Cold Drawn Bar

http://www.seahsp.co.kr
Domestic Business Premises
Pohang Plant
40 Goedong-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do, Korea
Tel : 82-54-285-4771 FAX : 82-54-285-4095
Chungju No.1 Plant
103 Chungjusandan 2-ro, Chungju-si, Chungcheongbuk-do, Korea
Tel : 82-43-855-2170 FAX : 82-43-855-2174
Chungju No.2 Plant
34 Chungjusandan 1-ro, Chungju-si, Chungcheongbuk-do, Korea
Tel : 82-43-842-0680 FAX : 82-43-852-0683
Seoul Office
SeAH Tower 24F, 45 Yanghwa-ro, Mapo-gu, Seoul, Korea
Tel : 82-2-6970-0200 FAX : 82-2-6970-0208
Busan Sales Office
SeAH Building 3F, 28 Hakgam-daero 267beon-gil, Sasang-gu, Busan, Korea
Tel : 82-51-321-2620 FAX : 82-51-321-2619
Daegu Sales Office
16 Yutongdanji-ro, Buk-gu, Daegu 702-710, Korea
Tel : 82-53-382-9230 FAX : 82-53-382-9233
Overseas Business Premises
POS-SeAH Steel Wire (Nantong) Co., Ltd.
No. 92 JiangHai Road, Nantong E&T Development Area, JiangSu, China
Tel : 86-513-8356-7277 FAX : 86-513-8356-7271
2013.5.31
Contents
04 Clean & Creative
06 History
08 Corporate Culture & Vision
10 Cold Heading Quality Wire
Product Introduction
Production Process
Application of Products
Facilities & Production Capability
Tolerance of Wire Diameter
Dimensions and Unit Weights
Special Items
15 Seam Free Wire
16 HICON/H2 Bell Type Furnace Heat treated products
18 Cold Drawn Bar
Product Introduction
Production Process
Application of Products
Facilities & Production Capability
Tolerance of Dimensions
22 Free-cutting Steel
23 Centerless Ground Bar
24 Stainless Steel Bar
Features and Applications of each Steel Grade
Special Items
26 Micro Alloy Steel Bar for Rack Bar
28 Quenched & Tampered Bar
Production Process, Production Capability & Features
30 Application Examples of SeAH Products
31 SeAH Group Introduction
Clean & Creative
The pride of producing the best specialty steels,
It s the will of SeAH Special Steel Co., Ltd.,
contained in Clean & Creative.
SeAH Special Steel is producing CHQ wires and CD
bars, the basic materials of automobile parts and
mechanical industry, and is contributing to the growth
and securing competitiveness of automobile industry.
We are playing a major role in supplying materials
to the domestic and the foreign industries with the
advanced technologies and the state - of - the - art
facilities, and we are focusing on developing excellent
materials, reflecting the various needs of customers
with Differentiation of Product and Quality as a growth
strategy, by starting producing successfully localized
Micro Alloy Steel Bar (for Rack Bar) in 1999.
SeAH clearly appreciates that automotive & machinery
components are the core elements to future economic
growth and has tried to best efforts in developing
new technologies for customer satisfaction & needs.
Pohang Plant
Endless challenge to new things...
This is the trace of SeAH Special Steel which
is realizing the dream of World best business.
1995. 11. Earned the ISO 9002 quality
management system certification
1997. 02. Took over the SeAH Metal’s
stainless steel bar business
1986. 11. Established Changwon Steel Co., Ltd.
1988. 03. Completed Pohang CHQ and CD Plant
1988. 05. Took over by SeAH Group
1988. 06. Changed its name into
SeAH Special Steel Co., Ltd.
2001. 03. Received National Tax Service Head citation
2001. 07. Acquired Keuk-Dong Metal Co., Ltd.
(CHQ WIRE firm)
2002. 03. Selected as an enterprise with the best new
labor-management culture(Ministry of Labor)
2002. 10. Introduced a HICON/H2 Bell Type Furnace
for the first time for the local industry
2003. 05. Won the Best Prize in the category of
harmonious management at Korean
Corporate Image Awards
2003. 09. Operated automatic pickling and
coating facilities
2004. 12. Won the Best Prize in the value management
category at Korea Management Awards
2005. 03. Won finance and Economy Minister’s
Citation for a model taxpayer
2005. 11. Completed Chungju No.1 Plant
2008. 10. Completed POS-SeAH Steel Wire Plant
(Nantong, China)
2008. 11. Won National Quality Prize(Production
Innovation Award) at National Quality
Management Competition
2008. 11. Won a medal for exports of USD 30 million
2010. 05. Selected as a model taxpayer
2010. 12. Earned an ISO 14001 environmental
management system certification
2011. 04. Completed Chungju No.2 Plant
2011. 06. Initial public offering(KOSPI)
2011. 07. Launched BAR TO BAR business
2011. 12. Launched PEELED BAR business
2012. 09. Completed joint venture agreement
[POS-SeAH Steel Wire (Tianjin) Co., Ltd.] with POSCO
2012. 12. Won Presidential Award at nationwide
Quality Group Competition(seven years in a row)
Corporate Culture & Vision
The global leader with the best competitiveness
in wire-producing Industry.
SeAH Special Steel is creating and maintaining faithful
and reliable relationship with our customers, and is
maximizing the values of all the interest parties such
as stock holders, customers, employees, and suppliers
with Differentiation of Product and Quality as a
growth strategy based on the principles of harmonized,
transparent and ethical management.
SeAH is pursuing reliable, clean, and righteous company
to achieve consistent growth and based on this
philosophy, we are leaping to the global leader with
the best competitiveness in wire industry.
Products
Differentiation
Value
Maximization
Ethical
Management
Righteous
Management
HICON/H2 Bell Type Furnace
Production Process
CHQ WIRE
(Cold Heading Quality Wire)
CHQ Wire is a wire for Cold Heading or Cold Forging
(a processing method in a room temperature), one
method of metal forming. A strict quality level is
required for the internal (structure, internal defects)
and external (dimensions and surface conditions)
properties.
Material
SeAH Special Steel is supplying excellent quality of
CHQ Wire domestic & oversea industries with the
state-of-the-art facilities such as HICON/H2 Bell Type
Furnace and automatic pickling & coating lines, etc.
R
P
A
PC
D
H D
PC
D
A
PC
D
SAIP
PC
D
A
PC
D
SAIP
SAF
PC
D
A
PC
SAF
Packing
Final Inspection
Intermediate Drawing Annealing
Pickling & Coating
Check-ups
Decarburization
Spheroidized Ratio
Tensile Strength
Skin Pass
Inspection on Coating Pickling & Coating
Application of Cold Heading Quality Wire
Carbon steels
Alloy steels
Cr steel Mo steel Mn steel
Cr-Mo steel Ni-Cr-Mo steel
Boron steels
Bearing steels
Spring steels
Technical Data for Application
Application
Material
AISI/SAE
JIS
Wire Drawer Process
Wood Screw
Machine Screw (Siotted)
1008 -1010R
CH8A,CH10A
HD
AIP
Wood Screw (+)
1008 -1010R
CH8A,CH10A
SAIP,AIP
Machine Screw (+)
1008 -1012AI
1010R
CH8A,CH10A,CH12A
SAIP,AIP
HD
Tapping Screw (+)
1015-1016AI
1018-1022R
CH18A,CH22A
SAIP
AIP
Tubular Rivet
1006AI
1006R
CH6A
SAIP
Tubular Rivet (Drilled)
1006AI
1006R
CH6A
HD
Bolt (Automobile)
1045
4135
CH45K
SCM435
SAIP
1008 -1015R
1108 - 1110
CH8A,CH10A,CH22A
HD
1023 -1025AI
1023 -1025SI
CH25K
SAIP
1035 - 1045
4135 - 4140
5135 - 5140
CH25K,CH45K
SCM435,SCM440
SCr440
SAIP
1010 -1020AI
1010 -1020SI
CH10A,CH18A
CH12A
SAIP
Steel Ball
1010 -1015R
5115 - 5120
4115 - 4120
52100
CH10A,CH12A
SCr415,420
SCM415,420
SUJ2
HD
SAIP
SAIP
Socket Screw
4037 - 4042
4035 - 4140
SCM435,440
SAIP
5115 - 5120
4115 - 4120
SCr415,420
SCM415,420
5135 - 5140
4135 - 4140
SCr440
SCM435,440
Piston Pin
5015 - 5020
5115 - 5120
4115 - 4120
SCr415,420
SCM415,420
Special Application (Difficult Cold Forming)
Special Application (Machine and Cold
Forming)
Low-Silicon or Aluminium
Killed Steel Rimmed or
Free Cutting Steel
Nut
Ball Joint Stud
SAIP
SAIP
SAIP
AIP
HD,SAIP
Facilities & Production Capability
Equipment
Quantity
Size Range
Capacity(Ton/year)
21
6
2
47
1
5
2.5 mm - 40.0 mm
4.5 mm - 12.5 mm
-
276,000
74,000
411,000
462,000
2,000
229,000
HICON/H2 Bell Type Furnace
Batch Type Furnace
Pickling & Coating Line
Drawing Machine
Shaving Machine
Off Line Shot Blast
Dimension Tolerance
SAIP /HD
Wire Diameter (mm)
Diameter Tolerance (mm)
Up to 5.00
5.01 - 10.00
10.01 - 16.00
Over 16.01
+ 0 / - 0.02
+ 0 / - 0.03
+ 0 / - 0.04
+ 0 / - 0.05
Out of Roundness (mm)
Below 0.01
Below 0.015
Below 0.02
Below 0.025
SAF
Wire Diameter (mm)
Diameter Tolerance (mm)
Out of Roundness (mm)
+ 0.04 / - 0.04
+ 0.05 / - 0.05
Below 0.04
Below 0.05
Under 16.00
Over 16.00
Dimension and Coil Weight
Wire Diameter (mm)
Up to 5.00
5.01 - 14.00
Over 14.01
Inside Coil Size (mm)
400 - 600
700 - 1,100
1,000 - 1,150
Outside Coil Size (mm)
700 - 850
1,050 - 1,450
1,300 - 1,500
Coil Weight (kgs)
Max. 500
Max. 1,000
Max. 2,000
Seam Free Wire
Seam Free Wire guarantees no defects
from the cold drawing process by
removing certain depth of the surface
(containing surface defects) of raw
materials with a shaving machine. It s
a strategic product to satisfy the quality
requirements of sophisticated items.
Production Process
W/R
Pickling
Annealing
Pickling & Coating
Intermediate Drawing
Annealing
Pickling & Coating
Skin Pass
Applicable steel types and products
Steel Type
Alloy Steel
Bearing Steel
Spring Steel
Stainless Steel
Representative of Steel Type
AISI 8740
SCM435
SUJ2
SUP9
XM-7
Applicable Products
Materials for aircraft
Materials for compress
General & automobile Bearing
General & automobile Bearing
Specific components
HICON/H2 Bell Type Furnace
Heat treated Products
SeAH Special Steel is supplying the heat-treated
products for which the uniformity of spherical
structure, mechanical properties, and coating quality
are dramatically improved through Hydrogen Bell
type furnace.
The HICON/H2 Bell Type Furnace heat-treated products
shows excellent cold forging features and improvement
of the life span of metallic patterns.
Additionally, it shows outstanding improvement for
heat treatment of both CH45F and Bearing steel which
are delicate in heat treatment.
HICON/H2 Bell Type Furnace
Facility Characteristics
Item
Batch type
HICON/H2 Bell Type Furnace
Spheridized &
homogeneous structure
N2+RX or N2
H2
Spherical Structure
& Uniformity
A structural deviation could occur between
the surface and the center of material because of
temperature non-uniformity in a furnace.
There is no structural deviation due to uniform temperature in a
furnace, secured by high convection, which is possible with H2
gas with good heat conductivity and a high speed FAN.
Decarburization
& Carburization
Decarburization and Carbonization could occur
when the sealing is imperfect.
The control of RX gas is not necessary and carburization &
decarburization is impossible due to complete sealing.
Coating Quality
The defect of pickling and inhomogeneity of
coating could be occurred by soot problem.
Hardly is soot found by using HICON/H2 Bell Type Furnace and
coating, quality is homogeneous.
Production Process
CD BAR
(Cold Drawn Bar)
CD Bar is a main material for machinery process such
as grinding or cutting.
It’s premium quality product produced through grinding and fixing to define surface illumination, precise
dimensions and straightness after cutting in a certain
length while cold drawing in a specific dimension with
circle shape or anomaly shapes (hexagon, tetragon,
and octagon, etc.) suitable for machinery process of
raw materials.
Material
Centerless Ground Bars
Annealing
Combined Drawing
Descaling
Eddy Current Test
Polishing & Straightening
Cold Drawn Bars
Straightening
Dimensional
Inspection
Application of Cold Drawn Bar
Carbon steels Alloy steels- Cr steel Mo steel Mn steel / Cr-Mo steel Ni-Cr-Mo steel
Boron steels Bearing steels Spring steels Free cutting steels Stainless steels
Facilities and Production Capability
Equipment
CD Bar
CG Bar
After
Treatment
Quantity
Size Range
Capacity(Ton/year)
4
3
1
2
1
1
1
7
4
1
4
2
4
1
1
3mm - 8mm
4mm - 13mm
7mm - 14mm
8mm - 22mm
10mm - 31mm
20mm - 34mm
19mm - 42mm
9,000
13,000
7,000
22,000
28,000
30,000
29,000
2,000
20,000
3,000
18,000
18,000
4,000
3,000
1,000
Schumag 0B
Schumag IB-5
Schumag IB-6.5
Schumag IB-8
Schumag IIB-15
Schumag IIIB-20
Schumag IIIB-25
Schumag Centerless Grinding M/C
Quenching & Tempering Line
SRA Line
Chamfering In-Line
Chamfering Off-Line
Cutting Machine
4Roll Straightening M/C
VH 9Roll Straightening M/C
Dimension Tolerance
Grade
Grade6(h6)
Grade7(h7)
Grade8(h8)
Grade9(h9)
Grade10(h10)
Grade11(h11)
Up to 3.00
0
- 0.006
0
- 0.010
0
- 0.014
0
- 0.025
0
- 0.040
0
- 0.060
3.01 - 6.00
0
- 0.008
0
- 0.012
0
- 0.018
0
- 0.030
0
- 0.048
0
- 0.075
6.01 - 10.00
-
0
- 0.022
0
- 0.027
0
- 0.036
0
- 0.043
0
- 0.058
0
- 0.070
0
- 0.090
10.01 - 18.00
0
- 0.015
0
- 0.018
0
- 0.110
18.00 - 30.00
-
0
- 0.021
0
- 0.033
0
- 0.052
0
- 0.084
0
- 0.130
Over 30.01
-
0
- 0.025
0
- 0.039
0
- 0.062
0
- 0.100
0
- 0.160
Diameter(mm)
Free-Cutting Steel
Free-cutting steel, with the improved properties for machine process and cutting by
adding S (sulfur), Bi (bismuth), etc., is a material for processing precision parts used in
electronic parts, automobile parts, OA & optical instruments.
SUM24L
12L14
1214Bi
S45CL
SUM22
SUM23
Comparison of Machinability and Price
Price
Machinability
Centerless Ground Bar
CG Bar is superior in terms of dimensional precision to CD Bar.
The surface is sleek and also guarantees JIS h7.
Roundness
Free Cutting
303F
S45CL
SUM24L
To be used for
precision machine
components.
Roughness
Stainless Steel Bar
Typical Grades
Types
Chemical Comp.
304(L)
316(L)
303F
303C
410
416
420F
430F
18Cr - 8Ni
18Cr - 12Ni - 2.5Mo
18Cr - 8Ni - 3Mn - S
18Cr - 8Ni - S - Cu
13Cr
13Cr - S
13Cr - 0.3C - S
18Cr - S
Characteristic
Most Widely Used Steel
Superior Corrosion Resistance
Better Machinability
Low Magnetic
Good Quench-hardenable
Better Machinability
Good Quench-hardenable
Better Machinability
Usage
Shaft, Bolt, Nut
Chemical industry
Free Cutting Parts
Electric Shaft
Shaft, Bolt
Shaft
Shaft
Free Cutting Parts
Comparison of Machinability and Corrosion Resistance
Corrosion Resistance
Machinability
Stainless Steel
Type
Chemical Composition(%)
KS
C
Cr
Ni
Mo
Others
(ASTM)
AISI
DIN
S20200
202
1.4371
-
-
S30200
302
1.4319
-
S : 0.20 / 0.28
S30300
303
1.4305
-
S : 0.30 / 0.35
-
-
-
-
S : 0.25 / 0.30
Cu : 2.5 / 3.0
-
-
-
-
S : 0.015 / 0.030
S30400
304
1.4301
-
304H
-
-
304M
-
-
304S
-
304HC
0.04
-
304HC
-
304L
304L
0.03
S30403
304L
1.4306
XM7
XM7
0.017
-
S 0.010
N 0.050
S 0.010
N 0.050
S 0.005
N 0.030
Cu : 2.00 / 2.40
N 0.035
S : 0.015 / 0.030
(W.R : 0.010 )
Cu : 3.10 / 3.50
N 0.015
-
0.04
S30430
302HQ
-
305
305
0.04
-
S 0.015
S30500
305
1.4303
309
309
0.06
-
-
S30908
309S
1.4828
316
316
0.04
0.07
1.4401
0.03
S : 0.015 / 0.030
(W.R : 0.010)
S : 0.015 / 0.030
(W.R : 0.010)
316
316L
S31603
316L
1.4404
316F
316F
S : 0.10 / 0.15
-
316F
1.4427
316Ti
316Ti
0.05
0.07
0.03
0.06
Ti : 5 C / 0.80
S31635
316Ti
1.4571
Y316
Y316
0.050
Mn: 1.80 / 2.10
-
ER316
-
Y316L
Y316L
0.023
Mn: 1.80 / 2.10
-
ER316L
1.4430
Y316
LSi
Y316
LSi
0.025
2.00
2.30
2.00
2.30
1.90
2.20
2.00
2.30
2.00
3.00
2.00
3.00
2.00
2.50
S31600
316L
7.00
8.00
8.00
10.00
8.00
9.00
8.00
9.00
9.00
9.50
8.00
8.50
8.00
8.40
9.00
9.40
10.00
10.40
8.10
8.50
9.00
10.40
9.50
9.90
12.00
13.00
13.50
14.00
10.00
11.00
12.00
12.50
11.00
11.50
12.00
13.00
11.00
14.00
11.50
12.00
12.00
13.00
Mn : 7.50 / 8.50
N : 0.25 / 0.35
304S
Si : 0.70 / 0.90
-
430
430
0.04
-
N 0.040
S43000
430
1.4016
430Ti
430Ti
-
Ti : 0.25 / 0.80
-
-
-
410
410
-
-
S41000
410
1.4006
416
416
-
S : 0.20 / 0.30
S41600
416
1.4005
420J1
420J1
-
-
S42000
420
1.4021
420J2
402J2
0.03
0.09
0.10
0.14
0.10
0.14
0.19
0.22
0.30
0.40
17.50
18.50
17.50
19.00
17.00
18.00
17.00
18.00
17.00
17.50
18.00
18.50
18.30
18.90
18.20
18.80
18.00
18.60
18.00
18.60
18.00
18.60
17.30
17.70
17.00
18.00
23.00
25.00
16.00
17.50
16.50
17.00
16.00
18.00
16.50
17.50
18.00
20.00
18.00
20.00
18.00
19.00
16.60
17.20
16.50
19.50
11.50
13.00
12.00
13.00
12.00
13.00
12.00
14.00
-
304M
0.08
0.10
0.065
0.085
0.03
0.06
0.06
0.10
0.03
0.06
0.05
0.08
0.06
0.08
0.03
0.05
-
-
S42000
420
1.4028
(JIS)
202
202M
302
302
303
303
303F
303C
304
304H
AUSTENITE
AUSTENITE
304
MARTENSITE FERRITE
MARTENSITE
FERRITE
Corresponding Standards
UNS NO
-
ER316LSi 1.4430
Micro Alloy Steel Bar for Rack Bar
Micro Alloy Steel Bar was mass-produced and applied to new cars from 1999 by developing Micro Alloy
Steel Bar for rack bar in cooperation with consumers and domestic raw material makers in 1996.
It has contributed to the competitiveness of domestic automobile technologies by localization, and it is being
applied to more new models because of its competitiveness of quality and cost.
The rack bar is a key safety part, deciding the direction of a car by transmitting a drivers steering wheel
control to the wheels so the materials for rack bar should secure quality features such as homogeneous
material properties, durability, wear-resistance, easy cutting during process, hardenability of heat treatment,
and straightening, etc.
Multi-function Inspection Tester
UT
ECT
Quenched & Tempered Bar
Q/T Bar is used mainly for stud bolts by threading, and
its application includes high temperature pressure stud
bolts and high strength long axle materials.
SeAH Special Steel is exporting Q/T Bar to oversea
customers(America, South Asia) by developing Q/T Bar
in 1999, and intensively producing and selling Q/TBar
by installing one Quenching&Tempering Line on Nov.2001.
Competitiveness is guaranteed through cost saving,
delivery time curtailment, and productivity improvement
by dramatically improving manufacturing process by
using Q/T Bar directly.
Production Process
W/R
Pickling
Annealing
Combined Drawing M/C
Q/T Annealing
Straightening
Production Capability and Features
Capability
Features
Applicable
Steel Grade
Traditional
process
Production Diameters
Capacity(Ton/month)
6.0mm - 39.5mm
600
No decarburization due to induction heater type
Homogeneous mechanical properties and structure
No need for consumers straightening process due to high quality straightness
Materials for B7, L7, B16
Material for stud bolts, high strength long axles
High strength long axles
AISI4140, SNB16
S45C, SUJ2
CD Bar
Cutting
Q/T
Straightening
Threading
improving process
Improved
process
CD Bar
Cutting
Threading
Q/T
Straightening
RACK
BAR
PISTON
ROD
DRIVE
SHAFT
TIE
ROD
Application Examples of SeAH Products for Automobile Main Parts
Piston Rod of Shock Absorber
Product name : CH45FS CD BAR
Important quality control item : Surface Defects
Constant Velocity Joint of Drive Shaft
Product name : SAE 1541M CD BAR
AISI 1050SH CD BAR
AISI10b38 CD BAR
Important quality control item : Surface Defects, Strength of Twist
(decarburization, S.A ratio)
Tie Rod of Control
System Gear Box
Product name :
CH45FCR CHQ Wire
Important quality control item :
Surface Defects, Hardenability
(chemical components, S.A ratio,
decarburization)
Rack Bar of Steering System Gear Box
Product name : POSMA45R CD Bar
SAE1141M CD Bar
Important quality control item : Surface Defects,
Mechanical Properties,
Straightness,
Residue Stress from Drawing
Manufacturing Part
Service I Other Part
IT Part
SeAH Steel Corp.
SeAH Holdings Corp.
SeAH Networks Co., Ltd.
SeAH Tower 25~27F, 45 Yanghwa-ro,
Mapo-gu, Seoul, Korea
Tel : 82-2-6970-1000
Fax: 82-2-6970-1199
Main business : manufacturing and
sales of steel pipe and color steel plate
SeAH Tower 30F, 45 Yanghwa-ro,
Mapo-gu, Seoul, Korea
Tel : 82-2-6970-0110
Fax: 82-2-6970-0127
Main business : investment and
management consulting
SeAH Tower 3F, 45 Yanghwa-ro,
Mapo-gu, Seoul, Korea
Tel : 82-2-6970-1500
Fax: 82-2-6970-1518
Main business : system integration(SI),
networks integration(NI), multimedia
integration(MI), solution etc.
SeAH Besteel Corp.
SeAH Logistics Corp.
522 Oehang-ro, Gunsan-si, Jeollabuk-do,
Korea
Tel : 82-63-460-8114
Fax: 82-63-460-8560
Main business : special steel parts, large-size
single product, railroad & wheels
348 Cheolgang-ro, Nam-gu,
Pohang-si, Gyeongsangbuk-do, Korea
Tel : 82-54-278-8701
Fax: 82-54-278-8120
Main business : inland trucking, freight
forwarder, cargo management,
warehousing
Korea Bundy Corp.
19 Silli-gil, Jinwi-myeon, Pyeongtaek-si,
Gyeonggi-do, Korea
Tel : 82-31-662-3335
Fax: 82-31-662-8502
Main business : manufacturing and sales of
small diameter tube, wire condenser ass y
ESAB SeAH Corp.
26-11 Samjeongja-ro 51beon-gil,
Seongsan-gu, Changwon-si,
Gyeongsangnam-do, Korea
Tel : 82-55-289-8111
Fax: 82-55-289-8864
Main business : manufacturing and sales of
welding materials (flux cored wire, welding rod)
SeAH Metal Co., Ltd.
280 Gongdan-ro, Seongsan-gu,
Changwon-si, Gyeongsangnam-do, Korea
Tel : 82-55-266-8777
Fax: 82-55-283-7404
Main business : manufacturing and sales
of stainless wire
Haiduk Steel Corp.
SeAH Tower 23F, 45 Yanghwa-ro, Mapo-gu,
Seoul, Korea
Tel : 82-2-6970-0700
Fax: 82-2-6970-0769
Main business : sales of steel plate
and other steel materials
SeAH M&S Corp.
188 Sandanjungang-ro, Yeosu-si,
Jeollanam-do, Korea
Tel : 82-61-807-7114
Fax: 82-61-807-7129
Main business : manufacturing
molybdenum products
SeAH E&T Corp.
252 Songdeok-ro 212beon-gil, Daesong-myeon,
Nam-gu, Pohang-si, Gyeongsangbuk-do, Korea
Tel : 82-54-727-2301
Fax: 82-54-727-2303
Main business : facilities engineering,
various gas tank manufacturing
Hai-Am Art and Scholarship Foundation
SeAH Tower 30F, 45 Yanghwa-ro, Mapo-gu,
Seoul, Korea
Tel : 82-2-6970-0110
Fax: 82-2-6970-0127
Dreamline Co., Ltd.
IT Venture Tower 9F, 135 Jungdae-ro,
Songpa-gu, Seoul, Korea
Tel : 82-2-6007-6200
Fax: 82-2-6007-6299
Main business : lease of electric
communication lines and facilities