Franklin Park, IL and Charlotte, N.C. have both earned their Certification to ISO. This means work produced for our customers also measures up to most curent international standards. ELECTRONIC DATA INTERCHANGE With Precision Steel’s EDI system, customers can eliminate as many as eight documents with the accurate, up-to-the-minute information that can always be available on their system. This system works effectively with Just-In-Time (JIT) methods to dramatically help reduce inventory levels and order cycle time. Once in place, EDI enables PSW to respond to customer needs with greater reliability, speed and cost-saving efficiency than ever, to further help improve their profitability. 9 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 10 QUALITY PRODUCTS ...TO ELECTRONIC DATA PROCESSING Once we have state-of-the-art people in place, we must complete the package with stateof-the-art equipment. Batteries of high speed, integrated data processing equipment takes control of each order from entry to shipping for maximum efficiencies. This results in time and money savings for our customers in terms of planning and availability of product they need for their own businesses. 10 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:32 PM Page 11 START WITH QUALITY PEOPLE ...FROM INSIDE SALES From a purely selfish point of view, Precision Steel makes sure that we have only the most qualified and dedicated people handling our inside sales team. We are extremely proud of the service they provide and how our customers feel about them. They are as fine a team of experienced steel specialists as there is working anywhere in the world. From the time a customer calls with an inquiry about a price, availability of product or check on their order, it is processed with personal interest and efficient follow-through until the customer is served. 11 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 12 FROM RECEIVING AND INSPECTION... Materials come into both Precision Steel Service Centers from mill sources we have carefully selected to provide products that meet our higher than industry standard qualifications. At that point, our carefully trained and very concerned people take charge. Each shipment is recorded and tagged for size, thickness and temper. Then, it’s routed to our inspection stations for the first of three inspections for finish, thickness, Rockwell hardness. ...TO INVENTORY CONTROL Our customers count on Precision Steel for more sizes, grades and tempers of spring, stainless, genuine strip steels, coated metals and copper base alloys immediately available from our stock. This is only possible through inventory control guidelines that are maintained every day in every manner. Again, our people’s concern for what they do makes this a reality. 12 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 13 ...AND QUALITY CONTROL Precision Steel quality control starts when the product is drawn from stock. For the second time, it’s checked for finish, thickness, and Rockwell hardness. Any deviation from PSW standards and it goes back to the mill. Every step of processing a customer’s order is monitored and measured to assure delivery of exactly what the customer has ordered. All of these techniques must remain in place at all times to maintain our ISO Certification. 13 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 14 FROM PROCESSING... Yes, Precision Steel has state-of-the-art the equipment, but more important we have state-of-the art people operating it. That’s the only way to assure quality products all of the time. Our modern slitting lines can slit steel from .001” through .187” thickness. Modern x-ray gauge systems accurately record metal tolerances to assure performance within specifications. Coils up to 10 tons are flattened and then precision sheared to length on our leveling and blanking line. Positive control assures square blanks and close tolerances. We can process widths from 3/8” to 60” and specialty edges are available with deburring, edge rolling and skiving equipment. 14 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 15 Tab Low Carbon Sheet & Strip 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 16 Tab Low Carbon Sheet & Strip 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 17 PRECISION STEEL® LOW CARBON STEELS INDEX Many of these gauges, hardnesses and grades are also available in our Charlotte Service Center up to 60 Inches wide. C.R. SHEET STEEL (All Tempers including Aluminum Killed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-26 C.R. STRIP STEEL (All Tempers including Aluminum Killed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-27 SPECIAL ACCURACY C.R. STRIP STEEL . . . . . . . . . . . . . . . . . . . . . . . . 28 SHIM STEEL (Hard C.R. Bright) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 FLAT WIRE (Cold Rolled Round Edge) . . . . . . . . . . . . . . . . . . . . . . . . 30-31 TOLERANCE TABLES Accuracy Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 C.R. Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120-122 C.R. Strip and Shim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123-124 C.R. Flat Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Refer to COATED METALS section for Tin, Terne, Zinc, and Aluminized TO CONVERT POUNDS TO KILOGRAMS multiply by .4536 (pounds x .4536 = kg.) TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. X 2.2046 = pounds) 17 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 18 PRECISION BRAND® LOW CARBON COLD ROLLED STEEL SHEET SLIT COILS OR FLAT SHEETS FULL HARD TEMPER Prime Steel Sheets Low Carbon Cold Rolled-Oiled ROCKWELL Approx. B84 Min. .070 and Thicker ROCKWELL Approx B90 Min. .069 and Thinner Meets AISI Standards FULL HARD ROLLED – This is a PRIME QUALITY Low Carbon Cold Rolled Commercial Finish Steel Sheet which has been cold reduced to gage and hardness as indicated. It is priced lower than genuine cold rolled strip steel. It is recommended and generally used in applications where sheet steel’s broader chemical and physical tolerances will permit. Available from stock in full sheet sizes: exact size blanks or in coil form to width for press feeding. This temper is intended for flat work only. It can be roller leveled to remove coil set. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .010 .015 .020 .2540 .3810 .5080 36 48 48 .4080 .6120 .8160 .042 .048 .050 1.0668 1.2192 1.2700 48 48 48 1.7136 1.9584 2.0400 .025 .030 .035 .6350 .7620 .8890 48 48 48 1.0200 1.2240 1.4280 .060 .062 .072 .093 1.5240 1.5748 1.8288 2.3622 48 48 48 48 2.4480 2.5296 2.9376 3.7944 NOTE - All thicknesses thinner than .015 have been rolled on tin mill equipment and have a brighter finish. Suggested Rockwell Tests • B scale for .040 and thicker • 30T scale for .025 to .039 • Under .025 use 15T Scale. TO CONVERT POUNDS TO KILOGRAMS multiply by .4536 (pounds x .4536 = kg.) 18 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 19 PRECISION BRAND® LOW CARBON COLD ROLLED STRIP STEEL SLIT COILS OR FLAT STRIP NO. 1 TEMPER Full Hard Prime Quality Strip Steel Low Carbon Cold Rolled MEAN TENSILE 80,000 P.S.I. ROCKWELL B84 MIN. .070 and Thicker ROCKWELL B90 MIN. .069 and Thinner AISI 1010, ASTM A 109 Meets all AISI Standards Bright No. 2 Finish Oiled A SUPERIOR PRODUCT – FULL HARD ROLLED. Genuine Cold Rolled Strip Steel. The product of modern Grain strip mills to strip steel (not sheet) tolerances. See the sheet and strip tolerance pages in this catalog. This temper intended for flatwork and punching only as it has not been annealed after final cold rolling and is very stiff and springy. It will take a slight set across the grain before fracture. Can be roller leveled to remove coil set. Can be furnished in coils or lengths, slit to width as required or edged. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .032 .035 .037 .040 .042 .8128 .8890 .9398 1.0160 1.0668 23 23 23 23 23 15⁄16 15⁄16 1.3056 1.4280 1.5096 1.6320 1.7136 .2448 .2856 .3264 .4080 .4896 .045 .048 .050 .058 .062 1.1430 1.2192 1.2700 1.4732 1.5748 23 23 23 23 23 15⁄16 15⁄16 .5508 .6120 .6528 .7344 .8160 .064 .065 .072 .078 .093 1.6256 1.6510 1.8288 1.9812 2.3622 23 23 23 23 23 15⁄16 15⁄16 .8976 .9792 1.0200 1.1424 1.2240 1.2648 .095 .105 .125 .134 .156 .187 2.4130 2.6670 3.1750 3.4036 3.9624 4.7498 23 23 23 23 23 23 15⁄16 15⁄16 NOTE - For sizes .001” to .005” inclusive refer to Shim Classification. Complete slitting facilities all thicknesses. .006* .007* .008* .010 .012 .1524 .1778 .2032 .2540 .3048 23 23 23 23 23 15⁄16 15⁄16 .0135 .015 .016 .018 .020 .3429 .3810 .4064 .4572 .5080 23 23 23 23 23 15⁄16 15⁄16 .022 .024 .025 .028 .030 .031 .5588 .6096 .6350 .7112 .7620 .7874 23 23 23 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 1.8360 1.9584 2.0400 2.3664 2.5296 2.6110 2.6520 2.9376 3.1824 3.7944 3.8760 4.2835 5.1000 5.4672 6.3648 7.6296 Suggested Rockwell Tests • B Scale for .040 and thicker • 30T Scale for .025 to .039 • Under .025 use 15T Scale. *Coils only. All other sizes available in coil or cut lengths. TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. x 2.2046 = pounds) 19 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 20 PRECISION BRAND® LOW CARBON COLD ROLLED STEEL SHEET SLIT COILS OR FLAT SHEETS HALF HARD TEMPER Prime Steel Sheets Low Carbon Cold Rolled – Oiled ROCKWELL B70/85 Approx. Meets all AISI Standards HALF HARD. This is a Prime Quality Low Carbon Cold Rolled Commercial Finish Steel Sheet which has been cold reduced to gage and hardness as indicated. It is priced lower than Genuine Strip Steel. It is recommended and generally used in applications where sheet steel’s broader chemical and physical tolerances will permit. Available from stock in full sheet sizes, exact size blanks or in coil form to width for press feeding. This temper is intended for easy forming across the grain and a limited amount along the grain. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .015 .018 .020 .025 .3810 .4572 .5080 .6350 48 48 48 48 .6120 .7344 .8160 1.0200 .042 .048 .050 .060 1.0668 1.2192 1.2700 1.5240 48 48 48 48 1.7136 1.9584 2.0400 2.4480 .030 .032 .035 .040 .7620 .8128 .8890 1.0160 48 48 48 48 1.2240 1.3056 1.4280 1.6320 .062 .065 .074 .090 1.5748 1.6510 1.8796 2.2860 48 48 48 48 2.5296 2.6520 3.0192 3.6716 WHEN ORDERING LENGTHS, save by specifying in multiples. Suggested Rockwell Tests • B Scale for .040 and thicker • 30T Scale for .025 to .039 • Under .025 use 15T Scale. TO CONVERT POUNDS TO KILOGRAMS multiply by .4536 (pounds x .4536 = kg.) 20 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 21 PRECISION BRAND® LOW CARBON COLD ROLLED STRIP STEEL SLIT COILS OR FLAT STRIP NO. 2 TEMPER Half Hard Prime Quality Strip Steel Low Carbon Cold Rolled MEAN TENSILE 64,000 P.S.I. ROCKWELL B70/85 AISI 1010, ASTM A 109 Meets all AISI Standards Bright No. 2 Finish Oiled Across The Grain A SUPERIOR PRODUCT – HALF HARD. Genuine Cold Rolled Strip Steel. The product of modern strip mills to strip steel (not sheet) tolerances. See sheet and strip steel tolerance pages in this catalog. This temper has had considerable cold rolling after annealing. Will take a right angle bend across the grain and a limited amount with the grain. Can be furnished in coils or cut lengths, slit to width as desired. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches .008* .010 .012 .014 .015 .2032 .2540 .3048 .3556 .3810 23 23 23 23 23 15⁄16 15⁄16 .016 .018 .020 .022 .025 .4064 .4572 .5080 .5588 .6350 23 23 23 23 23 15⁄16 15⁄16 .028 .030 .031 .032 .035 .7112 .7620 .7874 .8128 .8890 23 23 23 23 23 15⁄16 15⁄16 .040 .042 .048 .050 .058 1.0160 1.0668 1.2192 1.2700 1.4732 23 23 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches .3264 .4080 .4896 .5712 .6120 .060 .062 .065 .074 .078 1.5240 1.5748 1.6510 1.8796 1.9812 23 23 23 23 23 15⁄16 15⁄16 .6528 .7344 .8160 .8976 1.0200 .083 .090 .093 .095 .109 2.1082 2.2860 2.3622 2.4130 2.7686 23 23 23 23 23 15⁄16 15⁄16 1.1424 1.2240 1.2648 1.3056 1.4280 .120 .125 .134 .156 .187 3.0480 3.1750 3.4036 3.9624 4.7498 23 23 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 Lbs. Per Sq. Ft. 2.4480 2.5296 2.6520 3.0192 3.1824 3.3864 3.6720 3.7944 3.8760 4.4472 4.8954 5.1000 5.4672 6.3648 7.6296 1.6320 1.7136 1.9584 2.0400 2.3664 Suggested Rockwell Tests • B Scale for .040 and thicker • 30T for .025 to 039 • Under .025 use 15T Scale. *Coils only. All other sizes available in coil or cut lengths. TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. x 2.2046 = pounds) 21 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 22 PRECISION BRAND® LOW CARBON COLD ROLLED STEEL SHEETSLIT COILS OR FLAT SHEETS QUARTER HARD TEMPER Prime Steel Sheets Low Carbon Cold Rolled – Oiled ROCKWELL B60/75 Approx. Meets all AISI Standards QUARTER HARD. This is a PRIME QUALITY Low Carbon Cold Rolled Commercial Finish Steel Sheet which has been cold reduced to gage and hardness as indicated. It is priced lower than Genuine Strip Steel. It is recommended and generally used in applications where sheet steel’s broader chemical and physical tolerances will permit. Available from stock in full sheet sizes, exact size blanks or in coil form to width for press feeding. It is used where some stiffness is required, will take fairly severe bends and shallow draws. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .015 .018 .020 .025 .3810 .4572 .5080 .6350 48 48 48 48 .6120 .7343 .8160 1.0200 .060 .062 .065 .072 1.5240 1.5748 1.6510 1.8288 48 48 48 48 2.4480 2.5296 2.6520 2.9376 .028 .030 .032 .035 .7112 .7620 .8128 .8890 48 48 48 48 1.1424 1.2240 1.3056 1.4280 .074 .090 .093 1.8796 2.2860 2.3622 48 48 48 3.0192 3.7620 3.7944 .040 .042 .048 .050 1.0160 1.0668 1.2192 1.2700 48 48 48 48 1.6320 1.7136 1.9584 2.0400 Suggested Rockwell Tests • B scale for .040 and thicker • 30T scale for .025 to .039 • Under .025 use 15T Scale. TO CONVERT POUNDS TO KILOGRAMS multiply by .4536 (pounds x .4536 = kg.) 22 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 23 PRECISION BRAND® LOW CARBON COLD ROLLED STRIP STEEL SLIT COILS OR FLAT STRIP NO. 3 TEMPER Quarter Hard Prime Quality Strip Steel Low Carbon Cold Rolled MEAN TENSILE 54,000 P.S.I. ROCKWELL B60/75 AISI 1010, ASTM A 109 Meets all AISI Standards Bright No. 2 Finish Oiled A Superior Product – QUARTER HARD. Genuine Cold Rolled Strip Steel. The product of modern strip mills to strip steel (not sheet) tolerances. See sheet Across The Grain and strip steel tolerance pages in this catalog. This temper has had a moderate amount of cold rolling after annealing. Will bend at right angles either way of the grain, and down on itself across the grain. Will take a moderate amount of shallow draw. Used for parts requiring more severe bends than possible with harder tempers and when greater stiffness is required than in softer tempers. Can be supplied in either coils, cut lengths or slit to width as specified. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches .010 .012 .015 .016 .018 .020 .022 .2540 .3048 .3810 .4064 .4572 .5080 .5588 23 23 23 23 23 23 23 15⁄16 15⁄16 .024 .025 .028 .030 .031 .032 .035 .6096 .6350 .7112 .7620 .7874 .8128 .8890 23 23 23 23 23 23 23 15⁄16 15⁄16 .037 .040 .042 .045 .048 .050 .9398 1.0160 1.0668 1.1430 1.2192 1.2700 23 23 23 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. 2.3664 2.4480 2.5296 2.6109 2.6520 2.9376 3.0192 .4080 .4896 .6120 .6528 .7344 .8160 .8976 .058 .060 .062 .064 .065 .072 .074 1.4732 1.5240 1.5748 1.6256 1.6510 1.8288 1.8796 23 23 23 23 23 23 23 15⁄16 15⁄16 .9792 1.0200 1.1424 1.2240 1.2648 1.3056 1.4280 .078 .083 .090 .093 .095 .100 .109 1.9812 2.1082 2.2860 2.3622 2.4130 2.5400 2.7686 23 23 23 23 23 23 23 15⁄16 15⁄16 1.5096 1.6320 1.7136 1.8360 1.9584 2.0400 .119 .125 .134 .156 .187 3.0226 3.1750 3.4036 3.9624 4.7498 23 23 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 3.1824 3.3864 3.7620 3.7944 3.8760 4.0795 4.4472 4.8495 5.1000 5.4672 6.3648 7.6296 Suggested Rockwell Tests • B scale for .040 and thicker • 30T scale for .025 to .039 • Under .025 use 15T Scale. All sizes available in coil or cut lengths. TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. x 2.2046 = pounds) 23 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 24 PRECISION BRAND® LOW CARBON COLD ROLLED STEEL SHEETSLIT COILS OR FLAT SHEETS SOFT TEMPER Prime Steel Sheets Commercial Quality-Oiled* Commercial Finish ROCKWELL B65 Max.– Approx. ASTM A1008 Meets all AISI Standards *Some may now call this “Commerical Steel Type B” SOFT and WORKABLE. This is a Prime Quality Low Carbon Cold Rolled Commercial Finish Steel Sheet which has been lightly pinch rolled after its final annealing. It is priced lower than Genuine Strip Steel. It is recommended and generally used in applications where sheet steel’s broader chemical and physical tolerances will permit. Available from stock in full sheet sizes, exact size blanks or in coil form to width for press feeding. It may be stamped, formed or easily drawn but not guaranteed for deep drawing. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .008* .010 .012 .015 .018 .2032 .2540 .3048 .3810 .4572 36 36 36 48 48 .3264 .4080 .4896 .6120 .7344 .042 .048 .050 .058 .060 1.0668 1.2192 1.2700 1.4732 1.5240 48 48 48 48 48 1.7136 1.9584 2.0400 2.3661 2.4480 .020 .024 .025 .028 .030 .5080 .6096 .6350 .7112 .7620 48 48 48 48 48 .8160 .9792 1.0200 1.1424 1.2240 .062 .065 .074 .078 .083 1.5748 1.6510 1.8796 1.9812 2.1082 48 48 48 48 48 2.5296 2.6520 3.0192 3.1824 3.3864 .031 .032 .035 .038 .040 .7874 .8128 .8890 .9652 1.0160 48 48 48 48 48 1.2648 1.3056 1.4280 1.5552 1.6320 .090 .093 .104 .119 .125 2.2860 2.3622 2.6416 3.0226 3.1750 48 48 48 48 48 3.6720 3.7944 4.2427 4.8852 5.1000 NOTE-All thicknesses thinner than .015 have been rolled on tin mill equipment and have a brighter finish. Suggested Rockwell Tests • B scale for .040 and thicker • 30T scale for .025 to .039 • Under .025 use 15T Scale. *Coils only TO CONVERT POUNDS TO KILOGRAMS multiply by .0436 (pounds x .4536 = kg.) 24 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 25 PRECISION BRAND® LOW CARBON COLD ROLLED STRIP STEEL SLIT COILS OR FLAT STRIP NO. 4 TEMPER Pinch Pass or Skin Rolled Prime Quality Strip Steel Bright No. 2 Finish Oiled MEAN TENSILE 48,000 P.S.I. ROCKWELL B65 Maximum AISI 1010, ASTM A 109 A SUPERIOR PRODUCT -SKIN ROLLED OR PINCH PASS TEMPER. A genuine Cold Rolled Strip Steel. The product of modern strip mills to strip steel (not sheet) tolerances. See Grain Sheet and Strip Steel tolerance pages in this catalog. This steel has had a very light skin pass after the final anneal to improve the finish and to avoid the possibility of surface strains showing after material has been worked. Recommended for moulding, tubular or moderate drawing requirements. Can be furnished in either coils or cut lengths. Slit to width as required. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .010 .012 .014 .015 .016 .2540 .3048 .3556 .3810 .4064 23 23 23 23 23 15⁄16 .4080 .4896 .5712 .6120 .6528 .058 .060 .062 .065 .072 1.4732 1.5240 1.5748 1.6510 1.8288 23 23 23 23 23 15⁄16 .018 .020 .025 .028 .030 .4572 .5080 .6350 .7112 .7620 23 23 23 23 23 15⁄16 .7344 .8160 1.0200 1.1424 1.2240 .074 .078 .083 .090 .093 1.8796 1.9812 2.1082 2.2860 2.3622 23 23 23 23 23 15⁄16 .031 .032 .035 .037 .040 .7874 .8128 .8890 .9398 1.0160 23 23 23 23 23 15⁄16 1.2648 1.3056 1.4280 1.5096 1.6320 .095 .104 .109 .119 .125 2.4130 2.6416 2.7686 3.0226 3.1750 23 23 23 23 23 15⁄16 .042 .048 .050 1.0668 1.2192 1.2700 23 23 23 15⁄16 1.7136 1.9584 2.0400 .134 .156 .187 3.4036 3.9624 4.7498 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 Thickness Max. Width Dec. Inches Equiv. MM Inches 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 Lbs. Per Sq. Ft. 2.3664 2.4480 2.5296 2.6520 2.9376 3.0192 3.1824 3.3864 3.7620 3.7944 3.8760 4.2427 4.4472 4.8552 5.1000 5.4672 6.3648 7.6296 TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. x 2.2046 = pounds) 25 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:33 PM Page 26 PRECISION BRAND® LOW CARBON COLD ROLLED STEEL SHEETSLIT COILS OR FLAT SHEETS ALUMINUM KILLED DRAWING QUALITY* Low Carbon Cold Rolled Commerical Finish PRIME QUALITY ASTM A1008 .018 and over ASTM A623 .015 and under Meets all AISI Standards *Some may call this “Drawing Steel Type B” THIS QUALITY is produced especially for fabricating into parts requiring severe forming or drawing operations too difficult for the drawing properties of Commercial Quality Cold Rolled Steel Sheet, but only with the breakage allowances as negotiated to meet specific requirements. It comes with a dull surface texture suitable for the application of various organic finishes, such as paints, enamels or lacquers, but is not suitable for electroplating where surface uniformity of the finished product is essential. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .010 .012 .015 .018 .020 .2540 .3048 .3810 .4572 .5080 36 36 36 48 48 .4080 .4896 .6120 .7344 .8160 .045 .048 .050 .060 .062 1.1430 1.2192 1.2700 1.5240 1.5748 48 48 48 48 48 1.8360 1.9584 2.0400 2.4480 2.5296 .022 .024 .025 .028 .030 .5588 .6096 .6350 .7112 .7620 48 48 48 48 48 .8976 .9792 1.0200 1.1424 1.2240 .070 .074 .090 .093 .105 1.7780 1.8796 2.2860 2.3622 2.6670 48 48 48 48 48 2.8556 3.0192 3.6720 3.7944 4.2835 .032 .035 .037 .040 .042 .8128 .8890 .9398 1.0160 1.0668 48 48 48 48 48 1.3056 1.4280 1.5096 1.6320 1.7136 .109 .120 2.7686 3.0480 48 48 4.4467 4.8954 (1) All thicknesses thinner than .016 have been rolled on Tin Mill equipment and have a brighter finish. Suggested Rockwell Tests • B scale for .040 and thicker • 30T scale for .025 to .039 • Under .025 use 15T Scale. TO CONVERT POUNDS TO KILOGRAMS multiply by .4536 (pounds x .4536 = kg.) 26 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 27 PRECISION BRAND® LOW CARBON COLD ROLLED STRIP STEEL SLIT COILS OR FLAT STRIP NO. 5 TEMPER ALUMINUM KILLED Soft and Ductile Prime Quality Strip Steel Low Carbon C.R. and Annealed MEAN TENSILE 44,000 P.S.I. ROCKWELL B55 Max. Approx. AISI 1008, ASTM A 109 Meets all AISI Standards Bright No. 2 Finish Oiled ALUMINUM KILLED, SOFT and DUCTILE- This Prime Quality Cold Rolled Strip Steel has been manufactured for us by America’s leading producers of fine quality strip steels. This is Grain the Standard Type Low Carbon Aluminum Killed Steel most generally specified and meets all AISI specifications for quality. It has been produced specifically to meet the requirements for difficult drawing and forming operations. It combines uniformity of chemical composition with mechanical properties best suited for these operations. It is non-aging to an exceptionable degree and almost wholly free from fluting. This is an excellent material in sustained demand. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches .008 .010 .012 .015 .016 .2032 .2540 .3048 .3810 .4064 23 23 23 23 23 15⁄16 .018 .020 .025 .026 .028 .4572 .5080 .6350 .6604 .7112 23 23 23 23 23 15⁄16 .030 .031 .032 .035 .039 .7620 .7874 .8128 .8890 .9906 23 23 23 23 23 15⁄16 .040 .041 1.0160 1.0414 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 Lbs. Per Sq. Ft. .3264 .4080 .4896 .6120 .6528 .7344 .8160 1.0200 1.0608 1.1424 1.2240 1.2648 1.3056 1.4280 1.5910 1.6320 1.6726 Thickness Max. Width Dec. Inches Equiv. MM Inches .042 .048 .050 .058 .060 .062 .065 1.0668 1.2192 1.2700 1.4732 1.5240 1.5748 1.6510 23 23 23 23 23 23 23 15⁄16 .072 .074 .078 .083 .090 1.8288 1.8796 1.9812 2.1082 2.2860 23 23 23 23 23 15⁄16 .093 .095 .109 .120 .125 .187 2.3622 2.4130 2.7686 3.0480 3.1750 4.7498 23 23 23 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 Lbs. Per Sq. Ft. 1.7136 1.9584 2.0400 2.3664 2.4480 2.5296 2.6520 2.9373 3.0192 3.1824 3.3864 3.6720 3.7944 3.8760 4.4472 4.8954 5.0994 7.6287 Suggested Rockwell Tests • B scale for .040 and thicker • 30T for .025 to .039 • Under .025 use 15T Scale. TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. x 2.2046 = pounds) 27 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 28 PRECISION BRAND® LOW CARBON COLD ROLLED STEEL STRIP SLIT COILS OR FLAT STRIP SPECIAL ACCURACY STRIP Rolled to Restricted (± .001) Thickness Tolerances Low Carbon Cold Rolled Bright No. 2 Finish Oiled RESTRICTED THICKNESS TOLERANCES – The following listing represents stock sizes of special accuracy strip rolled to plus or minus .001” in thickness (including Crown), regardless of width. Intended for use where great thickness accuracy in finished parts is necessary. The tempers listed conform to analysis and hardness ranges listed elsewhere in this catalog and the material is Prime Quality C.R. Strip Steel. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches NO. 3 TEMPER QUARTER HARD NO. 2 TEMPER HALF HARD .018 .020 .025 .030 .4572 .5080 .6350 .7620 23 23 23 23 15⁄16 15⁄16 .032 .035 .040 .042 .8128 .8890 1.0160 1.0668 23 23 23 23 15⁄16 15⁄16 .045 .048 .050 .062 1.1430 1.2192 1.2700 1.5748 23 23 23 23 15⁄16 15⁄16 .018 .020 .022 .025 .4572 .5080 .5588 .6350 23 23 23 23 15⁄16 15⁄16 .030 .032 .035 .7620 .8128 .8890 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 Lbs. Per Sq. Ft. .7344 .8160 1.0200 1.2240 .018 .020 .022 .025 .4572 .5080 .5588 .6350 23 23 23 23 15⁄16 15⁄16 1.3056 1.4280 1.6320 1.7136 .030 .032 .035 .040 .7620 .8128 .8890 1.0160 23 23 23 23 15⁄16 15⁄16 1.8360 1.9584 2.0400 2.5296 .042 .048 .050 .062 1.0668 1.2192 1.2700 1.5748 23 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 .7344 .8160 .8976 1.0200 1.2240 1.3056 1.4280 1.6320 1.7136 1.9584 2.0400 2.5296 NO. 4 TEMPER SKIN ROLLED 15⁄16 15⁄16 15⁄16 .7344 .8160 .8976 1.0200 .040 .042 .048 .050 1.0160 1.0668 1.2192 1.2700 23 23 23 23 15⁄16 15⁄16 15⁄16 15⁄16 1.6320 1.7136 1.9584 2.0400 1.2240 1.3056 1.4280 .058 .062 1.4732 23 1.5748 23 15⁄16 15⁄16 2.3664 2.5296 Available in coils or cuts lengths. Sizes other than those listed and in all thicknesses .001 and heavier are obtainable and may be ordered for you. Suggested Rockwell Tests • B scale for .040 and thicker • 30T scales for .025 to .039 • Under .025 use 15T Scale. TO CONVERT POUNDS TO KILOGRAMS multiply by .4536 (pounds x .4536 = kg.) 28 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 29 PRECISION BRAND® LOW CARBON COLD ROLLED SHIM STEEL AN ACCURACY STRIP MILL PRODUCT HARD COLD ROLLED SHIM QUALITY Bright No. 2 Finish Rolled to Restricted (+/-.0005) Thickness Tolerances. Coils or Lengths Rolled specifically for us to restricted tolerances, this is a Low Carbon Cold Rolled Strip Steel with a maximum carbon content up to 0.25% and extremely accurate in thickness, with a Rockwell range of B90/100. It is universally used for automobile and truck axle shims, for tool and die alignment purposes, arbor spacers and where combined hardness, flatness and accuracy is important. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .001 .0015 .002 .003 .004 .0254 .0381 .0508 .0762 .1016 12” 12” 14” 14” 14” .0408 .0612 .0816 .1224 .1632 .032 .035 .037 .040 .042 .8128 23 .8890 .9398 1.0160 1.0668 1.3056 1.4280 1.5096 1.6320 1.7136 .005 .006 .007 .008 .010 .1270 .1524 .1778 .2032 .2540 14” 14” 14” 14” 14” .2040 .2448 .2856 .3264 .4080 .048 .050 1.2192 1.2700 1.4732 1.5748 1.9584 2.0400 .012 .0135 .015 .016 .018 .3048 .3429 .3810 .4064 .4572 14” 14” 14” 14” 14” .4896 .5508 .6120 .6528 .7344 IN STOCK .001” to .031” THICK, 6” AND 12” WIDE, PACKAGES OR BULK COILS. For pre-packaged items write for free catalog: .020 .022 .025 .028 .031 .5080 .5588 .6350 .7112 .7874 14” 14” 14” 14” 14” .8160 .8976 1.0200 1.1424 1.2648 Precision Brand Products, Inc. Subsidiary of Precision Steel Warehouse, Inc. 2250 Curtiss Street Downers Grove, IL 60515-4038 TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. x 2.2046 = pounds) 29 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 30 PRECISION BRAND® LOW CARBON COLD ROLLED FLAT WIRE COILS OR LENGTHS HALF HARD NO. 2 TEMPER No. 4 Round Edge No. 2 Bright Finish ROCKWELL B65/80 Precision Brand® FLAT WIRE comes with a bright cold rolled surface with nicely rounded rolled edges (mill product). Stocked as it comes from our mill source both in coils and straightened 12-foot lengths. Coils may be straightened and cut to any convenient multiple of your blank sizes. MILL COILS or STANDARD 12’ MILL LENGTH Width Thickness in Dec. In. Equiv. MM Inches .032 .035 .8128 .8890 .050 1.2700 .062 1.5748 .083 2.1082 1/4 5/16 3/8 1/2 5/8 3/4 7/8 1 1 1/4 1 1/2 3/16 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 1 1/4 1 1/2 3/16 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 3/16 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 1 1/4 1 1/2 1/4 5/16 3/8 1/2 5/8 Est. Wt. 12’ Bar Wt. Per Lin Ft. Thickness Pounds Dec. In. Equiv. MM .324 .408 .492 .648 .816 .984 1.140 1.308 1.632 1.956 .264 .360 .444 .540 .624 .720 .888 1.068 1.248 1.428 1.788 2.148 .384 .516 .636 .768 .888 1.020 1.272 1.536 1.788 2.040 .474 .629 .791 .949 1.106 1.265 1.582 1.898 2.214 2.530 3.162 3.794 .847 1.058 1.271 1.693 2.117 .027 .034 .041 .054 .068 .082 .095 .109 .136 .163 .022 .030 .037 .045 .052 .060 .074 .089 .104 .119 .149 .179 .032 .043 .053 .064 .074 .085 .106 .123 .149 .170 .040 .053 .066 .079 .092 .105 .132 .158 .185 .211 .264 .316 .071 .088 .106 .141 .176 .083 2.1082 .093 2.3622 .109 2.7686 .125 3.1750 .156 3.9624 .187 4.7498 Width in Inches 3/4 1 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 1 1/8 1 1/4 1 1/2 1 3/4 3/8 1/2 5/8 3/4 1 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1 1/8 1 1/4 1 3/8 1 1/2 1 3/4 2 3/8 1/2 3/4 1 3/8 7/16 1/2 5/8 3/4 1 1 1/4 1 1/2 Est. Wt. 12’ Bar Wt. Per Lin Ft. Pounds 2.540 3.386 .949 1.186 1.423 1.661 1.897 2.372 2.846 3.310 3.794 4.268 4.744 5.386 6.283 1.668 2.220 2.784 3.336 4.452 1.272 1.596 1.908 2.232 2.556 2.869 3.192 3.828 4.464 5.100 5.737 6.372 7.013 7.656 8.926 10.200 2.388 3.192 4.776 6.372 2.868 3.337 3.828 4.776 5.736 7.656 9.564 11.472 .212 .282 .079 .099 .119 .138 .158 .198 .237 .277 .316 .356 .395 .449 .524 .139 .185 .232 .278 .371 .106 .133 .159 .186 .213 .239 .266 .319 .372 .425 .478 .531 .584 .638 .744 .850 .199 .266 .398 .531 .239 .278 .319 .398 .478 .636 .795 .954 NOTE – In addition to the MILL EDGED Product as above we offer Round Edging Service on all metals – all tempers. And in odd widths up to 3” wide. 30 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Tab Coated Merals Page 31 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Tab Coated Merals Page 32 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 33 PRECISION STEEL® COATED METALS INDEX Many of these gauges, hardnesses and grades are also available in our Charlotte Service Center. Tin Plate Facts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-35 Electrolytic Tin Coated Steel All Tempers, Bright And Matte Finishes . . . . 36 Useful Coated Metal Facts (Comparisons) . . . . . . . . . . . . . . . . . . . . . . . . . 37 Electro Galvanized Steel Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 TOLERANCE TABLES Long Terne, and Galvannealed Sheet . . . . . . . . . . . . . . . . . . . . . . . . 120-122 Electro Tin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Electro Zinc Coated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 TO CONVERT POUNDS TO KILOGRAMS multiply By .4536 (pounds x .4536 = kg.) TO CONVERT KILOGRAMS TO POUNDS multiply By 2.2046 (kg. x 2.2046 = pounds) 33 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 34 USEFUL TIN PLATE FACTS BASE WEIGHT TABLE for TIN PLATE Wt., lb. Equiv. Wt. Per Base Lb Per Box Sq. Ft. Theoretical Thickness Inch Eqiv. MM Wt., lb. Equiv. Wt. Per Base Lb Per Box Sq. Ft. Theoretical Thickness Inch Eqiv. MM 55 60 65 70 0.2526 0.2755 0.2985 0.3214 0.0061 0.0066 0.0072 0.0077 .1549 .1676 .1829 .1956 155 168 175 180 0.7117 0.7714 0.8036 0.8265 0.0171 0.0185 0.0193 0.0198 .4343 .4699 .4902 .5029 75 80 85 90 0.3444 0.3673 0.3903 0.4133 0.0083 0.0088 0.0094 0.0099 .2108 .2235 .2388 .2515 188 195 208 210 0.8633 0.8954 0.9551 0.9643 0.0207 0.0215 0.0229 0.0231 .5258 .5461 .5817 .5867 95 100 107 112 0.4362 0.4592 0.4913 0.5143 0.0105 0.0110 0.0118 0.0123 .2667 .2794 .2997 .3124 215 228 235 240 0.9872 1.0469 1.0791 1.1020 0.0237 0.0251 0.0259 0.0264 .6020 .6375 .6579 .6706 118 128 135 139 148 0.5418 0.5878 0.6199 0.6383 0.6796 0.0130 0.0141 0.0149 0.0153 0.0163 .3302 .3581 .3785 .3886 .4140 248 255 268 270 275 1.1388 1.1709 1.2306 1.2398 1.2628 0.0273 0.0281 0.0295 0.0297 0.0303 .6934 .7137 .7493 .7544 .7696 TIN PLATE TEMPER DESIGNATIONS Temper designations as applied to Tin Mill products are diametrically opposite to those used to indicate the degree of hardness for Cold Rolled Strip and Sheet Steels. To illustrate. #1 Temper (T-1) in the Tin Mill numbering system indicates a Dead Soft condition, whereas #1 Temper as concerns C.R. Strip and Sheet Steel indicates a Full Hard Rolled Condition. For Temper refer to definitions, in this catalog. 34 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 35 USEFUL TIN PLATE FACTS FOR REFERENCE ONLY- To avoid confusion specify Rockwell hardness. Characteristics Temper Aim Rockwell 53 Max. Soft for drawing T-2 49 – 57 For Moderate Drawing – Some Stiffness Required T-5 CA TU 53 – 59 Shallow Drawing for General Purpose with Fair T-6 Degree of Stiffness T-4 Approximate Only T-1 T-3 57 – 65 For General Purpose with Increased Stiffness Characteristics 30 -T Scale T-5 T-6 CA 61 – 69 Rephosphorized Steel – Stiffness to resist buckling Approximate Only Temper Aim Rockwell 30 -T Scale 61 – 69 Continuous Anneal Not Rephosphorized 67 – 73 Rephosphorized Steel – for great stiffness 67 – 73 Continuous Anneal Rephosphorized for Great Stiffness DEFINITIONS BRIGHT REFLOW FINISH – This is a bright Tin Coated thin Steel Sheet that has been electroplated on both sides with commercially pure tin. Its high luster tin finish results from an in-process melt and quench and is similar in appearance to the familiar hot dipped tin plate. Because of its strength, corrosion resistance, high luster and comparative low price, it finds wide acceptance for tin cans, crown caps, bottle tops, kitchen utensils, toys, electrical and electronic parts, etc. It is stocked by us in 1/4, 1/2, 3/4 pound and 1 pound coatings and in a wide range of tempers. DULL MATTE FINISH – Dull Matte Finish Electrolytic Tin Plate is in all respects identical to Bright Reflow Tin Plate except in appearance which is grey-white and semi-lustrous as it comes from the plating bath. It is non-toxic. This Dull Matte Finish serves as an excellent base for paints, enamels and lithograph applications. It can be soldered readily, formed on high speed equipment and is relatively inexpensive. We stock this in a wide range of tempers and sizes. BASE BOX TIN PLATE – (For reference only - our prices are based per 100 pounds.) A base box is measured in terms of pounds per base box. (112 sheets 14” x 20”) a unit peculiar to the tin plate industry and refers to thickness indirectly. This corresponds to an area of sheet totaling 31,360 square inches of any gage and is applied to tin plate weighing from 55 to 275 pounds per base box. TO CONVERT weight per base box to decimal thickness multiply by .00011. SAVE PLATING COSTS – USE PRE-COATED STEEL 35 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 36 PRECISION BRAND ELECTROLYTIC TIN COATED STEEL SLIT COILS OR FLAT SHEETS ® PRIME COMMERCIAL QUALITY Meets all ASTM Standards Tin Plate under .0149 ASTM A624 Tin Coated Sheet ASTM A 599 Listed below, we catalog the many thicknesses of Electrolytic – Tin Plate sizes regularly stocked by us and immediately available for slitting to required widths. This represents substantial on-hand tonnages in a wide range of tin plate tempers both in the Bright and in the Dull Matte finishes. In Stock: Bright Reflow and/or Dull Matte Finish Tempers from Soft Deep Draw to Stiff Temper T-5 CA. Inc’l. Thickness Max. Width Lbs. Per Dec. Inches Equiv. MM Inches Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .0061* .0077* .0083* .0088* .1549 .1956 .2108 .2235 36 36 36 36 0.2526 0.3214 0.3444 0.3673 .0141 .0149 .016 .018 .3581 .3785 .4064 .4572 36 36 36 36 0.5878 0.6199 0.6528 0.7344 .0094* .0099* .0105 .0110 .2388 .2515 .2667 .2794 36 36 36 36 0.3903 0.4133 0.4362 0.4592 .020 .023 .024 .025 .5080 .5842 .6096 .6350 36 36 36 36 0.8160 0.9384 0.9792 1.0200 .0118 .0123 .0130 .0135 .2997 .3124 .3302 .3429 36 36 36 36 0.4913 0.5143 0.5418 0.5636 .030 .031 .035 .7620 .7874 .8890 36 36 36 1.2240 1.2648 1.4278 Sizes and finishes not in stock are available on special order. * Coils only. All other sizes available in coil or cut length. AVERAGE THICKNESS OF TIN COATING (each surface) 1/4 Pound Per Base Box 0.000015” 3/4 Pound Per Base Box 0.000045” 1/2 Pound Per Base Box 0.000030” 1 Pound Per Base Box 0.000060” Note – HOT DIPPED Tin Coated – Special Service Cold Rolled Strip Steel in your required sizes may be Tin Coated by the hot dipped process. 36 Appearance EXCELLENT POOR Can be spot or seam welded. EXCELLENT Equal to forming qualities of the base metal used. Coating tightly adheres to surface in forming, embossing and shallow drawing. 12:34 PM GOOD Need good fluxing agent. GOOD Forms similar to hot dipped galvanized however, the iron-zinc alloy may powder on the compression side when severely formed. EXCELLENT Equal to forming qualities of the base metal used. Coating tightly adheres to surface in forming and drawing applications. May require different lubrication from uncoated metals. Type I – GOOD Type 2 – EXCELLENT For exterior applications. EXCELLENT Type 1 and Type 2 EXCELLENT Used without further finishing for interior parts subjected to elevated temperatures. Soft, Satiny Finish. Type 1 – Sheet steel hot – dip coated on both sides with aluminum-silicon alloy by the continuous method. Type 2 – Available on special order where atmospheric corrosion resistance is of primary importance. Coils or cut lengths. ALUMINIZED SHEET 10/17/08 GOOD EXCELLENT For long-lasting corrosion protection when painted properly. GOOD Used in interior auto instruments, brackets, hinges, where some corrosion resistance is required. GOOD EXCELLENT Can be painted in the as shipped condition. Some applications may need a primer before painting. EXCELLENT When bonderized finish is used. Used in sign blanks and other applications where added rust protection is required. NOT RECOMMENDED Where appearance is essential. EXCELLENT Equal to forming qualities of the base metal used. Coating tightly adheres to surface in forming and drawing application s. Self lubricating. GOOD Best use is for painted applications. GOOD Finish generally acceptable on interior parts. Dull Grey. EXCELLENT Equal to forming qualities of the base metal used. Coating tightly adheres to surface in forming and drawing applications. Light Grey Matte Finish. Silver Grey Matte Finish. (Soft and Ductile) Sizes .015 to .062. Standard Coating. Stocked in Prime Commercial quality meets all AlSl standards. Other tempers available upon request. Coils or cut lengths. GOOD Used in automotive gas tanks, roofing shingles, etc. Carbon Sheet Steel with a zinc coating both sides that has been heat treated to form an iron-zinc alloy layer underneath the zinc and on top of steel. SHEET Standard commercial quality coat, plain or bonderized. Will not flake or peel under the most severe forming or drawing operations. Sizes from .010 to .062. Available in coils or cut lengths. All tempers. FAIR Used on interior parts not subject to weathering or excessive moisture. GALVANNEALED ELECTRO GALVANIZED SHEET LONG TERNE STEEL SHEET GOOD Paint usually not required. Bright Reflow or Dull Matte Finish . EXCELLENT Because of bright, shiny surface used in manufacture of toys, kitchen utensils, etc. STEEL 1/4 lb., 1/2 lb., 3/4 lb. and 1 lb. coated. Soft and Deep draw quality – also Aluminum killed, 1/4 hard and 1/2 hard in many gages. Size Range .005 to .035 up to 37” wide. ELECTROLYTIC TIN COATED STEEL GOOD Particularly in matte finish, accepts paint well. Bright finish can be color coated with Gold or Brass to simulate plated finish. Paintability Forming Qualities Solderability Corrosion Resistance 403892_Precision_tech_manual_d7.qxd:pg 1 Page 37 37 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 38 PRECISION BRAND ELECTRO GALVANIZED SHEET SLIT COILS OR FLAT SHEETS ® PRIME COMMERCIAL QUALITY Meets all ASTM Standards All Tempers Available DEEP DRAW 1/4 HARD 1/2 HARD FULL HARD This is a Standard Commercial Quality Electro Galvanized Steel Sheet which has been electrolytically zinc coated in coils by modern methods. Its zinc coating is so completely bonded to the base metal that it will not flake or peel under the most severe forming or drawing operations. It is available with a plain commercial finish where further processing is not required or bonderized for enameled, lacquered or painted parts. This listing represents substantial on hand tonnages available for immediate coil slitting to your widths for press feeding or for processing to your exact blank sizes or multiples. COILS – CUT LENGTHS – FLAT SHEETS Bonderized or Plain Thickness Dec. Inches Equiv. MM .010 .012 .013 .014 .015 .018 .020 .025 .028 .030 .032 .035 .042 .048 .050 .060 .062 .065 .074 38 .2540 .3048 .3302 .3556 .3810 .4572 .5080 .6350 .7112 .7620 .8128 .8890 1.0668 1.2192 1.2700 1.5240 1.5748 1.6510 1.8796 Max. Width Inches Lbs. Per Sq. Ft. 36 36 36 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 0.4080 0.4896 0.5304 0.5712 0.6120 0.7344 0.8160 1.0200 1.1424 1.2240 1.3056 1.4280 1.7136 1.9584 2.0400 2.4480 2.5296 2.6520 3.0192 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Tab Spring Steels Page 39 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Tab Spring Steels Page 40 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 41 PRECISION STEEL® SPRING STEEL INDEX Many of these gauges, hardnesses and grades are also available in our Charlotte Service Center. Suggested Heat Treatments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 50 Carbon C.R. Annealed Spring Steel Strip . . . . . . . . . . . . . . . . . . . . . . . 43 74 Carbon C.R. Annealed Spring Steel Strip . . . . . . . . . . . . . . . . . . . . . . . 44 95 Carbon C.R. Annealed Spring Steel Strip . . . . . . . . . . . . . . . . . . . . . . . 45 Special Temper High Carbon Spring Steel Strip . . . . . . . . . . . . . . . . . . . . 46 AISI-SAE 4130 Heat-Treatable Alloy Strip . . . . . . . . . . . . . . . . . . . . . . . . . 47 1074/1075 Tempered Scaleless Spring Steel Strip . . . . . . . . . . . . . . . . . . 48 TOLERANCE TABLES C.R. Carbon Spring Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126-128 TO CONVERT POUNDS TO KILOGRAMS multiply by .4536 (pounds x .4536 = kg.) TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. x 2.2046 = pounds) 41 42 “ “ “ “ “ “ “ 400o F. 600o F. 700o F. 800o F. 900o F. 1000o F. 1100o F. 1200o F. Rc Rc Rc Rc Rc Rc Rc 52 45 39 35 31 27 22 250,000 210,000 180,000 160,000 139,000 124,000 112,000 Rc Rc Rc Rc Rc Rc Rc Rc 57 50 46 42 39 35 28 22 295,000 240,000 215,000 190,000 180,000 160,000 125,000 112,000 Rc Rc Rc Rc Rc Rc Rc Rc 59 53 47 44 40 36 32 26 Rockwell 305,000 255,000 230,000 205,000 182,000 162,000 140,000 122,000 Tensile PSI Rc Rc Rc Rc Rc Rc Rc Rc 62 55 49 45 41 38 34 30 Rockwell 320,000 270,000 238,000 212,000 189,000 176,000 155,000 138,000 Tensile PSI Rc 66 1440O – 1475O F. 1400O – 1500O F. 1550O – 1650O F. AISI - 1095 - SAE 10/17/08 12:34 PM *The proper drawing range and time cycles should be determined by experiment calculated to develop those properties best suited for intended end usage. SPECIAL NOTE – These temperature ranges and their resultant values are given as information only and not to be followed without experimentation. However, as these steels are held to close uniformity tolerances little difficulty should be experienced. “ “ “ “ “ “ “ *Drawing Temp. Tensile PSI Rc 64 Rc 62 Rc 58 Rockwell 1475O – 1550O F. 1475O – 1550O F. 1500O – 1550O F. Hardening Temperature Tensile PSI 1400O – 1500O F. 1400O – 1500O F. 1400O – 1500O F. Annealing Temperature Rockwell 1550O – 1650O F. 1550O – 1650O F. 1550O – 1650O F. Normalizing Temperature As Oil Quenched AISI - 1074 - SAE AISI - 1065 - SAE AISI - 1050 - SAE Formed Springs Requiring Heat Treatment FOR HEAT TREATABLE GRADES OF HIGH CARBON STRIP STEELS SUGGESTED HEAT TREATMENTS 403892_Precision_tech_manual_d7.qxd:pg 1 Page 42 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 43 PRECISION BRAND COLD ROLLED ANNEALED SPRING STEEL “50 CARBON” ® AISI 1050 ASTM A 684 Soft Annealed Spheroidized Structure Analysis C .48/.55 MN .60/.90 P .030 Max. S .035 Max. FIFTY CARBON, COLD ROLLED ANNEALED STRIP STEEL – A quality product manufactured expressly for us to rigid quality standards for the purpose of greatest uniformity with Rockwell held to the medium or low side of range. It can be easily formed, blanked, shaped or slightly drawn, heat treated, hardened and tempered. Used for flat springs, coiled springs, spring latches, prong lock washers, etc. We Can Slit – Roller Level – Cut To Length – or Round Edge by Filing or Edge Rolling ROCKWELL Approx. B84 Max. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .010 .012 .013 .014 .2540 .3048 .3302 .3556 2315⁄16 2315⁄16 2315⁄16 2315⁄16 .4080 .4896 .5304 .5712 .048 .050 .058 .060 1.2192 1.2700 1.4732 1.5240 48 48 48 48 1.9582 2.0400 2.3644 2.4480 .015 .016 .017 .018 .020 .3810 .4064 .4318 .4572 .5080 48 48 48 48 48 .6120 .6528 .6935 .7344 .8160 .062 .065 .072 .074 .078 1.5748 1.6510 1.8288 1.8796 1.9812 48 48 48 48 48 2.5296 2.6517 2.9376 3.0192 3.1824 .022 .025 .028 .030 .032 .5588 .6350 .7112 .7620 .8128 48 48 48 48 48 .8976 1.0200 1.1424 1.2240 1.3056 .083 .090 .093 .109 .125 2.1082 2.2860 2.3622 2.7686 3.1750 48 48 48 48 48 3.3860 3.6720 3.7944 4.4467 5.1000 .035 .040 .042 .8890 1.0160 1.0668 48 48 48 1.4280 1.6320 1.7136 .134 .156 .187 3.4036 3.9624 4.7498 48 48 48 5.4666 6.3641 7.6287 To Estimate Steel Weights Wt. per blank (T x W x L) .2833 Coil Weights per inch of width (OD2 – ID2) .2223 Wt. per lin. ft. (T x W) 3.4 Suggested Rockwell Tests • B Scale for .040 and Thicker • 30T Scale for .025 to .039 • 15T Scale for .024 to .010. All sizes available in coil or cut length. 43 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 44 PRECISION BRAND COLD ROLLED ANNEALED SPRING STEEL “74 CARBON” ® AISI 1074, ASTM A 684 Soft Annealed Spheroidized Structure Analysis C .70/.80 MN .50/.80 P .030 Max. S .035 Max. SEVENTY-FOUR CARBON, COLD ROLLED ANNEALED STRIP STEEL is an excellent choice for an all purpose Spring Steel Strip. It is of fine grain structure, has been completely spheroidized with Rockwell held to the medium or low side of range. Can be easily formed and heat treated – substantial tonnages stocked in an unusually wide thickness range available for immediate processing to widths as required. Manufactured expressly for us to highest quality standards. We Can Slit – Roller Level – Cut to Length – or Round Edge by Filing or Edge Rolling ROCKWELL Approx. B86 Max. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .008* .010 .012 .013 .014 .2032 .2540 .3048 .3302 .3556 23 23 23 23 23 .015 .016 .018 .020 .022 .3810 .4064 .4572 .5080 .5588 48 48 48 48 48 .6120 .6528 .7344 .8160 .8976 .025 .028 .030 .031 .032 .6350 .7112 .7620 .7874 .8128 48 48 48 48 48 1.0200 1.1424 1.2240 1.2648 1.3056 .035 .040 .042 .8890 1.0160 1.0668 48 48 48 1.4280 1.6320 1.7136 15⁄16 15⁄16 15⁄16 15⁄16 15⁄16 .3264 .4080 .4896 .5304 .5712 Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .045 .048 .050 .058 .060 .062 .065 .072 .075 .077 .078 1.1430 1.2192 1.2700 1.4732 1.5240 1.5748 1.6510 1.8288 1.9050 1.9558 1.9812 48 48 48 48 48 48 48 48 48 48 48 1.8360 1.9584 2.0400 2.3644 2.4480 2.5296 2.6520 2.9376 3.0600 3.1412 3.1824 .083 .093 .094 .095 .109 2.1082 2.3622 2.3876 2.4130 2.7686 48 48 48 48 48 3.3864 3.7944 3.8361 3.8760 4.4472 .125 .134 .156 .187 3.1750 3.4036 3.9624 4.7498 48 48 48 48 5.1000 5.4672 6.3648 7.6296 Suggested Rockwell Tests • B Scale for .040 and Thicker • 30T Scale for .025 to .039 • 15T Scale for .024 to .010. *Coils only. All other sizes available in coil or cut lengths. ORDER FROM THE HOUSE THAT CATERS TO THE SPRING TRADE 44 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 45 PRECISION BRAND COLD ROLLED ANNEALED SPRING STEEL “95 CARBON” ® AISI 1095, ASTM A 684 Soft Annealed Spheroidized Structure Analysis C .90/1.03 MN .30/.50 P .030 Max. S .035 Max. NINETY-FIVE CARBON, COLD ROLLED ANNEALED STRIP STEEL is the very finest of commercial quality (standard grade) High Carbon Spring Steel Strip available. It has been manufactured expressly for us to rigid quality standards for the purpose of greatest uniformity. It is of fine grain structure, has been completely spheroidized with Rockwell held to the medium or low side of range. Can be easily formed, blanked or shaped, heat treated, hardened and tempered. Intended for springs or other applications such as mechanical springs, computer parts, saw blades, scrappers, etc. – Large tonnages stocked in all sizes. ROCKWELL Approx. B88 Max. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .008* .010 .012 .015 .016 .2032 .2540 .3048 .3810 .4064 23 15⁄16 23 15⁄16 23 15⁄16 23 15⁄16 23 15⁄16 .3264 .4080 .4896 .6120 .6523 .040 .042 .050 .058 .062 1.0160 1.0668 1.2700 1.4732 1.5748 23 15⁄16 23 15⁄16 23 15⁄16 23 15⁄16 23 15⁄16 1.6320 1.7136 2.0400 2.3664 .018 .020 .022 .025 .028 .4572 .5080 .5588 .6350 .7112 23 15⁄16 23 15⁄16 23 15⁄16 23 15⁄16 23 15⁄16 .7344 .8160 .8976 1.0200 1.1424 .065 .072 .093 .109 .125 1.6510 1.8288 2.3622 2.7686 3.1750 23 15⁄16 23 15⁄16 23 15⁄16 23 15⁄16 23 15⁄16 2.6520 2.9376 3.7944 4.4472 5.1000 .030 .032 .035 .7620 .8128 .8890 23 15⁄16 23 15⁄16 23 15⁄16 1.2240 1.3056 1.4280 Suggested Rockwell Tests • B Scale for .040 and Thicker • 30T Scale for .025 to .039 • 15T Scale for .024 to .010. *Coils only. All other sizes available in coil or cut lengths. 45 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 46 PRECISION BRAND® SPRING STEEL STRIP SPECIAL TEMPER High Carbon AISI 1075 Analysis C MN P S .68/.90 .60/.90 .040 Max. .050 Max. With its Rockwell at approximately C40 and tensile strength at 200,000 PSI minimum this SPECIAL TEMPER SPRING STEEL STRIP has been produced to fill a need between Annealed and Tempered Spring Steel. It is lower in cost than Tempered, it does not require hardening after forming and can be used for flat spring clips and other parts where warpage in heat treatment is a problem. Stress relief is not recommended or required. The formability of this material is good for the Rockwell range, performance, and fatigue life compares very favorably with that of Black Oil Tempered Spring Steel of the same hardness. The flatness of this material does not compare with that of Tempered Spring Steel but may have a “coil set” similar to that found in Type 302 Full Hard Stainless. Sold only on approval of samples. ROCKWELL Approx. C40 Min. Also available C37 – 40 and C33 – 37 Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .010 .012 .015 .018 .2540 .3048 .3810 .4572 24 24 24 24 .4080 .4896 .6120 .7344 .020 .025 .031 .035 .5080 .6350 .7874 .8890 24 24 24 24 .8160 1.0200 1.2648 1.4280 .042 .050 .062 1.0668 1.2700 1.5748 24 24 24 1.7136 2.0400 2.5296 We would be happy to supply this same quality direct from Mill – Minimum quanities 6,000 to 10,000 lbs. Suggested Rockwell Tests • C Scale for .025 and thicker • 30N Scale for .015 to .024 • 15N Scale for .007 to 014. Note – Most Gauges carried in C40 Min. Hardness. 46 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 47 PRECISION BRAND® SPHEROIDIZED-SOFT 4130 ALLOY STRIP AISI SAE 4130 AIRCRAFT QUALITY AMS Spec. 6350 and 6351 Cond. A Analysis C .28/.33 Si .20/.35 Mn .40/.60 Cr .80/1.10 P .025 Max. Mo .15/.25 S .025 Max. COILS or LENGTHS This HEAT-TREATABLE LOW ALLOY C.R. STRIP STEEL is available from warehouse and mill. It is rolled to close tolerances and in widths of 20” to 24”. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .025 .031 .042 .050 .6350 .7874 1.0668 1.2700 24 24 24 24 1.0200 1.2648 1.7136 2.0400 .058 .062 .074 .078 .093 1.4732 1.5748 1.8796 1.9812 2.3622 24 24 24 24 24 2.3664 2.5296 3.0192 3.1824 3.7944 Note-We will be glad to stock this Type 4130 in other thicknesses and other tempers depending on usage. Suggested Rockwell Tests • B Scale for .040 and Thicker • 30T Scale for .039 to .025 • 15T Scale for .024 to .015. For Quality Spring Steel Strip Insist on Precision Brand ® Products 47 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 48 PRECISION BRAND® SPRING STEEL STRIP 1074-1075 TEMPERED SCALELESS SPRING STEEL STRIP CARBON – .70/.80 ROCKWELL – C44/47 COILS or LENGTHS TOPS IN ITS CLASS. This Tempered Spring Steel Strip looks and acts much like Blue Tempered. The difference being that Scaleless Tempered is of medium high carbon, has been tempered and has better forming qualities. With a Rockwell of C44 to C47 it finds a strong demand from the makers of mechanical springs and where the full quality of Blue Tempered at .90 to 1.03 carbon and a polished surface is not needed. Used for snap springs, lock springs, hold down springs, trap springs and countless other applications. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Scaleless Tempered is available in widths from .187 up to 12.375 with a standard mill rolled edge, filed edge or a slit edge. Standard gauges available .008 up to .062 in stock with the occasional exception of those items "not in demand" but promptly available from the mill. Your inquiries are welcome 48 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Tab Stainless Steel Page 49 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Tab Stainless Steel Page 50 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 51 PRECISION STEEL® STAINLESS STEEL INDEX Many of these gauges, hardnesses and grades are also available in our Charlotte Service Center. CHEMICAL COMPOSITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 TYPE 301 1/4 Hard, 1/2 Hard, 3/4 Hard . . . . . . . . . . . . . . . . . . . . . . . . . 53-55 TYPE 301 Full Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 TYPE 301 Extra Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 TYPE 302 Annealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 TYPE 302 1/4 Hard, 1/2 Hard, 3/4 Hard . . . . . . . . . . . . . . . . . . . . . . . . . 59-61 TYPE 302 Full Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 TYPE 304 Annealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 TYPE 305 Annealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 TYPE 316 Annealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 TYPE 321 Annealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 17/7-PH Conditions A and C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67-68 TYPE 410 Annealed, Pre-Tempered . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69-70 TYPE 420 Annealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 TYPE 430 Annealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 TOLERANCE TABLES Stainless and Heat Resisting Cold Rolled Strip Steels . . . . . . . . . . . 132-133 TO CONVERT POUNDS TO KILOGRAMS multiply by .4536 (pounds x .4536 = kg.) TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. x 2.2046 = pounds) 51 52 19500F 21500F 18500F 20000F 18500F 20000F B88 Max. 14000F 15000F B88 Max. 22% Min. 35,000 Min. 30,000 Min. 65,000 Min. 1 % Min. 20% Min. 175,000 Min. 200,000 Min. 15000F 16500F C40-45 180,000 Approx. 200,000 Approx. Annealed Tempered B-92 Max. C-41 Min. B95 Max 20% Min. 55,000 Max. 150,000 Max. Cond.C For Stainless Type Descriptions and their respective characteristics refer to “TYPE CHARACTERISTICS” this section. NOTE - Is temper a problem? We cannot tell you what temper of Stainless to use. This will depend on the degree of forming or the nature of drawing required to do the job at hand. If you do have a problem, however, call on us. Our representative will be happy to help you select the proper material for your needs. Solution Annealing. Cool Rapidly from Deg. F. Tensile Test only 40% Min. 30,000 Min. 65,000 Min. 75,000 Min. Cond. A 11.50/13.50 0.030 0.040 1.00 1.00 0.15 Type 410 12:34 PM 19250F 20750F B87 Max. C40/45 B87 Max. Rockwell (Approx.) 40% Min. 2% Min. 40% Min. 40% Min. Elongation in 2” % 30,000 Min. Annealed Annealed 0.75/1.50 6.50/7.75 16.00/18.00 0.030 0.040 1.00 1.00 0.09 17-7PH Aero. MtI. Spec. 10/17/08 8% Min. 140,000 Min. 30,000 Min. 140,000 Min. 30,000 Min. 75,000 Min. Yield Strength Offset: 0.2% PSI. 170,000 Min. 75,000 Min. 185,000 Min. Tensile Strength PSI Annealed 75,000 Min. Full Hard Full Hard Annealed MECHANICAL PROPERTIES Annealed 10.50/13.00 8.00/10.50 8.00/10.00 6.00/8.00 Ni AL 0.030 16.00/18.00 0.030 17.00/19.00 0.030 0.040 .040 .040 0.045 18.00/20.00 0.030 S-Max. 1.00 .750 .750 .750 0.030 .040 P-Max. 1.00 2.00 2.00 2.00 17.00/19.00 .750 Si-Max. 0.12 0.12 0.08 0.15 16.00/18.00 2.00 Type 430 Type 305 Type 304 Type 302 CR 0.15 Mn-Max. Type 301 C-Max. CHEMICAL COMPOSITION STAINLESS TYPES-CHEMICAL COMPOSITIONS AND TYPICAL MECHANICAL PROPERTIES 403892_Precision_tech_manual_d7.qxd:pg 1 Page 52 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:34 PM Page 53 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 301 • 1/4 HARD AISI 301 ASTM A 666 AMS 5517 Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 16.00/18.00 Si .750 Max. Ni 6.00/8.00 P .040 Max. QUARTER HARD COLD ROLLED TYPE 301 – (chrome-nickel) Stainless Steel Strip. This is one of the group of five different tempers stocked by us in this alloy. This quarter hard temper is used in many ways for light drawing, stretching and forming operations where heat and corrosion resistant properties are required. It possesses greater ductility and elongation than its counterparts Types 302 and 304 but work hardens much more rapidly. At 1/4 Hard, Type 301 develops a tensile strength of 125,000 PSI minimum, a minimum yield strength of 75,000 PSI and elongation in 2 inches of 25% minimum. Some Gauges Available Up To 48 Wide Thickness Max. Width Dec. Inches Equiv. MM Inches .004 .008 .010 .012 .015 .018 .020 .022 .025 .028 .1016 .2032 .2540 .3048 .3810 .4572 .5080 .5588 .6350 24 24 24 24 24 24 24 24 24 Lbs. Per Sq. Ft. .1670 .3340 .4176 .5011 .6264 .7517 .8352 .9187 1.0440 Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .031 .035 .042 .050 .060 .062 .078 .109 .125 To Estimate Type 301 Weights-Weight per Blank (T x W x L) .29 Factor-Steel Weight x 1.024-Weight per Lin. Ft. (T x W) 3.48 This temper is not specified to Rockwell hardness-but to tensile strength and elongation. TYPE 301 CHARACTERISTICS TYPE 301 – (chrome-nickel) Austenitic. The chemistry of this alloy permits cold working to the ideal combination of mechanical properties desired for springs. To illustrate; in the Full Hard condition, it will maintain a minimum of 9% elongation in 2” as compared with Type 302 Full Hard at 2% approximately. This retained elongation on the part of 301 accounts for its great hardness, toughness and superior fatigue life in the finished part. In addition, it possesses a high strengthto-weight ratio. Type 301 work hardens excessively – For this reason its general demand is in the harder tempers. It is not heat-treatable for hardening purposes, is non-magnetic as annealed but slightly magnetic following cold working. Type 301 possesses good heat and corrosion resistance and welds easily. To solution anneal, cool rapidly in air or water from about 20000 F. 53 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 54 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 301 • 1/2 HARD AISI 301 ASTM A 666 AMS 5518 Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 16.00/18.00 Si .750 Max. Ni 6.00/8.00 P .040 Max. HALF HARD COLD ROLLED – This Type 301 – (chrome-nickel) Stainless Strip has been produced to meet a need for an in-between forming Quality Strip within a hardness range calling for minimum tensile and yield strengths at 150,000 PSI and 110,000 PSI respectively with elongation in 2 inches at 15-18%. Its ductility and elongation are superior to Types 302 and 304, but it work hardens much more rapidly. Some Gauges Available Up To 48 Wide Thickness Dec. Inches Equiv. MM .004* .005* .008* .010 .012 .0135 .015 .018 .020 .023 .025 .028 .031 .035 .038 .042 .048 .050 .0585 .062 .1016 .1270 .2032 .2540 .3048 .3449 .3810 .4572 .5080 .5842 .6350 .7112 .7874 .8890 .9652 1.0668 1.2192 1.2700 1.4859 1.5748 Max. Width Inches 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 Lbs. Per Sq. Ft. .1670 .2088 .3342 .4176 .5011 .5638 .6264 .7517 .8352 .9605 1.0440 1.1693 1.2946 1.4616 1.5869 1.7539 2.0045 2.0880 2.4430 2.5891 To Estimate Type 301 Weights - Weight per Blank (T x W x L) .29 Factor-Steel Weight x 1.024 - Weight per Lin. Ft. (T x W) 3.48 This temper is not specified to Rockwell Hardness – but to tensile strength and elongation. *Coils only. All other sizes available in coil or cut lengths. 54 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 55 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 301 • 3/4 HARD AISI 301 ASTM A 666 AMS 5902 Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 16.00/18.00 Si .750 Max. Ni 6.00/8.00 P .040 Max. THREE QUARTER HARD COLD ROLLED – This temper in Type 301 (chromenickel) Stainless Strip differs from our other Type 301 stainless strip steels only to the degree to which it has been hard cold rolled to its 3/4 hard condition. Its minimum tensile and minimum yield strengths are cataloged at 175,000 PSI and 135,000 PSI respectively with elongation in 2 inches at 10 – 12%. Like all Type 301 Stainless Steels it possesses great hardness and toughness. Although it work hardens much more rapidly than the other Austenitic Stainless Steels, this very property makes it altogether suitable for many applications. Some Gauges Available Up To 48 Wide Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .010 .012 .015 .016 .2540 .3048 .3810 .4064 24 24 24 24 .4176 .5011 .6264 .6682 .020 .025 .030 .032 .5080 .6350 .7620 .8128 24 24 24 24 .8352 1.0440 1.2528 1.3363 .036 .044 .062 .9144 1.1176 1.5748 24 24 24 1.5034 1.8374 2.5891 Weight Factor - Steel Weight x 1.024 To Estimate Type 301 Weights-Weight per blank (T x W x L) .29 Weight per blank (T x W) 3.48 This temper is not specified to Rockwell hardness – but to tensile strength and elongation. 55 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 56 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 301 • FULL HARD AlSl 301 ASTM A 666 AMS 5519 Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 16.00/18.00 Si .750 Max. Ni 6.00/8.00 P .040 Max. FULL HARD COLD ROLLED – Type 301 – (chrome-nickel) Stainless Steel permits cold working to the ideal combination of mechanical properties desired for springs. Its unique combination of hardness and toughness makes for better forming quality in this Full Hard Temper plus increased fatigue life in the finished spring. In this temper, it develops an approximate minimum tensile strength of 185,000 PSI and 140,000 PSI yield strength with elongation in 2 inches at 8% to 9% minimum. Some Gauges Available Up To 48 Wide Thickness Dec. Inches Equiv. MM .005* .0055 .006* .007* .0075 .008* .010 .012 .013 .015 .016 .018 .020 .022 .025 .028 .031 .035 .042 .050 .062 .1270 .1397 .1524 .1778 .1905 .2032 .2540 .3048 .3302 .3810 .4064 .4572 .5080 .5588 .6350 .7112 .7874 .8890 1.0668 1.2700 1.5748 Max. Width Inches 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 Lbs. Per Sq. Ft. .2088 .2297 .2506 .2923 .3132 .3342 .4176 .5011 .5429 .6264 .6682 .7517 .8352 .9187 1.0440 1.1693 1.2946 1.4616 1.7539 2.0880 2.5891 To Estimate Type 301 Weights – Weight per Blank (T x W x L) .29 Factor-Steel Weight x 1.024 – Weight per Lin. Ft. (T X W) 3.48 This temper is not specifed to Rockwell hardness-but to tensile strength and elongation. 56 *Coils only. All other sizes available In coil or cut lengths. 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 57 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 301 • EXTRA HARD AlSl 301 Chemistry Only Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 16.00/18.00 Si .750 Max. Ni 6.00/8.00 P .040 Max. EXTRA HARD COLD ROLLED – Type 301 – (chrome-nickel) Stainless Steel Strip has been stocked to meet the demand for exceptionally high strength and where a high strength-to-weight ratio is desired and good corrosion and heat resistance are necessary. Type 301 excels Type 302 in its high strength due to its lower nickel content causing it to work harden more rapidly. Its principal use is for mechanical springs and parts where exceptional hardness and toughness are required. COMPLETE FACILITIES For Slitting – Length Cutting – Blanking ROCKWELL C45/50 - Tensile 200,000 PSI Min. Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .008* .010 .012 .015 .2032 .2540 .3048 .3810 24 24 24 24 .3342 .4176 .5011 .6264 .018 .020 .025 .031 .4572 .5080 .6350 .7874 24 24 24 24 .7517 .8352 1.0440 1.2946 To Estimate Type 301 Weights-Weight per Blank (T x W x L) .29 Factor-Steel Weight x 1.024-Weight per Lin. Ft. (T x W) 3.48 Use Rockwell Hardness Tests for this Temper. *Coils only. All other sizes available in coil or cut lengths. 57 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 58 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 302 • SOFT ANNEALED AND SKIN PASSED AlSl 302 ASTM A 240 ASTM A 666 AMS 5516 Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 17.00/19.00 Si .750 Max. Ni 8.00/10.00 P .040 Max. SOFT and DUCTILE – Type 302 (18/8 chrome-nickel) Stainless Steel Strip. This is the BASIC and most widely used of all the Chrome-Nickel steels. It is recognized as the best all purpose drawing and forming quality type in this stainless group with mechanical and forming qualities intermediate to Types 301 and 304. Type 302 offers the benefits and avoids the shortcomings of both of these types. Note – Deep Drawing and Extra Deep Drawing qualities are available but only as negotiated to meet special requirements. Type 302 applications are wide and various including formed products, drawn parts, flexible metal hose, household appliances, certain spinning operations, tubing and countless other stainless fabricated parts. ROCKWELL B87 MAX. Thickness Max. Width Dec. Inches Equiv. MM Inches .005* .006* .007* .008* .010 .012 .015 .018 .020 .024 .025 .028 .031 .032 .035 .037 .1270 .1524 .1778 .2032 .2540 .3048 .3810 .4572 .5080 .6096 .6350 .7112 .7874 .8128 .8890 .9398 24 24 24 24 24 24 48 48 48 48 48 48 48 48 48 48 Lbs. Per Sq. Ft. .2088 .2506 .2923 .3342 .4176 .5011 .6264 .7517 .8352 1.0022 1.0440 1.1693 1.2946 1.3363 1.4616 1.5451 Thickness Max. Width Dec. Inches Equiv. MM Inches .040 .042 .048 .049 .050 .058 .060 .062 .065 .075 .078 .090 .094 .100 .105 .125 1.0160 1.0668 1.2192 1.2446 1.2700 1.4732 1.5240 1.5748 1.6510 1.9050 1.9812 2.2860 2.3876 2.5400 2.6670 3.1750 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 Lbs. Per Sq. Ft. 1.6704 1.7539 2.0045 2.0462 2.0880 2.4221 2.5056 2.5891 2.7144 3.1320 3.2573 3.7584 3.9254 4.1760 4.3848 5.2200 To Estimate Type 302 Weights-Weight per Blank T x W x L) .29 Factor – Steel Weight x 1.024 – Weight per Lin. Ft. (T x W) 3.48 Rockwell values for Nickel Bearing Stainless are not altogether reliable and only approximate. * Coils only. All other sizes available in coil or cut lengths. TYPE 302 CHARACTERISTICS TYPE 302 (18/8 chrome-nickel) Austenitic. This type differs but little from its companion Alloy Type 301. However, the slight increase in Chromium and Nickel contents in Type 302 over 301 develops marked changes in its mechanical properties and in its forming behavior. Type 302 work hardens much less rapidly than does Type 301 but with strength and toughness second only to 301. It possesses excellent heat and corrosion resistance and welds easily. To solution anneal, cool rapidly in air or water from about 20000 F. It is not heat treatable for hardening purposes and is slightly magnetic following cold working. We stock Type 302 in five different tempers – Soft to Full Hard inclusive. Note – We do not guarantee mechanical properties on Type 302 tempers. We do for Type 301. 58 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:49 PM Page 59 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 302 • 1/4 HARD AlSl 302 Chemistry Only AMS 5903 Chemistry Only Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 17.00/19.00 Si .750 Max. Ni 8.00/10.00 P .040 Max. QUARTER HARD COLD ROLLED TYPE 302 (18/8 chrome-nickel) Stainless Steel Strip. At C25 – 30 this quarter hard temper differs from Soft Temper Type 302 Stainless Strip Steel ONLY in its hardness. This added hardness or stiffness makes it possible to use in place of somewhat thicker material in numerous applications. It can be stamped, blanked, formed and lightly drawn. It does not work harden as quickly as Type 301. Note – We do not guarantee mechanical properties for Type 302 in Tempers. We do for Type 301. ROCKWELL C25/30 APPROX. Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .010 .012 .015 .018 .020 .2540 .3048 .3810 .4572 .5080 24 24 24 24 24 .4176 .5011 .6264 .7517 .8352 .025 .031 .045 .048 .062 .6350 .7874 1.1430 1.2192 1.5748 24 24 24 24 24 1.0440 1.2946 1.8792 2.0045 2.5891 Slit Coils or Cut to Lengths To estimate Type 302 weights – weight per blank (T x W x L) .29 weight per Lin. Ft. (T x W) 3.48 Rockwell values for Nickel Bearing Stainless are not altogether reliable and only approximate. 59 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 60 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 302 • 1/2 HARD AlSl 302 Chemistry Only AMS 5904 Chemistry Only Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 17.00/19.00 Si .750 Max. Ni 8.00/10.00 P .040 Max. HALF HARD Cold Rolled Type 302 (18/8 chrome-nickel) Stainless Steel Strip. This temper has been accurately cold rolled to its half hard condition (Rockwell – approx. C30-35) ready for stamping, blanking or forming. Its higher nickel content causes it to work harden less rapidly than Type 301 and its higher percentage of chromium makes for greater corrosion and heat resistance. (Note – The AISI Stainless Manual does not show tensile, yield or elongation for this temper.) We stock the Half Hard temper in both Type 302 and Type 301. Your choice will depend on the nature of the job at hand and its specifications. ROCKWEILL C30/35 APPROX. Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .006* .008* .010 .012 .015 .1524 .2032 .2540 .3048 .3810 24 24 24 24 24 .2506 .3342 .4176 .5011 .6264 .018 .020 .025 .031 .4572 .5080 .6350 .7874 24 24 24 24 .7517 .8352 1.0440 1.2946 To estimate Type 302 weights-weight per blank (T x W x L) .29 weight per Lin. Ft. (T x W) 3.48 Rockwell values for Nickel Bearing Stainless are not altogether reliable and only approximate. * Coils only. All other sizes available in coil or cut lengths. 60 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 61 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 302 • 3/4 HARD AlSl 302 Chemistry Only AMS 5905 Chemistry Only Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 17.00/19.00 Si .750 Max. Ni 8.00/10.00 P .040 Max. THREE QUARTER HARD Cold Rolled Type 302 (18/8 chrome-nickel) Stainless Steel Strip at C-35/40. Due to demand this temper is stocked alongside of its 3/4 Hard counterpart in Type 301. Both have their place in the Austenitic family of hard rolled tempers. The 302 is characterized as possessing somewhat less hardness, toughness, elongation and spring back but easier to form. Also Type 302 possesses greater heat and corrosion resistance. Your choice will depend on the degree of forming required to do the job at hand or to the specifications. If you have temper problems, we invite your inquiries. We will be happy to help you select the proper material for your needs. Note – The AISI Stainless Manual does not show tensile, yield or elongation for Type 302. ROCKWELL C35/40 APPROX. Thickness Dec. Inches Equiv. MM .015 .020 .025 .031 .3810 .5080 .6350 .7874 Max. Width Inches Lbs. Per Sq. Ft. 24 24 24 24 .6264 .8352 1.0440 1.2946 Complete Facilities For Slitting – Shearing Length Cutting – Blanking and Deburring To estimate Type 302 weights-weight per blank (T x W x L) .29 weight per Lin. Ft. (T x W) 3.48 Rockwell values for Nickel Bearing Stainless are not altogether reliable and only approximate. 61 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:49 PM Page 62 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 302 • FULL HARD AlSl 302 Chemistry Only AMS 5906 Chemistry Only Analysis C .15 Max. S .030 Max. Mn 2.00 Max. Cr 17.00/19.00 Si .750 Max. Ni 8.00/10.00 P .040 Max. FULL HARD COLD ROLLED – Type 302 (18/8 chrome-nickel) Stainless Steel Strip at C-40/45. Note –The AISI Stainless Manual does not show tensile, yield or elongation for Type 302. This is the most often used temper in the Type 302 grade. Wide application for spring clips, washers, retainers, etc. We stock a full range of sizes in this temper. COMPLETE FACILITIES for Slitting – Shearing – Length Cutting – Blanking and Deburring ROCKWELL C40/45 APPROX. Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .002* .003* .004* .005* .006* .0508 .0762 .1016 .1270 .1524 24 24 24 24 24 .0835 .1253 .1670 .2088 .2506 .007* .008* .009* .010 .012 .1778 .2032 .2286 .2540 .3048 24 24 24 24 24 .2923 .3342 .3758 .4176 .5011 .015 .018 .020 .025 .031 .3810 .4572 .5080 .6350 .7874 24 24 24 24 24 .6264 .7517 .8352 1.0440 1.2946 To estimate weights – weight per blank (T x W x L) .29 weight per Lin. Ft. (T x W) 3.48 Rockwell values for Nickel Bearing Stainless are not altogether reliable and only approximate. *Coils only. All other sizes available in coil or cut lengths. 62 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:49 PM Page 63 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 304 • SOFT ANNEALED SKIN PASSED AlSl 304 ASTM A 240/666 AMS 5513 Analysis C .08 Max. S .030 Max. Mn 2.00 Max. Cr 18.00/20.00 Si .750 Max. Ni 8.00/10.50 P .040 Max. SOFT and DUCTILE – This type 304 (18/8 chrome-nickel) Stainless Steel Strip differs from Type 302 only in its low carbon content and in its slight increase in the chrome and nickel percentages. It has a high degree of ductility, excellent drawing, forming and spinning properties. Type 304 is used extensively in the chemical, refrigeration, paper and food processing industries. Also for bellows, flexible metal hose, spinning, tubing and numerous other stainless applications. Like Type 302, Type 304 finds its larger demand in the soft tempers. In its annealed condition the tensile strength is listed at approximately 75,000 PSI minimum and its yield strength at approximately 30,000 PSI minimum with approximate elongation in 2 inches at 40% ROCKWELL B87 MAX. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .005* .006* .007* .008* .010 .012 .015 .018 .020 .022 .025 .028 .031 .032 .035 .2088 .2506 .2923 .3342 .4176 .5011 .6264 .7517 .8352 .9187 1.0440 1.1693 1.2946 1.3363 1.4616 .1270 .1524 .1778 .2032 .2540 .3048 .3810 .4572 .5080 .5588 .6350 .7112 .7874 .8128 .8890 24 24 24 24 24 24 48 48 48 48 48 48 48 48 48 Thickness Max. Width Dec. Inches Equiv. MM Inches .037 .040 .042 .048 .049 .050 .058 .060 .062 .065 .078 .090 .093 .119 .125 .9398 1.0160 1.0668 1.2192 1.2446 1.2700 1.4732 1.5240 1.5748 1.6510 1.9812 2.2860 2.3622 3.0226 3.1750 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 Lbs. Per Sq. Ft. 1.5451 1.6704 1.7539 2.0045 2.0462 2.0880 2.4221 2.5056 2.5891 2.7144 3.2573 3.7584 3.8836 4.9694 5.2200 Weight Factor-Steel Weight x 1.024 To estimate Type 304 weights-weight per blank (T x W x L) .29 — weight per Lin. Ft. (T x W) 3.48 Rockwell values for Nickel Bearing Stainless are not altogether reliable and only approximate. *Coils only. All other sizes available in coil or cut lengths. TYPE 304 CHARACTERISTICS TYPE 304 (18/8 chrome-nickel) Austenitic Stainless Steel Strip. This is a companion grade to Types 301 and 302 and characterized by an especially low carbon content while its chromium and nickel are somewhat higher. Because of its lower carbon content Type 304 is not so prone to give trouble after welding, due to carbide precipitation and resultant corrosion. Type 304 possesses heat and corrosion resistant properties superior to Types 301 and 302. Its strength, work hardening and drawing qualities are slightly less than Type 302. Type 304 is not heat-treatable for hardening purposes. It is non-magnetic as annealed but slightly magnetic following cold working. To solution anneal, cool rapidly in air or water from about 18500 to 20500 F. 63 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 64 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 305 • SOFT ANNEALED AND SKIN PASSED AMS 5514 ASTM A 240 Analysis C .12 Max. S .030 Max. Mn 2.00 Max. Cr 17.00/19.00 Si .75 Max. Ni 10.50/13.00 P .030 Max. ROLLED TO RESTRICTED THICKNESS TOLERANCES BRIGHT ANNEALED – The bright cold rolled finish is retained by final annealing in a controlled atmosphere furnace. FOR DEEP DRAWING – Type 305 Stainless Strip Steel possesses the same excellent corrosion resistance as Type 302, but has a much lower rate of work hardening. It is well suited for cold forming operations in which this low rate of work hardening is desirable. Its yield, tensile strength, and hardness increase at rates which are exceptionally low. However, its initially good elongation falls off rapidly. Type 305 is widely used for the production of parts by free spinning and cold heading operations, and it is particularly suitable for severe cold drawing, especially where the part can be completely formed in two draws. In many instances, the intermediate anneal can be eliminated when Type 305 is used. In drawing, the metal should be allowed to slip freely through the hold-down pads, thus holding stretching to a minimum. Used widely for electronic parts and other drawn applications. ROCKWELL B88 MAX APPROX. COMPLETE FACILITIES for Slitting – Shearing – Leveling and Blanking Thickness Dec. Inches Equiv. MM .010 .012 .015 .018 .020 .025 .031 .062 .2540 .3048 .3810 .4572 .5080 .6350 .7874 1.5875 Max. Width Inches 24 24 24 24 24 24 24 24 Lbs. Per Sq. Ft. .4176 .5011 .6264 .7517 .8352 1.0440 1.2946 2.6100 Slit Coils or Cut Lengths Other sizes available on request. To estimate Type 305 weights – weight per blank (T x W x L) .29 – weight per Lin. Ft. (T x W) 3.48 Rockwell values for Nickel Bearing Stainless are not altogether reliable and only approximate. 64 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 65 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 316 • SOFT ANNEALED AND SKIN PASSED AMS 5524 ASTM A 240 Analysis C .08 Max. S .030 Max. Mn 2.00 Max. Si .750 Max. P .040 Max. Cr 16.00/18.00 Mo 2.00/3.00 Ni 10.00/14.00 Type 316 has better corrosion resistance to most chemicals, salts and acids and is more resistant to marine atmosphere because of an addition of 2.0 to 3.0% molybdenum. This addition improves the corrosion resistance of austenitic steels and imparts hot strength characteristics. Another valuable property of Type 316 is high creep strength at elevated temperatures. Fabrication characteristics of Type 316 are similar to Type 302 or 304. Type 316 has extensive use in chemical processing equipment when better corrosion resistance is required than is afforded by chromium-nickel steels. Also 316 is specified for use with high purity products where product contamination must be held to a minimum. Typical applications are Food Processing, Chemical Processing, Photographic, Pharmaceutical and Textile Finishing Equipment and Marine Exterior Trim. ROCKWELL B88 MAX Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .007 .010 .015 .018 .1778 .2540 .3810 .4572 24 24 24 24 .2923 .4176 .6264 .7517 .020 .025 .032 .037 .5080 .6350 .8128 .9398 24 24 24 24 .8352 1.0440 1.3363 1.5451 .048 .059 .065 .075 .093 1.2192 1.4986 1.6510 1.9050 2.3622 24 24 24 24 24 2.0045 2.4638 2.7144 3.1320 3.8836 65 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 66 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 321 • SOFT ANNEALED AND SKIN PASSED AMS 5510 ASTM A 240 Analysis C .08 Max. Ti .70 Max. Mn 2.00 Max. P .040 Max. Cr 17.00 /19.00 S .030 Max. Ni 9.00/12.00 Si .75 Max. Type 321 is similar to Type 304, however, it contains a Titanium addition of at least five times the carbon content. This addition is made to reduce or eliminate chromium carbide precipitation – resulting from welding or exposure to high temperatures. Maximum stabilization is accomplished by annealing between 17500 and 18500 F. Type 321 has extensive use in aircraft parts, such as exhaust systems where operating temperatures are higher than 8000 F. and where corrosive conditions are not too severe; also because of its resistance to scaling and vibration fatigue. Typical applications: Aircraft Exhaust Stacks and Manifolds, Chemical Processing Equipment, Welded Equipment, Jet Engine Parts, etc. ROCKWELL B-92 MAX. Thickness Dec. In. Equiv. MM .0075 .010 .015 .020 .025 .042 .050 66 .1905 .2540 .3810 .5080 .6350 1.0668 1.2700 Max. Width Inches Lbs. Per Sq. Ft. 24 24 24 24 24 24 24 .3132 .4176 .6264 .8352 1.0440 1.7539 2.0880 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 67 PRECISION BRAND® C.R. STAINLESS STEEL STRIP 17/7-PH CONDITION A No. 2 Dull Finish–Annealed Heat Treatable Analysis C .09 Max. S .030 Max. Mn 1.00 Max. Cr 16.00/18.00 Si 1.00 Max. Ni 6.50/7.75 P .040 Max. AL .75/1.50 17/7-PH Condition A (Annealed 17/7 Cr-Ni 1 % AL) Precipitation Hardenable Stainless Steel Strip. This alloy provides design and production advantages possessed by none of the standard stainless grades. Easily formed in its Condition A, it can be hardened to high strength levels by subsequent heat treatment. It work hardens rapidly and with forming behavior similar to Type 301. Type 17/7-PH was designed primarily for manufacture into parts requiring corrosion resistance and high strength up to 6000 F and where such parts may require welding during fabrication. Condition A has a tensile strength of 150,000 PSI maximum, a yield strength of 55,000 PSI maximum and elongation in 2 inches at 20% minimum. This Condition A conforms to SAE aeronautical material specification AMS 5528. ROCKWELL B92 OR EQUIVALENT Thickness Max. Width Dec. Inches Equiv. MM Inches .008 .012 .015 .018 .020 .025 .2032 .3048 .3810 .4572 .5080 .6350 36 36 36 36 36 36 Lbs. Per Sq. Ft. .3342 .5011 .6264 .7517 .8352 1.0440 Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .7874 .8890 1.0160 1.0668 1.2700 1.5748 1.2946 1.4616 1.6704 1.7539 2.0880 2.5891 .031 .035 .040 .042 .050 .062 36 36 36 36 36 36 To estimate weights – weight per blank (T x W x L) .29 – weight per Lin. Ft. (T x W) 3.48 Rockwell values for Nickel Bearing Stainless are not altogether reliable and only approximate. 67 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 68 PRECISION BRAND® C.R. STAINLESS STEEL STRIP 17/7-PH CONDITION C Hard Rolled No. 2 as Rolled Finish Heat Treatable + Analysis – Same as previous page 17/7-PH Condition C (Hard Rolled Temper 17/7 Cr – Ni 1 % AL) Precipitation Hardenable Stainless Steel Strip. This alloy provides design and production advantages possessed by none of the standard stainless steels. It can be formed in about the same way as hard rolled Type 301 with the added advantage of subsequent heat treatment for further hardening purposes and has minimum distortion on heat treatment. Its corrosion resistance is superior to that of the straight chromium grades. This temper conforms to the SAE Aeronautical Material specification AMS 5529. Condition C has a tensile strength of 200,000 PSI minimum, a yield strength of 175,000 PSI minimum and elongation in 2 inches of 1% minimum. ROCKWELL C41 OR EQUIVALENT Thickness Max. Width Dec. Inches Equiv. MM Inches .005 .008 .010 .012 .015 .018 .1270 .2032 .2540 .3048 .3810 .4572 36 36 36 36 36 36 Lbs. Per Sq. Ft. .2088 .3342 .4176 .5011 .6264 .7517 Thickness Max. Width Dec. Inches Equiv. MM Inches .020 .025 .031 .035 .050 .062 .5080 .6350 .7874 .8890 1.2700 1.5748 36 36 36 36 36 36 Lbs. Per Sq. Ft. .8352 1.0440 1.2946 1.4616 2.0880 2.5891 Weight Factor – Steel Weight x 1.024 To Estimate weights – weight per blank (T x W x L) .29 – weight per Lin. Ft. (T x W) 3.48 Rockwell values for Nickel Bearing Stainless are not altogether reliable and approximate only. 68 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 69 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 410 • COLD ROLLED AND ANNEALED Hardened by Thermal Treatment ASTM A 240 AISI 410 Analysis C .10/.15 Max. S .030 Max. Mn 1.00 Max. Si 1.00/Max. P .040 Max. Cr 11.50/13.50 SOFT and DUCTILE – This type 410 (Martensitic) Stainless Steel Strip is the general purpose and most widely used of all the Martensitic grades of stainless steels. In its annealed condition it may be drawn, formed or shaped and because it is an air or oil quench hardening grade it can be hardened to high strength levels by subsequent heat treatments. While Type 410 offers very good resistance to scaling up to 12000 F., and its mechanical properties are excellent, it is NOT recommended for applications in which severe corrosion is encountered. Type 410 is used for springs, scrapers, fasteners, hardware brackets, furnace parts and burners. It is magnetic in all conditions. Tensile strength (as annealed) min. 65,000 PSI, yield strength minimum 30,000 PSI, and elongation in 2 inches at 20%. For solution annealing, slow controlled cooling from 1500/16000 F. For hardening, heat to 1700/18500F. Quench in air or oil. ROCKWELL B95 MAX COMPLETE FACILITIES for Slitting – Shearing – Leveling and Blanking Thickness Dec. Inches Equiv. MM .005* .006* .008* .010 .012 .014 .015 .016 .018 .020 .022 .025 .030 .032 .035 .040 .042 .045 .050 .055 .059 .062 .090 .105 .125 .165 .187 * coils, only .1270 .1524 .2032 .2540 .3048 .3556 .3810 .4064 .4572 .5080 .5588 .6350 .7620 .8128 .8890 1.0160 1.0668 1.1430 1.2700 1.3970 1.4986 1.5748 2.2860 2.6670 3.1750 4.1910 4.7498 Max. Width Inches 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 Lbs. Per Sq. Ft. .2016 .2419 .3226 .4032 .4838 .5645 .6048 .6451 .7258 .8064 .8870 1.0080 1.2096 1.2902 1.4112 1.6128 1.6934 1.8144 2.0160 2.2176 2.3789 2.4998 3.6288 4.2336 5.0400 6.6528 7.5398 69 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:35 PM Page 70 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 410 • PRE HARDENED AND TEMPERED AlSl 410 Analysis C .15 Max. S .030 Max. Mn 1.00 Max. Si 1.00 Max. P .040 Max. Cr 11.50/13.50 Type 410 Stainless in its cold rolled, hardened and tempered condition is used in countless applications similar to Cold Rolled High Carbon Spring Steel Strip but with the advantages inherent in being stainless and at moderate cost. Its formability is good for its yield strength and hardness range. Type 410 in its pre-hardened condition is stocked by us in coils ready for slitting to exact widths for press feed operations or to exact size blanks. At C45 Type 410 develops a tensile strength of 200,000 PSI with yield at 180,000 PSI and elongation in 2 inches of 2%. COMPLETE FACILITIES for Slitting – Shearing – Leveling and Blanking ROCKWELL RANGE C40/45 Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .005* .008* .010 .012 .1270 .2032 .2540 .3048 26 26 26 26 .2016 .3226 .4032 .4838 .015 .020 .025 .3810 .5080 .6350 26 26 26 .6048 .8064 1.0080 Weight Factor – Steel Weight x .9883 Slit Coils or Cut Lengths * coils only 70 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 71 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 420 • SOFT ANNEALED AlSl 420 Chemistry Only Analysis C .22–.27 P .040 Max. Mn 1.00 Max. S .030 Max. Si 1.00 Max. Cr 12.5/14.00 Type 420, a modification of 410, has a higher carbon content to increase hardness, improve strength and give better wear resistance. This type maintains its best corrosion resistance in the heat treated condition. Tempering temperatures above 7000 F. are not normally recommended and Type 420 must be preheated before and annealed after welding. Principal applications: Bushings, Dental and Surgical Instruments, Pump Parts, Valve Parts, and Shafts. Our 420 is not bought or recommended to a cutlery grade. ROCKWELL B-96 MAX. Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .015 .018 .022 .028 .032 .3810 .4572 .5588 .7112 .8128 24 24 24 24 24 .6048 .7258 .8870 1.1290 1.2902 .042 .050 .062 .077 .094 1.0668 1.2700 1.5748 1.9558 2.3876 24 24 24 24 24 1.6934 2.0160 2.4998 3.1046 3.7901 71 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 72 PRECISION BRAND® C.R. STAINLESS STEEL STRIP TYPE 430 • SOFT ANNEALED AND SKIN PASSED AMS 5503 ASTM A 240 Analysis C .12 Max. S .030 Max. Mn 1.00 Max. Cr 16.00/18.00 Si 1.00 Max. P .040 Max. Coils or Lengths EXTRA BRIGHT ANNEALED SOFT TEMPER TYPE 430 – Stainless Strip Steel is the most popular of all the straight chrome stainless steels. Its principal use is for decorative purposes. Because of its excellent heat and corrosion resistant properties, its ductility and because it costs less than the chrome-nickel grades, this Type 430 Stainless Steel Strip is used in countless applications. These uses are primarily for stainless and decorative purposes including household appliances, metal molding, metal trim, cabinet hardware, hinges, drawn and formed parts and stampings. ROCKWELL B88 MAX Thickness Max. Width Lbs. Per Thickness Max. Width Dec. Inches Equiv. MM Inches Sq. Ft. Dec. Inches Equiv. MM Inches COMPLETE FACILITIES for Coil Slitting, Blanking and Sheet Shearing 36 .007 .1778 .2822 .032 .8128 36 36 .008* .2032 .3226 .035 .8890 36 36 .010 .2540 .4032 .037 .9398 36 36 .012 .3048 .4838 .040 1.0160 36 36 .015 .3810 .6048 .048 1.2192 36 36 .018 .4572 .7258 .050 1.2700 36 36 .020 .5080 .8064 .059 1.4986 36 36 .022 .5588 .8870 .062 1.5748 36 36 .025 .6350 1.0080 .075 1.9050 36 36 .030 .7620 1.2096 .094 2.3876 36 36 .031 .7874 1.2499 Lbs. Per Sq. Ft. 1.2902 1.4112 1.4918 1.6128 1.9354 2.0160 2.3789 2.4998 3.0240 3.7901 To estimate Weights Type 430. Weight per blank (T x W x L) .28 – weight per Lin. Ft. (T x W) 3.36 Suggested Rockwell Tests • B Scale for .040 and thicker • 30T Scale for .025 to .039 • 15T Scale for .024 to .010 * Coils only. All other sizes available in coil or cut lengths. TYPE 430 CHARACTERISTICS TYPE 430 (17% straight chrome) Ferritic Stainless Steel Strip. This is the basic and most generally used straight chromium (Ferritic) Stainless Strip Steel. Because of its high chromium content, it is highly corrosion and heat resistant but somewhat less than Types 301, 302 and 304. It possesses good physical and mechanical characteristics but with ductility at about 75% of low carbon strip and inferior to that of the chrome-nickel grades. Like other straight chromium grades, Type 430 Annealed is subject to stretcher strains. Skin passing following annealing greatly reduces this possibility although this reduces ductility somewhat. Likewise a condition akin to stretcher strains may sometimes develop during deep drawing known as roping. Roping is characterized by the appearance of shallow ridges and valleys in the side walls and caused by excessive stretching. Type 430 is magnetic in all conditions, is not heat-treatable for hardening purposes and is weldable but its welds are not suitable in rigorous service. The tensile strength for Type 430 in the annealed condition is cataloged at 65,000 PSI minimum, its yield at 30,000 PSI minimum and elongation at 22%. 72 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Tab Brass & Phos. Bronze Strip Page 73 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Tab Brass & Phos. Bronze Strip Page 74 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 75 PRECISION STEEL® COPPER BASE ALLOYS INDEX Many of these gauges, hardnesses and grades are also available in our Charlotte Service Center. Soft Brass (Drawing and Spinning) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Quarter Hard Brass* (1 Number Hard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Half Hard Brass* (2 Numbers Hard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Hard Temper Brass* (4 Numbers Hard) . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Phosphor Bronze* (8 Numbers Hard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 TOLERANCE TABLES Copper Base Alloy Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134-135 *Indicates B & S numbers reduction (refer to comparison of properties and temper designations – pages 84 & 85). TO CONVERT POUNDS TO KILOGRAMS multiply by .4536 (pounds x .4536 = kg.) TO CONVERT KILOGRAMS TO POUNDS multiply by 2.2046 (kg. x 2.2046 = pounds) 75 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:49 PM Page 76 PRECISION BRAND® C.R. BRASS STRIP (70%) CDA 260 SOFT TEMPER For Easy Drawing Forming, Spinning SAE CA260 Cu. 70% Zn. 30% Grain Size .035/.055 approx. Soft Temper Brass Strip (analysis above) for drawing and spinning. This material has been cold rolled to its finished thickness and annealed to a controlled grain size and has an approximate tensile strength of 48,000 PSI. It has most excellent cold forming and drawing qualities. Note – Extra deep drawing quality available but only with the breakage allowances as negotiated to meet specific requirements. It is used for eyelets, flashlight shells, lamp fixtures, rivets, drawn and spun parts. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. COMPLETE FACILITIES for Coil Slitting, Blanking and Sheet Shearing .0080 .0100 .0126 .0159 .2032 .2540 .3200 .4039 24 24 24 24 .355 .444 .559 .706 .0320 .0359 .0403 .0453 .8128 .9119 1.0236 1.1506 24 24 24 24 1.419 1.573 1.788 2.009 .0179 .0201 .0253 .4547 .5105 .6426 24 24 24 .794 .892 1.122 .0508 .0641 .0720 1.2903 1.6281 1.8288 24 24 24 2.253 2.844 3.172 TEMPER DESIGNATIONS of Wrought Copper – Base Alloys Brass and Phosphor Bronze B & S Numbers Reduction Description Approximate % Reduction by Cold Working Strip 0 1 2 3 4 6 8 10 Soft Temper Quarter Hard Temper Half Hard Temper Three Quarter Hard Temper Hard Temper Extra Hard Temper Spring Temper Extra Spring Temper None 10.9% 20.7% 29.4% 37.1% 50.0% 60.5% 68.7% NUMBERS HARD – (Brown and Sharpe). A standard system wherein temper is expressed by the number of B & S gage numbers as cold reduced in thickness from a previous annealing – for each B & S gage number in thickness as cold reduced there is assigned a hardness value of 1/4 hard. To illustrate: one number hard = 1/4 hard temper, two numbers hard = 1/2 hard, etc. 76 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 77 PRECISION BRAND® C.R. BRASS STRIP (70%) CDA 260 QUARTER HARD TEMPER SAE CA260 Cu. 70% Zn. 30% ROCKWELL 30T 43/60 approx. Quarter Hard Brass Strip (analysis above) has been cold reduced (By one B & S gage number) 10.9% from its annealed condition to a tensile strength of approximately 54,000 PSI and elongation in 2” at 43%. It has excellent cold forming qualities and is suitable for moderate drawing or forming and in general where dead soft quality would be objectionable and some slight stiffness is required. It is used for rolled formed and drawn parts, lamp fixtures, etc. In Coils or Lengths for Blanking, Stamping and Forming Thickness Dec. Inches Equiv.MM Max. Width Inches Lbs. Per Sq. Ft. .010 .0126 .0159 .0179 .2540 .3200 .4039 .4547 24 24 24 24 .444 .559 .706 .794 .0201 .0253 .0320 .0403 .5105 .6426 .8128 1.0236 24 24 24 24 .892 1.122 1.419 1.788 .0453 .0508 .0641 1.1506 1.2903 1.6281 24 24 24 2.009 2.253 2.844 Other sizes not shown available on special order TO ESTIMATE BRASS WEIGHTS: Weight per blank (T x W x L) .308 Weight per Lineal Foot (T x W) 3.696. FACTOR – Steel weight x 1.087 77 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 78 PRECISION BRAND® C.R. BRASS STRIP (70%) CDA 260 HALF HARD TEMPER SAE CA260 Cu. 70% Zn. 30% ROCKWELL 30T 56/68 approx. Half Hard Brass Strip (analysis above) has been cold reduced (By two B & S gage numbers) 20.7% from its annealed condition to a tensile strength of approximately 62,000 PSI and elongation in 2” at 23%. It has excellent cold forming qualities and may be lightly drawn, blanked or stamped; is used where some stiffness is required and deep drawing or severe forming is not. It is used for continuous hinges, cabinet hardware, etc. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches .0010 .0020 .0031 .0040 .0254 .0508 .0787 .1016 6 6 6 12 .044 .089 .138 .177 .0253 .0285 .0320 .0359 .6426 .7239 .8128 .9119 24 24 24 24 1.122 1.264 1.419 1.593 .0050 .0063 .0071 .0080 .1270 .1600 .1803 .2032 12 12 12 12 .221 .280 .315 .355 .0403 .0453 .0508 .0571 1.0236 1.1506 1.2903 1.4503 24 24 24 24 1.788 2.009 2.253 2.533 .0100 .0126 .0142 .0159 .0201 .2540 .3200 .3607 .4039 .5105 24 24 24 24 24 .444 .559 .630 .706 .892 .0641 .0780 .0808 .0907 .1250 1.6281 1.9812 2.0523 2.3037 3.1750 24 24 24 24 24 2.844 3.459 3.583 4.022 5.544 70-30 ALLOY– The most generally used Brass Strip 78 Lbs. Per Sq. Ft. 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 79 PRECISION BRAND® C.R. BRASS STRIP (70%) CDA 260 HARD TEMPER SAE CA260 Cu. 70% Zn. 30% ROCKWELL 30T 70/74 approx. Hard Temper Brass Strip (analysis above) has been cold reduced (By four B & S gage numbers) 37.1% from its annealed condition to a tensile strength of approximately 76,000 PSI and elongation in 2” at 8%. It has excellent cold working qualities and may be lightly formed, stamped, or blanked. Used for fasteners, electrical parts, shims, etc. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. Thickness Max. Width Dec. Inches Equiv. MM Inches Lbs. Per Sq. Ft. .0100 .0126 .2540 .3200 24 24 .444 .559 .0320 .0403 .8128 1.0236 24 24 1.419 1.788 .0159 .0179 .4039 .4547 24 24 .706 .794 .0508 .0641 1.2903 1.6281 24 24 2.253 2.844 .0201 .0253 .5105 .6426 24 24 .892 1.122 .0907 .1285 2.3037 3.263 24 24 4.023 5.699 PRECISION BRAND® C.R. BRASS STRIP (70%) CDA 260 SPRING TEMPER SAE CA260 Cu. 70% Zn. 30% ROCKWELL 30T 76/78 approx. Spring Temper Brass Strip has been cold reduced (by eight B & S gage numbers) 60.5% from its annealed condition to a tensile strength of 94,000 PSI and elongation in 2” at 3%. This spring temper cold rolled strip is widely used for mechanical springs where resistance to corrosion is required and where the more expensive copper base alloys are not necessary. Thickness Max. Width Dec. Inches Equiv. MM Inches .0100 .0126 .0159 .0180 .2540 .3200 .4039 .4572 24 24 24 24 Lbs. Per Sq. Ft. .444 .559 .706 .798 Thickness Max. Width Dec. Inches Equiv. MM Inches .0201 .0253 .0320 .0403 .5105 .6426 .8128 1.0236 24 24 24 24 Lbs. Per Sq. Ft. .892 1.122 1.419 1.788 79 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 80 C.R. PHOSPHOR PRECISION BRAND BRONZE STRIP (5% A) CDA 510 ® SPRING TEMPER SAE CA510 Cu. 95% Sn. 5% ROCKWELL B92/98 approx. Spring Temper Phosphor Bronze – 5% Cold Rolled Strip (analysis above) has been cold reduced (By eight B & S gage numbers) 60.5% from its annealed condition to a tensile strength of approximately 100,000 PSI and elongation in 2” of 4%. It has high tensile strength, good resistance to corrosion and fatigue and excellent forming properties. It is used for fuse clips, lock washers, contacts for relays, mechanical springs, etc. COMPLETE FACILITIES for Slitting – Shearing – Blanking and Edging Thickness Dec. Inches Equiv. MM Max. Width Inches Lbs. Per Sq. Ft. .005 .0071 .008 .010 .0126 .1270 .1803 .2032 .2540 .3200 8 8 8 8 8 .230 .327 .369 .461 .581 .0142 .0159 .0179 .0201 .0230 .3607 .4039 .4547 .5105 .5842 8 8 8 8 8 .654 .733 .825 .926 1.059 .0253 .0320 .0359 .0403 .0508 .0641 .6426 .8128 .9119 1.0236 1.2903 1.6281 8 8 8 8 8 8 1.166 1.475 1.654 1.857 2.341 3.034 TO ESTIMATE WEIGHTS – GRADE A BRONZE Weight per blank (T x W x L) .32 Weight per Lineal Foot (T x W) 3.84 FACTOR – Steel Weight x 1.1295 80 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 81 Tab Tool Room Specialties 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 82 Tab Tool Room Specialties 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Tab Technical Data Page 83 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Tab Technical Data Page 84 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 85 PRECISION BRAND® HANDY FORMULA FOR ESTIMATING STRIP WEIGHTS Coil Wt. Pounds per Inch per Blank of Width (OD2-1D2) (T x W x L) Pounds Pounds per per Lineal Lineal Inch Foot (T x W) (T x W) Pounds per Square Inch Strip Product Wt. Per Cubic Inch Times Steel Weight STRIP STEEL .2833 – .2223 .2833 .2833 3.40 Tx .2833 1.024 .2276 .29 .29 3.48 Tx .29 Tx .28 STAINLESS STRIP – Type 302 .29 STAINLESS STRIP – Type 430 .28 .9883 .2201 .28 .28 3.36 .098 .345 .0769 .098 .098 1.176 Tx .098 .308 1.087 .2416 .308 .308 3.696 Tx .308 .320 1.13 .2512 .320 .320 3.84 ALUMINUM – Alloy 1100 BRASS STRIP – Yellow BRONZE STRIP – Grade A 5% Tx .320 Note – T = Decimal thickness. W = Width in inches. L = Length in inches. Black Plate Weight per Base Box – To convert to decimal thickness multiply by .00011. INDEX Weight Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86-87 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88-114 Metric Conversion Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115-118 Tolerance Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119-135 Standard Chemical Analyses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136-137 Rockwell Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140-141 Cross Reference Of Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 142-143 Coil Weight Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144-145 Fractions As Decimals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Standard Gage Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Trade Customs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 Manufacturing Limits Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Custom Processing of Your Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Oscillated Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Statistical Process Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Electronic Data Interchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Bar Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 85 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 86 WEIGHT OF COLD ROLLED STRIP STEEL TABLE of POUNDS per LINEAL FOOT DEC. THICK .125 1/8” Width In Decimal Inches and Fractions of an Inch .1875 .3125 .4375 .250 .375 3/16” 5/16” 7/16” 1/4” 3/8” .500 1/2” .001 .002 .003 .004 .005 .0004 .0009 .0013 .0017 .0021 .0006 .0013 .0019 .0026 .0032 .0009 .0017 .0026 .0034 .0043 .0011 .0021 .0032 .0043 .0053 .0013 .0026 .0038 .0051 .0064 .0015 .0030 .0045 .0060 .0074 .0017 .0034 .0051 .0068 .0085 .006 .007 .008 .009 .010 .0026 .0030 .0034 .0038 .0043 .0038 .0045 .0051 .0057 .0064 .0051 .0060 .0068 .0077 .0085 .0064 .0074 .0085 .0096 .0106 .0077 .0089 .0102 .0115 .0128 .0089 .0104 .0119 .0134 .0149 .0102 .0119 .0136 .0153 .0170 .012 .013 .014 .015 .016 .0051 .0055 .0060 .0064 .0068 .0077 .0083 .0089 .0096 .0102 .0102 .0111 .0119 .0128 .0136 .0128 .0138 .0149 .0159 .0170 .0153 .0166 .0179 .0191 .0204 .0179 .0193 .0208 .0223 .0238 .0204 .0221 .0238 .0255 .0272 .018 .019 .020 .022 .023 .0077 .0081 .0085 .0094 .0098 .0115 .0121 .0128 .0140 .0147 .0153 .0162 .0170 .0187 .0196 .0191 .0202 .0213 .0234 .0244 .0230 .0242 .0255 .0281 .0293 .0268 .0283 .0298 .0327 .0342 .0306 .0323 .0340 .0374 .0391 .024 .025 .026 .028 .030 .0102 .0106 .0111 .0119 .0128 .0153 .0159 .0166 .0179 .0191 .0204 .0213 .0221 .0238 .0255 .0255 .0266 .0276 .0298 .0319 .0306 .0319 .0332 .0357 .0383 .0357 .0372 .0387 .0417 .0446 .0408 .0425 .0442 .0476 .0510 .031 .032 .035 .040 .042 .0132 .0136 ,0149 .0170 .0179 .0198 .0204 .0223 .0255 .0268 .0264 .0272 .0298 .0340 .0357 .0329 .0340 .0372 .0425 .0446 .0395 .0408 .0446 .0510 .0536 .0461 .0476 .0521 .0595 .0625 .0527 .0544 .0595 .0680 .0714 .045 .048 .050 .058 .060 .0191 .0204 .0213 .0247 .0255 .0287 .0306 .0319 .0370 .0382 .0383 .0408 .0425 .0493 .0510 .0478 .0510 .0531 .0616 .0637 .0574 .0612 .0638 .0740 .0765 .0669 .0714 .0744 .0863 .0892 .0765 .0816 .0850 .0986 .1020 .062 .065 .072 .074 .078 .0264 .0276 .0306 .0315 .0332 .0395 .0414 .0459 .0472 .0497 .0527 .0553 .0612 .0629 .0663 .0659 .0691 .0765 .0786 .0829 .0791 .0829 .0918 .0944 .0995 .0922 .0967 .1071 .1101 .1160 .1054 .1105 .1224 .1258 .1326 .083 .090 .093 .109 .119 .0353 .0383 .0395 – – .0529 .0574 .0593 .0695 .0759 .0706 .0765 .0791 .0927 .1012 .0882 .0956 .0988 .1158 .1264 .1058 .1148 .1186 .1390 .1517 .1235 .1339 .1383 .1621 .1770 .1141 .1530 .1581 .1853 .2023 .125 .134 .156 .187 – – – – .0787 .0854 .0995 .1192 .1063 .1139 .1326 .1590 .1328 .1424 .1658 .1987 .1594 .1709 .1989 .2384 .1859 .1993 .2321 .2782 .2125 .2278 .2652 .3179 86 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 87 WEIGHT OF COLD ROLLED STRIP STEEL TABLE of POUNDS per LINEAL FOOT DEC. THICK .5625 9/16” Width In Decimal Inches and Fractions of an Inch .8125 .625 .6875 .750 .875 .9375 13/16” 5/8” 11/16” 3/4” 7/8” 15/16” 1.000 1” .001 .002 .003 .004 .005 .0019 .0038 .0057 .0077 .0096 .0021 .0043 .0064 .0085 .0106 .0023 .0047 .0070 .0094 .0117 .0026 .0051 .0077 .0102 .0128 .0028 .0055 .0083 .0111 .0138 .0030 .0060 .0089 .0119 .0149 .0032 .0064 .0096 .0128 .0159 .0034 .0068 .0102 .0136 .0170 .006 .007 .008 .009 .010 .0115 .0134 .0153 .0172 .0191 .0128 .0149 .0170 .0191 .0213 .0140 .0164 .0187 .0210 .0234 .0153 .0179 .0204 .0230 .0255 .0166 .0193 ,0221 .0249 .0276 .0179 .0208 .0238 .0268 .0298 .0191 .0223 .0255 .0287 .0319 .0204 .0238 .0272 .0306 .0340 .012 .013 .014 .015 .016 .0230 .0249 .0268 .0287 .0306 .0255 .0276 .0298 .0319 .0340 .0281 .0304 .0327 .0351 .0374 .0306 .0332 .0357 .0383 .0408 .0332 .0359 .0387 .0414 .0442 .0357 .0387 .0417 .0446 .0476 .0383 .0414 .0446 .0478 .0510 .0408 .0442 .0476 .0510 .0544 .018 .019 .020 .022 .023 .0344 .0363 .0383 .0421 .0440 .0383 .0404 .0425 .0468 .0489 .0421 .0444 .0468 .0514 .0538 .0459 .0485 .0510 .0561 .0587 .0497 .0525 .0553 .0608 .0635 .0536 .0565 .0595 .0655 .0684 .0574 .0606 .0638 .0701 .0733 .0612 .0646 .0680 .0748 .0782 .024 .025 .026 .028 .030 .0459 .0478 .0497 .0536 .0574 .0510 .0531 .0553 .0595 .0638 .0561 .0584 .0608 .0655 .0701 .0612 .0638 .0663 .0714 .0765 .0663 .0691 .0718 .0774 .0829 .0714 .0744 .0774 .0833 .0893 .0765 .0797 .0829 .0893 .0956 .0816 .0850 .0884 .0952 .1020 .031 .032 .035 .040 .042 .0593 .0612 .0669 .0765 .0803 .0659 .0680 .0744 .0850 .0893 .0725 .0748 .0818 .0935 .0982 .0791 .0816 .0893 .1020 .1071 .0856 .0884 .0967 .1105 .1160 .0922 .0952 .1041 .1190 .1250 .0988 .1020 .1116 .1275 .1339 .1054 .1088 .1190 .1360 .1428 .045 .048 .050 .058 .060 .0861 .0918 .0956 .1109 .1147 .0956 .1020 .1063 .1233 .1275 .1052 .1122 .1169 .1356 .1402 .1148 .1224 .1275 .1479 .1530 .1243 .1326 .1381 .1602 .1657 .1339 .1428 .1488 .1726 .1785 .1434 .1530 .1594 .1849 .1912 .1530 .1632 .1700 .1972 .2040 .062 .065 .072 .074 .078 .1186 .1243 .1377 .1415 .1492 .1318 .1381 .1530 .1573 .1658 .1449 .1519 .1683 .1730 .1823 .1581 .1658 .1836 .1887 .1989 .1713 .1796 .1989 .2044 .2155 .1845 .1934 .2142 .2202 .2321 .1976 .2072 .2295 .2359 .2486 .2108 .2210 .2448 .2516 .2652 .083 .090 .093 .109 .119 .1587 .1721 .1779 .2085 .2276 .1764 .1913 .1976 .2316 .2529 .1940 .2104 .2174 .2548 .2782 .2117 .2295 .2372 .2780 .3035 .2293 .2486 .2569 .3011 .3287 .2469 .2678 .2767 .3243 .3540 .2646 .2869 .2964 .3474 .3793 .2822 .3060 .3162 .3706 .4046 .125 .134 .156 .187 .2391 .2563 .2984 .3576 .2656 .2848 .3315 .3974 .2922 .3132 .3647 .4371 .3188 .3417 .3978 .4769 .3953 .3702 .4310 .5166 .3719 .3987 .4641 .5563 .3984 .4271 .4973 .5961 .4250 .4556 .5304 .6358 87 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 88 DEFINITIONS ACCORDION REED STEEL – Hardened, tempered, polished and blued, or yellow flat steel with dressed edges. Carbon content about 1.00. Material has to possess good flatness, uniform hardness and high elasticity. ACID-BRITTLENESS – Brittleness resulting from pickling steel in acid; hydrogen, formed by the interaction between iron and acid, is partially absorbed by the metal, causing acid brittleness. ACID-PROCESS – A process of making steel, either Bessemer, open-hearth or electric, in which the furnace is lined with a siliceous refractory and for which low phosphorous pig iron is required as this element is not removed. ACID STEEL – The term has no reference to the acidity of the steel. (See acid process.) AGE HARDENING – The term as applied to soft, or low carbon steels, relates to a wide variety of commercially important, slow, gradual changes that take place in properties of steels after the final treatment. These changes, which bring about a condition of increased hardness, elastic limit, and tensile strength with a consequent loss in ductility, occur during the period in which the steel is at normal temperatures. AGING – Spontaneous change in the physical properties of some metals, which occurs on standing, at atmospheric temperatures after final cold working or after a final heat treatment. Frequently synonymous with the term “Age-Hardening.” AIR COOLING – Cooling of the heated metal, intermediate in rapidity between slow furnace cooling and quenching, in which the metal is permitted to stand in the open air. AIR HARDENING STEEL – Alloy steel which may be hardened by cooling in air from a temperature above the transformation range. Such steels attain their martensitic structure without going through the quenching process. Additions of chromium, nickel, molybdenum and manganese are effective toward this end. AISI STEELS – Steels of the American Iron and Steel Institute. Common and alloy steels have been numbered in a system essentially the same as the SAE. The AISI system is more elaborate than the SAE in that all numbers are preceded by letters: “A” represents basic open-hearth alloy steel, “B” acid Bessemer carbon steel, “C” basic open-hearth carbon steel, “CB” either acid Bessemer or basic open hearth carbon steel, “E” electric furnace alloy steel. ALCLAD – The common name for a type of clad wrought aluminum products, such as sheet and wire, with coatings of high-purity aluminum or an aluminum alloy different from the core alloy in composition. The coatings are anodic to the core so they protect exposed areas of the core electrolytically during exposure to corrosive environments. ALLOTROPY – See Polymorphism. ALLOY – (Met.) Metal prepared by adding other metals or non-metals to a basic metal to secure desirable properties. ALLOY STEEL – Steel containing substantial quantities of elements other than carbon and the commonly-accepted limited amounts of manganese, sulfur, silicon, and phosphorus. Addition of such alloying elements is usually for the purpose of increased hardness, strength or chemical resistance. The metals most commonly used for forming alloy steels are: nickel, chromium, silicon, manganese, tungsten, molybdenum and vanadium. “Low Alloy” steels are usually considered to be those containing a total of less than 5% of such added constituents. ALPHA BRASS – A copper-zinc alloy containing up to 38% of zinc. Used mainly for cold working. ALPHA BRONZE – A copper-tin alloy consisting of the alpha solid solution of tin in copper. Commercial forms contain 4 or 5% of tin. This alloy is used in coinage, springs, turbine, blades, etc. ALPHA IRON – The polymorphic form of iron, stable below 16700 F. has a body centered cubic lattice, and is magnetic up to 14100 F. ALUMINUM – (Chemical symbol Al) Element No. 13 of the periodic system; Atomic weight 26.97; silvery white metal of valence 3; melting point 12200 F.; boiling point approximately 41180 F.; ductile and malleable; stable against normal atmospheric corrosion, but attacked by both acids and alkalies. Aluminum is used extensively in articles requiring lightness, corrosion resistance, electrical conductivity, etc. Its principal functions as an alloy in steel making; (1) Deoxidizes efficiently (See Aluminum Killed) (2) Restricts grain growth (by forming dispersed oxides or nitrides) (3) Alloying element in nitriding steel. (See Nitriding Steel) ALUMINUM KILLED STEEL – A steel where aluminum has been used as a deoxidizing agent. (See Killed Steel.) AMORPHOUS – Noncrystalline. ANNEALING – A heating and cooling operation implying usually a relatively slow cooling. Annealing is a comprehensive term. The purpose of such a heat treatment may be: to remove stresses; to induce softness; to alter ductility; toughness; electrical magnetic, or other physical properties; to refine the crystalline structure; to remove gases; to produce a definite micro-structure. In annealing, the temperature of the operation and the rate of cooling depend upon the material being heat treated and the purpose of the treatment. ANODIZING – (Aluminum Anodic Oxide Coating) – A process of coating aluminum by anodic treatment resulting in a thin film of aluminum oxide of extreme hardness. A wide variety of dye colored coatings are possible by impregnation in process. 88 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 89 DEFINITIONS (continued) ARTIFICIAL AGING – An aging treatment above room temperature. See precipitation heat treatment and compare with natural aging. A.S.T.M – Abbreviation for American Society For Testing Material. An organization for issuing standard specifications on materials, including metals and alloys. AUSTEMPERING – A trade name for a patented heat treating process that consists in quenching a ferrous alloy from a temperature above the transformation ranges, in a medium having a rate of heat abstraction sufficiently high to prevent the formation of high-temperature transformation products; and in maintaining the alloy, until transformation is complete, at a temperature below that of pearlite formation and above that of martensite formation. AUSTENITE – Phase in certain steels, characterized as a solid solution, usually of carbon or iron carbide, in the gamma form of iron. Such steels are known as “austenitic.” Austenite is stable only above 13330 F. in a plain carbon steel, but the presence of certain alloying elements, such as nickel and manganese, stabilizes the austenitic form, even at normal temperatures. AUSTENITIC STEEL – Steel which, because of the presence of alloying elements, such as manganese, nickel, chromium, etc., shows stability of Austenite at normal temperatures. BAINITE – A slender, needle-like (acicular) microstructure appearing in spring steel strip characterized by toughness and greater ductility than tempered Martensite. Bainite is a decomposition product of Austenite (see Austenite) best developed at interrupted holding temperatures below those forming fine pearlite and above those giving Martensite. BANDED STRUCTURE – Appearance of a metal, under a microscope or viewed by the naked eye, on fractured or smoothed surfaces, with or without etching, showing parallel bands in the direction of rolling or working. BAND SAW STEEL – (WOOD) – A hardened tempered bright polished high carbon cold rolled spring steel strip produced especially for use in the manufacture of band saws for sawing wood, non ferrous metals, and plastics. Usually carries some nickel and with a Rockwell value of approximately C40/45. BARK – Surface of metal, under the oxide-scale layer, resulting from heating in an oxidizing environment. In the case of steel, such bark always suffers from decarburization. BASE BOX – See Tin Plate Base Box. BASIC OPEN HEARTH – (See Open Hearth Process.) BASIC OXYGEN PROCESS – A steel making process wherein oxygen of the highest purity is blown onto the surface of a bath of molten iron contained in a basic lined and ladle shaped vessel. The melting cycle duration is extremely short with quality comparable to Open Hearth Steel. BASIC PROCESS – A steel making process either Bessemer, open hearth or electric, in which the furnace is lined with a basic refractory. A slag, rich in lime, being formed and phosphorus removed. BASIC STEEL – (See Basic Process.) BATH ANNEALING – Is immersion in a liquid bath (such as molten lead or fused salts) held at an assigned temperature-when a lead bath is used, the process is known as lead annealing. BAUXITE – The only commercial ore of aluminum, corresponding essentially to the formula A1203XH20. BEADING – Raising a ridge on sheet metal. BEND TEST – Various tests used to determine the toughness and ductility of flat rolled metal sheet, strip or plate, in which the material is bent around its axis or around an outside radius. A complete test might specify such a bend to be both with and against the direction of grain. For testing, samples should be edge filed to remove burrs and any edgewise cracks resulting from slitting or shearing. If a vice is to be used then line the jaws with some soft metal or brass, so as to permit a free flow of the metal in the sample being tested. BERYLLIUM COPPER – An alloy of copper and 2-3% beryllium with optionally fractional percentages of nickel or cobalt. Alloys of this series show remarkable age-hardening properties and an ultimate hardness of about 400 Brinell (Rockwell C43). Because of such hardness and good electrical conductivity, beryllium – copper is used in electrical switches, springs, etc. BESSEMER PROCESS – A steel making process in which air is blown through the molten iron so that the impurities are thus removed by oxidation. BILLET – (See Bloom.) BINARY ALLOY – An alloy containing two elements, apart from minor impurities, as brass containing the two elements copper and zinc. BLACK ANNEALING – A process of box annealing or pot annealing ferrous alloy sheet, strip or wire after hot working and pickling. (See box annealing.) BLACK OIL TEMPERED SPRING STEEL STRIP – (Scaleless Blue.) A flat cold rolled usually .70/.80 medium high carbon spring steel strip, blue-black in color, which has been quenched in oil and drawn to desired hardness. While it looks and acts much like blue tempered spring steel and carries a Rockwell hardness of C44/47, it has not been polished and is lower in carbon content. Used for less exacting requirements than clock spring steel, such as snaps, lock springs, hold down springs, trap springs, etc. It will take a more severe bend before fracture than will clock spring, but it does not have the same degree of spring-back. 89 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 90 DEFINITIONS (continued) BLACK PLATE – A light weight or a thin uncoated steel sheet or strip so called because of its dark oxide coloring prior to pickling. It is manufactured by two different processes. (1) From sheet bar on single stand sheet mills or sheet mills in tandem. This method is now almost obsolete. (2) On modern, high speed continuous tandem cold reduction mills from coiled hot rolled pickled wide strip into ribbon wound coils to finished gage. Sizes range from 12” to 32” in width, and in thicknesses from 55 lbs. to 275 lbs. base box weight. It is used either as is for stampings, or may be enameled or painted or tin or terne coated. BLAST FURNACE – A vertical shaft type smelting furnace in which an air blast is used, usually hot, for producing pig iron. The furnace is continuous in operation using iron ore, coke, and limestone as raw materials which are charged at the top while the molten iron and slag are collected at the bottom and are tapped out at intervals. BASE BOX – Refer to Tin Plate Base. BLISTER – A defect in metal produced by gas bubbles either on the surface or formed beneath the surface while the metal is hot or plastic. Very fine blisters are called “pin-head” or “pepper” blisters. BLOOM – (Slab, Billet, Sheet-Bar.) Semifinished products, hot rolled from ingots. The chief differences are in their cross sectional areas in ratio of width to thickness, and in their intended use. BLOOMING-MILL – A mill used to reduce ingots to blooms, billets, slabs, sheet-bar etc., (See Semi-finished Steel). BLOWHOLE – A cavity produced during the solidification of metal by evolved gas, which in failing to escape is held in pockets. BLUE ANNEALING – A process of softening ferrous alloys in the form of hot rolled sheet, by heating in the open furnace to a temperature within the transformation range and then cooling in air. The formation of bluish oxide on the surface is incidental. BLUE BRITTLENES – Reduced ductility occurring as a result of strain aging, when certain ferrous alloys are worked between 300 and 7000 F. This phenomenon may be observed at the working temperature or subsequently at lower temperatures. BLUE TEMPERED SPRING STEEL STRIP – (See Tempered Spring Steel Strip.) BLUING – (1) Sheets – A method of coating sheets with a thin, even film of bluish – black oxide, obtained by exposure to an atmosphere of dry steam or air, at a temperature of about 10000 F., generally this is done during box-annealing. (2) Bluing of tempered spring steel strip; an oxide film blue in color produced by low temperature heating. BODY-CENTERED – (concerning space lattices.) Having the equivalent lattice points at the corners of the unit cell, and at its center; sometimes called centered, or space-centered. BONDERIZING – The coating of steel with a film composed largely of zinc phosphate in order to develop a better bonding surface for paint or lacquer. BORON – (Chemical Symbol B) – Element N. 5 of the periodic system. Atomic weight 10.82. It is gray in color, ignites at about 11120 F. and burns with a brilliant green flame, but its melting point in a non oxidizing atmosphere is about 40000 F. Boron is used in steel in minute quantities for one purpose only – to increase the hardenability as in case hardening and to increase strength and hardness penetration. BOTTLE TOP MOLD – Ingot mold, with the top constricted; used in the manufacture of “capped steel,” the metal in the constriction being covered with a cap fitting into the bottleneck, which stops “rimming” action by trapping escaping gases. BOW – (See Camber.) BOX ANNEALING – A process of annealing a ferrous alloy in a suitable closed metal container, with or without packing materials, in order to minimize oxidation. The charge is usually heated slowly to a temperature below the transformation range, but sometimes above or within it, and is then cooled slowly. This process is also called “close annealing” or “pot annealing.” (See black annealing.) BRAKE – A piece of equipment used for bending sheet; also called a “bar folder.” If operated manually, it is called a “hand brake”; if power driven, it is called a “press brake.” BRALE – A diamond penetrator, conical in shape, used with a Rockwell hardness tester for hard metals. BRASS – (Cartridge) Strip. 70% copper 30% zinc. This is one of the most widely used of the copperzinc alloys; it is malleable and ductile; has excellent cold-working; poor hot working and poor machining properties; develops high tensile strength with cold - working. Temper is imparted by cold rolling and classified in hardness by the number of B & S Gages of rolling (reduction in thickness) from the previous annealing gage. Rated excellent for soft-soldering; good for silver alloy brazing or oxyacetylene welding and fair for resistance of carbon arc welding. Used for drawn cartridges, tubes, eyelet machine items, snap fasteners, etc. BRASS SHIM – (See SHIM.) BRASS – (Yellow) Strip. 65% copper and 35% zinc. Known as “High Brass” or “Two to One Brass”. A copper-zinc alloy yellow in color. Formerly widely used but now largely supplanted by Cartridge Brass. BRASSES – Copper base alloys in which zinc is the principal added element. Brass is harder and stronger than either of its alloying elements copper or zinc; it is malleable and ductile; develops high tensile strength with cold - working and is not heat treatable for purposes of hardness development. 90 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 91 DEFINITIONS (continued) BRAZING – Joining metals by fusion of nonferrous alloys that have melting points above 8000 F., but lower than those of the metals being joined. This may be accomplished by means of a torch (torch brazing), in a furnace (furnace brazing) or by dipping in a molten flux bath (dip or flux brazing). The filler metal is ordinarily in rod form in torch brazing; whereas in furnace and dip brazing the work material is first assembled and the filler metal may then be applied as wire, washers, clips, bands, or may be integrally bonded, as in brazing sheet. BREAK TEST – (For tempered steel.) A method of testing hardened and tempered high carbon spring steel strip wherein the specimen is held and bent across the grain in a vice – like calibrated testing machine. Pressure is applied until the metal fractures at which point a reading is taken and compared with a standard chart of brake limitations for various thickness ranges. (See Bend Test.) BRIDLING – The cold working of dead soft annealed strip metal immediately prior to a forming, bending, or drawing operation. A process designed to prevent the formulation of Luder’s lines. Caution – Bridled metal should be used promptly and not permitted to (of itself) return to its pre-bridled condition. (See Luder’s Lines) BRIGHT ANNEALED WIRE – Steel wire bright drawn and annealed in controlled non-oxidizIng atmosphere furnace. BRIGHT ANNEALING – A process of annealing usually carried out in a controlled furnace atmosphere so that surface oxidation is reduced to a minimum and the surface remains relatively bright. BRIGHT BASIC WIRE – Bright steel wire, slightly softer than Bright Bessemer Wire. Used for round head wood screws, bolts and rivets, electric welded chain, etc. BRIGHT BESSEMER WIRE – Stiff bright steel wire of hard drawn temper. Normally drawn to size without annealing. Used for nails, flat head wood screws, cheap springs, etc. BRIGHT COMMERCIAL FINISH – Refer to FINISHES. BRIGHT DIP – An acid solution into which articles are dipped to obtain a clean, bright surface. BRINELL HARDNESS – (Test) – A common standard method of measuring the hardness of certain metals. The smooth surface of the metal is subjected to indentation by a hardened steel ball under pressure or load. The diameter of the resultant indentation, in the metal surface, is measured by a special microscope and the Brinell hardness value read from a chart or calculated by formula. BRITTLENESS – A tendency to fracture without appreciable deformation. BROACHING – Multiple shaving, accomplished by pushing a tool with stepped cutting edges along the work, particularly through holes. BRONZE – Primarily an alloy of copper and tin, but the name is now applied to other alloys not containing tin; e.g., aluminum bronze, manganese bronze, and beryllium bronze. For varieties and uses of tin bronze see (Alpha-bronze and Phosphor bronze). BROWN & SHARPE GAGES – (B&S) – A standard series of sizes arbitrarily indicated, as by numbers, to which the diameter of wire or thickness of sheet metal is usually made and which is used in the manufacture of brass, bronze, copper, copper-base alloys and aluminum. These gage numbers have a definite relationship to each other. By this system the decimal thickness is reduced by 50% every six gage numbers – while temper is expressed by the number of B & S gage numbers as cold reduced in thickness from previous annealing. For each B & S gage number in thickness reduction, there is assigned a hardness value of 1/4 hard. To illustrate: One number hard = 1/4 hard, two numbers hard = 1/2 hard, etc. BUCKLE – Alternate bulges or hollows recurring along the length of the product with the edges remaining relatively flat. BURNING – Heating a metal beyond the temperature limits allowable for the desired heat treatment, or beyond the point where serious oxidation or other detrimental action begins. BURNT– A term applied to a metal permanently damaged by overheating. BURR – A thin ridge or roughness left by a cutting operation such as in metal slitting, shearing, blanking or sawing. This is common to a No. 3 slit edge in the case of steel. BUTCHER SAW STEEL – A hardened, tempered, and bright polished high carbon spring steel strip (carbon content a bit higher than in wood band saw quality) with a Rockwell value of approximately C47/49. BUTT WELDING – Joining two edges or ends by placing one against the other and welding them. CAKE – A copper ingot rectangular in cross section intended for rolling. CAMBER OR BOW – Edgewise curvature. A lateral departure of a side edge of sheet or strip metal from a straight line. CAMERA SHUTTER STEEL – Hardened, tempered and bright polished extra flat and extra precision rolled. Carbon content 1.25 – Chromium .15. CAPPED STEEL – (See Bottle Top Mold.) CARBIDE – A compound of carbon with one or more metallic elements. 91 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 92 DEFINITIONS (continued) CARBON – (Chemical symbol C) – Element No. 6 of the periodic system; atomic weight 12.01; has three allotropic modifications, all non-metallic. Carbon is present in practically all ferrous alloys, and has tremendous effect on the properties of the resultant metal. Carbon is also an essential component of the cemented carbides. Its metallurgical use, in the form of coke, for reduction of oxides, is very extensive. CARBON FREE – Metals and alloys which are practically free from carbon. CARBON RANGE – In steel specifications, the carbon range is the difference between the minimum and maximum amount of carbon acceptable. CARBON STEEL – Common or ordinary steel as contrasted with special or alloy steels, which contain other alloying metals in addition to the usual constituents of steel in their common percentages. CARBURIZING – (Cementation.) Adding carbon to the surface of iron-base alloys by absorption through heating the metal at a temperature below its melting point in contact with carbonaceous solids, liquids or gases. The oldest method of case hardening. CASE HARDENING – Carburizing and subsequently hardening by suitable heat-treatment, all or part of the surface portions of a piece of iron-base alloy. CAST– (1) A term indicating in the annealed state as “Cast Spring Steel Wire.” (2) In reference to Bright or Polished Strip Steel or Wire, the word cast implies discoloration as a shadow. (3) A term implying a lack of straightness as in a coil set. CAST STEEL – Any object made by pouring molten steel into molds. CEMENTITE – A compound of iron and carbon known as “Iron carbide,” which has the approximate chemical formula Fe3C containing 6.69% of carbon. Hard and brittle, it is the hard constituent of cast iron, and the normal form in which carbon is present in steel. It is magnetizable, but not as readily as ferrite. CHARCOAL TIN PLATE – Tin Plate with a relatively heavy coating of tin (higher than the “Coke Tin Plate” grades). CHATTER MARKS – (Defect) – Parallel indentations or marks appearing at right angles to edge of strip forming a pattern at close and regular intervals, caused by roll vibrations. CHIPPING – A method for removing seams and other surface defects with chisel or gouge so that such defects will not be worked into the finished product. Chipping is often employed also to remove metal that is excessive but not defective. Removal of defects by gas cutting is known as “deseaming” or “scarfing.” CHROMIUM – (Chemical symbol Cr) – Element No. 24 of the periodic system; atomic weight 52.01. It is of bright silvery color, relatively hard. It is strongly resistant to atmospheric and other oxidation. It is of great value in the manufacture of Stainless Steel as an iron-base alloy. Chromium plating has also become a large outlet for the metal. Its principal functions as an alloy in steel making; (1) increases resistance to corrosion and oxidation (2) increases hardenability (3) adds some strength at high temperatures (4) resists abrasion and wear (with high carbon). CHROMIUM-NICKEL STEEL – Steel usually made by the electric furnace process in which chromium and nickel participate as alloying elements. The stainless steel of 18% chromium and 8% nickel are the better known of the chromium-nickel types. CIGARETTE KNIFE STEEL – Hardened, tempered and bright polished. 1.25 Carbon content – Chromium .15. Accurate flatness necessary and a high hardness with Rockwell C 51 to 53. Usual sizes are 4 3/4” wide and 6” wide x .004 to .010. CLADDING – A process for covering one metal with another. Usually the surfaces of fairly thick slabs of two metals are brought carefully into contact and are then subjected to co-rolling so that a clad composition results. In some instances a thick electroplate may be deposited before rolling. CLAD METAL – A composite metal containing two or three layers that have been bonded together. The bonding may have been accomplished by co-rolling, welding, heavy chemical deposition or heavy electroplating. CLOCK SPRING STEEL – (See Tempered and Polished Spring Steel Strip .90/103 carbon range.) CLUSTER MILL – A rolling mill where each of the two working rolls of small diameter is supported by two or more back-up rolls. COBALT – (Chemical symbol Co) – Element No. 27 of the periodic system; atomic weight 58.94. A gray magnetic metal, of medium hardness; it resists corrosion like nickel, which it resembles closely; melting point 26960 F., boiling point about 52500 F., specific gravity 8.9. It is used as the matrix metal in most cemented carbides and is occasionally electroplated instead of nickel, the sulfate being used as electrolyte. Its principal function as an alloy in tool steel; it contributes to red hardness by hardening ferrite. COIL SET OR LONGITUDINAL CURL – A lengthwise curve or set found in coiled strip metals following its coil pattern. A departure from longitudinal flatness. Can be removed by roller or stretcher leveling from metals in the softer temper ranges. COILS – Coiled flat sheet or strip metal – usually in one continuous piece or length. 92 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 93 DEFINITIONS (continued) COINING – A process of impressing images or characters of the die and punch onto a plane metal surface. COKE PLATE – (Hot Dipped Tin Plate.) Standard tin plate, with the lightest commercial tin coat, used for food containers, oil canning, etc. A higher grade is the best cokes, with special cokes representing the best of the coke tin variety. For high qualities and heavier coatings, see Charcoal Tin Plate. COIL BREAKS – Creases or Ridges appearing in sheets as parallel lines transverse to the direction of rolling and generally extending across the width of the sheet. COIL WELD – A joint between two lengths of metal within a coil – not always visible in the cold reduced product. COLD REDUCED STRIP – Metal strip, made from hot-rolled strip, by rolling on cold-reduction mills. COLD REDUCTION – Reduction of metal size, usually by rolling or drawing particularly thickness, while the metal is maintained at room temperature or below the recrystallization temperature of the metal. COLD ROLLED FINISH – Finish obtained by cold rolling plain pickled sheet or strip with a lubricant resulting in a relatively smooth appearance. COLD ROLLING – Rolling metal at a temperature below the softening point of the metal to create strain hardening (work-hardening). Same as cold reduction, except that the working method is limited to rolling. Cold rolling changes the mechanical properties of strip and produces certain useful combinations of hardness, strength, stiffness, ductility and other characteristics known as tempers. COLD SHORT – The characteristic of metals that are brittle at ordinary or low temperatures. COLD SHUT – A defect produced during casting, causing an area in metal where two portions of the metal in either a molten or plastic condition have come together but have failed to unite, fuse, or blend into a solid mass. (See Lamination.) COLD WORKING – Plastic deformation, such as rolling, hammering, drawing, etc., at a temperature sufficiently low to create strain-hardening (work-hardening). Commonly, the term refers to such deformation at normal temperatures. COLUMBIUM – (Chemical Symbol Cb) – Element No.41 of the periodic system. Atomic weight 92.91. It is steel gray in color and brilliant luster. Specific gravity 8.57. Melting point at about 43790 F. It is used mainly in the production of stabilized austenitic chromium-nickel steels, also to reduce the air-hardening characteristics in plain chromium steels of the corrosion resistant type. (Now known as Niobium (Nb), Element No. 41 of the periodic system.) COMMERCIAL BRONZE – A copper-zinc alloy (brass) containing 90% copper and 10% zinc; used for screws, wire, hardware, etc. Although termed “commercial-bronze” it contains no tin. It is somewhat stronger than copper and has equal or better ductility. COMMERCIAL FINISH – Refer to FINISHES. COMMERCIAL QUALITY STEEL SHEET – Normally to a ladle analysis of carbon limit at 0.15 max. A Standard Quality Carbon Steel Sheet. CONTINUOUS CASTING – A casting technique in which the ingot is continuously solidified while it is being poured, and the length is not determined by mold dimensions. CONTINUOUS FURNACE – Furnace, in which the material being heated moves steadily through the furnace. CONTINUOUS PICKLING – Passing sheet or strip metal continuously through a series of pickling and washing tanks. CONTINUOUS STRIP MILL – A series of synchronized rolling mill stands in which coiled flat rolled metal entering the first pass (or stand) moves in a straight line and is continuously reduced in thickness (not width) at each subsequent pass. The finished strip is recoiled upon leaving the final or finishing pass. CONTROLLED ATMOSPHERE FURNACES – A furnace used for bright annealing into which specially prepared gases are introduced for the purpose of maintaining a neutral atmosphere so that no oxidizing reaction between metal and atmosphere takes place. CONVERTER – A furnace in which air is blown through the molten bath of crude metal or matte for the purpose of oxidizing impurities. COOLING STRESSES – Stresses developed by uneven contraction or external constraint of metal during cooling; also those stresses resulting from localized plastic deformation during cooling, and retained. COPPER – (Chemical symbol Cu) – Element No. 29 of the periodic system, atomic weight 63.57. A characteristically reddish metal of bright luster, highly malleable and ductile and having high electrical and heat conductivity; melting point 19810 F., boiling point 42370 F., specific gravity 8.94. Universally and extensively used in the arts in brasses, bronzes. Universally used in the pure state as sheet, tube, rod and wire and also as alloyed by other elements (see Brass and Bronze), as an alloy with other metals. CORE WOUND FLAT WIRE – (See Oscillated Wound Coils.) CORROSION – Gradual chemical or electrochemical attack on a metal by atmosphere, moisture or other agents. CORROSION EMBRITTLEMENT – The embrittlement caused in certain alloys by exposure to a corrosive environment. Such material is usually susceptible to the intergranular type of corrosion attack. 93 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 94 DEFINITIONS (continued) CORRUGATED – As a defect. Alternate ridges and furrows. A series of deep short waves. CREEP – The flow or plastic deformation of metals held for long periods of time at stresses lower than the normal yield strength. The effect is particularly important if the temperature of stressing is above the recrystallization temperature of the metal. CRITICAL POINTS – Temperatures at which internal changes or transformations take place within a metal either on a rising or falling temperature. CRITICAL RANGE – A temperature range in which an internal change takes place within a metal. Also termed transformation range. CROP – The defective ends of a rolled or forged product which are cut off and discarded. CROSS BREAK – See Luder’s Lines. This term also applied to transverse ribs or ripple. CROSS DIRECTION – (in rolled or drawn metal). The direction parallel to the axes of the rolls during rolling. The direction at right angles to the direction of rolling or drawing. CROSS ROLLING – Rolling at an angle to the long dimension of the metal; usually done to increase width. CROWN OR HEAVY CENTER – Increased thickness in the center of metal sheet or strip as compared with thickness at the edge. CRUCIBLE – A ceramic pot or receptacle made of graphite and clay, or clay or other refractory material, and used in the melting of metal. The term is sometimes applied to pots made of cast iron, cast steel or wrought steel. CRYSTAL – (1) A physically homogeneous solid in which the atoms, ions or molecules are arranged in a three-dimensional repetitive pattern. (2) A coherent piece of matter, all parts of which have the same anisotropic arrangement of atoms in metals, usually synonymous with “grain” and “crystallite.” CRYSTALLINE – Composed of crystals. CRYSTALLIZATION – The formation of crystals by the atoms assuming definite positions in a crystal lattice. This is what happens when a liquid metal solidifies. (Fatigue, the failure of metals under repeated stresses, is sometimes falsely attributed to crystallization.) CUBE-CENTERED – Metallography – (Concerning space Iattices) – Body-centered cubic. Refers to crystal structure. CUP FRACTURE – A type of fracture in a tensile test specimen which looks like a cup having the exterior portion extended with the interior slightly depressed. CUP TEST – (See Olsen Ductility Test.) CYANIDING – Surface hardening of an iron-base alloy article or portion of it by heating at a suitable temperature in contact with a cyanide salt, followed by quenching. DEAD FLAT – Perfectly flat. As pertaining to sheet, strip or plate. Refer to Stretcher Leveling. DEAD SOFT ANNEALING – Heating metal to above the critical range and appropriately cooling to develop the greatest possible commercial softness or ductility. DEAD SOFT STEEL – Steel, normally made in the basic open-hearth furnace or by the basic oxygen process with carbon less than 0.10% and manganese in the 0.20 - 0.50% range, completely annealed. DEAD SOFT TEMPER – (No. 5 TEMPER) – Condition of maximum softness commercially attainable in wire, strip, or sheet metal in the annealed state. DEBURRING – A method whereby the raw slit edge of metal is removed by rolling or filing. DECARBURIZATION – Removal of carbon from the outer surface of iron or steel, usually by heating in an oxidizing or reducing atmosphere. Water vapor, oxygen and carbon dioxide are strong decarburizers. Reheating with adhering scale is also strongly decarburizing in action. DEEP DRAWING – The process of cold working or drawing sheet or strip metal blanks by means of dies on a press into shapes which are usually more or less cup-like in character involving considerable plastic deformation of the metal. Deep-drawing quality sheet or strip steel, ordered or sold on the basis of suitability for deep-drawing. DEGASSING PROCESS – (In steel making) – Removing gases from the molten metal by means of a vacuum process in combination with mechanical action. DELTA IRON – Allotropic modification of iron, stable above 25520 F., to melting point. It is of bodycentered cubic crystal structure. DEOXIDIZING – Removal of oxygen. In steel sheet, strip, and wire technology, the term refers to heat treatment in a reducing atmosphere, to lessen the amount of scale. (See Controlled Atmosphere Furnaces.) DIE-LINES – Lines of markings caused on drawn or extruded products by minor imperfections in the surface of the die. DIE SINKING – Forming or machining a depressed pattern in a die. DISH – A concave surface departing from a straight line edge to edge. Indicates transverse or across the width. 94 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 95 DEFINITIONS (continued) DOCTOR BLADE STEEL STRIP – A hardened and tempered spring steel strip, usually blued, produced from approximately .85 carbon cold rolled spring steel strip specially selected for straightness and good edges. Sometimes hand straightened or straightened by grinding and cut to desired lengths. This product is used in the printing trade as a blade to uniformly remove excess ink (“dope”) from the rolls; hence its name. DRAWING BACK – Reheating after hardening to a temperature below the critical for the purpose of changing the hardness of the steel. (See Tempering.) DRILL ROD – A term given to an annealed and polished high carbon tool steel rod usually round and centerless ground. The sizes range in round stock from .013 to 1-1/2” diameter. Commercial qualities embrace water and oil hardening grades. A less popular but nevertheless standard grade is a nondeforming quality. Drill Rods are used principally by machinists and tool and diemakers for punches, drills, taps, dowel pins, screw machine parts, small tools, etc. DRY ROLLED FINISH – Finish obtained by cold rolling on polished rolls without the use of any coolant or metal lubricant, of material previously plain pickled, giving a burnished appearance. DUCTILITY – The property of metals that enables them to be mechanically deformed when cold, without fracture. In steel, ductility is usually measured by elongation and reduction of area as determined in a tensile test. DURALUMIN – The trade name applied to the first aluminum – copper – magnesium type of age-hardenable alloy (17S), which contains nominally 4% Cu, 1/2% Mn and 1/2% Mg. The term is sometimes used to include the class of wrought aluminum – copper – magnesiurn alloys that harden during aging at room temperature. EARING – Wavy projections formed at the open end of a cup or shell in the course of deep drawing because of differences in directional properties. Also termed scallop. (See nonscalloping.) EDGES – Many types of edges can be produced in the manufacture of flat rolled metal products. Over the years the following types of edges have become recognized as standard in their respective fields. COPPER BASE ALLOYS – Slit, Slit and Edge Rolled, Sheared, Sawed, Machined or Drawn. SHEET STEELS OR ALUMINUM SHEET – Mill Edge, Slit Edge or Sheared Edge. STRIP STEELS and STAINLESS STRIP No. 1 Edge – A smooth, uniform, round or square edge, either slit or filed or slit and edge rolled as specified, width tolerance + .005”. No. 2 Edge – A natural round mill edge carried through from the hot rolled band. Has not been slit, filed, or edge rolled. Tolerances not closer than hot-rolled strip limits. No. 3 Edge – Square, produced by slitting only. Not filed. Width tolerances close. No. 4 Edge – A round edge produced by edge rolling either from a natural mill edge or from slit edge strip. Not as perfect as No. 1 Edge. Width tolerances liberal. No. 5 Edge – An approximately square edge produced by slitting and filing or slitting and rolling to remove burr. No. 6 Edge – A square edge produced by square edge rolling, generally from square edge hotrolled occasionally from slit strip. Width tolerances and finish not as exacting as No. 1 Edge. EDGE FILING – A method whereby the raw or slit edges of strip metal are passed or drawn one or more times against a series of files, mounted at various angles. This method may be used for deburring only or filing to a specific contour including a completely rounded edge. EDGE STRAIN OR EDGE BREAKS – Creases extending in from the edge of the temper rolled sheet. EDGEWISE CURVATURE – (See Camber.) EDGING – The dressing of metal strip edges by rolling, filing or drawing. ELASTIC LIMIT – Maximum stress that a material will stand before permanent deformation occurs. ELECTRIC FURNACE STEEL – Steel made in any furnace where heat is generated electrically, almost always by arc. Because of relatively high cost, only tool steels and other high-value steels are made by the electric furnace process. ELECTROCLEANING – (Electrolytic Brightening) – An anodic treatment. A cleaning, polishing, or oxidizing treatment in which the specimen or work is made the anode in a suitable electrolyte; an inert metal is used as cathode and a potential is applied. ELECTRO - GALVANIZING – Galvanizing by electro deposition of zinc on steel. (See Galvanizing) ELECTROLYTIC POLISHING – (See Electrocleaning.) ELECTROLYTIC TIN PLATE – Black Plate (See definition) that has been Tin plated on both sides with commercially pure tin by electrodeposition (refer Tin Plating). ELECTROPLATING – The production of a thin coating of one metal on another by electrodeposition. It is very extensively used in industry and is continuing to enlarge its useful functions. Various plated metals and combinations thereof are being used for different purposes, to illustrate: 1. Decoration and protection against corrosion . . . . . . . . . . . . . . . copper, nickel and chromium 2. Protection against corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cadmium or zinc 95 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 96 DEFINITIONS (continued) 3. Protection against wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . chromium 4. Build-up of a part or parts undersize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . chromium or nickel 5. Plate for rubber adhesion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . brass 6. Protection against carburization and for brazing operations . . . . . . . . . . . . copper and nickel ELONGATION – increase in length which occurs before a metal is fractured, when subjected to stress. This is usually expressed as a percentage of the original length and is a measure of the ductility of the metal. EMBOSSING – Raising or indenting a design in relief on a sheet or strip of metal by passing between rolls of desired pattern. (See patterned or embossed this catalog.) ENDURANCE LIMIT – Maximum alternating stress which a given material will withstand for an indefinite number of times without causing fatigue failure. ERICHSEN TEST – Similar to the Olsen Test. (See Olsen Test.) Readings are in millimeters. ETCHING – In metallography, the process of revealing structural details by the preferential attack of reagents on a metal surface. EUTECTOID STEEL– Steel representing the eutectoid composition of the iron - carbon system, with about 0.80% to 0.83% carbon, the eutectoid temperature being about 1333o F. Such steel in the annealed condition consists exclusively of pearlite. Steels with less than this quota of carbon are known as hypo-eutectoid and contain free ferrite in addition to the pearlite. When more carbon is present, the steel is known as hyper-eutectoid and contains free cementite. The presence of certain elements, such as nickel or chromium, lowers the eutectoid carbon content. EXPANDER STEEL – Hardened and tempered, blue polished. Carbon content about 1.00, Chromium .17. Used for the expanders in oil piston rings. Hardness 30 N 70 to 73. Range of sizes run for grooves 3/32” to 1/4” wide with the steel approximately .003 less than the grooves and thickness from .012 to .020. EXTENSOMETER – An apparatus for indicating the deformation of metal while it is subjected to stress. EXTENSOMETER TEST – The measurement of deformation during stressing in the elastic range, permitting determination of elastic properties such as proportional limit, proof stress, yield strength by the offset method and so forth. Requires the use of special testing equipment and testing procedures such as the use of an extensometer or the plotting of a stress-strain diagram. EXTRA HARD TEMPER – In brass mill terminology, Extra Hard is six B & S numbers hard or 50.15% reduction from the previous annealing or soft stage. EXTRA SPRING TEMPER – In brass mill terminology. Extra Spring is ten numbers hard or 68.55% reduction in thickness from the previous annealing or soft stage. EXTRUSION – Shaping metal into a chosen continuous form by forcing it through a die of appropriate shape. FACE CENTERED – (Concerning cubic space lattices) – Having equivalent points at the corners of the unit cell and at the centers of its six faces. A face-centered cubic space lattice is characteristic of one of the close-packed arrangements of equal hard spheres. FATIGUE – The phenomenon leading to fracture under repeated or fluctuating stress. Fatigue fractures are progressive beginning as minute cracks and grow under the action of fluctuating stress. FERROALLOY – An alloy of iron with a sufficient amount of some element or elements such as manganese, chromium, or vanadium for use as a means in adding these elements into molten steel. FERRO-MANGANESE – An alloy of iron and manganese (80% manganese) used in making additions of manganese to steel or cast-iron. FERROUS – Related to iron (derived from the Latin ferrum). Ferrous alloys are, therefore, iron base alloys. FIBER OR FIBRE – Direction in which metals have been caused to flow, as by rolling, with microscopic evidence in the form of fibrous appearance in the direction of flow. FIBER STRESS – Unit stress which exists at any given point in a structural element subjected to load; given as load per unit area. FILED EDGES – Finished edges, the final contours of which are produced by drawing the strip over a series of small steel files. This is the usual and accepted method of dressing the edges of annealed spring steel strip after slitting in cases where edgewise slitting cracks are objectionable or slitting burr is to be removed. FINISHED STEEL – Steel that is ready for the market without further work or treatment. Blooms, billets, slabs, sheet bars, and wire rods are termed “semifinished.” FINISHES – The surface appearance of the various metals after final treatment such as rolling, etc. Over the years the following finishes have become recognized as standard in their respective fields. ALUMINUM SHEET (A) Commercially Bright. (B) Bright one side. (C) Bright both sides. (D) Embossed Sheets (Produced by using embossed rolls). 96 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 97 DEFINITIONS (continued) BLACK PLATE (A) Dull finish without luster produced by use of roughened rolls. (B) Bright finish – a luster finish produced by use of rolls having a moderately smooth surface. COLD ROLLED STEEL SHEETS (A) Commercial Finish. A dull satin surface texture produced by roughened rolls. (B) Commercial – Bright Finish. Bright in appearance with a texture between luster and a very fine matte finish. (C) Luster Finish produced by use of ground and polished rolls. (Note – This is not a number 3 finish.) COLD ROLLED STRIP STEELS No.1 Finish – A dull finish produced without luster by rolling on roughened rolls. No.2 Finish – A regular bright finish produced by rolling on moderately bright rolls. No.3 Finish – Best Bright Finish – A lustrous or high gloss finish produced by rolling on highly polished rolls– Also referred to as “Mirror Finish.” COPPER BASE ALLOYS Acid Dipped-Dry Rolled Finish. Produced by dry cold rolling bichromate dipped alloy with polished rolls, resulting in a burnished appearance and retaining the color obtained by dipping (True Metal Color). Bright Dipped Finish – Finish resulting from an acid dip. Buffed or Polished Surface – A finish obtained by buffing, resulting in a high gloss or polished finish. Cold Rolled Finish –- A relatively smooth finish obtained by cold rolling plain pickled strip with a lubricant. Dry Rolled Finish – A burnished finish resulting from dry cold rolling by use of polished rolls without any metal lubricant. Hot Rolled Finish – A dark relatively rough oxidized finish resulting from rolling the metal while hot. May subsequently be pickled or bright dipped but the rough surface remains. Scratched Brushed Finish (Satin Finish) –-Obtained by mechanically brushing with wire brushes or by buffing. FLAT WIRE No.2 Finish – A regular bright finish. No.3 Finish – Best Bright High Gloss Finish produced by use of polished rolls. Or by special buffing-this is a negotiated finish. STAINLESS COLD ROLLED SHEET and STRIP Nos. 1, 2B & 3B. No.1 Finish – C.R. Annealed and pickled appearance varies from dull gray matte finish to a fairly reflective surface. No.2B Finish – Same as number 1 Finish followed by a final light cold rolled pass generally on highly polished rolls. No.2D Finish – A dull cold rolled finish produced by cold rolling on dull rolls. STAINLESS C. R. SHEET – Polished Finishes No. 3 Finish – This is an intermediate polished finish. No. 4 Finish – Ground and Polished. No. 6 Finish – Ground, Polished and Tampico Brushed. No. 7 Finish – Ground and High Luster Polished. No. 8 Finish – Ground and Polished to Mirror Finish. TEMPERED and UNTEMPERED COLD ROLLED CARBON SPRING STEEL STRIP Classified by description as follows: (A) Black Oil Tempered. (B) Scaleless Tempered (C) Bright Tempered. (D) Tempered and Polished. (E) Tempered, Polished and Colored (Blue or straw). TIN PLATE (A) Bright hot dipped finish. (B) Electro Matte Dull Finish. (C) Electro Bright Reflow Finish produced by the in-the-line thermal treatment following electrodeposition. FINISHING TEMPERATURE – Temperature of final hot-working of a metal. FLAME ANNEALING – A process of softening a metal by the application of heat from a high temperature flame. FLAME HARDENING – A process of hardening a ferrous alloy by heating it above the transformation range by means of a high-temperature flame, and then cooling as required. FLAPPER VALVE STEEL – An extremely flat, very smooth, very accurate to gage, polished, hardened and tempered spring steel produced from approximately 1.15 carbon. The name is derived from its common and principle usage. FLATTENING – (See Roller and Stretcher Leveling.) FLAT LATCH NEEDLE STEEL – Supplied cold rolled and annealed. Carbon content .85. Supplied both in coil and flat length. Used to make flat latch needles which are used in the manufacture of knitted goods. 97 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 98 DEFINITIONS (continued) FLAT WIRE – A flat Cold Rolled, prepared edge section up to 1-1/4” wide, rectangular in shape. Generally produced from hot rolled rods or specially prepared round wire by one or more cold rolling operations, primarily for the purpose of obtaining the size and section desired. May also be produced by slitting cold rolled flat metal to desired width followed by edge dressing. FLOWLINES – Always visible to a greater or less degree when a longitudinal section has been subjected to Macro etching, indicating the direction of working or rolling. FLOW STRESS – The shear stress required to cause plastic deformation of solid metals. FLUTING – Kinking or breakage due to curving of metal strip on a radius so small, with relation to thickness, as to stretch the outer surface above its elastic limit. Not to be confused with the specific product, Fluted Tubes. FOIL – Metal in any width but no more than about 0.005” thick. FOLDS – Defects caused in metal by continued fabrication of overlapping surfaces. FRACTURE – Surface appearance of metals when broken. FRACTURE TEST – Nicking and breaking a bar by means of sudden impact, to enable macroscopic study of the fractured surface. FRICTION GOUGES OR SCRATCHES – A series of relatively short surface scratches variable in form and severity. (Refer to Galling.) FULL ANNEALING – Used principally on iron and steel, means heating the metal to about 1000 F., above the critical temperature range, followed by “soaking” at this point and slow cooling below the critical temperature. FULL FINISH PLATE – Steel sheet or strip, reduced either hot or cold, cleaned, annealed, and then cold-rolled to a bright finish. FULL HARD TEMPER – (A) (No. 1 Temper.) In low carbon sheet or strip steel, stiff and springy, not suitable for bending in any direction. It is the hardest temper obtainable by hard cold rolling. (B) In Stainless Steel Strip, tempers are based on minimum tensile or yield strength. For Chromium-Nickel grades Full Hard temper is 185,000 TS, 140,000 YS Min. Term also used in connection with copper base alloys and considered synonymous with Hard Temper. GAGES – (Metal) – Mfrs. standard numbering systems indicating decimal thicknesses or diameters. GALLING – The damaging of one or both metallic surfaces by removal of particles from localized areas due to seizure during sliding friction. GALVANIZING – Coating steel with zinc and tin (principally zinc) for rustproofing purposes. Formerly for the purpose of galvanizing, cut length steel sheets were passed singly through a bath of the molten metal. Today’s galvanizing processing method consists of uncoiling and passing the continuous length of successive coils either through a molten bath of the metal termed Hot Dipped Galvanizing or by continuously zinc coating the uncoiled sheet electrolytically – termed ELECTRO-GALVANIZING. GAMMA IRON – The form of iron stable between 16700 F., and 25500 F., and characterized by a face - centered cubic crystal structure. GILDING METAL – A copper-zinc alloy containing 95% copper and 5% zinc. While similar to deoxidized copper in physical properties, it is somewhat stronger and very ductile. It has thermal and electrical conductivity slightly better than half that of electrolytic copper and corrosion resistance comparable to copper. GRAIN – A solid polyhedral (or many sided crystal) consisting of groups of atoms bound together in a regular geometric pattern. In mill practice grains are usually studied only as they appear in one plane. (1) (Direction of.) Refers to grain fiber following the direction of rolling and parallel to edges of strip or sheets. (2) To bend across the grain is to bend at right angles to the direction of rolling. (3) To bend with the grain is to bend parallel to the direction of rolling. In steel, the ductility in the direction of rolling is almost twice that at right angles to the direction of rolling. GRAIN BOUNDARY – Bounding surface between crystals. When alloys yield new phases (as in cooling), grain boundaries are the preferred location for the appearance of the new phase. Certain deteriorations, such as season cracking and caustic embrittlement, occur almost exclusively at grain boundaries. GRAIN GROWTH – An increase in metallic crystal size as annealing temperature is raised; growth occurs by invasion of crystal areas by other crystals. GRAINS – Individual crystals in metals. GRAIN SIZE – Average diameter of grains in the metal under consideration, or alternatively, the number of grains per unit area. Since increase in grain size is paralleled by lower ductility and impact resistance, the question of general grain size is of great significance. The addition of certain metals affects grain size, for example vanadium and aluminum tend to give steel a fine grain. The ASTM has set up a grain size standard for steels, and the McQuaid-Ehn Test has been developed as a method of measurement. GRANULATED – A coarse grain or pebbly surface condition which becomes evident during drawing. Refer to Orange Peel. 98 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 99 DEFINITIONS (continued) GRANULATION – The formation of grains immediately upon solidification. GRAPHITIZING – A heating and cooling process by which the combined carbon in cast iron or steel is transformed, wholly or partly, to graphitic or free carbon. GROUND FLAT STOCK – Annealed and preground (to close tolerances) tool steel flats in standard sizes ready for tool room use. These are three common grades; water hardening, oil hardening, and air hardening quality. GUIDE – Device for holding the metal in the proper position, during rolling, or slitting. GUIDE SCRATCH – (Defect) – Scratches or marks appearing parallel to edges of cold rolled strip caused by scale or other particles which have become imbedded in or have adhered to the rolling mill guide. Also applies to similar scratches appearing as a result of slitting. HALF HARD TEMPER – (A) (No. 2 Temper.) In low carbon cold-rolled strip steel, produced by cold rolling to a hardness next to but somewhat softer than full hard temper. (B) In brass mill terminology, half hard is two B & S numbers hard or 20.70% thickness reduction. (C) In Stainless Steel Strip, Tempers are based on minimum tensile or yield strength. For Chromium-Nickel grades Half-Hard Temper 150,000 T.S., 110,000 Y.S. Min. HARD DRAWING – Drawing metal wire through a die to reduce cross section and increase tensile strength. HARD DRAWN – Wire or tubing drawn to high tensile strength by a high degree of cold work. HARD DRAWN SPRING STEEL WIRE – A medium high carbon cold drawn spring steel wire. Used principally for cold wound springs. HARDENABILITY – The ability of a metal, usually steel, to harden in depth as distinguished from the terms “hardness.” (See Hardness.) HARDENED AND TEMPERED SPRING STEEL STRIP – A medium or high carbon quality steel strip which has been subjected to the sequence of heating, quenching and tempering. HARDENING – Any process which increases the hardness of a metal. Usually heating and quenching certain iron base alloys from a temperature either within or above the critical temperature range. HARDNESS – Degree to which a metal will resist cutting, abrasion, penetration, bending and stretching. The indicated hardness of metals will differ somewhat with the specific apparatus and technique of measuring. For details concerning the various types of apparatus used in measuring hardness. (See Brinell Hardness, Rockwell Hardness, Vickers Hardness, Scleroscope Hardness.) Tensile Strength also is an indication of hardness. HARD TEMPER – (A) (For Steel see Full Hard Temper.) (B) In brass mill terminology. Hard Temper is four B & S numbers hard or 37.1% reduction. HEAT OF STEEL – The product of a single melting operation in a furnace, starting with the charging of raw materials and ending with the tapping of molten metal and consequently identical in its characteristics. HEAT TREATMENT – Altering the properties of a metal by subjecting it to a sequence of temperature changes, time of retention at specific temperature and rate of cooling therefrom being as important as the temperature itself. Heat treatment usually markedly affects strength, hardness, ductility, malleability, and similar properties of both metals and their alloys. HIGH BRASS – A copper-zinc alloy containing 65% copper and 35% zinc. Possesses high tensile strength. Used for springs, screws, rivets, etc. (See Brass.) HOOKE’S LAW – Stress is proportional to strain in the elastic range. The value of the stress at which a material ceases to obey Hooke’s law is known as the elastic limit. HOT DIP – In steel mill practice, a process whereby ferrous alloy base metals are dipped into molten metal, usually zinc, tin, or terne, for the purpose of fixing a rust resistant coating. HOT SHORT – Brittleness in hot metal. HOT TOP – (See Sinkhead.) HOT WORKING – Plastic deformation of metal at a temperature sufficiently high not to create strain hardening. The lower limit of temperature for this process is the recrystallization temperature. HYDROGEN EMBRITTLEMENT – (1) Brittleness of metal, resulting from the occlusion of hydrogen (usually as a by-product of pickling or by co-deposition in electroplating. (2) A condition of low ductility resulting from hydrogen absorption and internal pressure developed subsequently. Electrolytic copper exhibits similar results when exposed to reducing atmosphere at elevated temperatures. HYPEREUTECTOID STEEL – A steel having more than the eutectoid percentage of carbon. (See Eutectoid Steel.) HYPOEUTECTOID STEEL – Steel with less than the eutectoid percentage of carbon. (See Eutectoid Steel.) IMPACT TEST – Test designed to determine the resistance of metal to breakage by impact, usually by concentrating the applied stress to a notched specimen. 99 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 100 DEFINITIONS (continued) INCLUSIONS – Particles of impurities (usually oxides, sulfides, silicates, etc.) that are held mechanically or are formed during the solidification or by subsequent reaction within the solid metal. INDENTATION HARDNESS – The resistance of a material to indentation. This is the usual type of hardness test, in which a pointed or rounded indenter is pressed into a surface under a substantially static load. INDUCTION HARDENING – A process of hardening a ferrous alloy by heating it above the transformation range by means of electrical induction, and then cooling as required. INDUCTION HEATING – A process of heating by electrical induction. INGOT– A casting for subsequent rolling or forging. INHIBITOR – A substance which retards some specific chemical reaction. Pickling inhibitors retard the dissolution of metal without hindering the removal of scale from steel. INTERLEAVING – The placing of a sheet of paper between two adjacent layers of metal to facilitate handling and shearing of rectangular sheets, or to prevent sticking or scratching. INTERMEDIATE ANNEALING – An annealing treatment given to wrought metals following cold work hardening for the purpose of softening prior to further cold working. (See Process Annealing.) INTERRUPTED AGING – The aging of an alloy at two or more temperatures by steps, and cooling to room temperature after each step. Compare with progressive aging. IRON – (Chemical symbol Fe.) – Element No. 26 of the periodic system; Atomic weight 55.85. A magnetic silver-white metal of high tensile strength, ductile and malleable. Melting point of pure iron about 27950 F. Chemically iron is chiefly base forming. The principal forms of commercial iron are steel, cast iron and wrought iron. IRONING – Thinning the walls of deep drawn articles by reducing the clearance between punch and die. ISOTHERMAL ANNEALING – A process in which a ferrous alloy is heated to produce a structure partly or wholly austenitic, and is then cooled to and held at a temperature that causes transformation of the austenite to a relatively soft ferrite-carbide aggregate. JIG SAW STEEL – Hardened, tempered and bright polished with round edges. Carbon content .85. Range of sizes .039 to .393 in width and .016 to .039 in thickness. KILLED STEEL – The term “killed” indicates that the steel has been sufficiently deoxidized to quiet the molten metal when poured into the ingot mold. The general practice is to use aluminum ferrosilicon or manganese as deoxidizing agents. A properly killed steel is more uniform as to analysis and is comparatively free from aging. However, for the same carbon and manganese content Killed Steel is harder than Rimmed Steel. In general all steels above 0.25% carbon are killed, also all forging grades, structural steels from 0.15% to 0.25% carbon and some special steels in the low carbon range. Most steels below 0.15% carbon are rimmed steel. LAMINATIONS – A defect appearing in sheets or strips as a segregation or in layers. To become divided, caused by gas pockets in the ingot. (See Cold Shut.) LADLE ANALYSIS – A term applied to the chemical analysis representative of a heat of steel as reported by the producer. It is determined by analyzing a test ingot sample obtained during the pouring of the steel from a ladle. LAP – A surface defect appearing as a seam, caused by folding over hot metal, fins or sharp corners and then rolling or forging them into the surface, but not welding them. LAP-WELD – A term applied to a weld formed by lapping two pieces of metal and then pressing or hammering, and applied particularly to the longitudinal joint produced by a welding process for tubes or pipe, in which the edges of the skelp are beveled or scarfed so that when they are overlapped they can be welded together. LATTICE – Space lattice. Lattice lines and lattice planes are lines and planes chosen so as to pass through collinear lattice points, and noncollinear lattice points, respectively. LEAD ANNEALING – (See Bath Annealing.) LEVELING – Flattening rolled metal sheet or strip. (See Roller and Stretcher Leveling.) LIGHT METALS – Metals and alloys that have a low specific gravity, such as beryllium, magnesium and aluminum. LITHOGRAPHIC SHEET ALUMINUM – Sheet having a superior surface on one side with respect to freedom from surface imperfections and supplied with a maximum degree of flatness, for use as a plate in offset printing. LONG TERNE – A term applying to steel sheets that have been terne coated (Lead and Tin) by immersion in a bath of Terne Metal. (See Terne Plate.) LOW BRASS – 80% Cu. – A Copper-Zinc alloy containing 20% zinc. Is a light golden color, very ductile, suitable for cupping, drawing, forming, etc. Because of its good strength and corrosion resistance it is used for flexible metal hose, metal bellows, etc. LOW CARBON STEELS – Contain from 0.10 to 0.30% carbon and less than 0.60% manganese. (The product of Basic Oxygen, Bessemer, Open Hearth or Electric Processes.) 100 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 101 DEFINITIONS (continued) LUDER’S LINES – (Steel) – (Characteristic of No. 5 Temper – Not a defect in No. 5 dead soft temper.) Long vein-like marks appearing on the surface of certain metals, in the direction of the maximum shear stress, when the metal is subjected to deformation beyond the yield point. Also called stretcher strains, similar occurrence in certain aluminum alloys, etc. (See Stretcher Strains.) LUSTER FINISH – Refer to FINISHES. M B GRAOE – A term applied to Open - Hearth steel wire in the .45/.75 carbon range either hard drawn or oil tempered. Oil tempered wire of M B and W M B types are the most widely used of all spring wires. Oil tempered wire is more suitable to precision forming and casting operations than hard drawn wire, because of close control of tensile strength and superior straightness. NOTE – M B, H B and extra H B designate Basic Open-Hearth steels, while W M B, W H B and extra W H B designate Acid Open-Hearth Steels. The chemical composition (see Analysis Page 144) and the mechanical properties are the same for both basic and acid steel. MACROETCH TEST – Consists of immersing a carefully prepared section of the steel in hot acid and of examining the etched surface to evaluate the soundness and homogeneity of the product being tested. MACROGRAPH – A photographic reproduction of any object that has not been magnified more than ten times. MACROSCOPIC – Visible either with the naked eye or under low magnification (as great as about ten diameters). MACROSTRUCTURE – The structure of metal as revealed by macroscopic examination. MALLEABILITY – The property that determines the ease of deforming a metal when the metal is subjected to rolling or hammering. The more malleable metals can be hammered or rolled into thin sheet more easily than others. MALLEABILIZING – A process of annealing white cast iron in such a way that the combined carbon is wholly or partly transformed to graphitic or free carbon or, in some instances, part of the carbon is removed completely. MANGANESE – (Chemical symbol Mn.) – Element No. 25 of the periodic system; atomic weight 54.93. Lustrous, reddish-white metal of hard brittle and, therefore, non-malleable character. The metal is used in large quantities in the form of Spiegel and Ferromanganese for steel manufacture as well as in manganese and many copper-base alloys. Its principal function is as an alloy in steel making: (1) It is ferrite-strengthening and carbide forming element. It increases hardenability inexpensively, with a tendency toward embrittlement when too high carbon and too high manganese accompany each other. (2) It counteracts brittleness from sulfur. MARTENSITE – A distinctive needlelike structure existing in steel as a transition stage in the transformation of austenite. It is the hardest constituent of steel of eutectoid composition. It is produced by rapid cooling from quenching temperature and is the chief constituent of hardened carbon tool steels. Martensite is magnetic. MartINSite® – is a trade name for low carbon alloy free sheet steel. MATRIX – The principal phase in which another constituent is embedded. MATT OR MATTE FINISH – (Steel) – Not as smooth as normal mill finish. Produced by etched or mechanically roughened finishing rolls. MECHANICAL PROPERTIES – Those properties of a material that reveal the elastic and inelastic reaction when force is applied, or that involve the relationship between stress and strain; for example, the modulus of elasticity, tensile strength and fatigue limit. These properties have often been designated as “physical properties,” but the term “mechanical properties” is much to be preferred. The mechanical properties of steel are dependent on its microstructure. (See Physical Properties.) MECHANICAL SPRING – Any spring produced by cold forming from any material with or without subsequent heat treatment. MECHANICAL WORKING – Plastic deformation or other physical change to which metal is subjected, by rolling, hammering, drawing, etc. to change its shape, properties or structure. MEDIUM – CARBON STEEL – Contains from 0.30% to 0.60% carbon and less than 1.00% manganese. May be made by any of the standard processes. MELTING RANGE – The range of temperature in which an alloy melts; that is the range between solidus and liquidus temperatures. METALLOGRAPHY – The science concerning the constituents and structure of metals and alloys as revealed by the microscope. METALLOID – (A) Element intermediate in lustre and conductivity between the true metals and nonmetals. Arsenic, antimony, boron, tellurium, and selenium, etc., are generally considered metalloids; frequently one allotropic modification of an element will be non-metallic, another metalloid in character. Obviously, no hard and fast line can be drawn. (B) In steel metallurgy, metalloid has a specialized, even if erroneous, meaning; it covers elements commonly present in simple steel; carbon, manganese, phosphorus, silicon and sulfur. METAL SPRAYING – A process for applying a coating of metal to an object. The metal, usually in the form of wire, is melted by an oxyhydrogen or oxyacetylene blast or by an electric arc and is projected at high speed by gas pressure against the object being coated. 101 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 102 DEFINITIONS (continued) MICROSTRUCTURE – The structure of polished and etched metal and alloy specimens as revealed by the microscope. MILL EDGE – The edge of strip, sheet or plate in the as roiled state. Unsheared. MILL FINISH – A surface finish produced on sheet and plate. Characteristic of the ground finish used on the rolls in fabrication. MODULUS OF ELASTICITY – (Tension) – Force which would be required to stretch a substance to double its normal length, on the assumption that it would remain perfectly elastic, i.e., obey Hooke’s Law throughout the test. The ratio of stress to strain within the perfectly elastic range. MODULUS OF RIGIDITY – Of a material suffering shear, the ratio of the intensity of the shear stress across the section to the shear strain, i.e., to the angle of distortion in radians; expressed in pounds or tons per square inch. MOLD – A form of cavity into which molten metal is poured to produce a desired shape. MOLYBDENUM – (Chemical symbol Mo.) – Element No. 42 of the periodic system; atomic weight 95.95. Hard, tough metal of grayish-white color, becoming very ductile and malleable when properly treated at high temperatures; melting point 47480 F., boiling point about 66000 F., specific gravity 10.2. Pure molybdenum can best be obtained as a black powder, by reduction of molybdenum trioxide or ammonium molybdate with hydrogen. From this powder, ductile sheet and wire are made by powder metallurgy techniques; these are used in radio and related work. Its principal functions as an alloy in steel making: (1) Raises grain-coarsening temperature of austenite. (2) Deepens hardening. (3) Counteracts tendency toward temper brittleness. (4) Raises hot and creep strength, red hardness. (5) Enhances corrosion resistance in stainless steel. (6) Forms abrasion-resisting particles. MUNTZ METAL – (A Refractory Alloy) – Alpha-beta brass, 60% copper and 40% zinc. Stronger than alpha-brass and used for castings and hot-worked (rolled, stamped, or extruded) products. High strength brasses are developed from this by adding other elements. MUSIC WIRE – A polished high tensile strength cold drawn wire with higher tensile strength and higher torsional strength than any other material available. These high mechanical properties are obtained by a combination of the high carbon content, the patenting treatment and by many continuous passes through drawing dies. The high toughness characteristic of this material is obtained by the patenting. Such wire is purchased according to tensile strength, not hardness. NATURAL AGING – Spontaneous aging of a supersaturated solid solution at room temperature. NEEDLE CUTTER STEEL – Usually supplied quarter hard rolled, extra precision rolled with sheared edges. Carbon content 1.25 – Chromium .15. Usually supplied in a 2” width from .002 to .035. Used for cutting the eyes of needle and milling the latch in a latch needle. NETWORK STRUCTURE – A structure in which the crystals of one constituent are surrounded by envelopes of another constituent which gives a network appearance to an etched test specimen. NICKEL – (Chemical symbol Ni.) – Element No. 28 of the periodic system; atomic weight 58.69. Silvery white, slightly magnetic metal, of medium hardness and high degree of ductility and malleability and resistance to chemical and atmospheric corrosion; melting point 26510 F.; boiling point about 52500 F., specific gravity 8.90. Used for electroplating. Used as an alloying agent, it is of great importance in iron-base alloys in stainless steels and in copper-base alloys such as Cupro-Nickel, as well as in nickel-base alloys such as Monel Metal. Its principal functions as an alloy in steel making: (1) Strengthens unquenched or annealed steels. (2) Toughens pearlitic-ferritic steels (especially at low temperature). (3) Renders high-chromium iron alloys austenitic. NICKEL SILVER – Copper base alloys that contain 10-45% Zn. and 5-30% Ni. NICKEL STEEL – Steel containing nickel as an alloying element. Varying amounts are added to increase the strength in the normalized condition to enable hardening to be performed in oil or air instead of water. NIOBIUM – (Chemical symbol Nb.) – Element No. 41 of the periodic system. (See Columbium.) NITRIDING – Process of surface hardening certain types of steel by heating in ammonia gas at about 935 - 1000o F., the increase in hardness being the result of surface nitride formation. Certain alloying constituents, principal among them being aluminum, greatly facilitate the hardening reaction. In general, the depth of the case is less than with carburizing. NITRIDING STEEL – Steel which is particularly suited for the nitriding process, that is, it will form a very hard and adherent surface upon proper nitriding (heating in a partially dissociated atmosphere of ammonia gas). Composition usually .20 -.40 carbon, .90 - 1.50 chromium, .15 -1.00 molybdenum, and .85-1.20% aluminum. NON-FERROUS METALS – Metals or alloys that are free of iron or comparatively so. NON-METALLIC INCLUSIONS – Impurities (commonly oxides), sulphides, silicates or similar substances held in metals mechanically during solidification or formed by reactions in the solid state. NON-REFRACTORY ALLOY – A term opposed to refractory alloy. (See Refractory Alloy.) A non-refractory alloy has malleability, that is, ease of flattening when subjected to rolling or hammering. NON-SCALLOPING QUALITY STRIP STEEL – Strip steel ordered or sold on the basis of absence of uneveness, or ears, on the edges of the steel, when subjected to deep drawing. 102 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 103 DEFINITIONS (continued) NORMALIZING – A heat treatment applied to steel. Involves heating above the critical range followed by cooling in still air. Is performed to refine the crystal structure and eliminate internal stress. NUMBER AS PERTAINING TO EDGE – (See Edge.) NUMBER AS PERTAINING TO HARDNESS – In copper base alloys industry; temper is referred to as so many numbers hard, i.e. Yellow Brass Half Hard is termed 2 numbers hard. This term is derived from terminology used on the mill floor whereby temper or hardness is imparted by cold working and classified as to hardness by the number of Brown & Sharpe gages away from the soft or as-annealed state. NUMBER AS PERTAINING TO TEMPER – (See Temper.) OIL HARDENING – A process of hardening a ferrous alloy of suitable composition by heating within or above the transformation range and quenching in oil. OIL-HARDENING STEEL – Steel adaptable to hardening by heat treatment and quenching in oil. OIL STAIN ALUMINUM – Stain produced by the incomplete burning of the lubricants on the surface of the sheet. Rolling subsequent to staining will change color from darker browns to lighter browns down to white. OLSEN (DUCTILITY) TEST – A method of measuring the ductility and drawing properties of strip or sheet metal which involves determination of the width and depth of impression. The test simulating a deep drawing operation is made by a standard steel ball under pressure, continuing until the cup formed from the metal sample fractures. Readings are in thousandths of an inch. This test is sometimes used to detect stretcher straining and indicates the surface finish after drawing, similar to the Erichsen ductility test. OPEN-HEARTH PROCESS – Process of making steel by heating the metal in the hearth of a regenerative furnace. In the basic open-hearth steel process, the lining of the hearth is basic, usually magnesite; whereas in the acid open-hearth steel process, an acid material, silica, is used as the furnace lining and pig iron, extremely low in phosphorous (less than 0.04%), is the raw material charged in. OPEN SURFACE – Rough surface on black plate, sheet or strip, resulting from imperfections in the original steel bars from which the plate was rolled. ORANGE PEEL – (effect) – A surface roughening (defect) encountered in forming products from metal stock that has a coarse grain size. It is due to uneven flow or to the appearance of the overly large grains usually the result of annealing at too high a temperature. Also referred to as “pebbles” and “alligator skin.” ORE – A mineral from which metal is (or may be) extracted. ORIENTATION – (crystal) – Arrangement of certain crystal axes or crystal planes in a polycrystalline aggregate with respect to a given direction or plane. If there is any tendency for one arrangement to predominate, it is known as the preferred orientation; in the absence of any such preference, random orientation exists. OSCILLATED WOUND OR SCROLL WOUND – A method of even winding metal strip or wire on to a reel or mandrel wherein the strands are uniformly over-lapped. Sometimes termed “stagger wound” or “vibrated wound.” The opposite of ribbon wound. OVERAGING – Aging under conditions of time and temperature greater than those required to obtain maximum strength. OXIDATION – The addition of oxygen to a compound. Exposure to atmosphere sometimes results in oxidation of the exposed surface, hence a staining or discoloration. This effect is increased with temperature increase. OXIDE – Compound of oxygen with another element. OXYGEN LANCE – A length of pipe used to convey oxygen onto a bath of molten metal. PACK ROLLING – Rolling two or more pieces of thin sheet at the same time, a method usually practiced in rolling sheet into thin foil. PASS – A term indicating the process of passing metal through a rolling mill. PATENTING – Treatment of steel, usually in wire form, in which the metal is gradually heated to about 18300 F., with subsequent cooling, usually in air, in a bath of molten lead, or in a fused salt mixture held between 8000 F., and 10500 F. PATENT LEVELING – (See Stretcher Leveling.) PATTERNED OR EMBOSSED SHEET – A sheet product on which a raised or indented pattern has been impressed on either one or both surfaces by the use of rolls. PEARLITE – Lamellar structure resembling mother of pearl. A compound of iron and carbon occurring in steel as a result of the transformation of austenite into aggregations of ferrite and iron carbide. PERMALLOY – Nickel alloys containing about 20 to 60% Fe, used for their high magnetic permeability and electrical resistivity. PERMANENT SET – Non-elastic or plastic, deformation of metal under stress, after passing the elastic limit. 103 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 104 DEFINITIONS (continued) PHOSPHOR BRONZE – Copper base alloys, with 3.5 to 10% of tin, to which has been added in the molten state phosphorus in varying amounts of less than 1% for deoxidizing and strengthening purposes. Because of excellent toughness, strength, fine grain, resistance to fatigue and wear, and chemical resistance, these alloys find general use as springs and in making fittings. It has corrosion resisting properties comparable to copper. PHOSPHOR BRONZE STRIP – A copper-base alloy containing up to 10% tin, which has been deoxidized with phosphorus in varying amounts of less than 1% (see Phosphor Bronze). Temper is imparted by cold rolling, resulting in greater tensile strength and hardness than in most copper-base alloys or either of its alloying elements copper or tin. The various tempers from “One Number Hard” to “Ten Numbers Hard” are classified in hardness by the number of B & S Gages reduction in dimension from the previous soft or as-annealed state (See Brown & Sharpe Gages). Phosphor Bronze is not heat treatable for purposes of hardness development. It does not withstand elevated temperatures very well and should not be used in service above 2250 F., even after stress relieving treatment at 3250 to 3500 F. It has excellent electrical properties, corrosion resistant comparable to copper; great toughness and resistance to fatigue. Rated good for soft soldering, silver alloy brazing, oxyacetylene, carbon arc and resistance welding. PHOSPHORUS – (Chemical symbol P) – Element No. 15 of the periodic system; atomic weight 30.98. Non-metallic element occurring in at least three allotropic forms; melting point 1110 F.; boiling point 5360 F.; specific gravity 1.82. In steels it is usually undesirable with limits set in most specifications. However, it is specified as an alloy in steel to prevent the sticking of light-gage sheets; to a degree it strengthens low carbon steel; increases resistance to corrosion, and improves machinability in free-cutting steels. In the manufacture of Phosphor Bronze it is used as a deoxidizing agent. (See Deoxidizing.) PHOTOMICROGRAPH – A photographic reproduction of any object magnified more than ten diameters. The term micrograph may be used. PHYSICAL PROPERTIES – Those properties familiarly discussed in physics, exclusive of those described under mechanical properties; for example, density, electrical conductivity, co-efficient of thermal expansion. This term often has been used to describe mechanical properties, but this usage is not recommended. (See Mechanical Properties.) PICKLING – The process of chemically removing oxides and scale from the surface of a metal by the action of water solutions of inorganic acids. PICKLING PATCH – A defect in tin plate, galvanized or terne plated steel due to faulty pickling, leaving areas from which the oxide has not been completely removed. PIG IRON – Iron produced by reduction of iron ore in a blast furnace. Pig iron contains approximately 92% iron and about 3.5% carbon. Balance largely silicone and manganese with small percentages of phosphorus, sulphur, and other impurities. PINCH PASS TEMPER – (See Soft Skin Rolled Temper.) – See Temper Rolling. PINCHERS – Long fern like creases usually diagonal to the direction of rolling. PINHOLES – Microscopic imperfections of the coatings, that is, microscopic bare spots, also microscopic holes penetrating through a layer or thickness of light gage metal. PIPE – (Defect) – Contraction cavity, essentially cone-like in shape, which occurs in the approximate center, at the top and reaching down into a casting; caused by the shrinkage of cast metal. PIT – (Defect) –- A sharp depression in the surface of the metal. PLANIMETRIC METHOD – A method of measuring grain size, in which the grains within a definite area are counted. PLASTIC DEFORMATION – Permanent distortion of a material under the action of applied stresses. PLASTICITY – The ability of a metal to be deformed extensively without rupture. PLATING – A thin coating of metal laid on another metal. Refer to Electroplating, Galvanizing, Tinning and Tinplating. POLISHED SURFACE – (Buffed Surface) – The finish obtained by buffing with rouge or similar fine abrasive, resulting in a high gloss or polish. POLYMORPHISM – The ability of a material to exist in more than one crystallographic structure. Numerous metals change in crystallographic structure at transformation temperatures during heating or cooling. If the change is reversible, it is allotropy. The allotropy of iron, particularly the changes between the alpha body-centered and the gamma face centered form, is of fundamental importance in the hardening of steel. POT – A vessel for holding molten metal. Also used to refer to the electrolytic reduction cell employed in winning certain metals, such as aluminum, from a fused electrolyte. POT ANNEALING – Is the same as box annealing. POURING – The transfer of molten metal from the ladle into ingot molds or other types of molds; for example, in castings. POWDER METALLURGY – Powd met. The art of producing metal powders and of utilizing metal powders for the production of massive materials and shaped objects. 104 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 105 DEFINITIONS (continued) PRECIPITATION HARDENING – A process of hardening an alloy in which a constituent precipitates from a supersaturated solid solution. (See also Age Hardening and Aging.) PRECIPITATION HEAT TREATMENT – Nonfer met. Any of the various aging treatments conducted at elevated temperatures to improve certain of the mechanical properties through precipitation from solid solution. See artificial aging, interrupted aging, and progressive aging. PREHEATING – (1) A general term used to describe heating applied as a preliminary to some further thermal or mechanical treatment. (2) A term applied specifically to tool steel to describe a process in which the steel is heated slowly and uniformly to a temperature below the hardening temperature and is then transferred to a furnace in which the temperature is substantially above the preheating temperature. (3) Nonfer. met. – Heating a metal to a relatively high temperature for a relatively long time in order to change the structure before working. Ingots are homogenized by preheating. PRIMES – Metal products, such as sheet and plate, of the highest quality and free from visible surface defects. PROCESS ANNEALING – In the sheet and wire industries, a process by which a ferrous alloy is heated to a temperature close to, but below, the lower limit of the transformation range and is subsequently cooled. This process is applied in order to soften the alloy for further cold working. PROGRESSIVE AGING – An aging process in which the temperature of the alloy is continuously increased during the aging cycle. The temperature may be increased in steps or by any other progressive method. Compare with interrupted aging. PROPORTIONAL LIMIT – The greatest stress that the material is capable of sustaining without a deviation from the law of proportionality of stress to strain (Hooke’s Law). PUNCH – The movable part that forces the metal into the die in equipment for sheet drawing, blanking, coining, embossing and the like. PUNCHING – Shearing holes in sheet metal with punch and die. PYROMETER – An instrument of any of various types used for measuring temperatures. QUARTER HARD (No. 3 TEMPER) – (A) In low carbon cold-rolled strip steel, a medium soft temper produced by a limited amount of cold rolling after annealing. (B) In brass mill terminology. Quarter Hard is one B&S number hard or 10.95% reduction. (C) In stainless steel terminology tempers are based on minimum tensile, or yield strength. For Chromium-Nickel grades Quarter Hard Temper is 125,000 T.S., 75,000 Y.S. min. QUENCHING – In the heat treating of metals, the step of cooling metals rapidly in order to obtain desired properties; most commonly accomplished by immersing the metal in oil or water. In the case of most copper base alloys, quenching has no effect other than to hasten cooling. QUENCH HARDENING – (Steel) – A process of hardening a ferrous alloy of suitable composition by heating within or above the transformation range and cooling at a rate sufficient to increase the hardness substantially. The process usually involves the formation of martensite. RADIANT TUBE ANNEALING BOX – (See annealing.) A box which is heated, inside, by means of tubes in which gas is burned; the hot tubes radiate their heat to the covered pile of metal, standing on the base of the box. Usually a protective atmosphere is maintained in the box to protect the metal from oxidation. RADIOGRAPHY – A nondestructive method of internal examination in which metal objects are exposed to a beam of X-ray or gamma radiation. Differences in thickness, density or absorption, caused by internal defects or inclusions, are apparent in the shadow image either on a fluorescent screen or on photographic film placed behind the object. RAGGED EDGES – Edges of Sheet or Strip which are torn, split, cracked, ragged or burred or otherwise disfigured. RECIPROCAL LATTICE – (For a crystal) – A group of points arranged about a center in such a way that the line joining each point to the center is perpendicular to a family of planes in the crystal, and the length of this line is inversely proportional to their interplanar distance. RECOVERY – (1) The removal of residual stresses by localized plastic flow as the result of low temperature annealing operations; performed on cold worked metals without altering the grain structure or strength properties substantially. RECRYSTALLIZATION – A process whereby a distorted grain structure of cold worked metals is replaced by a new, stress-free grain structure as a result of annealing above a specific minimum temperature for a specific time. RED BRASS – 85% Copper – A copper–zinc alloy containing approximately 15% zinc, used for plumbing pipe, hardware, condenser tubes. Because of its color, is used for vanity cases, coins, plaques, badges, etc. It is somewhat stronger than commercial bronze and is hardened more rapidly by cold working. RED SHORTNESS – Brittleness in steel when it is red hot. REFINING TEMPERATURE – A temperature, usually just higher than the transformation range, employed in the heat treatment of steel to refine the structure – in particular, the grain size. 105 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 106 DEFINITIONS (continued) REFLECTOR SHEET – An alclad product containing on one side a surface layer of high-purity aluminum superimposed on a core or base alloy of commercial-purity aluminum or an aluminum – manganese alloy. The high-purity coating imparts good polishing characteristics and the core gives adequate strength and formability. REFRACTORY – A heat-resistant material, usually nonmetallic, which is used for furnace linings and such. REFRACTORY ALLOY – A term applied to those alloys which due to hardness or abrasiveness present relative difficulty in maintaining close dimensional tolerances. REPHOSPHORIZING – (Steel) – A Ladle-chemical treatment consisting of the addition of phosphorus as a work hardening agent when temper rolling black plate or sheet steel resulting in greater hardness and stiffness and with a corresponding loss in ductility. NOTE: – Black Plate in tempers T5 and T6 (R/B range 68/84) are temper rolled from Rephosphorized steel. RESIDUAL STRESS – Macroscopic stresses that are set up within a metal as the result of nonuniform plastic deformation. This deformation may be caused by cold working or by drastic gradients of temperature from quenching or welding. RESIDUALS – “Incidental” or “tramp” elements not named in a specification. These inclusions are usually due to contaminated scrap. RESILIENCE – The tendency of a material to return to its original shape after the removal of a stress that has produced elastic strain. RESISTANCE WELDING – A type of welding process in which the work pieces are heated by the passage of an electric current through the contact. Such processes include spot welding, seam or line welding and percussion welding. Flash and butt welding are sometimes considered as resistance welding processes. RIBBON WOUND – A term applied to a common method of winding strip steel layer upon layer around an arbor or mandrel. RIFFLES – Waviness at the edge of sheet or strip. RIMMED STEEL – Low-carbon steel in which incomplete deoxidation permits the metal to remain liquid at the top of the ingot, resulting in the formation of a bottom and side rim of considerable thickness. The rim is of somewhat purer composition than the original metal poured. If the rimming action is stopped shortly after pouring of the ingot is completed, the metal is known as capped steel. Most steels below 0.15% carbon are rimmed steels. For the same carbon and manganese content rimmed steel is softer than killed steel. RIPPLE – (Defect) – A slight transverse wave or shadow mark appearing at intervals along the piece. ROCKWELL HARDNESS (TEST) – A standard method for measuring the hardness of metals. The hardness is expressed as a number related to the depth of residual penetration of a steel ball or diamond cone (“brale”) after a minor load of 10 kilograms has been applied to hold the penetrator in position. This residual penetration is automatically registered on a dial when the major load is removed from the penetrator. Various dial readings combined with different major loads, give “scales” designated by letters varying from “A” to “H”; the “B” and “C” scales are most commonly in use. ROENTGEN RAYS – (See X-rays.) ROLL FORMING – An operation used in forming sheet. Strips of sheet are passed between rolls of definite settings that bend the sheet progressively into structural members of various contours, sometimes called “molded sections”. ROLLED EDGES – Finished edges, the final contours of which are produced by side or edging rolls. The edge contours most commonly used are square corners, rounded corners and rounded edge. ROLLED IN SCALE – A surface defect consisting of scale partially rolled into the surface of the sheet. ROLLER LEVELING – Passing sheet or strip metal through a series of staggered small rolls so as to flatten the metal. This method is relatively ineffective in removing defects such as buckles, wavy edges, corrugations, twists, etc., or from steel in the higher hardness ranges. ROLLING – A term applied to the operation of shaping and reducing metal in thickness by passing it between rolls which compress, shape and lengthen it following the roll pattern. ROLLING DIRECTION – (In rolled metal) – The direction, in the plane of the sheet, perpendicular to the axes of the rolls during rolling. ROLLING MILLS – Equipment used for rolling down metal to a smaller size or to a given shape employing sets of rolls the contours of which determine or fashion the product into numerous, intermediate and final shapes, e.g., blooms, slabs, rails, bars, rods, sections, plates, sheets and strip. ROTARY SHEAR – (Slitting Machine) – A cutting machine with sharpened circular blades or disc-like cutters used for trimming edges and slitting sheet and foil. NOTE – cutter discs are also employed in producing circles from flat sheets but with differently designed machines. RULE DIE STEEL – A hardened and tempered medium high carbon spring steel strip sufficiently low in hardness to take moderately sharp bends without fracture, intended for manufacture into rule dies for the purpose of cutting or stamping fabrics, paper, cardboard, plastics, and metal foil into desired shape. 106 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 107 DEFINITIONS (continued) SAE – Abbreviation for Society of Automotive Engineers. This organization has specified common and alloy steels and copper base alloys in accordance with a numerical index system allowing approximation of the composition of the metal. The last two digits always indicate the carbon content, usually within 0.05%. (See AISI-SAE specifications.) SALT SPRAY TEST – An accelerated corrosion test in which the metal specimens are exposed to a fine mist of salt water solution either continuously or intermittently. SATIN FINISH – (See Scratch Brushed Finish.) SCAB – (scabby) – A blemish caused on a casting by eruption of gas from the mold face, or by uneven mold surfaces; or occurring where the skin from a blowhole has partly burned away and is not welded. SCALE – (Refer to “Scaling”.) SCALELESS BLUE – (See “Black Oil Tempered Spring Steel”.) SCALING – (1) Oxidation of metal due to heat, resulting in relatively heavy surface layers of oxide. (2) Removal of scale from metal. SCALLOP – (See Ear.) SCALPING – Machining the surface layers from ingots, billets and slabs before fabrication. SCARFING – Cutting surface areas of metal objects, ordinarily by using a gas torch. The operation permits surface defects to be cut from ingots, billets, or the edges of plate that is to be beveled for butt welding. (See chipping.) SCLEROSCOPE HARDNESS (TEST) – A method for measuring the hardness of metals; a diamondpointed hammer drops from a fixed distance through a tube onto the smoothed metal surface and the rebound measured. The scleroscope hardness value is empirically taken from the rebound distance, with a specified high-carbon steel as 100. SCRAP – Material unsuitable for direct use but usable for reprocessing by remelting. SCRATCH BRUSHED FINISH – Finish obtained by mechanically brushing the surface with wire bristle brushes, by buffing with greaseless compound or by cold rolling with wire bristled rolls on scratch etched finish. SEAM – (A defect.) On the surface of metal a crack that has been closed but not welded; usually produced by some defect either in casting or in working, such as blowholes that have become oxidized or folds and laps that have been formed during working. Similar to cold shut and laminations. SEAM WELDING – An electric-resistance type of welding process, in which the lapped sheet is passed between electrodes of the roller type while a series of overlapping spot welds is made by the intermittent application of electric current. SECONDS – The designation given to sheet or strip that has imperfections in moderate degree or extent, which may be classified in two general groups – imperfections in the base material, or other manufacturing defects. This term not used in connection with non-ferrous alloys. SEGMENT STEEL – Used for laminated piston rings. Carbon content about .70%. Hardened and blue tempered with round edges. Hardness usually Rockwells 30 N 68 to 71, widths vary from .058 to .163 and thicknesses are .020, .024 and .030. SEGREGATION – In an alloy, concentration of alloying elements at specific regions, usually as a result of the primary crystallization of one phase with the subsequent concentration of other elements in the remaining liquid. SELF-HARDENING STEEL – A steel containing sufficient carbon or alloying element, or both, to form martensite either through air hardening or, as in welding and induction hardening, through rapid removal of heat from a locally heated portion by conduction into the surrounding cold metal. (See also air-hardening steel.) SEMI-FINISHED STEEL – Steel in the form of billets, blooms, etc., requiring further working before completion into finished steel ready for marketing. SEMI-KILLED STEEL – Steel incompletely deoxidized, to permit evolution of sufficient carbon monoxide to offset solidification shrinkage. SEMI-STEEL – Cast iron (not steel) of high quality, obtained by using a large percentage of steel scrap with the pig iron. SHEAR – A type of cutting operation in which the metal object is cut by means of a moving blade and fixed edge or by a pair of moving blades that may be either flat or curved. SHEAR CRACK – A diagonal, transgranular crack caused by shear stresses. SHIM – A thin flat hard metal strip produced to close tolerances; used primarily for tool, die and machine alignment purposes. In steel there are four general types: (1) Low Carbon Rockwell B 80/100; (2) Hard Rolled High Carbon Rockwell C 28/33. (3) Hardened and Tempered Spring Steel Rockwell C 44/51; (4) Austenitic Stainless Steel Rockwell C 35/45. Brass shim of commercial quality is also used and most generally specified is 2 Nos. Hard but may be 4 Nos. Hard. SHORE HARDNESS TEST – (See scleroscope hardness.) 107 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 108 DEFINITIONS (continued) SHORT – Brittle. SHORT TERNE – A term applying to terne coated (Lead and Tin) sheets with reference to Base Box sizes (14” x 20”) Refer to terne plate. SHOT BLASTING – Cleaning surface of metal by air blast, using metal shot as an abrasive. SHRINKAGE CAVITY – A void left in cast metals as a result of solidification shrinkage and the progressive freezing of metal towards the center. SILICON – (Chemical Symbol Si.) – Element No. 14 of the periodic system; atomic weight 28.06. Extremely common element, the major component of all rocks and sands; its chemical reactions, however, are those of a metalloid. Used in metallurgy as a deoxidizing scavenger. Silicon is present, to some extent, in all steels, and is deliberately added to the extent of approximately 4% for electric sheets, extensively used in alternating current magnetic circuits. Silicon cannot be electrodeposited. SILICON STEEL – Steel usually made in the basic open-hearth or electric furnace, with about 0.50 5.% silicon, other elements being usually kept as low as possible. Because of high electrical resistance and low hysteresis loss, silicon sheet and strip are standard in electric magnet manufacture. SILKY FRACTURE – A steel fracture that has a very smooth fine grain or silky appearance. SILVER SOLDERS – Alloys of silver, copper, zinc and other metals, melting between 650 and 8750 C. used for making strong yet moderately ductile joints that resist corrosion. SINGLE-ACTION PRESS – A forming press that operates with a single function, such as moving a punch into a die with no simultaneous action for holding down the blank or ejecting the formed work. SINKER STEEL – Used for making sinkers in hosiery making machinery. Supplied both hardened and tempered and cold rolled and annealed. Usually extra precision rolled and extra flat. Carbon content about 1.25. SINKHEAD OR HOT TOP – A reservoir insulated to retain heat and to hold excess molten metal on top of an ingot mold, in order to feed the shrinkage of the ingot. Also called “shrink head” or “feeder head.” SINTERED CARBIDE – Composite, containing carbides of extremely refractory metals, such as tungsten, tantalum, titanium, etc., cemented together by a relatively low-melting metal, such as cobalt acting as a matrix. SINTERING – Converting powder into a continuous mass by heating to a temperature considerably below fusion, usually after preliminary compacting by pressure. SKELP– A plate of steel or wrought iron from which pipe or tubing is made by rolling the skelp into shape longitudinally and welding or riveting the edges together. SKIN – A thin surface layer that is different from the main mass of a metal object, in composition, structure or other characteristics. SLAB – (See bloom.) SLAG – A product resulting from the action of a flux on the nonmetallic constituents of a processed ore, or on the oxidized metallic constituents that are undesirable. Usually slags consist of combinations of acid oxides with basic oxides, and neutral oxides are added to aid fusibility. SLIT EDGES – The edges of sheet or strip metal resulting from cutting to width by rotary slitters. SLITTING – Cutting sheet or strip metal to width by rotary slitters. SLIVER – (Defect) – Loose metal piece rolled down onto the surface of the metal during the rolling operations. SOAKING – Prolonged heating of a metal at selected temperature. SOFT SKIN ROLLED TEMPER – (No. 4 Temper.) In low carbon-rolled strip steel, soft and ductile. Produced by subjecting annealed strip to a pinch pass or skin rolling (a very light rolling). SOLDER EMBRITTLEMENT – Reduction in ductility of a metal or alloy, associated with local penetration by molten solder along grain boundaries. SOLDERING – Joining metals by fusion of alloys that have relatively low melting points – most commonly, lead-base or tin-base alloys, which are the soft solders. Hard solders are alloys that have silver, copper, or nickel bases and use of these alloys with melting points higher than 8000 F. is generally termed brazing. SOLUTION HEAT TREATMENT– A process in which an alloy is heated to a suitable temperature, is held at this temperature long enough to allow a certain constituent to enter into solid solution and is then cooled rapidly to hold the constituent in solution. The metal is left in a supersaturated, unstable state and may subsequently exhibit age-hardening. SORBITE – Structure of steel, resulting from the tempering of martensite. In a truly sorbitic structure, the cementite is completely dispersed in the matrix. The trend is to call this structure tempered martensite. 108 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 109 DEFINITIONS (continued) SORBITIC PEARLITE – Structure of steel resulting, on cooling under the proper conditions, from the decomposition of austenite; has a fine, lamellar appearance. SPACE-CENTERED – (concerning space lattices) – Body-centered. SPACE LATTICE – (crystal) – A system of equivalent points formed by the intersections of three sets of planes parallel to pairs of principal axes; the space lattice may be thought of as formed by the corners of the unit cells. SPECIFIC GRAVITY – A numerical value representing the weight of a given substance as compared with the weight of an equal volume of water, for which the specific gravity is taken as 1.0000. SPECTOGRAPH – An optical instrument for determining the presence or concentration of minor metallic constituents in a material by indicating the presence and intensity of specific wave lengths of radiation when the material is thermally or electrically excited. SPECTOGRAPH – (X-rays) – An instrument using an extended surface – a photographic plate or film, or a fluorescent screen – for receiving the X-ray diffraction pattern. SPELTER – (Prime Western Spelter) – A low-grade of Virgin Zinc containing approximately 98% Zinc used in Galvanizing processes. SPHEROIDIZING – Any process of prolonged heating and slow cooling of steel which will convert the carbide content into rounded or spheroid form. SPIEGEL – High-manganese pig iron, containing 15-30% manganese, approximately 5% carbon, and less than 1% silicon, used in the manufacture of steel by the Bessemer, or basic open-hearth process. SPINNING – The procedure of making sheet metal discs into hollow shapes by pressing the metal against a rotating form (spinning chuck) by a tool. SPOT WELDING – An electric-resistance welding process in which the fusion is limited to a small area. The pieces being welded are pressed together between a pair of water-cooled electrodes through which an electrical current is passed during a very short interval so that fusion occurs over a small area at the interface between the pieces. SPRING-BACK – An indicator of elastic stresses, frequently measured as the increase in diameter of a curved strip after removing it from the mandrel about which it was held. The measurement is employed as an indicator of the extent of recovery or relief of residual stresses that has been achieved by the transformation of elastic strain to plastic strain during heating or stress relieving. SPRING STEEL – Steel, normally of the high-carbon or alloy type, used in the manufacture of springs, lending itself to appropriate heat treatment; usually rnade in the open-hearth or electric furnace. SPRING STEEL STRIP – Any of a number of strip steels produced for use in the manufacture of steel springs or where high tensile properties are required marketed in the annealed state, hard rolled or as hardened and tempered strip. SPRING TEMPER – In brass mill terminology, Spring Temper is eight numbers hard or 60.50% reduction. STABILIZING ANNEAL – A treatment applied to austentic stainless steels that contain titanium or columbium. This treatment consists of heating to a temperature below that of a full anneal in order to precipitate the maximum amount of carbon at titanium carbide or columbium carbide. This eliminates precipitation at lower temperatures, which might reduce the resistance of the steel to corrosion. STABILIZING TREATMENT – A thermal treatment designed to precipitate material from solid solution, in order to improve the workability, to decrease the tendency of certain alloys to age-harden at room temperature, or to obtain dimensional stability under service at slightly elevated temperatures. STAINLESS STEEL – Corrosion resistant steel of a wide variety, but always containing a high percentage of chromium. These are highly resistant to corrosion attack by organic acids, weak mineral acids, atmospheric oxidation, etc. STAMPING – A term used to refer to various press forming operations in coining, embossing, blanking, and pressing. STEAM BLUED – (See Bluing.) STEEL – Iron, malleable in at least one range of temperature below its melting point without special heat treatment, substantially free from slag, and containing carbon more than about 0.05% and less than about 2.00%. Other alloying elements may be present in significant quantities, but all steels contain at least small amounts of manganese and silicon, and usually as undesirable constituents, also sulfur and phosphorus. STICKER – Steel sheets or strip adhering. Usually by fusion spots caused by overheating during box annealing. STRAIGHT-CHROME – An iron alloy. A term indicating a group of stainless steels the principal alloying element of which is chromium in varying amounts from 4.00 to 27.00%. STRAIN – Deformation produced on a body by an outside force. (See also Stress and Hooke’s Law.) 109 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 110 DEFINITIONS (continued) STRAIN AGING – Aging induced by cold working. (See aging.) STRAIN HARDENING – An increase in hardness and strength caused by plastic deformation at temperatures lower than the recrystallization range. STRESS – Deforming force to which a body is subjected, or, the resistance which the body offers to deformation by the force. (See also Strain and Hooke’s Law.) STRESS RELIEF – Low temperature annealing for removing internal stresses, such as those resulting in a metal from work hardening or quenching. STRETCH FORMING – A process of forming panels and cowls of large curvature by stretching sheet over a form of the desired shape. This method is more rapid than hammering and beating. STRETCHER LEVELING – (Also termed “patent leveling.”) A method of making metal sheet or strip dead flat by stretching. STRETCHER STRAINS – Long vein-like marks appearing on the surface of certain metals, in the direction of the maximum shear stress, when the metal is subjected to deformation beyond the yield point. Also termed Luders Lines. (Not a defect in No. 5 dead soft temper.) STRIP STEEL – (Cold rolled.) – A flat cold rolled steel product (Other than Flat Wire) 23 15/16” and narrower; under .250” in thickness, which has been cold reduced to desired decimal thickness and temper on single stand, single stand reversing, or tandem cold mills in coil form from coiled hot rolled pickled strip steel. STRUCTURE – The arrangement of parts; in crystals, especially, the shape and dimension of the unit cell, and the number, kinds and positions of the atoms within it. SULFUR – (Chemical Symbol S.) – Element No. 16 of the periodic system; atomic weight 32.06. Nonmetal occurring in a number of allotropic modifications, the most common being a pale yellow brittle solid. In steel most commonly encountered as an undesired contaminant. However, it is frequently deliberately added to cutting stock, to increase machinability. TANDEM MILL – Arrangement of rolling mills, in direct line, allowing the metal to pass from one set of rolIs into the next. TAPPING – Transferring molten metal from melting furnace to ladle. TARNISH – Surface discoloration on a metal, usually from a thin film of oxide or sulfide. TEEMING – Pouring metal into ingot molds. TELESCOPING – Transverse slipping of successive layers of a coil so that the edge of the coil is conical rather than flat. TEMPER – (Met.) – The state of or condition of a metal as to its hardness or toughness produced by either thermal treatment or heat treatment and quench or cold working or a combination of same in order to bring the metal to its specified consistency. Each branch of the metal producing industry has developed its own system of temper designations. In flatrolled products including sheet and strip steel, tin mill products, stainless strip, and copper base alloy strip they are shown as folows: COPPER BASE ALLOYS (Cold Rolled) – B&S Gage Numbers (Note – Hardness is indicated condition while hardness varies with alloy changes). Temper Hardness Annealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Commercially Soft Quarter Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . One Number Hard Half Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Two Numbers Hard Hard Temper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Four Numbers Hard Extra Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Six Numbers Hard Spring Temper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Eight Numbers Hard Extra Spring Temper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ten Numbers Hard SHEET STEEL (Low Carbon Cold Rolled) – Temper Classifications. Temper Rockwell Full Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .070 and thicker B 84 min. .069 and thinner B 90 min. Half Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Approx. R/B 70/85 Quarter Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Approx. R/B 60/75 Soft Commercial Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Approx. R/B 65 max. Drawing Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Approx. R/B 55 max. { STAINLESS STRIP STEEL (Cold Rolled) – Temper Classifications – Type 301. Note – The various stainless strip tempers are based on specified minimum values for tensile strength or yield strength or both. Here at Precision Steel there is on file a complete record of all such detail including chemical analysis on each item in stock. However, because of custom, both distributors and customers alike rely on approximate Rockwell readings for temper classification. To illustrate: 110 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 111 DEFINITIONS (continued) TEMPERS – (Continued) Temper (Type 301) Rockwell Soft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Approx. B 75/85 Quarter Hard . . . . . . . . . . . . . . . . . . . . . . . . Approx. C 25/30 Half Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . Approx. C 30/35 Three Quarter Hard . . . . . . . . . . . . . . . . . . . Approx. C 35/40 Full Hard . . . . . . . . . . . . . . . . . . . . . . . . . . . Approx. C 40/45 Extra Hard (Type 301) . . . . . . . . . . . . . . . . . Approx. C 45 min. Type 430 Soft . . . . . . . . . . . . . . . . . . . . . . . . Approx. B 75/85 Tensile PSI 110,000 Min, 125,000 Min. 150,000 Min. 175,000 Min. 185,000 Min. 200,000 Min. 75/85,000 STRIP STEEL (Low Carbon Cold Rolled) – Temper Classifications. Temper Rockwell No. 1 Full Hard . . . . . . . . . . . . .070 and thicker B 84 min. .069 and thinner B 90 min. No. 2 Half Hard . . . . . . . . . . . . B 70/85 No. 3 Quarter Hard . . . . . . . . . B 60/75 No. 4 Skin Rolled . . . . . . . . . . . B 65 max. No. 5 Dead Soft . . . . . . . . . . . . B 55 max. { Mean Tensile 80,000 80,000 64,000 54,000 48,000 TEMPERED SPRING STEELS (Strip) – Temper indication is to Rockwell Hardness only. TIN MILL PRODUCTS (Steel) Temper Classifications – NOT STANDARDIZED. FOR INFORMATION ONLY. (Not to be confused with the Cold Rolled Strip Steel Temper Numbering System wherein No. 1 Temper indicates Full Hard, while in the TIN MILL Product Numbering System No. 1 Temper indicates a soft condition.) The following Rockwell ranges are approx. only. Temper Number Rockwell – 30 T Scale No. 1 Temper . . . . . . . . . . . . . . . . . . . . . . . . . Aim at 46/52 No. 2 Temper . . . . . . . . . . . . . . . . . . . . . . . . . Aim at 50/56 No. 2 1/2 Temper . . . . . . . . . . . . . . . . . . . . . . Aim at 52/58 No. 3 Temper . . . . . . . . . . . . . . . . . . . . . . . . . Aim at 54/60 No. 4 Temper . . . . . . . . . . . . . . . . . . . . . . . . . Aim at 58/64 *No. 5 Temper . . . . . . . . . . . . . . . . . . . . . . . . . Aim at 62/68 *No. 6 Temper . . . . . . . . . . . . . . . . . . . . . . . . . Aim at 67/73 Rockwell B Scale Aim at 45/53 Aim at 51/59 Aim at 53/62 Aim at 56/66 Aim at 62/71 Aim at 68/77 Aim at 75/84 *Note: Tempers 5 and 6 are temper rolled from rephosphorized steel in order to develop desired hardness and stiffness. The above temper classifications are used principally by producing mills and can manufacturers but are not in general use in the sheet and strip industry. TEMPERED and POLISHED SPRING STEEL STRIP – .90/1.03 carbon range (Also known as clock spring steel.) – This product, while similar to general description under heading of Tempered Spring Steel Strip, is manufactured and processed with great and extreme care exercised in each step of its production. Manufactured from carbon range of .90/1.03 with Rockwell range C 48/51. Clock spring quality has been ground and polished with edges dressed. It is usually supplied dark blue in color and has a wide range of uses, such as coiled and flat mechanical springs, ignition vibrator springs, springs for timing devices, springs for the electric and electronic fields, steel tapes, rules, etc. TEMPERED SPRING STEEL STRIP – Any medium or high carbon (excluding clock spring) strip steel of spring quality which has been hardened and tempered to meet specifications. Where specification calls for blue or straw color, same is accomplished by passing through heat prepared at proper temperature depending on color required. Blue is developed at approximately 6000 F. TEMPERING – (Also termed “drawing.”) A process of reheating quench-hardened or normalized steel to a temperature below the transformation range and then cooling at any rate desired. The primary purpose of tempering is to impart a degree of plasticity or toughness to the steel to alleviate the brittleness of its martensite. TEMPER ROLLING – Subjecting metal sheet or strip to a slight amount of cold rolling following annealing (usually 1/2 to 1-1/2%) to forestall stretcher strains. Also termed “Pinch Pass” or “Skin Rolled.” (Also See Cold Rolling.) TENSILE STRENGTH – (also called ultimate strength) – Breaking strength of a material when subjected to a tensile (stretching) force. Usually measured by placing a standard test piece in the jaws of a tensile machine, gradually separating the jaws, and measuring the stretching force necessary to break the test piece. Tensile strength is commonly expressed as pounds (or tons) per square inch of original cross section. TENSILE TEST– (See Tensile Strength.) TERNARY ALLOY – An alloy that contains three principal elements. TERNE PLATE – Sheet steel, coated with a lead-tin alloy. The percentage of tin is usually kept as low as possible because of its high cost; however, about 15% is normally necessary in order to obtain proper coating of the steel, since pure lead does not alloy with iron and some surface alloying is necessary for proper adhesion. 111 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 112 DEFINITIONS (continued) THERMOCOUPLE – A device for measuring temperatures by the use of two dissimilar metals in contact; the junction of these metals gives rise to a measurable electrical potential with changes in temperature. THICKNESS GAGE OR FEELER STOCK – A hardened and tempered, edged, ground, and polished thin section, high carbon strip steel. Usually 1/2” in width and in thicknesses from .001” to .050” manufactured to extremely close tolerances. It is used primarily for determining measurement of openings by tool and die makers, machinists, and automobile technicians. It is prepared in handy pocket size knifelike holders containing an assembly of various thicknesses. Also prepared in standard 12” lengths with rounded ends and in 10’ and 25’ coils. Universally used in the metal industry. THREE-QUARTER HARD TEMPER – (A) In stainless steel strip tempers are based on a minimum tensile or yield strength. For Chromium-Nickel grades three-quarter hard temper is 175,000 T.S., 135,000 Y.S. min. (B) In Brass mill terminology, this temper is three B&S numbers hard or 29.4% thickness reduction. TIN – (Chemical Symbol Sn.) – Element No. 50 of the periodic system; atomic weight 118.70. Soft silvery white metal of high malleability and ductility, but low tensile strength; melting point 4490 F., boiling point 43840 F., yielding the longest molten-state range for any common metal; specific gravity 7.28. Principal use as a coating on steel in tin plate; also as a constituent in alloys. TINNING – Coating with tin, commonly either by immersion into molten tin or by electrodeposition; also by spraying. TIN PLATE BASE BOX – A Tin Plate Base Box is measured in terms of pounds per Base Box (112 sheets 14” x 20”) a unit peculiar to the tin industry. This corresponds to its area of sheet totaling to 31.360 square inches of any gage and is applied to tin plate weighing from 55 to 275 pounds per base box. To convert to decimal thickness multiply weight per base box by .00011. TIN PLATING – Electroplating metal objects with tin; the object to be coated is made cathode (negative electrode) in an electrolytic bath containing a decomposable tin salt. TITANIUM – (Chemical Symbol Ti.) – Element No. 22 of the periodic system; atomic weight 47.90; melting point about 32700 F., boiling point over 54300 F., specific gravity 4.5. Bright white metal, very malleable and ductile when exceedingly pure. Its principal functions as an alloy in the making of steel (1) Fixes carbon in inert particles (A) reduces martensitic hardness and hardenability in medium chromium steels (B) prevents formation of austenite in high-chromium steels (C) prevents localized depletion of chromium in stainless steel during long heating. Now finding application in its own right because of its high strength and good corrosion resistance. TOLERANCE LIMIT – The permissible deviation from the desired value. TOOL STEEL – Any high carbon or alloy steel capable of being suitably tempered for use in the manufacture of tools. TOUGHNESS – Property of resisting fracture or distortion. Usually measured by impact test, high impact values indicating high toughness. TRACE – Extremely small quantity of an element, usually too small to determine quantitatively. TRANSFORMATION – A constitutional change in a solid metal, e.g., the change from gamma to alpha iron, or the formation of pearlite from austenite. TRANSFORMATION RANGE – Temperature range over which a chemical or metallurgical change takes place. TRANSFORMATION TEMPERATURE – The temperature at which transformation occurs. The term is sometimes used to denote the limiting temperature of a transformation range. TROOSITE – Tempered martensite that etches rapidly, usually appears dark, and is not resolved by the microscope. TROWEL STEEL – Hardened and tempered spring steel .90 to 1.05 carbon content. Ordinary tolerances, but rolled extra flat – Rockwell C 50. Used in the manufacture of plastering trowels. TRUSS SPRING STEEL – Supplied cold rolled and bright annealed. Carbon content about .70 – Manganese .74. Must be formed very severely and must be as free as possible from decarburization. TUKON HARDNESS TEST – A method for determining microhardness by using a Knoop diamond indenter or Vickers square-base pyramid indenter. TUMBLING – Cleaning articles by rotating them in a cylinder with cleaning materials. TUNGSTEN – (Chemical Symbol M.) – Element No. 74 of the periodic system; atomic weight 183.92. Gray metal of high tensile strength, ductile and malleable when specially handled. It is immune to atmospheric influences and most acids, but not to strong alkalies. The metal is used as filament and in thin sheet form in incandescent bulbs and radio tubes. (1) Forms hard abrasion – resistant particles in tool steels. (2) Promotes hardness and strength at elevated temperatures. TUNGSTEN CARBIDE – Compound of tungsten and carbon, of composition varying between WC and W2C; imbedded in a matrix of soft metal; such as cobalt, extensively used for Sintered Carbide Tools. (See Sintered Carbide.) 112 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 113 DEFINITIONS (continued) TWIST– A winding departure from flatness. ULTIMATE STRENGTH – (See Tensile Strength.) UTILITY SHEET ALUMINUM – Mill finish coiled or flat sheet of unspecified composition and properties produced in specific standard sizes and suitable for general building trade usage. UPSETTING – (1) A metal working operation similar to forging. (2) The process of axial flow under axial compression of metal, as in forming heads on rivets by flattening the end of wire. VACUUM DEGASSING – (Refer to Degassing Process.) VANADIUM – (Chemical Symbol V.) – Element No. 23 of the periodic system; atomic weight 50.95. Gray-white, hard metal, unaffected by atmospheric influences or alkalies but soluble in most strong acids; melting point 31190 F., boiling point about 61500 F., specific gravity 5.87. It cannot be electrodeposited. Its principal functions as an alloy in the making of tool steels (1) Elevates coarsening temperature of austenite (promotes fine grain) (2) Increases hardenability (when dissolved) (3) Resists tempering and causes marked secondary hardening. VIBRATED WOUND – (See Oscillated Wound coils.) VIBRATOR REED STEEL – Hardened, tempered and white polished extra precision rolled. Carbon content about 1.00. Steel must withstand great fatigue stresses. VICKERS HARDNESS (TEST) – Standard method for measuring the hardness of metals, particularly those with extremely hard surfaces; the surface is subjected to a standard pressure for a standard length of time by means of a pyramid-shaped diamond. The diagonal of the resulting indention is measured under a microscope and the Vickers Hardness value read from a conversion table. VIRGIN METAL – Metal obtained directly from ore and not used before. WMB, WHB and EXTRA WHB GRADES – Spring steel wires produced from acid open-hearth steels (See notes at MB GRADE). WASTERS – Sheets that have prohibitive defects, for example, seams and buckled plates. Generally fit for remelting purposes only. WATCH MAIN SPRING STEEL – Usually supplied cold rolled and annealed in large widths and cut and hardened by the spring manufacturers. Carbon content about 1.15 and Tungsten .17, extra precision rolled. WATER HARDENING – Process of hardening high carbon steels by quenching in water or brine, after heating. WAVY – Not flat. A slight wave following the direction of rolling and beyond the standard limitation for flatness. WEDGE – A hardwood stick used as a forming tool in spinning. WELDING – A process used to join metals by the application of heat. Fusion welding, which includes gas, arc, and resistance welding, requires that the parent metals be melted. This distinguishes fusion welding from brazing. In pressure welding joining is accomplished by the use of heat and pressure without melting. The parts that are being welded are pressed together and heated simultaneously, so that recrystallization occurs across the interface. WORK HARDENING – Increase in resistance to deformation (i.e. in hardness) produced by cold working. WORKABILITY – The characteristic or group of characteristics that determines the ease of forming a metal into desired shapes. WORMS – (See Stretcher Strains.) WROUGHT IRON – Iron containing only a very small amount of other elements, but containing 1 - 3% by weight of slag in the form of particles elongated in one direction, giving the iron a characteristic grain. Is more rust-resistant than steel and welds more easily. X-RAYS – Light rays, excited usually by the impact of cathode rays on matter, which have wave lengths between about 10 - 6 cm, and 10 - 9 cm; also written X-rays, same as Roentgen rays. YIELD POINT – The load per unit of original cross section at which, in soft steel, a marked increase in deformation occurs without increase in load. YOUNG’S MODULUS – The coefficient of elasticity of stretching. For a stretched wire, Young’s Modulus is the ratio of the stretching force per unit cross-sectional area to the elongation per unit length. The values of Young’s Modulus for metals are of the order 1012 dynes per square cm. (See Modulus of Elasticity.) ZINC – (Chemical Symbol Zn.) – Element No. 30 of the periodic system; atomic weight 65.38. Bluewhite metal; when pure, malleable and ductile even at ordinary temperatures; melting point 7870 F., boiling point 16650 F., specific gravity 7.14. Can be electrodeposited; it is extensively used as a coating for steel (see Galvanizing) and sheet zinc finds many outlets, such as dry batteries, etc. Zinc-base alloys are of great importance in die casting. Its most important alloy is brass. 113 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 114 DEFINITIONS (continued) ZIRCONIUM – (Chemical Symbol Zr.) – Element No. 40 of the periodic system. Atomic weight 91.22. Specific gravity 6.5 and melting point at about 32000 +13000 F. Because of its great affinity for oxygen and combines readily with nitrogen and sulphur it is used as a deoxidizer and scavenger in steel making. It is used as an alloy with nickel for cutting tools and is used in copper alloys. Many of the definitions as shown in this section of the catalog have been printed through the courtesy and permission of “Metals Handbook”– American Society of Metals. “Metals and Alloys Dictionary”– Chemical Publishing Co., Inc. THE METRIC SYSTEM The United States Congress in 1975 passed a law leading to the change over to the Metric System of weights and measures in the United States. Many industries are taking a position of leadership in the conversion to Metrics. We have included in this catalog conversion of standard thickness to the Metric equivalent. We are also showing conversion tables and the most often used formulas for converting inches and pounds to metric millimeters and kilograms. TO CONVERT FROM TO Inch Inch Inch Ounce Mass Pound Mass Square Inches Square Feet Meter (m) Centimeter (cm) Millimeter (mm) Kilogram (kg) Kilogram (kg) Square Centimeters (cm2) Square Meters (m2) 114 MULTIPLY BY .0254 2.54 25.4 .0283 .4536 6.452 .0929 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 115 METRIC CONVERSION TABLES Inches to Millimeters Inch mm Inch mm Inch mm Inch mm .001 .002 .003 .004 .005 .006 .007 .008 .009 .010 .011 .012 .013 .014 .015 .016 .017 .018 .019 .020 .021 .022 .023 .024 .025 .026 .027 .028 .029 .030 .031 .032 .033 .034 .035 .036 .037 .038 .039 .040 .041 .042 .043 .044 .045 .046 .047 .048 .049 .050 .051 .052 .053 .054 .055 .056 .057 .058 .059 .060 0.0254 0.0508 0.0762 0.1016 0.1270 0.1524 0.1778 0.2032 0.2286 0.2540 0.2794 0.3048 0.3302 0.3556 0.3810 0.4064 0.4318 0.4572 0.4826 0.5080 0.5334 0.5588 0.5842 0.6096 0.6350 0.6604 0.6858 0.7112 0.7366 0.7620 0.7874 0.8128 0.8382 0.8636 0.8890 0.9144 0.9398 0.9652 0.9906 1.0160 1.0414 1.0668 1.0922 1.1176 1.1430 1.1684 1.1938 1.2192 1.2446 1.2700 1.2954 1.3208 1.3462 1.3716 1.3970 1.4224 1.4478 1.4732 1.4986 1.5240 .061 .062 .063 .064 .065 .066 .067 .068 .069 .070 .071 .072 .073 .074 .075 .076 .077 .078 .079 .080 .081 .082 .083 .084 .085 .086 .087 .088 .089 .090 .091 .092 .093 .094 .095 .096 .097 .098 .099 .100 .101 .102 .103 .104 .105 .106 .107 .108 .109 .110 .111 .112 .113 .114 .115 .116 .117 .118 .119 .120 1.5494 1.5748 1.6002 1.6256 1.6510 1.6764 1.7018 1.7272 1.7526 1.7780 1.8034 1.8288 1.8542 1.8796 1.9050 1.9304 1.9558 1.9812 2.0066 2.0320 2.0574 2.0828 2.1082 2.1336 2.1590 2.1844 2.2098 2.2352 2.2606 2.2860 2.3114 2.3368 2.3622 2.3876 2.4130 2.4384 2.4638 2.4892 2.5146 2.5400 2.5654 2.5908 2.6162 2.6416 2.6670 2.6924 2.7178 2.7432 2.7686 2.7940 2.8194 2.8448 2.8702 2.8956 2.9210 2.9464 2.9718 2.9972 3.0226 3.0480 .121 .122 .123 .124 .125 .126 .127 .128 .129 .130 .131 .132 .133 .134 .135 .136 .137 .138 .139 .140 .141 .142 .143 .144 .145 .146 .147 .148 .149 .150 .151 .152 .153 .154 .155 .156 .157 .158 .159 .160 .161 .162 .163 .164 .165 .166 .167 .168 .169 .170 .171 .172 .173 .174 .175 .176 .177 .178 .179 .180 3.0734 3.0988 3.1242 3.1496 3.1750 3.2004 3.2258 3.2512 3.2766 3.3020 3.3274 3.3528 3.3782 3.4036 3.4290 3.4544 3.4798 3.5052 3.5306 3.5560 3.5814 3.6068 3.6322 3.6576 3.6830 3.7084 3.7338 3.7592 3.7846 3.8100 3.8354 3.8608 3.8862 3.9116 3.9370 3.9624 3.9878 4.0132 4.0386 4.0640 4.0894 4.1148 4.1402 4.1656 4.1910 4.2164 4.2418 4.2672 4.2926 4.3180 4.3434 4.3688 4.3942 4.4196 4.4450 4.4704 4.4958 4.5212 4.5466 4.5720 .181 .182 .183 .184 .185 .186 .187 .188 .189 .190 .191 .192 .193 .194 .195 .196 .197 .198 .199 .200 .201 .202 .203 .204 .205 .206 .207 .208 .209 .210 .211 .212 .213 .214 .215 .216 .217 .218 .219 .220 .221 .222 .223 .224 .225 .226 .227 .228 .229 .230 .231 .232 .233 .234 .235 .236 .237 .238 .239 .240 4.5974 4.6228 4.6482 4.6736 4.6990 4.7244 4.7498 4.7752 4.8006 4.8260 4.8514 4.8768 4.9022 4.9276 4.9530 4.9784 5.0038 5.0292 5.0546 5.0800 5.1054 5.1308 5.1562 5.1816 5.2070 5.2324 5.2578 5.2832 5.3086 5.3340 5.3594 5.3848 5.4102 5.4356 5.4610 5.4864 5.5118 5.5372 5.5626 5.5880 5.6134 5.6388 5.6642 5.6896 5.7150 5.7404 5.7658 5.7912 5.8166 5.8420 5.8674 5.8928 5.9182 5.9436 5.9690 5.9944 6.0198 6.0452 6.0706 6.0960 115 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 Inch mm Inch mm Inch .241 .242 .243 .244 .245 .246 .247 .248 .249 .250 .251 .252 .253 .254 .255 .256 .257 .258 .259 .260 .261 .262 .263 .264 .265 .266 .267 .268 .269 .270 .271 .272 .273 .274 .275 .276 .277 .278 .279 .280 .281 .282 .283 .284 .285 .286 .287 .288 .289 .290 .291 .292 .293 .294 .295 .296 .297 .298 .299 .300 .301 .302 .303 .304 .305 .306 .307 .308 .309 .310 6.1214 6.1468 6.1722 6.1976 6.2230 6.2484 6.2738 6.2992 6.3246 6.3500 6.3754 6.4008 6.4262 6.4516 6.4770 6.5024 6.5278 6.5532 6.5786 6.6040 6.6294 6.6548 6.6802 6.7056 6.7310 6.7564 6.7818 6.8072 6.8326 6.8580 6.8834 6.9088 6.9342 6.9596 6.9850 7.0104 7.0358 7.0612 7.0866 7.1120 7.1374 7.1628 7.1882 7.2136 7.2390 7.2644 7.2898 7.3152 7.3406 7.3660 7.3914 7.4168 7.4422 7.4676 7.4930 7.5184 7.5438 7.5692 7.5946 7.6200 7.6454 7.6708 7.6962 7.7216 7.7470 7.7724 7.7978 7.8232 7.8486 7.8740 .311 .312 .313 .314 .315 .316 .317 .318 .319 .320 .321 .322 .323 .324 .325 .326 .327 .328 .329 .330 .331 .332 .333 .334 .335 .336 .337 .338 .339 .340 .341 .342 .343 .344 .345 .346 .347 .348 .349 .350 .351 .352 .353 .354 .355 .356 .357 .358 .359 .360 .361 .362 .363 .364 .365 .366 .367 .368 .369 .370 .371 .372 .373 .374 .375 .376 .377 .378 .379 .380 7.8994 7.9248 7.9502 7.9756 8.0010 8.0264 8.0518 8.0772 8.1026 8.1280 8.1534 8.1788 8.2042 8.2296 8.2550 8.2804 8.3058 8.3312 8.3566 8.3820 8.4074 8.4328 8.4582 8.4836 8.5090 8.5344 8.5598 8.5852 8.6106 8.6360 8.6614 8.6868 8.7122 8.7376 8.7630 8.7884 8.8138 8.8392 8.8646 8.8900 8.9154 8.9408 8.9662 8.9916 9.0170 9.0424 9.0678 9.0932 9.1186 9.1440 9.1694 9.1948 9.2202 9.2456 9.2710 9.2964 9.3218 9.3472 9.3726 9.3980 9.4234 9.4488 9.4742 9.4996 9.5250 9.5504 9.5758 9.6012 9.6266 9.6520 .381 .382 .383 .384 .385 .386 .387 .388 .389 .390 .391 .392 .393 .394 .395 .396 .397 .398 .399 .400 .401 .402 .403 .404 .405 .406 .407 .408 .409 .410 .411 .412 .413 .414 .415 .416 .417 .418 .419 .420 .421 .422 .423 .424 .425 .426 .427 .428 .429 .430 .431 .432 .433 .434 .435 .436 .437 .438 .439 .440 .441 .442 .443 .444 .445 .446 .447 .448 .449 .450 116 12:36 PM mm 9.6774 9.7028 9.7282 9.7536 9.7790 9.8044 9.8298 9.8552 9.8806 9.9060 9.9314 9.9568 9.9822 10.0076 10.0330 10.0584 10.0838 10.1092 10.1346 10.1600 10.1854 10.2108 10.2362 10.2616 10.2870 10.3124 10.3378 10.3632 10.3886 10.4140 10.4394 10.4648 10.4902 10.5156 10.5410 10.5664 10.5918 10.6172 10.6426 10.6680 10.6934 10.7188 10.7442 10.7696 10.7950 10.8204 10.8458 10.8712 10.8966 10.9220 10.9474 10.9728 10.9982 11.0236 11.0490 11.0744 11.0998 11.1252 11.1506 11.1760 11.2014 11.2268 11.2522 11.2776 11.3030 11.3284 11.3538 11.3792 11.4046 11.4300 Inch .451 .452 .453 .454 .455 .456 .457 .458 .459 .460 .461 .462 .463 .464 .465 .466 .467 .468 .469 .470 .471 .472 .473 .474 .475 .476 .477 .478 .479 .480 .481 .482 .483 .484 .485 .486 .487 .488 .489 .490 .491 .492 .493 .494 .495 .496 .497 .498 .499 .500 .501 .502 .503 .504 .505 .506 .507 .508 .509 .510 .511 .512 .513 .514 .515 .516 .517 .518 .519 .520 Page 116 mm 11.4554 11.4808 11.5062 11.5316 11.5570 11.5824 11.6078 11.6332 11.6586 11.6840 11.7094 11.7348 11.7602 11.7856 11.8110 11.8364 11.8618 11.8872 11.9126 11.9380 11.9634 11.9888 12.0142 12.0396 12.0650 12.0904 12.1158 12.1412 12.1666 12.1920 12.2174 12.2428 12.2682 12.2936 12.3190 12.3444 12.3698 12.3952 12.4206 12.4460 12.4714 12.4968 12.5222 12.5476 12.5730 12.5984 12.6238 12.6492 12.6746 12.7000 12.7254 12.7508 12.7762 12.8016 12.8270 12.8524 12.8778 12.9032 12.9286 12.9540 12.9794 13.0048 13.0302 13.0556 13.0810 13.1064 13.1318 13.1572 13.1826 13.2080 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Page 117 Inch mm Inch mm Inch mm Inch mm .521 .522 .523 .524 .525 .526 .527 .528 .529 .530 .531 .532 .533 .534 .535 .536 .537 .538 .539 .540 .541 .542 .543 .544 .545 .546 .547 .548 .549 .550 .551 .552 .553 .554 .555 .556 .557 .558 .559 .560 .561 .562 .563 .564 .565 .566 .567 .568 .569 .570 .571 .572 .573 .574 .575 .576 .577 .578 .579 .580 .581 .582 .583 .584 .585 .586 .587 .588 .589 .590 13.2334 13.2588 13.2842 13.3096 13.3350 13.3604 13.3858 13.4112 13.4366 13.4620 13.4874 13.5128 13.5382 13.5636 13.5890 13.6144 13.6398 13.6652 13.6906 13.7160 13.7414 13.7668 13.7922 13.8176 13.8430 13.8684 13.8938 13.9192 13.9446 13.9700 13.9954 14.0208 14.0462 14.0716 14.0970 14.1224 14.1478 14.1732 14.1986 14.2240 14.2494 14.2748 14.3002 14.3256 14.3510 14.3764 14.4018 14.4272 14.4526 14.4780 14.5034 14.5288 14.5542 14.5796 14.6050 14.6304 14.6558 14.6812 14.7066 14.7320 14.7574 14.7828 14.8082 14.8336 14.8590 14.8844 14.9098 14.9352 14.9606 14.9860 .591 .592 .593 .594 .595 .596 .597 .598 .599 .600 .601 .602 .603 .604 .605 .606 .607 .608 .609 .610 .611 .612 .613 .614 .615 .616 .617 .618 .619 .620 .621 .622 .623 .624 .625 .626 .627 .628 .629 .630 .631 .632 .633 .634 .635 .636 .637 .638 .639 .640 .641 .642 .643 .644 .645 .646 .647 .648 .649 .650 .651 .652 .653 .654 .655 .656 .657 .658 .659 .660 15.0114 15.0368 15.0622 15.0876 15.1130 15.1384 15.1638 15.1892 15.2146 15.2400 15.2654 15.2908 15.3162 15.3416 15.3670 15.3924 15.4178 15.4432 15.4686 15.4940 15.5194 15.5448 15.5702 15.5956 15.6210 15.6464 15.6718 15.6972 15.7226 15.7480 15.7734 15.7988 15.8242 15.8496 15.8750 15.9004 15.9258 15.9512 15.9766 16.0020 16.0274 16.0528 16.0782 16.1036 16.1290 16.1544 16.1798 16.2052 16.2306 16.2560 16.2814 16.3068 16.3322 16.3576 16.3830 16.4084 16.4338 16.4592 16.4846 16.5100 16.5354 16.5608 16.5862 16.6116 16.6370 16.6624 16.6878 16.7132 16.7386 16.7640 .661 .662 .663 .664 .665 .666 .667 .668 .669 .670 .671 .672 .673 .674 .675 .676 .677 .678 .679 .680 .681 .682 .683 .684 .685 .686 .687 .688 .689 .690 .691 .692 .693 .694 .695 .696 .697 .698 .699 .700 .701 .702 .703 .704 .705 .706 .707 .708 .709 .710 .711 .712 .713 .714 .715 .716 .717 .718 .719 .720 .721 .722 .723 .724 .725 .726 .727 .728 .729 .730 16.7894 16.8148 16.8402 16.8656 16.8910 16.9164 16.9418 16.9672 16.9926 17.0180 17.0434 17.0688 17.0942 17.1196 17.1450 17.1704 17.1958 17.2212 17.2466 17.2720 17.2974 17.3228 17.3482 17.3736 17.3990 17.4244 17.4498 17.4752 17.5006 17.5260 17.5514 17.5768 17.6022 17.6276 17.6530 17.6784 17.7038 17.7292 17.7546 17.7800 17.8054 17.8308 17.8562 17.8816 17.9070 17.9324 17.9578 17.9832 18.0086 18.0340 18.0594 18.0848 18,1102 18.1356 18.1610 18.1864 18.2118 18.2372 18.2626 18.2880 18.3134 18.3388 18.3642 18.3896 18.4150 18.4404 18.4658 18.4912 18.5166 18.5420 .731 .732 .733 .734 .735 .736 .737 .738 .739 .740 .741 .742 .743 .744 .745 .746 .747 .748 .749 .750 .751 .752 .753 .754 .755 .756 .757 .758 .759 .760 .761 .762 .763 .764 .765 .766 .767 .768 .769 .770 .771 .772 .773 .774 .775 .776 .777 .778 .779 .780 .781 .782 .783 .784 .785 .786 .787 .788 .789 .790 .791 .792 .793 .794 .795 .796 .797 .798 .799 .800 18.5674 18.5928 18.6182 18.6436 18.6690 18.6944 18.7198 18.7452 18.7706 18.7960 18.8214 18.8468 18.8722 18.8976 18.9230 18.9484 18.9738 18.9992 19.0246 19.0500 19.0754 19.1008 19.1262 19.1516 19.1770 19.2024 19.2278 19.2532 19.2786 19.3040 19.3294 19.3548 19.3802 19.4056 19.4310 19.4564 19.4818 19.5072 19.5326 19.5580 19.5834 19.6088 19.6342 19.6596 19.6850 19.7104 19.7358 19.7612 19.7866 19.8120 19.8374 19.8628 19.8882 19.9136 19.9390 19.9644 19.9898 20.0152 20.0406 20.0660 20.0914 20.1168 20.1422 20.1676 20.1930 20.2184 20.2438 20.2692 20.2946 20.3200 117 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:36 PM Inch mm Inch mm Inch mm .801 .802 .803 .804 .805 .806 .807 .808 .809 .810 .811 .812 .813 .814 .815 .816 .817 .818 .819 .820 .821 .822 .823 .824 .825 .826 .827 .828 .829 .830 .831 .832 .833 .834 .835 .836 .837 .838 .839 .840 .841 .842 .843 .844 .845 .846 .847 .848 .849 .850 20.3454 20.3708 20.3962 20.4216 20.4470 20.4724 20.4978 20.5232 20.5486 20.5740 20.5994 20.6248 20.6502 20.6756 20.7010 20.7264 20.7518 20.7772 20.8026 20.8280 20.8534 20.8788 20.9042 20.9296 20.9550 20.9804 21.0058 21.0312 21.0566 21.0820 21.1074 21.1328 21.1582 21.1836 21.2090 21.2344 21.2598 21.2852 21.3106 21.3360 21.3614 21.3868 21.4122 21.4376 21.4630 21.4884 21.5138 21.5392 21.5646 21.5900 .851 .852 .853 .854 .855 .856 .857 .858 .859 .860 .861 .862 .863 .864 .865 .866 .867 .868 .869 .870 .871 .872 .873 .874 .875 .876 .877 .878 .879 .880 .881 .882 .883 .884 .885 .886 .887 .888 .889 .890 .891 .892 .893 .894 .895 .896 .897 .898 .899 .900 21.6154 21.6408 21.6662 21.6916 21.7170 21.7424 21.7678 21.7932 21.8186 21.8440 21.8694 21.8948 21.9202 21.9456 21.9710 21.9964 22.0218 22.0472 22.0726 22.0980 22.1234 22.1488 22.1742 22.1996 22.2250 22.2504 22.2758 22.3012 22.3266 22.3520 22.3774 22.4028 22.4282 22.4536 22.4790 22.5044 22.5298 22.5552 22.5806 22.6060 22.6314 22.6568 22.6822 22.7076 22.7330 22.7584 22.7838 22.8092 22.8346 22.8600 .901 .902 .903 .904 .905 .906 .907 .908 .909 .910 .911 .912 .913 .914 .915 .916 .917 .918 .919 .920 .921 .922 .923 .924 .925 .926 .927 .928 .929 .930 .931 .932 .933 .934 .935 .936 .937 .938 .939 .940 .941 .942 .943 .944 .945 .946 .947 .948 .949 .950 22.8854 22.9108 22.9362 22.9616 22.9870 23.0124 23.0378 23.0632 23.0886 23.1140 23.1394 23.1648 23.1902 23.2156 23.2410 23.2664 23.2918 23.3172 23.3426 23.3680 23.3934 23.4188 23.4442 23.4696 23.4950 23.5204 23.5458 23.5712 23.5966 23.6220 23.6474 23.6728 23.6982 23.7236 23.7490 23.7744 23.7998 23.8252 23.8506 23.8760 23.9014 23.9268 23.9522 23.9776 24.0030 24.0284 24.0538 24.0792 24.1046 24.1300 118 Inch .951 .952 .953 .954 .955 .956 .957 .958 .959 .960 .961 .962 .963 .964 .965 .966 .967 .968 .969 .970 .971 .972 .973 .974 .975 .976 .977 .978 .979 .980 .981 .982 .983 .984 .985 .986 .987 .988 .989 .990 .991 .992 .993 .994 .995 .996 .997 .998 .999 1.000 Page 118 mm 24.1554 24.1808 24.2062 24.2316 24.2570 24.2824 24.3078 24.3332 24.3586 24.3840 24.4094 24.4348 24.4602 24.4856 24.5110 24.5364 24.5618 24.5872 24.6126 24.6380 24.6634 24.6888 24.7142 24.7396 24.7650 24.7904 24.8158 24.8412 24.8666 24.8920 24.9174 24.9428 24.9682 24.9936 25.0190 25.0444 25.0698 25.0952 25.1206 25.1460 25.1714 25.1968 25.2222 25.2476 25.2730 25.2984 25.3238 25.3492 25.3746 25.4000 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 119 TOLERANCE TABLES FOR Pages C.R. Steel Sheets, Long Terne and Galvannealed Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120-122 C.R. Strip Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123-124 Flat Wire 1/2” and Under . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Spring Steel Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126-128 Electro Tin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Electro Zinc Coated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 C.R. Stainless Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132-133 Copper Base Alloy Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134-135 MISCELLANEOUS Pages Tolerances for Over and Under Shipment . . . . . . . . . . . . . . . . . . . . . 131 Chemical Analysis for Carbon Steels . . . . . . . . . . . . . . . . . . . . . . . . 136 Chemical Analysis for Stainless Steels . . . . . . . . . . . . . . . . . . . . . . . 137 Suggested Rockwell Procedures . . . . . . . . . . . . . . . . . . . . . . . . 138-139 Rockwell Hardness Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140-141 Cross Reference of Specifications . . . . . . . . . . . . . . . . . . . . . . . 142-143 Coil Weight Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144-145 Fractions Expressed as Decimals – Chart . . . . . . . . . . . . . . . . . . . . 146 Standard Gages – Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Trade Customs/ Terms of Sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 Manufacturing Limitations Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Oscillated Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Statistical Process Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Electronic Data Interchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Bar Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 119 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 120 STANDARD TOLERANCE TABLES C.R. CARBON STEEL SHEETS Note: Tolerances for Terne Sheets and Galvannealed Sheets are the same as for C.R. Sheets THICKNESS TOLERANCES* Over and Under – Inches Coils and Cut Lengths Specified Thickness Specified Width Inches Over .098 Over .071 Over .057 Over .039 Over .019 Over.014 to .142 to .098 to .071 to .057 to .039 to .019 incl. incl. incl. incl. incl. incl. Over 12 to 15 incl. Over 15 to 72 incl. .006 .005 .005 .004 .003 .002 .007 .006 .005 .004 .003 .002 * Thickness is measured at any point across the width not less than 3/8” from a side edge. The specified thickness range captions noted above apply when sheet is specified to NOMINAL THICKNESS, NOT minimum thickness. WIDTH TOLERANCES not resquared Coils and Cut Lengths over 12” in width Tolerances Over Specified Width, Inch. No Tolerance Under Specified Width, Inches Over Over Over Over Over 12 30 48 60 80 to to to to 30 48 60 80 incl. incl. incl. incl. 1/8 3/16 1/4 5/16 3/8 Coils and Cut Lengths 2” to 12” in width Tolerances Over and Under, Inch Specified Minimum Thickness, Inches Over .014 to .068 incl. Over .068 to .083 incl. Specified Width, Inches 2 to 6 inclusive Over 6 to 9 inclusive Over 9 to 12 inclusive .008 .012 .016 .016 .032 .032 Note 1 - This table applies to widths produced by slitting from wider sheet. Note 2 - The specified width range captions noted above also apply when sheet is specified to width tolerances all over, nothing under. In such cases, the above tolerances are doubled. 120 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 121 C.R. CARBON STEEL SHEETS (Cont.) LENGTH TOLERANCES not resquared Cut Lengths over 12” in width Specified Length, Inches Over Over Over Over Over Over Over Over Tolerances Over Specified Length, Inches. No Tolerances Under 1/8 1/4 1/2 3/4 1 1-1/4 1-1/2 1-3/4 12 to 30 incl. 30 to 60 incl. 60 to 96 incl. 96 to 120 incl. 120 to 156 incl. 156 to 192 incl. 192 to 240 incl. 240 Cut Lengths 2” to 12” in width Tolerances Over Specified Length, Inch No Tolerance Under Specified Width, Inch 24 to 60 incl. Over 60 to 120 incl. Over 120 to 240 incl. 2 to 12 incl. 1/2 3/4 1 This table applies to widths produced by slitting from wider sheet. OUT-OF-SQUARE TOLERANCES not resquared Cut Lengths over 12” in width Out-of-square is the greatest deviation of an end edge from a straight line at right angle to a side and touching one corner. It is also obtained by measuring the difference between the diagonals of the cut length sheet. The out-of-square deviation is one-half of that difference. The tolerance for all thicknesses and all sizes is 1/16 inch per 6 inches of width or fraction thereof. RESQUARED TOLERANCES Cut Lengths over 12” in width When cut lengths are specified resquared, the width and length are not less than the dimensions specified. The individual tolerance for over-width, overlength, camber or out-of-square should not exceed 1/16 inch up to and including 48 inches in width and up to and including 120 inches in length. For cut lengths wider or longer, the applicable tolerance is 1/8 inch. CAMBER TOLERANCES Cut Lengths, not resquared (over 12” in width) Cut Length, Feet Over Over Over Over Over to 4 incl. 4 to 6 incl. 6 to 8 incl. 8 to 10 incl. 10 to 12 incl. 12 to 14 incl. Camber Tolerances, Inches Note-The camber tolerance for coils is one inch in any 20 feet. 1/8 3/16 1/4 5/16 3/8 1/2 Coils 2” to 12” in width 1/4 Inch in any 8 feet: This table applies to widths produced by slitting from wider sheet 121 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 122 C.R. CARBON STEEL SHEETS (Cont.) FLATNESS TOLERANCES Cut Lengths over 12” in width not specified to Stretcher Level Standard of Flatness Specified Minimum Thickness Inch Specified Width Inches Flatness Tolerances (maximum deviation from a horizontal flat surface), Inch .044 and thinner To 36 incl. Over 36 to 60 incl. Over 60 3/8 5/8 7/8 Over .044 To 36 incl. Over 36 to 60 incl. Over 60 to 72 incl. Over 72 1/4 3/8 5/8 7/8 Note 1 - The above table also applies to lengths cut from coils by the consumer when adequate flattening measures are performed. Note 2 - The above table does not apply when product is ordered: (a) Full Hard or to a hardness range. (b) Class 2 Cut Lengths over 12” in width specified to Stretcher Level Standard of Flatness Specified Minimum Thickness Inch Specified Width Specified Length Inches Inches Flatness Tolerances (maximum deviation from a horizontal flat surface), Inch Over .015 to .028 incl. To 36 incl. To 120 incl. Wider or Longer 1/4 3/8 Over .028 To 48 incl. To 120 incl. Wider or Longer 1/8 1/4 Tolerances shown throughout this section include size ranges within our production capabilities only. – For longer lengths or wider widths refer to Association Tolerance booklets for the product in question. 122 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 123 STANDARD TOLERANCE TABLES C.R. CARBON STRIP STEEL LOW CARBON* STRIP STEEL TOLERANCES Ordered Thickness Inches .143 .060 .030 .020 .010 .004 to to to to to to .1875 .142 under under under under All Widths Up to 23 15/16 + + + + + + .060 .030 .020 .010 .0025 .002 .0015 .001 .00075 .0005 * Measured 3/8 inch or more in from the edge on 1 inch or wider; and on narrower than 1 inch at any place between the edges. WIDTH TOLERANCES for Edges No. 1, 4, 5, and 6 Coils and Cut Lengths Edge No. Specified Width Inches Specified Thickness Width Tolerances Over Inch and Under, Inch 1 1 Over 1/2 to 3/4 incl. Over 3/4 to 5 incl. 0.0938 and thinner 0.125 and thinner 0.005 0.005 4 4 4 4 Over Over Over Over 1/2 to 1 incl. 1 to 2 incl. 2 to 4 incl. 4 to 6 incl. 0.1875 0.2499 0.2499 0.2499 0.015 0.025 0.047 0.047 5 5 5 5 5 Over Over Over Over Over 1/2 to 3/4 incl. 3/4 to 5 incl. 5 to 9 incl. 9 to 20 incl. 20 to 23-15/16 incl. 0.0938 and thinner 0.125 and thinner 0.125 to 0.008 incl. 0.105 to 0.015 incl. 0.080 to 0.023 incl. 0.005 0.005 0.010 0.010 0.015 6 6 6 6 Over Over Over Over 1/2 to 1 incl. 1 to 2 incl. 2 to 4 incl. 4 to 6 incl. 0.1875 0.2499 0.2499 0.2499 0.015 0.025 0.047 0.047 to to to to to to to to 0.025 0.025 0.035 0.047 0.025 0.025 0.035 0.047 incl. incl. incl. incl. incl. incl. incl. incl. 123 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 124 C.R. CARBON STEEL STRIP (Cont.) WIDTH TOLERANCES for No. 2 Edge (Mill Edge) Coils and Cut Lengths Width Tolerances Over and Under Inch Specified Width, Inches Over To and Including 1/2 2 5 10 15 20 2 5 10 15 20 23-15/16 1/32 3/64 5/64 3/32 1/8 5/32 WIDTH TOLERANCES for No. 3 Edge (Slit Edge) Coils and Cut Lengths Width Tolerances, Over and Under, Inch Specified Thickness Inch Specified Width, Inches Over To and incl. Over 1/2 to 6 incl. Over 6 to 9 incl. Over 9 to 12 incl. Over 12 to 20 incl. Over 12 to 23-15/16 incl. 0.160 0.099 0.068 0.016 Up to 0.2499 0.160 0.099 0.068 0.016 0.016 0.010 0.008 0.005 0.005 0.020 0.016 0.010 0.005 0.005 0.020 0.016 0.010 0.010 0.010 0.031 0.020 0.016 0.016 0.016 0.031 0.020 0.020 0.020 0.020 LENGTH TOLERANCES Length Tolerance Over, Inch. No Tolerance Under Specified Length, Inch Specified Width, Inch Over 1/2 to 12 incl. Over 12 to 23-15/16 incl. 24 to 60 incl. 1/4 1/2 Over 60 to 120 incl. 1/2 3/4 Over 120 to 240 incl. 3/4 1 CAMBER TOLERANCES Coils and Cut Lengths Camber is the deviation of a side edge from a straight line. The standard for measuring this deviation is based on any 8-foot length. It is obtained by placing an 8-foot straight edge on the concave side and measuring the maxmum distance between the strip edge and the straight edge as shown in the following sketch: Width, Inches Over 1/2 to 1-1/2 incl. Over 1-1/2 to 23–15/16 incl. (Applicable To All Types of Edges) W=Width of strip in inches. C= Camber in inches. Standard Camber Tolerance, Inch 1/2 1/4 FLATNESS TOLERANCES It has not been practicable to formulate flatness tolerances for cold rolled carbon steel strip to represent the wide range of widths and thicknesses and variety of tempers produced in coils or cut lengths. Flatness on temper rolled steel strip cannot be guaranteed. 124 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 125 STANDARD TOLERANCE TABLES C.R. CARBON STEEL FLAT WIRE WIDTH TOLERANCES Edge No. Specified Width, Inches Specified Thickness, Inch Tolerances for Specified Width Plus and Minus, Inch 1 0.500 to 0.126, incl. 0.2499 to 0.126 Under 0.126 to 0.0625 incl. Under 0.126 to 0.0625 Under 0.0625 Under 0.0625 0.005 0.004 0.003 4 and 6 0.2499 to 0.126 0.500 to 0.126 incl. Under 0.126 to 0.0625 incl. Under 0.126 to 0.0625 Under 0.0625 Under 0.0625 Under 0.126 to 0.0625 0.500 to 0.125 incl. Under 0.0625 0.010 0.008 0.006 3 and 5 0.008 0.005 THICKNESS TOLERANCES 1/2” or Less Wide Specified Thickness, Inch Tolerances for Specified Thickness, Plus and Minus, Inch 0.002 0.0015 0.001 0.0005 0.2499 to 0.0625, incl. Under 0.0625 to 0.029, incl. Under 0.029 to 0.010, incl. Under 0.010 to 0.005, incl. Thickness measurements are customarily made with a one-inch opening, flat faced, one quarter–inch spindle micrometer. The measurement is made at room temperature and the full spindle diameter is used where the width of the flat wire permits. NOTE – Tolerances shown are generally followed by the producer. LENGTH TOLERANCES Specified Length, Inch 24 to 60, incl. Over 60 to 120, incl. Over 120 to 240, incl. Tolerances Over the Specified Length, Inch. No tolerance under 1/4 1/2 3/4 Note: Tolerances shown are generally followed by the producer. Camber is the deviation of a side edge from a straight line. The standard for measuring this deviation is based on any 8-foot length. It is obtained by placing an 8-foot straight edge on the concave side and measuring the maximum distance between the flat wire edge and the straight edge as shown in the sketch to the right: Camber in flat wire is influenced by many factors.The producer should be consulted for camber tolerances. CAMBER W = Width of flat wire in inches C = Camber in inches 125 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 126 STANDARD TOLERANCE TABLES C.R. CARBON SPRING STEEL Annealed Coils and Cut Lengths Untempered THICKNESS TOLERANCES* Thickness Tolerances, Over and Under, Inch Specified Thickness, Specified Width, Inches Inch Under Under 3 to Over Over Over Over Over 20 to To 1 to 3 to 6 6 to 9 to 12 to 16 to 23-15/16 and Under Incl. 1/2 Excl. 1 Incl. Incl. 9 Incl. 12 Incl. 16 Incl. 20 Incl. Incl. .250 .200 .161 .100 .200 .161 .100 .069 .003 .0025 .002 .002 .004 .0035 .002 .002 .0045 .004 .003 .0025 .0045 .004 .003 .003 .005 .0045 .003 .003 .0055 .0045 .0035 .0035 .0055 .005 .0045 .0035 .0055 .005 .005 .0035 .069 .050 .040 .035 .050 .040 .035 .032 .002 .002 .002 .0015 .002 .002 .002 .0015 .0025 .0025 .002 .002 .0025 .0025 .002 .002 .0025 .0025 .002 .002 .003 .0025 .002 .002 .003 .0025 .002 .002 .003 .0025 .002 .002 .032 .029 .026 .023 .029 .026 .023 .020 .0015 .001 .001 .001 .0015 .0015 .001 .001 .0015 .0015 .001 .001 .002 .002 .0015 .0015 .002 .002 .0015 .0015 .002 .002 .002 .0015 .002 .002 .002 .0015 .002 .002 .002 .0015 .020 .013 .009 .007 .013 .009 .007 – .00075 .00075 .00075 .0005 .00075 .00075 .00075 .0005 .00075 .001 .00075 .001 .00075 _ – .0005 .001 .001 _ – .0015 .001 _ – .0015 .001 _ – .0015 .001 _ – * Measured 3/8 inch or more in from the edge on 1 inch or wider; and at any place between the edges on narrower than 1 inch. NOTE – Excepting for thickness tolerances this page and the absence of camber tolerances under 1/2” (subject to negotiation) for untempered and tempered C.R. Spring Steel Strip, all tolerances for thickness, width, edge and length are identical with those for Cold Rolled Carbon Steel Strip. There are no published Flatness Tolerances for either tempered or untempered C.R. Carbon Spring Steel Strip. Tempered Specified Thickness Inch Over To and Incl. .160 .099 .068 .049 .034 .031 .028 .025 .019 .013 .009 .007 .0049 .2499 .160 .099 .068 .049 .034 .031 .028 .025 .019 .013 .009 .007 126 THICKNESS TOLERANCES* Coils and Cut Lengths Thickness Tolerances, Over and Under, Inch Specified Width, Inches Over 1/2 to Less than 1 .002 .002 .002 .002 .002 .0015 .0015 .0015 .001 .001 .001 .00075 .0005 1 to less than 3 .0035 .003 .003 .0025 .0025 .002 .0015 .0015 .0015 .001 .001 .00075 .0005 3 to 6 Incl. .004 .0035 .003 .003 .0025 .002 .002 .002 .002 .0015 .001 .00075 .00075 Over 6 to 9 Incl. .0045 .004 .0035 .003 .003 .003 .003 .0025 .002 .002 .0015 .001 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 127 C.R. CARBON SPRING STEEL (Cont.) WIDTH TOLERANCES for SPECIAL EDGES Coils and Cut Lengths Edge No. Specified Width Inches Specified Thickness Width Tolerances Inches Over and Under, Inch 1 1 4 4 4 4 Over Over Over Over Over Over 1/2 to 3/4 incl. 3/4 to 7 incl. 1/2 to 1 incl. 1 to 2 incl. 2 to 4 incl. 4 to 6 incl. .0938 and thinner .125 and thinner .1875 to 0.025 incl. .2499 to 0.025 incl. .2499 to 0.035 incl. .2499 to 0.047 incl. .005 .005 .015 .025 .047 .047 5 5 5 5 5 Over Over Over Over Over 1/2 to 3/4 incl. 3/4 to 5 incl. 5 to 9 incl. 9 to 20 incl. 20 to 23-15/16 incl. .0938 and thinner .125 and thinner .125 to 0.008 incl. .105 to 0.015 .080 to 0.023 .005 .005 .010 .010 .015 6 6 6 6 Over Over Over Over 1/2 to 1 incl. I to 2 incl. 2 to 4 incl. 4 to 6 .1875 .2499 .2499 .2499 .015 .025 .047 .047 to to to to 0.025 0.025 0.035 0.047 incl. incl. incl. incl. WIDTH TOLERANCES for No. 2 Edge (Mill Edge) Coils and Cut Lengths Specified Width, Inches Over Over Over Over Over Over Tolerances, Over and Under, Inch 1/2 to 2 incl. 2 to 5 incl. 5 to 10 incl. 10 to 15 incl. 15 to 20 incl. 20 to 23-15/16 incl. 1/32 3/64 5/64 3/32 1/8 5/32 WIDTH TOLERANCES for No. 3 Edge (Slit Edge) Coils and Cut Lengths Width Tolerances, Over and Under, Inch Specified Width, Inches Specified Thickness Inch Over To and incl. Over 1/2 to 6 incl. Over 6 to 9 incl. Over 9 to 12 incl. .160 .099 .068 .016 Up to .2499 .160 .099 .068 .016 .016 .010 .008 .005 .005 .020 .016 .010 .005 .005 .020 .016 .010 .010 .010 Over 12 Over 20 to 20 to 23-15/16 incl. incl. .031 .020 .016 .016 .016 .031 .020 .020 .020 .020 127 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:49 PM Page 128 C.R CARBON SPRING STEEL (Cont.) LENGTH TOLERANCES Length Tolerance, Over Inch. No Tolerance Under Specified Width, Inch Specified Length, Inch 24 to 60 Incl. Over 60 to 120 Incl. Over 120 to 240 Incl. 1/4 1/2 1/2 3/4 3/4 1 Over 1/2 to 12 incl. Over 12 to 23-15/16 incl. CAMBER TOLERANCES Specified Width, Inches Over 1/2 to 1-1/2 incl. Over 1-1/2 to 23-15/16 Standard Camber Tolerances, Inch 1/2 1/4 For strip less than 8 feet, tolerances are to be established in each instance. FLATNESS TOLERANCES It has not been practical to formulate flatness tolerances for cold rolled carbon spring steel to represent the range of widths and thicknesses and variety of properties produced in coils and cut lengths. Tolerances shown throughout this section include size ranges within our production capabilities only. – For longer lengths or wider widths refer to Association Tolerance booklets for the product in question. 128 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 129 STANDARD TOLERANCE TABLES ELECTROLYTIC TIN COATED SHEET STEEL* Except for thickness tolerances the dimensional tolerances for Electrolytic Tin Coated Sheet Steel are the same as those for Cold Rolled Sheet Steel. THICKNESS TOLERANCES Coils and Cut Lengths Thickness Tolerance – Over & Under, Inch Specified Nominal Thickness, Inch Specified Width, Inches Over .020 to .036 Over .015 to .020 incl. Over 12 to 36 incl. .003 .002 Note - Thickness is measured at any point across the width not less than 3/8 inch from a side edge. * Thickness tolerances for Electrolytic Tin Plate and Black Plate (under .015 thick) are normally 10% of the ordered thickness. WEIGHT OF COATING Electrolytic tin coated sheet steel may be specified in one of five different coating weight designation numbers. The weight of coating is the total amount on both surfaces of the sheet expressed in ounces per square foot. COATING DESIGNATION AND MINIMUM COATING TEST LIMITS Coating Designation Number 25 50 75 100 125 Nominal Coating Weight Check Limit Minimum by Triple-Spot Test Check Limit Minimum by Single-Spot Test Oz./Sq. Ft. Oz./Sq. Ft. Oz./Sq. Ft. .018 .037 .055 .073 .092 .012 .024 .036 .048 .060 .009 .018 .027 .036 .045 NOTE - The weight of coating in oz./sq. ft. refers to the total coating on both surfaces. The coating designation number is the term by which this product is traditionally specified. 129 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 130 STANDARD TOLERANCE TABLES ELECTROLYTIC ZINC COATED SHEET STEEL (ELECTRO GALVANIZED SHEET STEEL) THICKNESS TOLERANCES Coils and Cut Lengths Specified Width, Thickness Tolerances Over and Under, Inch Inches Specified Nominal Thickness, Inch Over .057 Over .039 Over .020 Over .014 .014 and to .100 incl. to .057 incl. to .039 incl. to .020 incl. thinner Up to 40 Over 40 to 60 .005 .005 .004 .004 .003 .003 .002 .002 .0015 – Note 1 - Thickness is measured at any point across the width not less than 3/8 inch from a side edge. Note 2 -The specified thickness range captions noted above apply when sheet is specified to a nominal thickness. Note 3 - Tolerances generally followed by producers. WEIGHT OF COATING Electrolytic zinc coated sheet steel is produced in light coating weights and is not intended to withstand outside exposure without chemical treating and painting. The weights of coating shall conform to the requirements prescribed in ASTM specification A879. ORDERED COATING AND MINIMUM COATING TEST LIMITS Coating Class A B C Minimum Check Limit Triple Spot Coating Weight Decimal oz. per sq. ft. Equivalent (Total Both Inch (One Surface) Surfaces) none .000065 .000140 none .075 .165 Minimum Check Limit Single Spot Decimal Equivalent Inch (One Surface) Coating Weight oz. per sq. ft. (Total Both Surfaces) none .000060 .000125 none .070 .150 PAINTING ELECTROLYTIC ZINC COATED SHEET STEEL Generally, electrolytic zinc coated sheet steel is not recommended for outdoor service unless it is protected with paint finishes. As in the case of hot dipped, this product must be treated with special primers or phosphate treatments in order to attain satisfactory paint results. Most producers of electrolytic zinc coated sheet steel can supply material pretreated at the mill. Such treated product makes the use of primers unnecessary and can be painted without extensive surface preparation other than the removal of oil and drawing compound. If the painting operation involves baking for curing, then the blanks or parts should be prebaked at time and temperature not less than that employed in curing the paint. 130 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:49 PM Page 131 STANDARD TOLERANCE TABLES TOLERANCES FOR OVER AND UNDER SHIPMENT High speed processing from mill size coils makes it impractical to deliver exact weights on individual items. For this reason the following tolerances for over and under shipments will apply on all orders. Items Items Items Items 1,000 lbs. or more . . . . . . . . . . . . . . . . . . . . . . . . ± 300/999 lbs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 100/299 lbs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 1/99 lbs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 10% 15% –10% 20% –10% 30% –10% 131 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 132 STANDARD TOLERANCE TABLES STAINLESS AND HEAT RESISTING COLD ROLLED STRIP STEELS THICKNESS TOLERANCES Coils and Cut Lengths Thickness Tolerances, Inch, for the Thicknesses and Widths Given, Over and Under Width, Inch Specified thickness, inch Over Over Over Over Over Over Over Over Over Over Over Over 0.005 0.010 0.011 0.013 0.017 0.020 0.029 0.035 0.050 0.069 0.100 0.125 0.161 to to to to to to to to to to to to to 0.010 incl. 0.011 incl. 0.013 incl. 0.017 incl. 0.020 incl. 0.029 incl. 0.035 incl. 0.050 incl. 0.069 incl. 0.100 incl. 0.125 incl. 0.161 incl. 3/16 excl. 3/16 to 6 incl. Over 6 to 12 incl. Over 12 to 48 excl. 10% 0.0015 0.0015 0.0015 0.0015 0.002 0.002 0.0025 0.003 0.003 0.004 0.0045 0.005 10% 0.0015 0.0015 0.002 0.002 0.0025 0.003 0.0035 0.0035 0.004 0.0045 0.0045 0.005 10% 0.0015 0.002 0.002 0.0025 0.0025 0.003 0.0035 0.0035 0.005 0.005 0.005 0.006 Note 1 - Thickness measurements are taken at least 3/8 inch in from edge of the strip, except that on widths less than 1 inch the tolerances are applicable for measurements at all locations. Note 2 - Above tolerances include crown. WIDTH TOLERANCES Edge Numbers 1 and 5 Coils and Cut Lengths Specified Edge No. 1 and 5 1 and 5 1 and 5 5 5 5 132 Over Over Over Over Over Width Inch Thickness, Inch 9/32 and under 9/32 to 3/4 incl. 3/4 to 5 incl. 5 to 9 incl. 9 to 20 incl. 20 to 24 excl. 1/16 and under 3/32 and under 1/8 and under 1/8 to .008 incl. 0.105 to 0.015 incl. 0.080 to 0.023 incl. Width Tolerance, Inch, for Thickness and Width Given Over and Under 0.005 0.005 0.005 0.010 0.010 0.015 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 133 STAINLESS AND HEAT RESISTING C.R. STRIP STEELS (Cont.) WIDTH TOLERANCES Edge Number 3 Coils and Cut Lengths Width Tolerance, Inch, Over and Under, for Thickness and Width Given Specified Thickness, Inch Under 1/2 1/2 Over 6 Over 9 Over 12 Over 20 to 48 to 20 to 12 to 9 to 3/16 to 6 0.005 0.008 0.010 — 0.068 and under Over 0.068 to 0.099 incl. Over 0.099 to 0.160 incl. Over 0.160 to under 3/16 in. excl. 0.005 0.008 0.010 0.016 0.005 0.010 0.016 0.020 0.010 0.010 0.016 0.020 0.016 0.016 0.020 0.031 0.020 0.020 0.020 0.031 LENGTH TOLERANCES Cut Lengths Specified Length, Inches Tolerance, Inch, Over Specified Length, No Tolerance Under 3/8 1/2 5/8 Up to 60 incl. Over 60 to 120 incl. Over 120 to 240 incl. CAMBER TOLERANCES Coils and Cut Lengths Camber is the deviation of a side edge from a straight line, and measurement is taken by placing an eight - foot straight edge on the concave side and measuring the greatest distance between the strip edge and the straight edge. Specified Width, Inches Tolerance Inch Per Unit Length of any 8 ft. Up to 1-1/2 incl. Over 1-1/2 to 48 excl. 1/2 1/4 Note - Sizes 1/2” and under are considered flat wire sizes and camber tolerances do not apply. FLATNESS Because of the wide range of widths and thicknesses and the variety of tempers produced in coils and cut lengths, no flatness tolerances have been established for cold rolled stainless strip. Flatness on temper rolled stainless steel strip cannot be guaranteed. 133 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 134 STANDARD TOLERANCE TABLES COPPER BASE ALLOY STRIP THICKNESS TOLERANCES Non – Refractory Alloys – (Brass) Over 12 Over 14 Over 20 Up to 8 Over 8 incl. to 12 incl. to 14 incl. to 20 incl. to 28 incl. Thickness (In Inches) Up to .004 incl. .0003 Over .004 to .006 incl. .0004 Over .006 to .009 incl. .0006 Over .009 to .013 incl. .0008 .0006 .0008 .0010 .0013 .0006 .0008 .0010 .0013 – .0013 .0015 .0018 – – – .0025 Over Over Over Over .013 .017 .021 .026 to to to to .017 .021 .026 .037 incl. incl. incl. incl. .0010 .0013 .0015 .002 .0015 .0018 .002 .002 .0015 .0018 .002 .002 .002 .002 .0025 .0025 .0025 .003 .003 .0035 Over Over Over Over .037 .050 .073 .130 to to to to .050 .073 .130 .188 incl. incl. incl. incl. .002 .0025 .003 .0035 .0025 .003 .0035 .004 .0025 .003 .0035 .004 .003 .0035 .004 .0045 .004 .005 .006 .007 REFRACTORY ALLOYS (Phosphor Bronze, Beryllium Copper, Nickel Silver) .0004 Up to .004 incl. Over .004 to .006 incl. .0006 Over .006 to .009 incl. .0008 Over .009 to .013 incl. .0010 Over .013 to .017 incl. .0013 Over .017 to .021 incl. .0015 Over .021 to .026 incl. .002 Over .026 to .037 incl. .0025 Over .037 to .050 incl. .003 Over .050 to .073 incl. .0035 Over .073 to .130 incl. .004 Over .130 to .188 incl. .0045 .0008 .0010 .0013 .0015 .0008 .0010 .0013 .0015 – .0015 .002 .0025 – – – – .002 .0025 .0025 .003 .002 .0025 .0025 .003 .0025 .003 .003 .0035 – – .004 .005 .0035 .004 .0045 .005 .0035 .004 .0045 .005 .004 .0045 .005 .006 .006 .007 .008 .010 WIDTH TOLERANCES - Plus and Minus PHOSPHOR BRONZE – BERYLLIUM COPPER – NICKEL SILVER – BRASS Width (in Inches) For Thicknesses .004 to .032 inches incl. For Thicknesses Over .032 to .125 inches incl. Up to 2 incl. Over 2 to 8 incl. Over 8 to 24 incl. .005 .008 1/64 .010 .013 1/64 LENGTH TOLERANCES - Plus PHOSPHOR BRONZE – BERYLLIUM COPPER – NICKEL SILVER – BRASS Lengths Specific Lengths, up to 10’ incl. Specific Lengths, Over 10’ to 20’ incl. Specific Lengths, With Ends Stock Lengths, With or Without Ends 134 Applicable Only to Full Length Pieces-Inches 1/4 1/2 1 1 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 135 COPPER BASE ALLOY STRIP (Cont.) CAMBER TOLERANCES - Plus or Minus in 72” PHOSPHOR BRONZE – BERYLLIUM COPPER – NICKEL SILVER – BRASS SLIT METAL Tolerances in Inches WIDTH (In Inches) Over Over Over Over Over Over 1/4 to 3/8 incl. 3/8 to 1/2 incl. 1/2 to 1 incl. 1 to 2 incl. 2 to 4 incl. 4 AS SLIT ONLY AS SLIT and either Straightened or Edge Rolled Shipped in Rolls Shipped Flat 2 1-1/2 1 5/8 1/2 3/8 1-1/2 1 3/4 5/8 1/2 3/8 Shipped Flat, in Rolls or on Bucks 1/2 1/2 1/2 3/8 3/8 3/8 SQUARE SHEARED METAL (Flat Straight Lengths) Not applicable to metal over 10 feet long. Maximum Edgewise Curvature (depth of arc) in any 6–foot Portion of the Total Length. TOLERANCES (In Inches) Thickness (In Inches) Up to 1/8 incl. Over 1/8 to 3/16 incl. Over 3/16 For Widths Up to 10 in. Incl. For Widths Over 10 in. 1/16 1/8 1/8 1/32 3/64 1/16 135 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 136 STANDARD CHEMICAL ANALYSIS SPECIFICATIONS FOR CARBON STEELS Chemical Composition Limits, Per Cent AISI Number C 1008 1010 1012 1015 1016 .10 .08 .10 .13 1017 1018 1019 1020 1022 .15 – – – .18 – – 1023 1025 1030 1035 1040 .20 .22 .28 .32 .37 1043 1045 1050 1055 1060 P. Max. S. Max. Mn Max. – .13 – .15 – .18 – .18 .30 .30 .30 .30 .60 – – – – – .50 .60 .60 .60 .90 .030 .030 .030 .030 .030 .050 .050 .050 .050 .050 1008 1010 1012 1015 1016 .20 .20 .20 .23 .23 .30 .60 .70 .30 .70 – – – – – .60 .90 1.00 .60 1.00 .030 .030 .030 .030 .030 .050 .050 .050 .050 .050 1017 1018 1019 1020 1022 – – – – – .25 .28 .34 .38 .44 .30 .30 .60 .60 .60 – – – – – .60 .60 .90 .90 .90 .030 .030 .030 .030 .030 .050 .050 .050 .050 .050 – 1025 1030 1035 1040 .40 .43 .48 .52 .55 – – – – – .47 .50 .55 .60 .65 .70 .60 .60 .60 .60 – – – – – 1.00 .90 .90 .90 .90 .030 .030 .030 .030 .030 .050 .050 .050 .050 .050 1043 1045 1050 1055 1060 1065 1070 1074 1080 1085 .59 .65 .70 .74 .80 – – – – – .70 .76 .80 .88 .94 .60 .60 .50 .60 .70 – – – – – .90 .90 .80 .90 1.00 .030 .030 .030 .030 .030 .050 .050 .050 .050 .050 1065 1070 1074 1080 1085 1095 .90 – 1.03 .050 1095 .30 – .50 Facilities for immediate processing to your requirements 136 Similar SAE Number 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:49 PM Page 137 TYPICAL AISI CHEMICAL ANALYSIS SPECIFICATIONS FOR STAINLESS AND HEAT RESISTANT STEELS Chemical Composition Limits, Percent Type Number C 201 0.15 Max. 202 0.15 Max. 301 0.15 Max. 302 0.15 Max. 302B 0.15 Max. 303 0.15 Max. 304 0.08 Max. 304L 0.03 Max. 305 0.12 Max. 308 0.08 Max. 309 0.20 Max. 309S 0.08 Max. 310 0.25 Max. 310S 0.08 Max. 314 0.25 Max. 316 0.08 Max. 316L 0.03 Max. 317 0.08 Max. 321 0.08 Max. 347 0.08 Max. 348 0.08 Max. 403 0.15 Max. 405 0.08 Max. 410 0.15 Max. 414 0.15 Max. 416 0.15 Max. 416 Se. 0.15 Max. 420 Over 0.15 430 0.12 Max. 430F 0.12 Max. 430F Se. 0.12 Max. 431 0.20 Max. 440A 0.60/0.75 440B 0.75/0.95 440C 0.95/1.20 446 0.20 Max. 501 Over 0.10 502 0.10 Max. 17-7 PH 0.09 Max. Mn Max. Si Max. 7.50 10.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 1.00 1.00 1.00 1.00 1.25 1.25 1.00 1.00 1.25 1.25 1.00 1.00 1.00 1.00 1.50 1.00 1.00 1.00 1.00 1.00 1.00 1.00 2.00/3.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.50 1.50 1.50/3.00 1.00 1.00 1.00 1.00 1.00 1.00 0.50 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Cr. 16.00/18.00 17.00/19.00 16.00/18.00 17.00/19.00 17.00/19.00 17.00/19.00 18.00/20.00 18.00/20.00 17.00/19.00 19.00/21.00 22.00/24.00 22.00/24.00 24.00/26.00 24.00/26.00 23.00/26.00 16.00/18.00 16.00/18.00 18.00/20.00 17.00/19.00 17.00/19.00 17.00/19.00 11.50/13.00 11.50/14.50 11.50/13.50 11.50/13.50 12.00/14.00 12.00/14.00 12.00/14.00 16.00/18.00 14.00/18.00 14.00/18.00 15.00/17.00 16.00/18.00 16.00/18.00 16.00/18.00 23.00/27.00 4.00/6.00 4.00/6.00 16.00/18.00 Ni 3.50/ 5.50 4.00/ 6.00 6.00/ 8.00 8.00/10.00 8.00/10.00 8.00/10.00 8.00/10.50 8.00/12.00 10.50/13.00 10.00/12.00 12.00/15.00 12.00/15.00 19.00/22.00 19.00/22.00 19.00/22.00 10.00/14.00 10.00/14.00 11.00/15.00 9.00/12.00 9.00/13.00 9.00/13.00 – – – 1.25/2.50 – – – – – – 1.25/2.50 – – – – – – 6.50/7.75 Other Elements 0.25 Max. N – – – – – – – – – – – – – – Mo 2.00/3.00 Mo 2.00/3.00 Mo 3.00/4.00 Ti 5xC Min. Cb 10xC Min. Cb-Ta10xC Min. – Al 0.10/0.30 – – – Se 0.15 Min. – – – Se 0.15 Min, – Mo 0.75 Max. Mo 0.75 Max. Mo 0.75 Max. N 0.25 Max. Mo 0.40 /0.65 Mo 0.40/ 0.65 Al 0.75/1.5 NOTE 1 – In the 200 Series the phosphorus and sulphur contents are 0.060 and 0.030 percent maximum respectively. N 0.25 Max. NOTE 2 – The phosphorus and sulphur contents in the above Type 300 Series are 0.045 and 0.030 per cent maximum respectively with the exception of Type 303 with phosphorus at 0.20 maximum and sulphur at 0.15 maximum. NOTE 3 – In the 400 Series as above the phosphorus and sulphur are 0.040 and 0.030 percent maximum excepting Types 416 and 430 F with phosphorus at 0.06 maximum and sulphur at 0.15 per cent minimum. NOTE 4 – In Types 416 Se and 430 F Se the phosphorus and the sulphur are both at 0.06 percent maximum. 137 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 138 ROCKWELL SCALES which to use? SPRING STEEL STRIP SINGLE THICKNESS .040” AND THICKER SINGLE THICKNESS .039” TO .025” SINGLE THICKNESS .024” TO .015” Black Oil Tempered (Scaleless) – .70-.80 C C-Scale C-Scale 30N-Scale Blue Tempered Spring Steel – .90-1.03 C C-Scale C-Scale 30N-Scale Cold Rolled-Annealed – .48-1.03 C B-Scale 30T-Scale 15T-Scale Hard Rolled-High Carbon – .70-1.03 C C-Scale C-Scale 30N-Scale High Carbon-Flat Wire – .70-.80 C Ann’ld B-Scale 30T-Scale 15T-Scale Thickness Gage Steel Strip – Tempered C-Scale C-Scale 30N-Scale Types 302, 304, 410 and 430 Annealed Also 17/7 PH Cond. A B-Scale 30T-Scale 15T-Scale Types 301 & 302 – 1/4 Hd. to Ex. Hd. Inc’l. Tempered Type 410 C-Scale C-Scale 30N-Scale 17/7 PH Cond. C C-Scale C-Scale 30N-Scale Cold Rolled Strip – All Tempers B-Scale 30T-Scale 15T-Scale Cold Rolled Sheet – All Tempers B-Scale 30T-Scale 15T-Scale 30T-Scale 15T-Scale STAINLESS STRIP LOW CARBON SHEET and STRIP Electrolytic Tin Coated Sheet Flat Wire – 1/4 and 1/2 Hard B-Scale 30T-Scale Shim Steel – 1/2 Hard and Full Hard B-Scale 30T-Scale 15T-Scale Beryllium Copper – Annealed and 1/2 Hard B-Scale 30T-Scale 15T-Scale Brass Strip – All Tempers B-Scale 30T-Scale 15T-Scale Nickel Silver – All Tempers B-Scale 30T-Scale 15T-Scale Phosphor Bronze Strip – Spring Temper B-Scale 30T-Scale 15T-Scale COPPER BASE ALLOY STRIP SOME DO’S AND DON’TS – Based on our experience NOTE - We believe in the use of Rockwell Hardness Testers in determining hardness values for the above flat cold rolled products, (in fact have 7 of them in daily use). But, remember that these values are approximate and vary somewhat from one tester to another and from person to person. (A) (B) (C) 138 We do not recommend the attempt to substitute B-scale Testers for Superficial Testers or vice versa. We suggest frequent use of test blocks for accuracy (use good side of blocks only). Change steel balls often and record changes. Never use a diamond point penetrator and a diamond anvil together. 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 139 Because conversions are not altogether reliable, the actual work of checking should be done on similar and identical testing machines – and to the same scale without conversions. The following listings, because of space limitations are confined to those products and tempers regularly stocked by us at PRECISION STEEL. As other metals and alloys are added, this list will be amended accordingly. NOTE – Not all technicians would agree with our testing procedures, viz., with the scales prescribed for different conditions. However, these are the standards we have set up for ourselves and so used by us. Of greatest importance however, is IDENTICAL MACHINES – Coupled with IDENTICAL SCALES SINGLE THICKNESS .014” TO .007” (I)DOUBLE THICKNESS .006” AND LIGHTER Reference – Rockwell Scales Used 15N-Scale 15N-Scale INSTRUCTIONS 15N-Scale 15N-Scale 15T-Scale 15T-Scale 15N-Scale 15N-Scale B-Scale. Use the A, B, C Standard Rockwell Hardness Tester with a 100 kg. load, the 1/16” steel ball penetrator and the steel anvil. 15N-Scale 15N-Scale 15T-Scale 15T-Scale 15N-Scale 15N-Scale 15N-Scale 15N-Scale 15T-Scale 15T-Scale 15T-Scale 15T-Scale (D) (E) (F) (G) (H) (I) (1) 15T-Scale 15T-Scale 15T-Scale 15T-Scale 15T-Scale 15T-Scale 15T-Scale 15T-Scale 15T-Scale 15T-Scale C-Scale. Use the A, B, C Standard Rockwell Hardness Tester with a 150 kg. load, the diamond point brale penetrator and the steel anvil. 15N-Scale. Use the Superficial Rockwell Hardness Tester with a 15 kg. load, the diamond point N-Brale penetrator and the steel anvil. *30N-Scale. Use the Superficial Rockwell Hardness Tester with a 30 kg. load, the diamond point N-Brale penetrator and the steel anvil. 15T-Scale. Use the Superficial Rockwell Hardness Tester with a 15 kg. load, the 1/16” steel ball penetrator and the diamond anvil. 30T-Scale. Use the Superficial Rockwell Hardness Tester with a 30 kg. load, the 1/16” steel ball penetrator and either the diamond or the steel anvil. Keep tester clean-in a warm dry room-frequently oil elevator screw with proper oil. Avoid locating tester where subject to noticeable floor vibration. Be gentle in tripping lever–let the machine do the work. This is an instrument, not a production machine. Use care in selecting samples. They should be quite flat and free from distortion resulting from careless hand shearing. Samples should never be bent by hand or otherwise prior to testing. This results in inaccuracies. Inspect steel anvils for penetration damage at each using. Inspect diamond point penetrator and diamond anvil at each using. Values resulting from double or multiple thickness testing are approximate only. 139 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 140 ROCKWELL HARDNESS CONVERSION CHART FOR HARDENED STEEL AND HARD ALLOYS Approximate Relationships Between Hardness Values Determined on “ROCKWELL” and “ROCKWELL Superficial” Hardness Testers and Values Determined on Other Testers. C. 150 Kg “Brale” A. 60 Kg “Brale” 30-N 30 Kg N “Brale” 45-N 45 Kg N “Brale” Brinell Tensile Hardness Strength 3000 Kg Thousand “ROCKWELL” “ROCKWELL” “ROCKWELL” HULTGREN Lbs. per 10MM Superficial Superficial Superficial sq. in. Ball 72.0 71.0 70.0 69.0 67.5 – – – – – – – – – – TENSILE STRENGTH INEXACT AND ONLY FOR STEEL “ROCKWELL” “ROCKWELL” 15-N 15 Kg N “Brale” 77.5 76.5 75.5 75.0 74.0 66.5 65.5 64.0 63.0 62.0 614 600 587 573 560 314 306 299 291 284 88.0 87.5 87.0 86.5 86.0 73.0 72.0 71.0 70.5 69.5 61.0 59.5 58.5 57.5 56.0 547 534 522 509 496 277 270 263 256 250 76.0 75.5 74.5 74.0 73.5 85.5 85.0 84.5 84.0 83.5 68.5 67.5 66.5 66.0 65.0 55.0 54.0 52.5 51.5 50.0 484 472 460 448 437 243 236 230 223 217 45 44 42 40 38 73.0 72.5 71.5 70.5 69.5 83.0 82.5 81.5 80.5 79.5 64.0 63.0 61.5 59.5 57.5 49.0 48.0 45.5 43.0 41.0 426 415 393 372 352 211 205 194 182 171 36 34 32 30 28 68.5 67.5 66.5 65.5 64.5 78.5 77.0 76.0 75.0 74.0 56.0 54.0 52.0 50.5 48.5 38.5 36.0 33.5 31.5 29.0 332 313 297 283 270 162 153 144 136 129 26 24 22 20 63.5 62.5 61.5 60.5 72.5 71.5 70.5 69.5 47.0 45.0 43.0 41.5 26.5 24.0 22.0 19.5 260 250 240 230 123 117 112 108 70 69 68 67 66 86.5 86.0 85.5 85.0 84.5 94.0 93.5 – 93.0 92.5 86.0 85.0 84.5 83.5 83.0 77.5 76.5 75.5 74.5 73.0 65 64 63 62 61 84.0 83.5 83.0 82.5 81.5 92.0 – 91.5 91.0 90.5 82.0 81.0 80.0 79.0 78.5 60 59 58 57 56 81.0 80.5 80.0 79.5 79.0 90.0 89.5 – 89.0 88.5 55 54 53 52 51 78.5 78.0 77.5 77.0 76.5 50 49 48 47 46 Printed with permission of Wilson Mechanical Instrument Co., Inc. 140 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:49 PM Page 141 ROCKWELL HARDNESS CONVERSION CHART “ROCKWELL” Superficial “ROCKWELL” Superficial “ROCKWELL” Superficial Standard BRINELL Thousand Lbs. TENSILE Per sq. in. STRENGTH “ROCKWELL” “ROCKWELL” Superficial “ROCKWELL” Superficial 100 99 98 93.0 92.5 – 82.0 81.5 81.0 72.0 71.0 70.0 201 195 189 116 112 109 66 64 62 82.0 81.5 80.5 60.5 59.5 58.0 39.5 37.5 35.5 104 101 98 97 96 95 92.0 – 91.5 80.5 80.0 79.0 69.0 68.0 67.0 184 179 175 106 103 101 60 58 56 80.0 79.5 79.0 56.5 55.0 54.0 33.5 31.0 29.0 95 92 90 94 93 92 – 91.0 90.5 78.5 78.0 77.5 66.0 65.5 64.5 171 167 163 98 96 93 54 52 50 78.0 77.5 77.0 52.5 51.0 49.5 27.0 25.0 23.0 87 85 83 91 90 89 – 90.0 89.5 77.0 76.0 75.5 63.5 62.5 61.5 160 157 154 91 89 87 48 46 44 76.0 75.5 75.0 48.5 47.0 45.5 20.5 18.5 16.5 81 79 78 88 87 86 – 89.0 88.5 75.0 74.5 74.0 60.5 59.5 58.5 151 148 145 85 83 81 42 40 38 74.0 73.5 73.0 44.0 43.0 41.5 14.5 12.5 10.0 76 74 73 85 84 83 – 88.0 87.5 73.5 73.0 72.0 58.0 57.0 56.0 142 140 137 80 78 77 36 34 32 72.0 71.5 71.0 40.0 38.5 37.5 8.0 6.0 4.0 71 70 68 82 81 80 – 87.0 86.5 71.5 71.0 70.0 55.0 54.0 53.0 135 133 130 75 74 72 30 28 24 70.5 69.5 68.5 36.0 34.5 32.0 2.0 – – 67 66 64 79 78 77 – 86.0 85.5 69.5 69.0 68.0 52.0 51.0 50.0 128 126 124 20 16 12 67.0 66.0 64.5 29.0 26.0 23.5 – – – 62 60 58 76 75 74 – 85.0 – 67.5 67.0 66.0 49.0 48.5 47.5 122 120 118 8 4 0 63.5 62.0 61.0 20.5 18.0 15.0 – – – 56 55 53 72 70 68 84.0 83.5 83.0 65.0 63.5 62.0 45.5 43.5 41.5 114 110 107 30-T 30 Kg 1/16” Ball 45-T 45 Kg 1/16” Ball Br’I 500 Kg 10MM Ball 15-T 15 Kg 1/16” Ball 30-T 30 Kg 1/16” Ball 45-T 45 Kg 1/16” Ball Br’l 500 Kg 10MM Ball Standard BRINELL 15-T 15 Kg 1/16” Ball “ROCKWELL” Superficial B. 100 Kg 1/16” Ball Tensile Strength Inexact and ONLY for Steel B. 100 Kg 1/16” Ball “ROCKWELL” For SOFT STEEL AND MOST NON-FERROUS METALS Approximate Relationships Between Hardness Values Determined on “‘ROCKWELL” and “ROCKWELL Superficial” Hardness Testers and Values Determined on Other Testers. Even for steel, Tensile Strength relation to hardness is inexact, unless determined for specific material. The 15N, 30N, 45N, and the 15T, 30T and 45T scales pertain to our ‘’ROCKWELL’’ Superficial Hardness Testers which apply exceedingly light minor and major loads for very shallow indentations, as required for testing nitrided steel or thin sheet metal. “All relative values on this card are averages of tests on various metals whose differences in coldworking and other properties prevent establishment of exact mathematical conversion. Hardness values here given were carefully determined in our own Standard Laboratory.” Printed with permission of Wilson Mechanical Instrument Co., Inc. 141 142 510 PHOSPHOR BRONZE 5% GRADE A SPRING TEMPER (8 NUMBERS HARD) 1010 410 430 J403 1010 51410 51430 30304 30305 30302 302 Anid. 1/4 H 304 305 J405 30301 J461 & J463 CA 510 J461 & J463 CA 260 SOCIETY OF AUTOMOTIVE ENGINEERS SAE 301 AMERICAN IRON & STEEL INSTITUTE AISI QQB-750 QQB-613 FEDERAL SPECIFICATION QQ A 109 A 240 A 240 A 693 A 240 & A 666 A 240 A 666 A 666 B 103 B 19 & B 36 AMERICAN SOCIETY FOR TESTING & MATERIALS ASTM 5517 5518 5902 5519 5516 5045 5044 – 5042 (5041) (5047) Single & Double Reduced A623 Full Hard 1/2 Hard 1/4 Hard SOFT 5T-AK 5504 5503 5528 5529 5513 5514 1/4 Hard 1/2 Hard 3/4 Hard Full Hard Soft 4510 4505 & 4507 AEROSPACE MATERIAL SPECIFICATION AMS 25043 25043 MIL. C-50 MILITARY SPECIFICATIONS MIL-S 10/17/08 COLD ROLLED LOW CARBON STRIP STEEL - ALL TEMPERS T410 - ANNEALED T430 - ANNEALED 17-7 PH — CONDITION A CONDITION C T304 – ANNEALED T305 – ANNEALED T302 STAINLESS STRIP STEEL T301 - ALL TEMPERS 260 COPPER DEVELOPMENT ASSOCIATION CDA BRASS STRIP ALL TEMPERS DESCRIPTION COMMON PRODUCT CROSS REFERENCE OF SIMILAR SPECIFICATIONS FOR MOST COMMON GRADES OF FLAT ROLLED STRIP AND SHEET PRODUCTS 403892_Precision_tech_manual_d7.qxd:pg 1 12:37 PM Page 142 1074 TEMPERED SPRING STEEL “75” CARBON QQS-775 Where material is required to meet one of the above specifications, complete information should be given at time order is placed. Specifications of one issuing agency may differ from other agencies. Material meeting one agency’s specification may not meet all of the requirements of another agency. General Services Administration 230 S. Dearborn, Room 3670 Chicago, IL 60604 QQ AISI American Iron & Steel Institute 100 16 th Street, N.W Washington, DC 20036 SAE Society of Automotive Engineers AMS 400 Commonwealth Drive Warrendale, PA 15096 CDA Copper Development Association 405 Lexington Avenue New York, NY 10017 A 653 A 653 A 308 MIL-S Naval Forms & Publications 5801 Tabor Philadelphia, PA 19120 ASTM American Society for Testing & & Material 1916 Race Street Philadelphia, PA 19103 5122 5085 5120 5121 6350 6351 Aluminum Association of America 750 Third Avenue New York, NY 10017 7947 7947 12:49 PM The above chart is a cross reference only of similar specifications for most common grades of flat rolled sheet and strip products. HOT-DIPPED GALVANIZED SHEET GALVANNEALED SHEET TERNE COATED SHEET A 879 A 599 ELECTROLYTIC TIN COATED SHEET ELECTRO-GALVANIZED SHEET A 623 A 624 A 684 A 684 A 684 ELECTROLYTIC TIN PLATE 1095 QQS-700 ASTM A1008 Single Reduced A625 Full Hard 5045 1/2 Hard 5044 1/4 Hard – Soft 5042 DDAK (5041) (5047) 10/17/08 * 1050 1074 1095 COLD ROLLED ANNEALED SPRING STEEL “50” CARBON “75” CARBON “95” CARBON 1095 4130 COLD ROLLED ALLOY STRIP STEEL 4130 TEMPERED SPRING STEEL “95” CARBON J403 1010 J404 4130 1010 COLD ROLLED LOW CARBON FLAT WIRE J403 1050 1074 1095 J411 1074 J411 COLD ROLLED SHEET STEEL– ALL TEMPERS COLD ROLLED BLACK PLATE 403892_Precision_tech_manual_d7.qxd:pg 1 Page 143 143 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:50 PM Page 144 COIL WEIGHT TABLE COLD ROLLED STRIP STEEL IN POUNDS PER INCH OF WIDTH OUTSIDE DIAMETER IN INCHES INSIDE DIAMETER IN INCHES 5 6 7 6 7 8 9 10 2.4 5.3 8.7 12.4 16.6 2.9 6.3 10.0 14.2 11 12 13 14 15 21.3 26.4 32.0 38.0 44.4 16 17 18 19 20 12 8 9 3.4 7.1 11.3 3.7 7.9 4.2 18.9 24.0 29.6 35.6 42.0 16.0 21.1 26.7 32.7 39.1 12.6 17.7 23.3 29.3 35.7 8.9 14.0 19.6 25.6 32.0 4.7 9.8 15.4 21.4 27.8 5.6 11.6 18.0 51.3 58.6 66.4 74.6 83.3 48.9 56.2 64.0 72.2 80.9 46.0 53.3 61.1 69.3 78.0 42.6 49.9 57.7 65.9 74.6 38.9 46.2 54.0 62.2 70.9 34.7 42.0 49.8 58.0 66.7 24.9 32.2 40.0 48.2 56.9 21 22 23 24 25 92.4 102.0 112.0 112.4 113.3 90.0 99.6 109.6 120.0 130.9 87.1 96.7 106.7 117.1 128.0 83.7 93.3 103.3 113.7 124.6 80.0 89.6 99.6 110.0 120.9 75.8 85.4 95.4 105.8 116.7 66.0 75.6 85.6 96.0 106.9 26 27 28 29 30 144.7 156.4 168.7 181.3 194.4 142.3 154.0 166.3 178.9 192.0 139.4 151.1 163.4 176.0 189.1 136.0 147.7 160.0 172.6 185.7 132.3 144.0 156.3 168.9 182.0 128.1 139.8 152.1 164.7 177.8 118.3 130.0 142.3 154.9 168.0 31 32 33 34 35 208.0 222.0 236.5 251.3 266.7 205.6 219.6 234.1 248.9 264.3 202.7 216.7 231.2 246.0 261.4 199.3 213.3 227.8 242.6 258.0 195.6 209.6 224.1 238.9 254.3 191.4 205.4 219.9 234.7 250.1 181.6 195.6 210.1 224.9 240.3 36 37 38 39 40 282.5 298.7 315.4 332.5 350.0 280.1 296.3 313.0 330.1 347.6 277.2 293.4 310.1 327.2 344.7 273.8 290.0 306.7 323.8 341.3 270.1 286.3 303.0 320.1 337.6 265.9 282.1 298.8 315.9 333.4 256.1 272.3 289.0 306.1 323.6 41 42 43 44 45 368.0 386.5 405.4 424.7 444.5 365.6 384.1 403.0 422.3 442.1 362.7 381.2 400.1 419.4 439.2 359.3 377.8 396.7 416.0 435.8 355.6 374.1 393.0 412.3 432.1 351.4 369.9 388.8 408.1 427.9 341.6 360.1 379.0 398.3 418.1 10 For Sizes other than those listed (OD2 – ID2) .2223 = Wt. in lbs. per inch of width. To find the weight in pounds of FLAT STEEL BLANKS (T x W x L in inches) .2833. To find the weight in pounds of STEEL PER LINEAL FOOT (T x W in inches) 3.4 144 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 145 COIL WEIGHT TABLE COLD ROLLED STRIP STEEL IN POUNDS PER INCH OF WIDTH OUTSIDE DIAMETER IN INCHES INSIDE DIAMETER IN INCHES 14 15 16 18 20 22 24 6 7 8 9 10 11 12 13 14 15 6.4 16 17 18 19 20 13.3 20.6 28.4 36.6 45.3 6.9 14.2 22.0 30.2 38.9 7.3 15.1 23.3 32.0 8.2 16.9 21 22 23 24 25 54.4 64.0 74.0 84.4 95.3 48.0 57.6 67.6 78.0 88.9 41.1 50.7 60.7 71.1 82.0 26.0 35.6 45.6 56.0 66.9 9.1 18.7 28.7 39.1 50.0 10.0 20.4 31.3 10.9 26 27 28 29 30 106.7 118.4 130.7 143.3 156.4 100.3 112.0 124.3 136.9 150.0 93.4 105.1 117.4 130.0 143.1 78.3 90.0 102.3 114.9 128.0 61.4 73.1 85.4 98.0 111.1 42.7 54.4 66.7 79.3 92.4 22.3 34.0 46.3 58.9 72.0 31 32 33 34 35 170.0 184.0 198.5 213.3 228.7 163.6 177.6 192.1 206.9 222.3 156.7 170.7 185.2 200.0 215.4 141.6 155.6 170.1 184.9 200.3 124.7 138.7 153.2 168.0 183.4 106.0 120.0 134.5 149.3 164.7 85.6 99.6 114.1 128.9 144.3 36 37 38 39 40 244.5 260.7 277.4 294.5 312.0 238.1 254.3 271.0 288.1 305.6 231.2 247.4 264.1 281.2 298.7 216.1 232.3 249.0 266.1 283.6 199.2 215.4 232.1 249.2 266.7 180.5 196.7 213.4 230.5 248.0 160.1 176.3 193.0 210.1 227.6 41 42 43 44 45 330.0 348.5 367.4 386.7 406.5 323.6 342.1 361.0 380.3 400.1 316.7 335.2 354.1 373.4 393.2 301.6 320.1 339.0 358.3 378.1 284.7 303.2 322.1 341.4 361.2 266.0 284.5 303.4 322.7 342.5 245.6 264.1 283.0 302.3 322.1 For Sizes other than those listed (OD2 – ID2) .2223 = Wt. in lbs. per inch of width. To find the weight in pounds of FLAT STEEL BLANKS (T x W x L in inches) .2833. To find the weight in pounds of STEEL PER LINEAL FOOT (T x W in inches) 3.4 145 403892_Precision_tech_manual_d7.qxd:pg 1 11/3/08 12:50 PM Page 146 DECIMAL EQUIVALENTS Fractions Expressed as Decimals 1 32 1 64 3 64 1 16 3 32 5 64 7 64 1/8 5 32 3 16 9 64 11 64 13 64 7 32 15 64 1/4 17 64 9 32 5 16 11 32 19 64 21 64 23 64 3/8 13 32 7 16 15 32 25 64 27 64 29 64 31 64 1/2 .015625 .03125 .046875 .0625 .078125 .09375 .109375 .125 .140625 .15625 .171875 .1875 .203125 .21875 .234375 .25 .265625 .28125 .296875 .3125 .328125 .34375 .359375 .375 .390625 .40625 .421875 .4375 .453125 .46875 .484375 .5 17 32 9 16 33 64 35 64 37 64 19 32 39 64 5/8 41 64 21 32 11 16 43 64 45 64 23 32 3/4 47 64 49 64 25 32 13 16 51 64 53 64 27 32 55 64 7/8 57 64 29 32 15 16 61 64 31 32 1 59 64 63 64 .515625 .53125 .546875 .5625 .578125 .59375 .609375 .625 .640625 .65625 .671875 .6875 .703125 .71875 .734375 .75 .765625 .78125 .796875 .8125 .828125 .84375 .859375 .875 .890625 .90625 .921875 .9375 .953125 .96875 .984375 1. Conversion inches to millimeters (inches x 25.4) Millimeters to inches (millimeters x .03937) 146 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Tab Terms Of Sale Page 147 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Tab Terms Of Sale Page 148 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 149 ORDER INFORMATION Your needs may begin with a sample for die tryouts. Next – material for a trial run and later – material for a quantity production run. From start to finish you need one type, one thickness, one width. You can help assure this consistent quality by supplying complete and accurate information covering all pertinent specifications. We wiII do the rest. Records are maintained of all material supplied against every order, including Material Source, Chemical Analysis and Mechanical Properties where applicable. This complete record enables us to supply certified test reports on all Precision Brand® materials. At Precision, filling orders is a matter of careful procedure, a proven method that assures consistent quality from sample, to trial run, to material for production. CHECK LIST Type Analysis or Quality of Metal _____________________________________ ________________________________________________________________ ________________________________________________________________ Exact Thickness __________________________Tolerance ________________ Exact Width _____________________________ Tolerance ________________ Quantity ________________________________________________________ Temper Designation or Rockwell Hardness _____________________________ ________________________________________________________________ Finish __________________________________________________________ Type of Edge Desired ______________________________________________ Coil ___________________ I.D.___________________ O.D.______________ Cut Length _________________________ Tolerance ____________________ Packing Instructions _______________________________________________ –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Routing _________________________________________________________ Invoicing and Shipping Instructions ___________________________________ ________________________________________________________________ P.O. Number ____________________________ Part Number _____________ 149 150 MANUFACTURING LIMITS CHART No Exceptions .042 Max. Tempered Spring No Exceptions No Exceptions 48 48 48 48 48 24 24 5/32 1/4 5/16 3/8 1/2 5/8 1 .026-.031 .032-.065 .066-.083 .084-.095 .096-.108 .109-.125 .126-.187 144 144 144 144 144 144 144 High Carbon Stainless and Alloy Steel 1/8” max. Sheared Strips 1/8” and heavier. Low Carbon Steel 1“ to 1-1/2” may need flattening after shearing. This may have camber as a result. 3/4 3/4 3/4 1 1 1 1-1/2 – – 144 144 3-3/4 3-3/4 – – – – – – 3-3/4 3-3/4 3-3/4 Deburred Edge only on all products. 3/8 3/8 – – – –– – 1/4 1/4 1/4 Inches Min. Max. Length in Inches Min. Max. – – 3/4 3/4 Edge Filing Sheet Shearing – 3 3 3 3 3 3 – – – – – 36 36 36 36 36 36 – – – – –-168 168 168 168 168 168 – – – – Length in Inches Min. Max. All Tempers Low Carbon Steel, Aluminum, Copper Alloys, Soft High Carbon, and Stainless. Oscillated Coils 4-1/2” Face 16” I.D. 1000 lb. max. Ribbon Wound Coils 40” max. O.D. 16” I.D. Round Edge only. – 3/8 3/8 3/8 3/8 3/8 3/8 – – – – Width in Inches Min. Max. Edge Rolling 5 5 5 – – – – – – 5 5 Thickness Limitation .010 min. – .070 max. Edge: .010 – .030 Rounded Edge .031 – .050 Good Safety Edge .051 – .070 Safety Edge Squared 1/4 1/4 1/4 – – – – – – 1/4 1/4 Inches Min. Max. Skiving 5 5 5 5 5 5 – 168 168 168 168 168 168 – Flatness not guaranteed on 1/4 Hard, Half Hard, 3/4 Hard, or Full Hard Stainless Steel, Spring Temper Phosphor Bronze. Tempered Spring Steel is made flat in coil and flattening and cutting to length does not improve its flatness. Sizes 3/8” to 3” .084 to .125 may be flattened and cut to length on the Edge Rolling Machine. 3/8 3/8 3/8 1/2 1/2 5/8 – 48 48 48 48 48 48 – – – 168 168 – – 5 5 – – – 48 ––3/8 3/8 Length in Inches Min. Max. Width in Inches Min. Max. Cut Length 10/17/08 Flat sheets from coils to exact blank sizes. Thickness range .015 to .109 inc’l. Widths and Lengths from 1 “ x 5” to 48” x 168”. Coil weight 20,000 lbs. maximum 16” to 24” I.D. Hot Rolled Pickled or Cold Rolled. Sizes narrower than those shown can be slit with no guarantee as to camber and burr. In some instances, heavier sizes can be slit. Refer to office on Annealed Spring Steel heavier than shown. Except Soft Copper or Aluminum Except Soft Copper or Aluminum Except Soft Copper or Aluminum No Exceptions 24 36 48 48 All Metals and Alloys 5/32 3/32 3/32 1/8 Width in Inches Min. Max. .001-.005 .006-.009 .010-.014 .015-.025 Thickness Range Coil Slitting 20,000 lbs. Max. .095 Max. 48”. 10,000 lbs. Max. .187 Max. 24” Slitting-Shearing-Edge Rolling-Edge Filing-Flattening and Cut to Length 403892_Precision_tech_manual_d7.qxd:pg 1 12:37 PM Page 150 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:37 PM Page 151 OSCILLATED COILS MATERIAL SPECIFICATIONS Gauges ranging from .010 to .060 and widths from 1/4 “ to 1-1/2 “. Coil weight up to 2000 lbs. on wooden or fibre cores. OSCILLATED COILS are profitable for long run production jobs by reducing machine downtime, loading and unloading of individual coils. Precision Steel Warehouse can provide their entire product line on oscillated coils: Strip Steel, Stainless Steel, Low Carbon Sheet, Coated Metals, and Brass Phosphor Bronze. The next time you place a large order with Precision Steel, inquire about Oscillated Coils. When it’s right for the job, your savings will be substantial. CUSTOM PROCESSING OF YOUR MATERIAL Precision Steel Warehouse can convert your obsolete inventory into productive material. Many of our customers send their obsolete inventory to us to be slit or sheared into narrower sizes for new jobs. We also accept custom slitting orders for new material that is supplied directly to us from you or your mill source. If you have obsolete material that you wish to convert, or new material direct from your supplier, call our offices at Franklin Park, Illinois or Charlotte, North Carolina. 151 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:38 PM Page 152 PRECISION STEEL® IS YOUR ASSURANCE OF QUALITY. SPC STATISTICAL PROCESS CONTROL While Statistical Process Control programs have been used by companies around the world, Precision Steel is among the first to address the specific needs of the American metal working industry. We will continue to work closely with our customers to refine our procedures to their specific needs. The Precision Steel SPC program at both our Franklin Park and Charlotte facilities is designed to assist our customers in their pursuit of zero defects as required by their customers. Such elements as these provide the foundation for our procedures. 1. Quality Policy Manual The explains the basics of our team approach to the program as it is used in both our Franklin Park and Charlotte operations. 2. Documentation of Controlled Processes A hard copy documentation of such program procedures as gauge control, CPK, CP, and Histograms as well as X and R charting on width tolerance readings. 3. Chemical and Mechanical Properties We maintain complete records of chemical and mechanical properties as well as the heat numbers as they are provided by our mill suppliers. We provide these on every order. Precision can help you reach your goal of zero defects, as required by your customers. For more information, give us a call today. 152 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:38 PM Page 153 PRECISION STEEL® IS YOUR ASSURANCE OF QUALITY. EDI ELECTRONIC DATA INTERCHANGE EDI, Electronic Data Interchange, is a major step toward making volumes of paperwork a thing of the past. Using ASC X12 standards, you’ll be able to send and receive a wide variety of important, daily business documents. The result is much faster and more accurate communications. EDI will give you access to documented information on such topics as: • • • • • • • • Request of Quote and Response Purchase Orders Purchase Order Acknowledgments Purchase Order Change Request and Response Order Status Planning Schedule Shipping Notice Invoice With EDI, we’ll be able to replace these documents with accurate, up-to-theminute information that can always be available on your system. You’ll save time as well as money. This system will work effectively with your JIT (Just In Time) methods to help dramatically reduce your inventory levels and order cycle time. Your partners in progress at Precision Steel are ready to work closely with you to help you realize all the benefits EDI has to offer. We know how to successfully share information on planning as well as scheduling while avoiding potential start-up problems. Once in place, EDI will help Precision Steel work as if we were part of your own inventory and warehousing team. We’ll be able to respond to your needs with greater reliability, speed and cost-saving efficiency than ever before. Simply call us for more information. EDI offers all the financial and business returns you’ve come to expect. 153 403892_Precision_tech_manual_d7.qxd:pg 1 10/17/08 12:38 PM Page 154 PRECISION STEEL® IS YOUR ASSURANCE OF QUALITY. BAR CODE Precision Steel Warehouse, Inc. takes advantage of all the benefits of bar code technology in both internal and external operations. The result has been faster and more efficient service plus greater assurance of accuracy. The same benefits can accrue to you. Bar code technology can convey a wide range of information to help improve your productivity, accuracy and timeliness throughout all phases of materials handling. This includes: • • • • • • Bar Code Material Receipts Coil Identification Location Identification Shop Floor Control Labor Reporting Shipments Bar coding provides tools for access to accurate information. It’s an ideal way to keep track of products as they are shipped or received while simultaneously controlling production and inventory. In short, bar coding can provide real improvements in productivity. We can work with you so that you can gain all benefits of a bar code program for your internal and external use, by providing the information you need for hardware, software, and how the system can work. For more information, please call your Precision Steel representative. Bar coding is just one more way that we can help improve productivity. 154