Engineering Data Manual

Engineering Data Manual
Experience a
World of Possibilities
6226 West 74th Street
Chicago, IL 60638
800–376–6000
FAX 708–563–1950
www.independencetube.com
INDEPENDENCE TUBE CORPORATION founded in 1972, is a leading manufacturer of square, rectangular
and round structural steel tubing. Independence Tube produces structural steel tubing from prime steel on the
most advanced tube mill equipment in the industry. High frequency welding techniques assure the ultimate in
weld integrity. Structural steel tubing’s ease of fabrication, high strength and pleasing appearance make it a
“First Choice” material. Potential applications are as unlimited as the designer’s imagination.
Independence Tube began in a 53,000 square foot facility located on the southwest side of Chicago. Today,
we operate two Divisions in Illinois (Chicago and Marseilles) and our third manufacturing facility (opened in August
of 2006) in Decatur, Alabama. Combined operations comprise over 1.3 million square feet under roof and over
70 acres of property.
CHICAGO, IL
DECATUR, AL
MARSEILLES, IL
INDEPENDENCE TUBE produces steel tubing to ASTM A500, ASTM A252 and ASTM A513.
Sizes offered are:
ROUNDS – 1.66" OD x .109" wall through 16" OD x .625" wall
SQUARES – 2" SQ x .109" wall through 12" SQ x .625" wall
RECTANGLES – 2½" x 1½" x .125" wall through 16" x 8" x .625" wall
VALUE ADDED SERVICES offered are:
I.D. flash removal HSLA grades Domex© In–house band saw cutting
Pickled and oiled Weld on the short side Special tolerances Mitre cutting
ROLLING SCHEDULE
With a yearly published on-time rolling schedule second to none in the industry, you
can manage your inventory more closely, knowing that material will be ready when promised. Independence Tube
also offers Vendor Managed Inventory (VMI), Electronic Data Interchange (EDI) and bar coding; all of which have
become very important services in the management of inventory and communications.
WWW.INDEPENDENCETUBE.COM / WWW.ITCTUBE.COM
The next time you are on-line, please take a moment to visit our new web site. There you will find our Company
history and product information downloads. In addition, www.itctube.com is our 24/7 on-line Customer Secure
Portal which will allow you to view inventory, place orders and inquiries, release loads and view and download
open order reports and test reports.
INDEPENDENCE TUBE is an active member of the American Institute of Steel Construction (AISC) and the
Metals Service Center Institute (MSCI), the Farm Equipment Manufacturers Association (FEMA), the Pile Driving
Contractors Association (PDCA) and the National Association of Pipe Distributors (NASPD) and its products can
be purchased at steel service centers across North America.
1
ASTM A500
Cold-Formed ERW Round, Square and Rectangular
Structural Steel Tubing in Grades B And C.
All Independence Tube structural tubing is produced in accordance with the mechanical
and chemical property requirements of ASTM A500, Grades B & C.
Outside Dimension Tolerances for
Square and Rectangle Structural Tubing
Chemical Composition
Carbon, max %
Manganese, max %
Phosphorus, max %
Sulphur, max %
Copper, when copper steel is specified, min %
Grade B
0.26
---0.04
0.05
0.20
Grade C
0.23
1.35
0.04
0.05
0.20
Mechanical Properties - Shapes
Grade B
Tensile Strength, min psi
58,000
Yield Strength, min psi
46,000
Elongation in 2" min
23%*
*.180" wall and over
**.120" wall and over
Grade C
62,000
50,000
21%**
Mechanical Properties -Rounds
Grade B
Tensile Strength, min psi
58,000
Yield Strength, min psi
42,000
Elongation in 2" min
23%*
*.180" wall and over
**.120" wall and over
Grade C
62,000
46,000
21%**
Largest Outside Dimension (in)
2½" and under
2½" to 3½"
3½" to 5½"
5½" and over
Plus/minus*
0.020
0.025
0.030
1%
* Tolerance includes allowance for convexity or concavity. For
rectangular tubing having a ratio of outside large to small flat
dimension less than 1.5, and for square tubing, the tolerance
on small flat dimension shall be identical to the large flat dimension tolerance. For rectangular tubing having a ratio of outside
large to small flat dimension in the range of 1.5 to 3.9 inclusive,
the tolerance on small flat dimension shall be 1.5 times the large
flat dimension tolerance. For rectangular tubing having a ratio of
outside large to small flat dimension greater than 3.0, the tolerance on small flat dimension shall be 2.0 times the permissible
variations in large flat dimension.
NOTES:
Straightness: .025" times the number of ft of
total length
Squareness of sides: Deviation from 90˚ by ±2% max
Radius of Corners: The radius of any outside corner shall
not exceed 3.0 times the specified wall thickness.
Wall Thickness: ±10% of nominal wall thickness, as
measured at the center of the flat.
Permissible Variations in Twist for
Square and Rectangular Structural Tubing
Specified Outside Large Flat
Dimension
Over 1½" to 2½"
Over 2½" to 4"
Over 4" to 6"
Over 6" to 8"
Over 8"
Maximum twist
in 3 feet
0.062"
0.075"
0.087"
0.100"
0.112"
Call your Account Representative for floor stock
availability or go on-line at www.independencetube.com.
2
HSS Squares
Independence Tube produces squares from
2" SQ x .125" wall through 12" SQ x .625" wall
to ASTM A500.
CHICAGO:
2" SQ through 6" SQ
Walls from .125" to .375"
MARSEILLES:
2" SQ through 10" SQ
Walls from .125" to .625"
DECATUR:
2½" SQ through 12" SQ
Walls from .188" to .625"
In-house band saw cutting available.
Flash removal available on some sizes—contact your
Independence Tube Sales Representative for details.
The information presented in this publication has been prepared in accordance with recognized engineering principles and is for general information only.
While it is believed to be accurate, this information should not be used or relied upon for any specific application without competent professional examination and verification of its accuracy, suitability and applicability by a licensed professional engineer, designer or architect. The publication of the material
contained herein is not intended as a representation or warranty on the part of “Independence Tube Corporation” or of any other person named herein, that
this information is suitable use of this information assumes all liability arising from such use. Caution must be exercised when relying upon specifications
and codes developed by other bodies and incorporated by reference herein since such material may be modified or amended from time to time subsequent
to the printing of this publication. Independence Tube Corporation bears no responsibility for such material other than to refer to it and incorporate it by
reference at the time of the initial publication of this edition. To the best of our knowledge, all information contained herein is correct at the time of publication. Independence Tube Corporation does not assume responsibility for errors or oversights resulting from the use of the information contained herein.
3
HSS/Square Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
Nominal Outside
ERW
12 X 12
10 X 10
9x9
Wall Thickness
5/8
1/2
3/8
5/16
1/4
5/8
1/2
3/8
5/16
1/4
3/16
1/2
3/8
5/16
1/4
3/16
Weight per Foot
93.34
76.07
58.10
48.86
39.43
76.33
62.46
47.90
40.35
32.63
24.73
55.66
42.79
36.10
29.23
22.18
Design Wall Thickness
0.581
0.465
0.349
.291*
.233*
0.581
0.465
0.349
0.291
.233*
.174*
0.465
0.349
0.291
0.233
.174*
Effective length KL in feet
Fy = 50 ksi
0
771
627
480
388
275
630
516
396
333
254
162
459
354
298
241
154
2
762
620
474
385
273
621
508
390
328
251
160
451
348
293
237
153
3
757
615
471
383
272
615
504
387
326
250
159
447
345
290
235
152
4
751
611
468
381
271
609
500
384
323
248
158
442
341
287
232
151
5
745
606
464
379
269
603
495
380
319
246
158
438
337
284
230
150
6
739
601
461
377
268
597
489
376
316
245
156
432
333
280
227
148
7
732
586
456
374
267
590
484
372
313
243
155
426
329
277
224
147
8
725
590
452
372
265
285
478
367
309
241
154
419
324
273
221
146
9
718
584
448
369
263
574
471
362
305
238
153
413
319
269
218
144
10
710
578
443
366
262
566
465
357
301
236
152
406
314
264
214
143
11
702
572
439
363
260
558
458
352
296
234
150
399
309
260
211
141
12
694
565
434
360
258
549
451
347
292
231
149
394
303
255
207
140
13
686
559
428
357
256
539
443
341
287
228
148
384
297
250
203
138
14
677
552
423
354
254
530
436
336
283
225
146
376
291
245
199
136
15
668
544
418
350
252
520
428
330
278
222
144
367
285
240
195
134
16
658
537
412
346
249
510
420
324
272
219
143
359
278
235
191
132
17
649
529
406
341
247
99
411
317
267
216
141
350
272
229
186
130
18
639
521
400
336
245
488
402
311
262
212
139
341
265
224
181
128
19
628
513
394
331
242
477
393
304
256
207
137
331
258
218
177
125
20
618
505
388
325
239
466
384
297
250
203
135
322
251
212
172
123
21
607
486
381
320
237
454
375
290
245
198
133
312
243
206
167
120
22
596
487
375
315
234
442
365
283
238
193
131
301
235
199
162
118
23
585
478
368
309
231
429
355
275
232
188
129
291
228
193
157
115
24
573
469
361
303
228
417
345
268
226
183
127
280
219
186
151
112
25
562
460
354
297
225
404
335
260
219
178
124
269
211
179
146
109
26
550
50
347
291
222
390
324
252
213
173
122
258
203
172
140
105
27
537
441
339
285
218
377
313
244
206
167
119
246
194
165
134
102
28
525
431
332
279
215
363
302
236
199
162
116
234
185
157
128
98
29
512
420
324
273
211
349
291
227
182
156
113
222
176
150
122
93
30
499
410
316
266
208
334
279
218
185
150
110
209
166
142
116
89
31
486
399
309
260
204
349
267
209
177
145
107
197
157
134
110
84
32
472
389
300
253
200
304
255
200
170
138
103
184
147
126
103
79
33
459
378
292
246
195
288
243
191
162
132
100
173
138
118
97
74
34
445
367
284
239
191
272
230
181
154
126
96
163
130
112
91
70
35
430
355
275
232
186
257
217
172
146
119
91
154
123
105
86
66
36
416
344
266
225
182
243
205
162
138
113
87
146
116
99
81
62
37
401
332
257
217
177
230
194
154
131
107
82
138
110
94
77
59
38
385
320
248
210
171
218
184
146
124
101
78
131
104
89
73
56
39
370
307
239
202
165
207
175
138
117
96
74
124
99
85
69
53
40
354
295
230
194
158
197
166
131
112
92
70
118
94
81
66
51
6.06
PROPERTIES
Area, In²
25.7
20.9
16.0
13.4
10.8
21.0
17.2
13.2
11.10
8.96
6.76
15.30
11.80
9.92
8.03
I, In 4
548
457
357
304
248
304
256
202
172
141
108
182
145
124
102
78
r, In.
4.62
4.68
4.73
4.76
4.79
3.80
3.86
3.92
3.94
3.97
4.00
3.45
3.51
3.54
3.56
3.59
B, Bending Factor
0.281
0.274
0.269
0.264
0.261
0.345
0.336
0.327
0.323
0.318
0.313
0.378
0.366
0.360
0.354
0.349
a ÷ 106
81.8
68.2
53.3
45.4
37.0
45.4
38.2
30.2
25.7
21.1
16.1
27.2
21.7
18.5
15.2
11.7
4
HSS/Square Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
Nominal Outside
ERW
8X8
7X7
6X6
Wall Thickness
5/8
1/2
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
1/8
Weight per Foot
59.32
48.85
37.69
31.84
25.82
19.63
50.81
42.05
32.58
27.59
22.42
17.08
42.30
35.24
27.48
23.34
19.02
14.53
9.86
Design Wall Thickness 0.581
0.465
0.349
0.291
0.233
.174*
0.581
0.465
0.349
0.291
0.233
.174*
0.581
0.650
0.349
0.291
0.233
0.174
.116*
Fy = 50 ksi
492
405
312
263
213
146
420
348
269
228
185
137
351
292
227
193
157
119
69
482
397
306
258
209
144
410
340
263
223
181
135
341
284
221
188
153
116
68
3
477
393
303
255
207
143
405
336
260
220
179
134
335
279
218
185
151
115
67
4
471
388
299
252
204
142
398
330
256
217
176
132
328
284
214
181
148
113
66
5
464
382
295
249
202
141
381
325
252
213
173
131
311
268
209
178
145
110
65
6
457
377
291
245
199
139
384
319
247
209
170
129
313
262
204
174
142
108
64
7
449
370
286
241
196
138
376
312
242
205
168
127
304
255
199
169
138
105
63
8
441
364
281
237
192
136
367
305
237
201
164
124
295
247
247
165
135
103
62
9
432
357
276
233
189
135
358
298
232
196
160
121
285
240
188
160
131
100
61
10
423
350
271
228
185
133
348
290
226
192
156
118
275
231
181
155
127
97
60
11
414
342
265
224
181
131
338
282
220
187
152
115
264
223
175
149
122
93
58
12
404
334
259
219
178
129
328
274
213
181
148
112
253
214
168
143
118
90
57
13
394
326
253
214
173
127
317
265
207
176
144
109
241
204
161
138
113
86
55
14
383
317
246
208
169
124
306
256
200
170
139
106
228
194
153
131
108
83
54
15
372
308
240
203
165
122
294
246
193
164
134
102
215
184
146
125
103
79
52
16
361
299
233
197
160
119
281
236
186
158
128
98
202
173
138
118
97
75
50
17
349
290
226
191
155
117
269
226
178
152
124
95
188
162
129
111
92
71
48
18
337
280
218
185
151
114
256
216
170
145
119
91
173
150
121
104
86
66
45
19
324
270
211
179
145
111
242
205
162
138
114
87
158
138
111
96
80
62
43
20
311
259
203
172
140
107
228
193
153
131
108
82
143
126
102
89
74
57
39
21
298
249
195
166
135
103
213
182
145
124
102
78
130
114
93
81
67
53
36
22
284
238
187
159
130
99
198
170
136
117
96
74
118
104
84
74
61
48
33
23
270
226
178
152
124
95
183
157
126
109
90
69
108
95
77
67
56
44
30
24
255
215
170
145
118
90
168
144
117
101
84
64
99
87
71
62
52
40
28
25
240
203
161
137
112
86
155
133
108
93
77
59
91
80
65
57
48
37
26
26
224
190
151
129
106
81
143
123
100
86
72
55
85
74
60
53
44
34
24
27
209
177
142
122
100
77
133
114
92
80
66
51
78
69
56
49
41
32
22
28
194
165
132
114
93
72
123
106
86
74
62
47
73
64
52
45
38
30
20
29
181
154
123
106
87
67
115
99
80
69
58
44
68
60
49
42
35
28
19
30
169
144
115
99
81
63
107
92
75
65
54
41
63
56
45
40
33
26
18
31
158
135
108
93
76
59
101
87
70
61
50
39
59
52
43
37
31
24
17
32
148
126
101
87
71
55
94
81
66
57
47
36
56
49
40
35
29
23
16
33
140
119
95
82
67
52
89
76
62
53
44
34
52
46
38
33
27
21
15
34
132
112
90
77
63
49
84
72
58
50
42
32
49
43
35
31
26
20
14
35
124
106
85
73
60
46
79
68
55
48
40
30
47
41
33
29
24
19
13
36
117
100
80
69
56
43
75
64
52
45
37
29
44
39
32
27
23
19
12
37
111
95
76
65
53
41
71
61
49
43
35
27
37
30
26
22
17
12
38
105
90
72
62
51
39
67
58
47
40
34
26
28
25
21
16
11
39
100
85
68
59
48
37
64
55
44
38
32
24
20
15
11
40
95
81
65
56
46
35
60
52
42
36
30
23
Area, In²
16.4
13.5
10.4
8.76
7.10
5.37
14.0
11.6
8.97
7.59
6.17
4.67
11.7
9.74
7.58
6.43
5.24
3.98
2.70
I, In4
146
125
99.6
85.6
70.7
54.4
93.3
80.5
64.9
56.1
46.5
36.0
55.1
48.2
39.4
34.3
28.6
22.3
15.5
r, In.
2.99
3.04
3.10
3.13
3.15
3.80
2.58
2.63
2.69
2.72
2.75
2.77
2.17
2.23
2.28
2.31
2.34
2.37
2.39
B, Bending Factor
0.449
0.432
0.418
0.409
0.402
0.395
0.525
0.504
0.484
0.474
0.464
0.454
0.624
0.606
0.577
0.562
0.550
0.535
0.523
a ÷ 106
21.8
18.7
14.9
12.8
10.6
8.1
13.9
12.0
9.69
8.38
6.94
5.38
8.23
7.20
5.88
5.12
4.27
3.33
2.31
Effective length KL in feet
0
2
PROPERTIES
5
HSS/Square Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
ERW
5½ X 5½
5X5
4½ X 4½
4X4
3/8
5/16
1/4
3/16
1/8
1/2
3/8
5/16
1/4
3/16
1/8
3/8
5/16
1/4
3/16
1/8
1/2
3/8
5/16
1/4
3/16
1/8
24.93
21.21
17.32
13.25
9.01
28.43
22.37
19.08
15.62
11.97
8.16
19.82
16.96
13.91
10.70
7.31
21.63
17.27
14.83
12.21
9.42
6.46
0.349
0.291
0.233
0.174
.116*
0.465
0.349
0.291
0.233
0.174
.116*
0.349
0.291
0.233
0.174
.116*
0.485
0.349
0.291
0.233
0.174
0.116
Fy = 50 ksi
206
176
143
109
66
236
185
158
129
98
63
164
140
115
88
60
181
143
123
101
77
53
200
170
139
106
65
228
179
153
125
95
62
158
135
111
85
58
172
137
118
97
74
51
197
167
137
104
64
223
175
149
122
93
61
154
132
108
83
57
167
133
114
94
72
50
192
164
134
102
63
217
171
146
119
91
60
150
128
105
80
55
160
128
110
91
70
48
188
160
131
100
62
211
166
142
116
89
59
145
124
102
78
53
153
123
106
87
67
46
183
156
127
97
61
204
161
137
113
86
57
139
119
98
75
52
146
117
101
83
64
44
177
151
124
94
60
197
155
133
109
83
56
133
114
94
72
50
137
111
96
79
61
42
172
146
120
91
58
188
149
128
105
80
55
127
109
90
69
47
128
104
90
75
58
40
165
141
116
88
57
180
143
122
101
77
53
120
103
86
66
45
118
97
84
70
54
38
159
136
111
85
56
171
136
117
96
74
51
113
97
81
62
43
108
89
78
65
50
35
152
130
107
82
54
161
129
111
91
70
48
105
91
76
58
40
97
81
71
59
46
32
145
124
102
78
52
151
121
104
86
67
46
97
84
70
54
38
86
72
63
54
42
30
138
118
97
74
50
141
113
98
81
63
43
89
77
65
50
35
73
63
56
47
38
27
130
112
92
71
48
130
105
91
76
59
40
80
70
59
46
32
63
54
48
41
33
23
122
105
86
67
46
118
96
84
70
54
38
70
62
53
41
29
55
47
42
36
29
20
113
98
81
62
43
106
87
76
64
50
35
62
55
47
36
26
48
41
37
32
25
18
104
90
75
58
40
94
78
68
57
45
31
55
49
41
32
23
43
37
33
28
22
16
95
83
69
53
37
84
69
61
51
40
28
49
43
37
29
20
38
33
29
25
20
14
86
75
62
49
34
75
62
55
46
36
25
44
39
33
26
18
34
29
26
22
18
13
77
68
56
44
31
68
56
49
42
33
23
40
35
30
23
16
31
26
24
20
16
11
70
61
51
40
28
61
51
45
38
30
21
36
32
27
21
15
28
24
21
18
15
10
64
56
46
36
25
56
46
41
34
27
19
33
29
25
19
14
26
22
20
17
13
9
58
51
42
33
23
51
42
37
31
25
17
30
27
23
18
12
23
20
18
15
12
9
54
47
39
30
21
47
39
34
29
23
16
28
24
21
16
11
18
16
14
11
8
49
43
36
28
20
43
36
32
27
21
15
25
22
19
15
11
13
10
7
46
40
33
26
18
40
33
29
25
19
14
23
21
18
14
10
42
37
31
24
18
37
31
27
23
18
13
22
19
16
13
9
39
34
29
22
16
35
29
25
21
17
12
18
15
12
8
37
32
27
21
15
32
27
23
20
16
11
11
8
34
30
25
20
14
30
25
22
18
15
10
32
28
23
18
13
23
20
17
14
10
30
26
22
17
12
16
13
9
28
25
21
16
11
27
23
19
15
11
22
18
14
10
14
9
8
PROPERTIES
6.88
5.85
4.77
3.63
2.46
7.88
6.18
5.26
4.30
3.28
2.23
5.48
4.68
3.84
2.93
2.00
6.02
4.78
4.10
3.37
2.58
1.77
29.7
25.9
21.7
17.0
11.8
26.0
21.7
19.0
16.0
12.6
8.8
15.3
13.5
11.4
9.02
6.35
11.9
10.3
9.14
7.80
6.21
4.40
2.08
2.11
2.13
2.16
2.19
1.82
1.87
1.90
1.93
1.96
1.99
1.67
1.70
1.73
1.75
1.78
1.41
1.46
1.49
1.52
1.55
1.58
0.637
0.621
0.604
0.587
0.573
0.758
0.712
0.692
0.672
0.651
0.634
0.806
0.780
0.758
0.731
0.709
1.01
0.928
0.897
0.864
0.831
0.805
4.44
3.87
3.24
2.54
1.76
3.88
3.24
2.84
2.39
1.88
1.31
2.28
2.02
1.70
1.35
0.948
1.78
1.54
1.36
1.16
0.927
0.657
6
HSS/Square Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
Nominal Outside
ERW
3½ X 3½
3X3
2½ X 2½
2X2
Wall Thickness
3/8
5/16
1/4
3/16
1/8
3/8
5/16
1/4
3/16
1/8
5/16
1/4
3/16
1/8
1/4
3/16
1/8
Weight per Foot
14.72
12.70
10.51
8.15
5.61
12.17
10.58
8.81
6.87
4.75
8.45
7.11
5.59
3.90
5.41
4.32
3.05
Design Wall Thickness
0.349
0.291
0.233
0.174
0.116
0.349
0.291
0.233
0.174
0.116
0.291
0.233
0.174
0.116
0.233
0.174
0.116
Effective length KL in feet
Fy = 50 ksi
0
123
106
87
67
46
102
88
73
57
39
71
59
46
32
52
41
29
2
116
100
83
64
44
95
82
69
53
37
65
54
43
30
47
37
26
3
112
96
80
62
43
90
79
66
51
35
60
51
40
28
44
35
25
4
107
92
77
59
41
85
74
62
48
33
55
47
37
26
40
32
23
5
101
88
73
56
39
79
69
58
45
31
50
43
34
24
35
28
20
6
95
82
69
53
37
72
63
53
42
29
44
38
30
21
30
24
18
7
88
77
64
50
35
64
57
48
38
27
37
32
26
19
24
20
15
12
8
81
71
59
46
32
56
50
43
34
24
29
26
22
16
18
15
9
73
64
54
43
30
48
43
37
30
21
23
21
17
13
14
12
9
10
65
57
49
38
27
39
36
31
25
18
19
17
14
10
12
10
7
11
56
50
43
34
24
32
29
26
21
15
16
14
12
9
10
8
6
12
47
42
37
29
21
27
25
22
18
13
13
12
10
8
8
7
5
7
6
13
40
36
31
25
18
23
21
18
15
11
11
10
8
6
14
34
31
27
22
15
20
18
16
13
9
10
9
7
5
15
30
27
23
19
13
17
16
14
11
8
7
6
5
16
26
24
21
17
12
15
14
12
10
7
17
23
21
18
15
10
13
12
11
9
6
11
10
18
21
19
16
13
9
19
19
17
15
12
8
20
17
15
13
11
7
21
15
14
12
10
7
11
9
6
22
8
6
7
5
4
4
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
PROPERTIES
7
Area, In²
4.09
3.52
2.91
2.24
1.54
3.39
2.94
2.44
1.89
1.30
2.35
1.97
1.54
1.07
1.74
1.37
0.96
I, In4
6.48
5.84
5.04
4.05
2.90
3.77
3.45
3.02
2.60
1.78
1.82
1.63
1.35
1.00
1.13
0.952
0.712
0.863
r, In.
1.26
1.29
1.32
1.35
1.37
1.05
1.08
1.11
1.14
1.17
0.879
0.908
0.937
0.965
0.805
0.835
B, Bending Factor
1.10
1.05
1.01
0.968
0.929
1.35
1.28
1.21
1.15
1.10
1.61
1.51
1.43
1.34
1.73
1.62
1.52
a ÷ 106
0.968
0.872
0.753
0.605
0.433
0.563
0.515
0.451
0.367
0.266
0.272
0.243
0.202
0.149
0.169
0.142
0.106
HSS Squares Dimension and Section Properties
SQ
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
Wall
Wt per ft
Moment of
Inertia In4
Section
Modulus
In³
Radius of
Gyration
In³
Wt per ft
Moment of
Inertia In4
Section
Modulus
In³
Radius of
Gyration
In³
0.125
3.05
0.486
0.486
0.761
0.188
4.32
0.641
0.641
0.733
0.125
9.86
15.50
5.15
2.39
0.188
14.53
22.30
7.42
0.250
5.41
0.747
0.747
0.704
2.37
0.250
19.02
28.60
9.54
0.125
3.90
0.998
0.799
0.965
2.34
0.313
23.34
34.30
11.40
0.188
5.59
1.350
1.080
2.31
0.937
0.375
27.48
39.50
13.20
0.250
7.11
1.630
2.28
1.300
0.908
0.500
35.24
48.30
16.10
0.313
8.45
2.23
1.820
1.460
0.880
0.625
42.30
55.20
18.40
0.125
2.17
4.75
1.78
1.19
1.17
0.125
11.56
24.80
7.09
2.80
0.188
6.87
2.46
1.64
1.14
0.188
17.08
36.00
10.30
2.77
0.250
8.81
3.02
2.01
1.11
0.250
22.42
46.50
13.30
2.75
0.313
10.58
3.45
2.30
1.08
0.313
27.59
56.10
16.00
2.72
0.375
12.17
3.78
2.52
1.06
0.375
32.58
65.00
18.60
2.69
0.125
5.61
2.90
1.66
1.37
0.500
42.05
80.50
23.00
2.63
0.188
8.15
4.05
2.31
1.35
0.625
50.81
93.40
26.70
2.58
0.250
10.51
5.04
2.88
1.32
0.125
13.26
37.40
9.34
3.21
0.313
12.70
5.84
3.34
1.29
0.188
19.63
54.40
13.60
3.18
0.375
14.72
6.49
3.71
1.26
0.250
25.82
70.70
17.70
3.15
0.125
6.46
4.40
2.20
1.58
0.313
31.84
85.60
21.40
3.13
0.188
9.42
6.21
3.10
1.55
0.375
37.69
100.00
24.90
3.10
0.250
12.21
7.80
3.90
1.52
0.500
48.85
125.00
31.20
3.04
0.313
14.83
9.14
4.57
1.49
0.625
59.32
146.00
36.50
2.99
0.375
17.27
10.30
5.13
1.47
0.125
14.96
53.50
11.90
3.62
0.500
21.63
11.90
5.97
1.41
0.188
22.18
78.20
17.40
3.59
0.125
7.31
6.35
2.82
1.78
0.250
29.23
102.00
22.70
3.56
0.188
10.70
9.02
4.01
1.75
0.313
36.10
124.00
27.60
3.54
0.250
13.91
11.40
5.08
1.73
0.375
42.79
145.00
32.20
3.51
0.313
16.96
13.50
6.00
1.70
0.500
55.66
183.00
40.60
3.45
0.375
19.82
15.30
6.79
1.67
0.625
67.82
216.00
47.90
3.40
0.125
8.16
8.80
3.52
1.99
0.188
24.73
108.00
21.60
4.00
0.188
11.97
12.60
5.03
1.96
0.250
32.63
141.00
28.30
3.97
0.250
15.62
16.00
6.41
1.93
0.313
40.35
172.00
34.50
3.94
0.313
19.08
19.00
7.62
1.90
0.375
47.90
202.00
40.40
3.92
0.375
22.37
21.70
8.68
1.87
0.500
62.46
256.00
51.20
3.86
0.500
28.43
26.00
10.40
1.82
0.625
76.33
304.00
60.80
3.80
0.125
9.01
11.80
4.30
2.19
0.188
29.84
189.00
31.50
4.82
0.188
13.25
17.00
6.17
2.16
0.250
39.43
248.00
41.40
4.79
0.250
17.32
21.70
7.90
2.13
0.313
48.86
304.00
50.70
4.76
0.313
21.21
25.90
9.43
2.11
0.375
58.10
357.00
59.50
4.73
0.375
24.93
29.70
10.80
2.08
0.500
76.07
457.00
76.20
4.68
0.625
93.34
548.00
91.40
4.62
Call your Account Representative for floor stock
availability or go on-line at www.independencetube.com.
SQ
6.00
7.00
8.00
9.00
10.00
12.00
Wall
8
HSS Rectangles
INDEPENDENCE TUBE produces rectangles
from 2½" X 1½" X .125" wall through
16" X 8" x .625" wall to ASTM A500.
CHICAGO:
3" x 1½" through 8" x 4"
Walls from .125" to .375"
MARSEILLES:
2½" x 1½" through 12" x 8"
Walls from .125" to .625"
DECATUR:
3" x 2" through 16" x 8"
Walls from .188" to .625"
In-house band saw cutting available.
Flash removal available on some sizes—contact your
Independence Tube Sales Representative for details.
The information presented in this publication has been prepared in accordance with recognized engineering principles and is for general information only.
While it is believed to be accurate, this information should not be used or relied upon for any specific application without competent professional examination and verification of its accuracy, suitability and applicability by a licensed professional engineer, designer or architect. The publication of the material
contained herein is not intended as a representation or warranty on the part of “Independence Tube Corporation” or of any other person named herein, that
this information is suitable use of this information assumes all liability arising from such use. Caution must be exercised when relying upon specifications
and codes developed by other bodies and incorporated by reference herein since such material may be modified or amended from time to time subsequent
to the printing of this publication. Independence Tube Corporation bears no responsibility for such material other than to refer to it and incorporate it by
reference at the time of the initial publication of this edition. To the best of our knowledge, all information contained herein is correct at the time of publication. Independence Tube Corporation does not assume responsibility for errors or oversights resulting from the use of the information contained herein.
9
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
Nominal Outside
ERW
16 x 8
16 x 4
14 x 10
14 x 6
Wall Thickness
5/8
1/2
3/8
5/16
1/2
3/8
5/16
5/8
1/2
3/8
5/16
1/4
5/8
1/2
3/8
5/16
1/4
3/16
Weight per Foot
93.34
76.07
58.10
48.86
62.46
47.90
40.35
93.34
76.07
58.10
48.86
39.43
76.33
62.46
47.90
40.35
32.63
24.73
Design Wall Thickness
0.581
0.465
.349*
.291*
0.465
.349*
.291*
0.581
0.465 0.349*
.291*
.233*
0.581
0.465
.349*
.291*
.233*
.174*
Effective length KL in feet
Fy = 50 ksi
0
771
627
448
348
516
365
281
771
627
474
371
274
630
516
390
303
222
148
2
758
616
442
344
496
355
274
760
618
469
368
272
615
504
383
298
219
146
3
750
610
439
341
483
349
269
754
613
466
365
270
605
496
378
295
217
145
4
741
603
435
338
469
341
264
747
608
453
363
269
595
488
373
291
214
143
5
732
596
431
335
453
333
258
740
602
459
360
267
583
479
368
287
212
142
6
722
588
426
332
435
324
252
732
596
455
357
265
571
469
361
283
209
140
7
711
579
422
329
416
313
244
724
590
451
354
263
558
459
353
278
206
138
8
700
570
417
325
396
302
237
716
583
446
351
261
544
447
345
373
202
136
9
688
561
411
321
374
290
228
707
576
441
348
259
529
436
336
268
199
134
10
676
551
406
317
351
276
219
697
568
436
344
257
513
423
327
262
195
132
11
663
541
400
313
327
258
208
688
560
430
341
254
497
410
317
256
191
129
12
649
430
394
308
301
240
197
677
552
424
337
252
480
396
307
250
187
127
13
635
519
387
304
274
220
184
667
544
417
333
249
462
382
296
243
182
124
14
620
507
380
299
246
199
170
656
535
411
329
246
443
367
285
236
177
121
15
605
495
373
294
216
178
153
644
526
404
324
243
424
352
274
228
172
118
16
589
482
365
288
190
156
135
633
517
397
320
240
403
336
262
220
167
115
17
573
470
358
283
168
139
129
621
507
390
315
237
382
319
249
211
161
112
18
557
456
349
277
150
124
106
608
497
383
310
233
361
302
236
200
155
108
19
539
443
341
271
135
111
95
596
487
375
305
230
338
284
223
189
149
105
20
522
429
331
264
121
100
86
583
477
367
300
226
315
266
210
178
142
101
21
504
414
321
258
110
91
78
569
466
359
295
223
291
246
195
166
134
97
22
485
399
309
251
100
83
71
555
455
351
289
219
266
227
181
154
126
92
23
466
384
298
243
92
76
65
541
444
342
283
215
243
207
166
141
117
87
24
446
368
286
236
84
69
60
527
433
334
277
211
223
190
152
130
107
82
25
426
352
274
227
78
64
55
512
421
325
271
206
206
176
140
120
99
76
26
405
336
262
219
72
59
51
497
409
316
264
202
190
162
130
111
91
71
27
383
319
249
210
67
55
47
481
397
307
258
198
176
150
120
103
85
66
28
361
302
236
200
51
44
466
384
297
251
193
164
140
112
95
79
61
29
339
284
223
190
449
371
288
243
188
153
130
104
89
74
57
30
317
265
209
178
433
358
278
234
183
143
122
97
83
69
53
31
297
249
196
167
416
345
268
226
178
134
114
91
78
64
50
32
278
233
184
157
399
331
257
218
172
126
107
86
73
60
47
33
262
219
173
148
381
317
247
209
166
118
101
80
69
57
44
34
247
207
163
138
363
303
236
200
160
111
95
76
65
54
41
35
233
195
154
131
344
288
225
191
154
105
90
72
61
50
39
36
220
184
145
124
326
273
214
182
147
99
85
68
58
48
37
37
208
175
138
117
308
258
203
172
140
94
80
64
55
45
35
38
197
165
130
111
292
245
192
163
133
89
76
61
52
43
33
39
187
157
124
106
278
233
182
155
126
85
72
58
49
41
31
40
178
149
118
100
264
221
173
147
120
80
69
55
47
39
30
PROPERTIES
Area, In²
25.7
20.9
16.0
13.4
17.2
13.2
11.1
25.7
20.9
16.0
13.4
10.8
21.0
17.2
13.2
11.1
9.0
6.8
Ix, In4
815
679
531
451
455
360
308
687
573
447
380
310
478
402
317
271
222
170
ly, In4
274
230
181
155
47
38.3
33.2
407
341
267
227
186
124
105
84.1
72.3
59.6
45.9
Ratio rx/ry
1.72
1.72
1.71
1.71
3.11
3.07
3.05
1.30
1.30
1.29
1.29
1.29
1.96
1.96
1.94
1.94
1.93
1.92
ry, ‘In.
3.27
3.32
3.37
3.40
1.65
1.71
1.73
3.98
4.04
4.09
4.12
4.14
2.43
2.48
2.53
2.55
2.58
2.61
Bx, Bending Factor
0.252
0.246
0.241
0.238
0.302
0.293
0.288
0.262
0.255
0.251
0.247
0.244
0.308
0.300
0.291
0.287
0.283
0.278
0.375
0.363
0.354
0.346
0.732
0.689
0.669
0.316
0.306
0.300
0.295
0.290
0.508
0.491
0.471
0.461
0.451
0.442
122.00 101.00 79.30
67.30
67.90
53.80
46.00 103.00 85.60
66.80
56.70
46.30
71.40
60.00
47.30
40.50
33.20
25.40
23.1
7.02
5.72
4.96
39.90
33.90
27.80
18.50
15.70
12.60
10.80
8.90
6.85
By, Bending Factor
ax, ÷ 106
ay, ÷106
40.9
34.3
27.0
60.80
50.90
10
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
ERW
Nominal Outside
14 x 4
12 x 8
Wall Thickness
5/8
1/2
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
Weight per Foot
67.82
55.66
42.79
36.10
29.23
22.18
76.33
62.46
47.90
40.35
32.63
24.73
Design Wall Thickness
0.581
0.465
.349*
.291*
.233*
.174*
0.581
0.465
0.349
.291*
.233*
.174*
Effective length KL in feet
Fy = 50 ksi
561
459
348
269
196
128
630
516
396
325
242
161
538
441
338
262
191
126
619
507
389
321
238
159
524
430
331
257
188
124
612
501
385
318
236
158
507
417
323
251
184
122
604
495
381
315
234
157
489
402
312
245
180
119
597
489
376
312
232
156
469
387
300
239
176
117
588
482
371
308
230
154
447
370
288
231
171
114
579
475
365
305
227
153
424
351
274
223
166
111
569
467
359
301
224
151
399
322
260
214
160
108
559
459
353
296
222
150
372
311
245
205
154
104
548
451
347
292
219
148
344
289
229
194
147
101
537
442
340
287
215
146
314
266
212
181
139
96
526
432
333
281
212
145
283
242
194
167
131
92
513
423
326
275
208
143
250
216
175
151
122
87
501
412
319
268
205
141
218
190
155
135
111
81
488
402
311
262
201
138
192
167
137
119
98
75
474
391
303
255
197
136
170
148
121
105
87
68
460
380
294
248
192
133
151
132
108
94
78
61
446
369
286
241
188
131
136
118
97
84
70
55
431
357
277
234
183
128
123
107
87
76
63
49
416
345
268
226
179
125
111
97
79
69
57
45
400
332
259
218
174
122
101
88
72
63
52
41
384
319
249
210
168
119
93
81
66
58
48
37
368
306
239
202
163
115
85
74
61
53
44
34
351
292
229
194
157
112
78
68
56
49
40
32
333
278
219
185
151
108
73
63
52
45
38
29
315
264
208
176
144
104
59
48
42
35
27
296
249
197
167
137
100
45
39
32
25
277
234
186
168
129
96
30
23
259
219
174
148
122
92
242
204
163
138
114
87
226
191
152
130
107
82
212
179
143
122
100
77
200
169
134
114
94
72
188
159
127
108
89
68
178
150
119
102
84
64
168
142
113
96
79
61
159
134
107
91
75
57
151
127
101
86
71
54
143
121
96
82
67
52
136
115
91
78
64
49
6.76
PROPERTIES
11
Area, In²
18.7
15.3
11.8
9.92
8.03
6.06
21.00
17.20
13.20
11.10
8.96
Ix, In4
373
317
252
216
178
137
396
333
262
224
184
140
ly, In4
47.1
41.1
33.6
29.2
24.4
19
210
177
140
120
98.8
75.7
Ratio rx/ry
2.81
2.78
2.74
2.72
2.70
2.69
1.37
1.37
1.37
1.37
1.36
1.36
ry, ‘In.
1.59
1.64
1.69
1.72
1.74
1.77
3.16
3.21
3.27
3.29
3.32
3.35
Bx, Bending Factor
0.351
0.338
0.328
0.321
0.316
0.310
0.318
0.310
0.302
0.297
0.292
0.290
By, Bending Factor
0.794
0.745
0.702
0.679
0.658
0.638
0.400
0.389
0.377
0.370
0.363
0.357
ax, ÷ 106
55.70
47.30
37.60
32.30
26.60
20.50
59.10
49.70
39.10
33.50
27.50
20.90
ay, ÷106
7.03
6.14
5.02
4.36
3.64
2.84
31.40
26.40
20.90
17.90
14.80
11.30
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
ERW
12 x 6
12 x 4
12 x 2
5/8
1/2
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
1/4
3/16
67.82
55.66
42.79
36.10
29.23
22.18
59.32
48.85
37.69
31.84
25.82
19.63
22.42
17.08
0.581
0.465
0.349
.291*
.233*
.174*
0.581
0.465
0.349
.291*
.233*
.174*
.233*
.174*
Fy = 50 ksi
561
459
354
290
214
143
492
405
312
255
187
124
160
104
547
448
346
285
210
141
472
389
300
248
182
121
150
98
538
441
340
281
208
140
459
379
293
243
179
119
143
94
529
434
335
278
206
138
444
367
284
238
175
117
134
89
519
425
329
274
203
136
428
354
274
231
171
114
123
84
507
416
322
269
200
135
410
340
264
223
166
112
109
77
495
407
315
264
197
133
390
325
253
214
161
109
92
68
483
397
307
259
183
131
369
308
241
204
156
105
71
57
469
386
299
252
189
128
347
291
228
194
150
102
56
45
455
375
291
245
185
126
323
272
214
182
143
98
46
37
440
363
282
238
181
123
298
253
200
171
136
94
38
30
424
350
272
230
177
121
272
232
184
158
128
90
32
26
408
337
263
222
172
118
244
210
168
145
119
85
27
22
391
324
253
214
167
115
214
187
151
131
108
85
23
19
373
310
243
205
161
112
186
163
134
117
97
73
254
295
231
196
156
108
164
144
117
103
85
67
335
280
220
187
149
105
145
127
104
91
75
59
335
264
208
177
143
101
129
113
93
81
67
53
294
248
196
167
136
97
116
102
83
73
60
47
273
231
183
157
128
93
105
92
75
66
54
43
251
213
170
146
120
88
95
83
68
60
49
39
229
195
157
135
111
83
87
76
62
54
45
35
209
179
143
123
102
78
79
69
57
50
41
32
192
164
132
113
93
72
73
64
52
46
38
30
177
151
121
105
86
66
67
59
48
42
35
27
164
140
112
97
79
61
62
54
44
39
32
25
152
130
104
90
74
57
50
11
36
30
23
141
120
97
83
69
53
33
28
22
132
112
90
78
64
49
123
105
84
73
60
46
115
98
79
68
56
43
108
92
74
64
52
41
102
87
70
60
49
38
96
82
66
57
46
36
90
77
62
53
44
34
85
73
59
50
41
32
81
69
55
48
39
30
77
65
53
45
37
29
73
62
50
43
35
27
59
47
41
34
26
18.70
15.30
11.80
9.92
8.03
6.06
16.40
13.50
10.40
8.76
7.10
5.37
6.17
4.67
321
271
215
184
151
116
245
209
168
144
119
91.8
86.9
67.4
106
91.1
72.9
62.8
51.9
40
40.3
35.3
28.9
25.2
21
16.4
4.4
3.55
1.74
1.72
1.72
1.71
1.71
1.70
2.47
2.43
2.41
2.39
2.38
2.37
4.44
4.36
2.39
2.44
2.49
2.52
2.54
2.57
1.57
1.62
1.67
1.70
1.72
1.75
0.845
0.872
0.350
0.339
0.329
0.323
0.319
0.313
0.402
0.388
0.371
0.365
0.358
0.351
0.426
0.416
0.529
0.504
0.486
0.474
0.464
0.455
0.814
0.765
0.720
0.695
0.676
0.655
1.400
1.320
47.90
40.50
32.10
27.50
22.50
17.30
36.60
31.20
25.10
21.50
17.80
13.70
13.00
10.10
15.80
13.60
10.90
9.38
7.75
5.97
6.02
5.27
4.32
3.76
3.14
2.45
0.66
0.53
20
PROPERTIES
12
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
Nominal Outside
ERW
10 x 8
10 x 6
10 x 4
Wall Thickness
1/2
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
Weight per Foot
55.66
42.79
36.10
29.23
22.18
59.32
48.85
37.69
31.84
25.82
19.63
50.81
42.05
32.58
27.59
22.42
17.08
Design Wall Thickness
0.465
0.349
0.291
.233*
.174*
0.581
0.465
0.349
0.291
.233*
.174*
0.581
0.465
0.349
0.291
.233*
.174*
Effective length KL in feet
Fy = 50 ksi
459
354
298
232
154
492
405
312
263
205
138
420
348
296
228
177
118
451
348
292
229
152
479
395
304
256
201
136
402
334
259
219
172
115
446
344
289
227
151
472
389
300
253
198
134
391
325
252
214
169
113
440
340
286
225
150
463
382
295
248
196
133
378
315
244
207
165
110
434
335
282
223
149
454
374
289
244
193
131
364
303
236
200
160
108
428
331
278
220
147
444
366
283
239
190
129
348
291
227
193
156
105
421
326
274
217
146
433
358
277
233
186
127
331
277
217
184
150
102
414
320
270
214
144
421
348
270
228
182
125
312
263
206
176
144
99
407
315
265
211
143
409
339
262
222
178
122
293
247
195
166
136
95
399
309
260
208
141
396
328
255
215
174
120
272
231
182
156
129
91
391
303
255
205
139
382
317
246
209
170
117
250
213
170
146
120
87
382
296
250
201
137
368
306
238
202
164
114
226
195
156
135
111
82
373
289
244
197
135
353
294
229
194
158
111
202
176
142
123
102
76
364
282
238
193
133
338
282
220
187
152
108
176
155
127
111
92
70
354
275
232
189
131
322
269
210
179
146
104
153
135
111
98
82
63
345
268
226
184
128
305
256
200
170
139
101
134
119
98
86
72
56
334
260
220
179
126
288
242
190
162
132
97
119
105
87
76
64
50
324
252
213
173
123
270
228
179
153
125
93
106
94
77
68
57
44
313
244
206
168
120
251
213
168
144
118
88
95
84
69
61
51
40
302
235
199
162
117
231
197
157
135
110
84
86
76
63
55
46
36
290
227
192
157
114
211
181
145
125
102
78
78
69
57
50
42
32
278
218
185
151
110
192
165
133
115
94
73
71
63
52
45
38
30
266
209
177
145
107
176
151
121
105
86
67
65
57
47
41
35
28
253
199
169
138
103
162
139
111
96
79
61
60
53
43
38
32
25
241
189
161
132
99
149
128
103
89
73
57
55
49
40
35
30
23
227
179
153
125
95
138
118
95
82
68
52
37
32
27
21
214
169
144
119
90
128
110
88
76
63
49
34
30
25
20
200
159
136
112
85
119
102
82
71
58
45
24
18
186
148
127
105
80
111
95
76
66
54
42
174
138
119
98
75
103
89
71
62
51
39
163
130
111
92
70
97
83
67
58
48
37
153
122
104
86
66
91
78
63
54
45
35
144
114
98
81
62
86
73
59
51
42
32
135
108
92
76
58
81
69
56
48
39
31
128
102
87
72
55
76
65
52
45
37
29
121
96
82
68
52
72
62
50
43
35
27
114
91
78
64
49
68
58
47
40
33
26
108
86
74
61
47
64
55
44
38
32
24
103
82
70
58
44
61
53
42
36
30
23
98
78
67
55
42
40
35
29
22
PROPERTIES
13
Area, In²
15.30
11.80
9.92
8.03
6.06
16.40
13.50
10.40
8.76
7.10
5.37
14.00
11.60
8.97
7.59
6.17
4.67
Ix, In4
214
169
145
119
91.4
201
171
137
118
96.9
74.6
149
129
104
90.1
74.7
57.8
13.9
ly, In4
151
120
103
84.7
65.1
89.4
76.8
61.8
53.3
44.1
34.1
33.4
29.4
24.3
21.2
17.7
Ratio rx/ry
1.19
1.19
1.19
1.19
1.18
1.50
1.49
1.49
1.49
1.48
1.48
2.11
2.09
2.07
2.06
2.05
2.04
ry, ‘In.
3.14
3.19
3.22
3.25
3.28
2.34
2.39
2.44
2.47
2.52
2.52
1.54
1.59
1.64
1.67
1.70
1.72
Bx, Bending Factor
0.357
0.349
0.342
0.337
0.332
0.408
0.395
0.380
0.371
0.366
0.360
0.470
0.450
0.431
0.421
0.413
0.404
By, Bending Factor
0.405
0.393
0.385
0.379
0.372
0.550
0.527
0.505
0.493
0.483
0.472
0.838
0.789
0.738
0.716
0.697
0.672
ax, ÷ 106
32.00
25.20
21.70
17.80
13.60
30.00
25.50
20.50
17.60
14.50
11.10
22.30
19.30
15.50
13.50
11.20
8.63
ay, ÷106
22.50
17.90
15.40
12.60
9.72
13.40
11.50
9.23
7.96
6.59
5.09
4.99
4.39
3.63
3.17
2.64
2.08
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
ERW
10 x 2
9x7
9x5
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
27.48
23.34
19.02
14.53
59.32
48.85
37.69
31.84
25.82
19.63
50.81
42.05
32.58
27.59
22.42
17.08
0.349
0.291
.233*
.174*
0.581
0.465
0.349
0.291
0.233
.174*
0.581
0.465
0.349
0.291
0.233
.174*
Fy = 50 ksi
227
193
149
98
492
405
312
263
213
145
420
348
269
228
185
125
205
175
139
92
481
396
305
257
209
143
406
337
261
221
180
122
189
162
132
88
475
391
302
254
206
142
398
330
256
217
176
120
171
147
121
83
468
385
297
251
203
140
388
323
250
212
173
118
150
130
108
77
460
379
293
247
200
139
378
314
244
207
168
116
126
111
93
69
452
372
288
242
197
137
366
305
237
201
164
114
99
89
77
60
443
365
282
238
193
135
354
295
230
195
159
111
76
69
59
48
433
358
276
233
189
133
341
285
222
189
154
109
60
54
47
38
423
350
270
228
185
131
327
274
214
182
148
106
49
44
38
31
412
341
264
223
181
128
312
262
205
174
143
102
40
36
31
25
401
332
257
217
177
126
296
349
196
167
136
99
34
31
26
21
390
323
250
212
172
123
280
236
186
159
130
95
29
26
23
18
378
313
243
206
167
120
263
222
176
150
123
91
16
365
303
235
199
162
118
245
208
166
141
116
87
352
293
228
193
157
115
226
193
154
132
109
82
338
282
220
186
152
111
206
177
143
123
101
77
324
271
211
179
146
108
185
161
131
112
93
73
310
259
202
172
141
105
165
144
118
102
85
66
295
247
194
165
135
101
148
129
106
92
77
59
279
235
184
157
128
97
134
117
96
83
69
53
263
222
175
149
122
93
121
106
87
75
63
48
247
209
165
141
116
89
111
96
79
68
57
44
230
195
155
132
109
84
101
88
72
63
52
40
212
181
144
114
102
79
93
81
67
57
48
38
195
167
133
115
95
73
86
75
61
53
44
34
181
154
123
106
88
68
79
69
57
49
41
32
168
143
114
98
81
63
73
64
53
45
38
29
156
133
106
91
76
59
68
60
49
42
35
27
145
124
99
85
71
55
64
56
46
39
33
25
136
116
93
80
66
51
59
52
43
37
31
24
127
109
87
75
62
48
56
49
40
34
29
22
119
102
81
70
58
45
52
46
37
32
27
21
112
96
77
66
55
42
35
30
25
20
106
90
72
62
51
40
29
24
18
100
85
68
59
48
37
94
81
64
55
46
35
89
76
61
52
43
34
85
72
58
50
41
32
80
69
55
47
39
30
76
65
52
45
37
29
17
PROPERTIES
7.58
6.43
5.24
3.98
16.40
13.50
10.40
8.76
7.10
5.37
14.0
11.6
8.97
7.59
6.17
4.67
71.7
62.6
52.5
41
174
149
119
102
84.1
64.7
133
115
92.5
79.8
66.1
51.1
4.69
4.24
3.67
2.97
117
100
80.4
69.2
57.2
41.1
51.9
45.2
36.8
32.0
26.6
20.7
3.91
3.84
3.78
3.72
1.22
1.22
1.33
1.21
1.21
1.21
1.60
1.60
1.59
1.58
1.58
1.57
0.79
0.81
0.84
0.86
2.68
2.73
2.70
2.81
2.84
2.87
1.92
1.97
2.03
2.05
2.08
2.10
0.529
0.514
0.499
0.485
0.424
0.408
0.393
0.386
0.380
0.373
0.474
0.454
0.436
0.428
0.420
0.411
1.620
1.520
1.430
1.340
0.491
0.473
0.453
0.443
0.434
0.426
0.674
0.642
0.609
0.593
0.580
0.564
10.70
9.35
7.84
6.12
26.00
22.30
17.80
15.20
12.60
9.66
19.90
17.20
13.80
11.90
9.87
7.63
0.70
0.63
0.548
0.444
17.50
14.90
12.00
10.30
8.54
6.59
7.75
6.75
5.50
4.78
3.97
3.09
14
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
Nominal Outside
ERW
9x3
8x6
8x4
Wall Thickness
1/2
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
5/8
1/2
3/8
5/16
1/4
3/16
1/8
Weight per Foot
35.24
27.48
23.34
19.02
14.53
50.81
42.05
32.58
27.59
22.43
17.08
42.30
35.24
27.48
23.34
19.02
14.53
9.86
Design Wall Thickness 0.465
0.349
0.291
0.233
.174*
0.581
0.465
0.349
0.291
0.233
.174*
0.581
0.465
0.349
0.291
0.233
.174*
.116*
Effective length KL in feet
Fy = 50 ksi
292
227
193
157
105
420
348
269
228
185
132
351
292
227
193
157
111
64
275
215
182
149
101
409
339
262
222
181
139
336
280
218
185
151
108
62
263
206
175
143
98
402
334
258
219
178
128
326
272
213
181
147
106
61
250
196
167
137
95
394
327
254
215
175
126
315
264
206
175
143
104
60
235
185
158
130
91
386
321
249
211
171
124
303
254
199
169
138
101
59
218
173
148
122
87
377
313
243
206
168
122
289
243
191
162
133
98
57
200
160
137
113
83
367
306
237
201
164
120
274
231
182
155
127
95
56
180
145
126
104
77
357
297
231
196
160
117
259
219
173
147
121
91
54
158
130
113
94
72
346
289
225
191
155
115
242
205
163
139
114
87
52
135
113
99
84
65
335
279
218
185
151
112
224
191
152
130
107
83
50
112
95
85
72
56
322
270
211
179
146
109
205
176
141
121
100
77
47
94
80
71
61
48
310
259
203
172
141
106
184
160
129
111
92
71
45
80
68
61
52
41
296
249
195
166
136
102
163
143
117
101
84
65
42
69
59
52
45
35
283
238
187
159
130
99
141
125
104
90
76
59
39
60
51
46
39
31
268
226
178
152
124
95
123
109
91
79
67
52
36
53
45
40
34
27
253
214
169
144
119
91
108
96
80
69
58
46
32
47
40
35
30
24
238
202
160
137
112
86
96
85
71
61
52
41
28
42
36
32
27
21
221
189
150
129
106
81
85
76
63
55
46
36
25
38
32
28
24
19
204
175
141
120
99
76
77
68
56
49
41
33
23
29
26
22
17
187
161
130
112
92
71
69
61
51
44
37
29
20
20
16
170
147
119
103
85
66
63
56
46
40
34
27
19
155
134
109
94
78
61
57
51
42
37
31
24
17
141
122
100
86
71
55
52
46
39
33
28
22
15
130
112
91
79
66
51
48
43
35
31
26
20
14
120
104
84
73
60
47
44
39
33
28
24
19
13
111
96
78
67
56
43
36
30
26
22
17
12
103
89
72
62
52
40
24
21
16
11
95
83
67
58
48
37
15
10
89
77
63
54
45
35
83
72
59
50
42
33
78
67
55
47
39
30
73
63
51
44
37
29
69
59
48
42
35
27
65
56
46
39
33
25
61
53
43
37
31
24
58
50
41
35
29
23
55
47
38
33
28
21
45
36
31
26
20
35
30
25
19
28
24
18
PROPERTIES
15
Area, In²
9.74
7.58
6.43
5.24
3.98
14.00
11.60
8.97
7.59
6.17
4.67
11.70
9.74
7.58
6.43
5.24
3.98
2.70
Ix, In4
80.8
66.3
57.7
48.2
34.6
114.0
98.2
79.1
68.3
56.6
43.7
81.9
71.7
58.7
51.0
42.5
33.1
22.9
ly, In4
13.2
11.2
9.88
8.38
6.63
72.2
62.5
50.6
43.8
36.4
28.2
26.6
23.6
19.6
17.2
14.4
11.3
7.9
Ratio rx/ry
2.47
2.43
2.42
2.40
2.38
1.26
1.25
1.25
1.25
1.25
1.24
1.75
1.74
1.73
1.72
1.72
1.71
1.70
ry, ‘In.
1.16
1.21
1.24
1.27
1.29
2.27
2.32
2.38
2.40
2.43
2.46
1.51
1.56
1.61
1.63
1.66
1.69
1.71
Bx, Bending Factor
0.542
0.514
0.501
0.489
0.476
0.491
0.473
0.454
0.445
0.436
0.427
0.571
0.543
0.517
0.504
0.493
0.481
0.472
By, Bending Factor
1.110
1.020
0.976
0.938
0.900
0.582
0.557
0.532
0.520
0.509
0.497
0.880
0.825
0.773
0.748
0.728
0.704
0.684
ax, ÷ 106
12.10
9.90
8.62
7.20
5.61
17.00
14.70
11.80
10.20
8.45
6.53
12.20
10.70
8.77
7.62
6.35
4.94
3.42
ay, ÷106
1.98
1.67
1.48
1.25
0.99
10.80
9.33
7.56
6.54
5.44
4.21
3.97
3.52
2.93
2.57
2.15
1.69
1.18
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
ERW
8x3
8x2
7x5
1/2
3/8
5/16
1/4
3/16
1/8
3/8
5/16
1/4
3/16
1/8
5/8
1/2
3/8
5/16
1/4
3/16
1/8
31.84
24.93
21.21
17.32
13.25
9.01
22.37
19.08
15.62
11.97
8.16
42.30
35.24
27.48
23.34
19.02
14.53
9.86
0.465
0.349
0.291
0.233
.174*
.116*
0.349
0.291
0.233
.174*
.116*
0.581
0.465
0.349
0.291
0.233
.174*
.116*
Fy = 50 ksi
264
206
176
143
101
57
185
158
129
91
51
351
292
227
193
157
118
68
249
195
166
135
97
55
167
143
117
85
48
339
283
220
187
152
115
67
238
187
159
130
94
54
154
132
109
80
46
332
277
216
183
149
113
66
225
178
152
124
91
52
138
120
99
75
43
324
270
211
179
146
111
65
212
168
144
118
87
50
121
105
88
68
40
314
263
205
174
142
108
64
196
156
134
110
83
49
101
89
76
59
37
304
255
199
169
138
105
63
179
144
124
102
78
46
79
71
62
49
33
294
246
193
164
134
102
61
161
131
113
94
73
44
60
55
48
39
28
282
237
186
158
130
99
60
142
117
102
84
66
41
48
43
38
31
22
270
227
178
152
125
95
58
121
101
89
74
59
38
39
35
30
25
18
257
217
171
146
120
91
57
100
85
76
64
51
35
32
29
25
20
15
243
206
162
139
114
87
55
84
71
64
54
43
30
27
24
21
17
12
228
194
154
132
108
83
53
71
61
54
46
36
26
21
18
15
11
213
182
145
124
102
79
50
62
52
47
39
31
22
13
9
197
169
135
116
96
74
48
54
46
41
34
27
18
181
156
125
108
90
69
46
47
40
36
30
24
17
163
142
115
100
83
64
43
42
36
32
27
21
15
145
128
104
91
76
59
40
37
32
28
24
19
14
130
114
93
82
68
53
37
33
28
25
21
17
12
116
102
84
73
61
48
33
26
23
19
15
11
105
92
75
66
55
43
30
14
10
95
84
68
60
50
39
27
87
76
62
55
46
36
25
79
70
57
50
42
33
23
73
64
52
46
39
30
21
67
59
48
42
35
28
19
62
55
45
39
33
26
18
58
51
41
36
30
24
16
54
47
39
34
28
22
15
50
44
36
31
26
21
14
47
41
34
29
25
19
13
44
38
31
27
23
18
12
29
26
22
17
12
24
20
16
11
15
10
2.70
PROPERTIES
8.81
6.88
5.85
4.77
3.63
2.46
6.18
5.26
4.30
3.28
2.23
11.70
9.74
7.58
6.43
5.24
3.98
58.5
48.5
42.4
35.5
27.8
19.3
38.2
33.7
28.5
22.4
15.7
69.3
60.6
49.5
43.0
35.8
27.9
19.3
11.7
9.9
8.81
7.49
5.94
4.2
3.73
3.38
2.94
2.39
1.72
40.5
35.6
29.2
25.5
21.3
16.6
11.6
2.24
2.21
2.19
2.18
2.16
2.14
3.20
3.16
3.11
3.06
3.02
1.31
1.30
1.30
1.30
1.30
1.30
1.29
1.15
1.20
1.23
1.25
1.28
1.31
0.78
0.80
0.83
0.85
0.88
1.86
1.91
1.96
1.99
2.02
2.05
2.07
.602
0.567
0.552
0.537
0.522
0.510
0.647
0.624
0.604
0.586
0.568
0.591
0.563
0.536
0.523
0.512
0.499
0.490
1.130
1.040
0.996
0.955
0.917
0.879
1.66
1.56
1.46
1.37
1.30
0.722
0.684
0.649
0.630
0.615
0.599
0.582
8.74
7.24
6.33
5.30
4.15
2.88
5.70
5.03
4.26
3.35
2.34
10.30
9.05
7.39
6.42
5.35
4.17
2.88
1.75
1.48
1.32
1.12
0.887
0.627
0.556
0.505
0.439
0.357
0.257
6.05
5.32
4.36
3.81
3.18
2.48
1.73
16
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
Nominal Outside
ERW
7x4
7x3
6x5
Wall Thickness
1/2
3/8
5/16
1/4
3/16
1/8
1/2
3/8
5/16
1/4
3/16
1/8
3/8
5/16
1/4
3/16
Weight per Foot
31.84
24.93
21.21
17.32
13.25
9.01
28.43
22.37
19.06
15.62
11.97
8.16
24.93
21.21
17.32
13.25
Design Wall Thickness
0.465
0.349
0.291
0.233
.174*
.116*
0.465
0.349
0.291
0.233
.174*
.116*
0.349
0.291
0.233
0.174
Effective length KL in feet
Fy = 50 ksi
264
206
176
143
107
62
236
185
158
129
97
55
206
176
143
109
253
198
169
138
104
60
222
175
149
122
93
53
200
170
139
106
246
193
164
134
102
59
212
168
143
117
90
52
196
166
136
104
238
186
159
130
99
58
201
159
136
112
86
50
191
163
133
101
229
180
153
125
96
56
189
150
128
106
81
48
186
158
129
99
219
172
147
121
92
55
175
140
120
99
76
46
180
154
126
96
208
164
140
115
88
53
160
129
111
92
71
44
174
149
122
93
196
155
133
110
84
51
143
117
101
84
65
41
168
143
117
90
183
146
126
103
79
49
125
104
90
75
59
39
161
137
113
86
170
136
117
97
74
47
106
90
78
66
52
35
153
131
108
83
156
126
109
90
69
45
88
75
66
57
45
31
146
125
103
79
141
115
100
73
64
42
74
63
55
48
38
27
138
118
97
75
126
103
90
75
58
39
63
54
47
41
32
23
129
111
92
71
109
91
80
67
52
36
54
46
41
35
28
20
120
104
86
66
95
79
70
59
46
32
47
40
35
30
24
17
111
96
80
62
84
70
61
52
41
28
41
35
31
27
21
15
101
88
73
57
74
62
54
46
36
25
37
31
28
24
19
13
91
80
67
52
66
55
49
41
32
22
33
28
25
21
17
12
81
71
60
47
59
49
44
37
29
20
29
25
22
19
15
11
73
64
54
42
53
45
39
33
26
18
20
17
14
10
66
58
48
38
48
40
36
30
24
17
12
9
60
52
44
34
44
37
32
27
21
15
54
48
40
31
40
34
30
25
20
14
50
44
37
29
37
31
27
23
18
13
46
40
34
26
34
28
25
21
17
12
42
37
31
24
26
23
20
15
11
39
34
29
22
18
14
10
36
32
27
21
9
34
29
25
19
31
27
23
18
29
26
22
17
27
24
20
16
26
23
19
15
18
14
PROPERTIES
17
Area, In²
8.81
6.88
5.85
4.77
3.63
2.46
7.88
6.18
5.26
4.30
3.28
2.23
6.88
5.85
4.77
3.63
Ix, In4
50.6
41.8
36.4
30.5
23.8
16.6
40.7
34.0
29.9
25.2
19.8
13.8
33.9
29.6
24.7
19.3
ly, In4
20.7
17.3
15.2
12.8
10
7.03
10.2
8.70
7.74
6.59
5.24
3.71
25.5
22.3
18.7
14.6
Ratio rx/ry
1.56
1.55
1.55
1.54
1.54
1.54
2.00
1.98
1.97
1.96
1.94
1.93
1.15
1.15
1.15
1.15
ry, ‘In.
1.53
1.58
1.61
1.64
1.66
1.69
1.14
1.19
1.21
1.24
1.26
1.29
1.92
1.95
1.98
2.01
Bx, Bending Factor
0.609
0.576
0.563
0.547
0.534
0.519
0.678
0.636
0.616
0.597
0.580
0.566
0.609
0.593
0.579
0.564
By, Bending Factor
0.851
0.795
0.770
0.745
0.726
0.700
1.160
1.070
1.020
0.979
0.939
0.902
0.675
0.656
0.638
0.622
ax, ÷ 106
7.56
6.20
5.44
4.55
3.55
2.48
6.08
5.08
4.47
3.76
2.96
2.06
5.06
4.40
3.69
2.88
ay, ÷106
3.09
2.58
2.27
1.91
1.49
1.05
1.52
1.30
1.16
0.984
0.782
0.554
3.81
3.33
2.79
2.18
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
ERW
6x4
6x3
6x2
5x4
1/2
3/8
5/16
1/4
3/16
1/8
3/8
5/16
1/4
3/16
1/8
3/8
5/16
1/4
3/16
1/8
3/8
5/16
1/4
3/16
28.43
22.37
19.08
15.62
11.97
8.16
19.82
16.96
13.91
10.70
7.31
17.27
14.83
12.21
9.42
6.46
19.82
16.96
13.91
10.70
0.465
0.349
0.291
0.233
0.174
.116*
0.349
0.291
0.233
0.174
.116*
0.349
0.291
0.233
0.174
.116*
0.349
0.291
0.233
0.174
Fy = 50 ksi
236
185
158
129
98
60
164
140
115
88
53
143
123
101
77
47
164
140
115
88
226
178
151
124
95
58
155
132
109
83
51
129
111
92
70
44
157
135
110
84
220
173
147
121
92
57
148
127
104
80
50
118
102
85
65
41
153
131
107
82
212
167
143
117
89
56
141
121
100
76
48
106
92
77
60
39
148
126
104
80
204
161
137
113
86
54
132
114
94
72
46
92
81
68
53
36
142
122
100
77
194
154
132
108
83
53
123
106
88
68
44
76
68
58
46
32
136
116
96
74
184
146
125
103
79
51
113
97
81
63
41
58
53
47
38
24
129
111
91
70
174
138
119
98
75
49
102
88
74
58
39
45
41
36
29
21
121
104
86
67
162
130
112
92
71
47
90
79
66
52
36
35
32
28
23
17
114
98
81
63
150
121
104
86
66
44
77
68
58
46
32
29
26
23
19
14
105
91
76
59
137
111
96
80
62
42
64
57
49
39
28
24
22
19
15
11
97
84
70
54
123
101
88
73
57
39
54
48
41
33
23
20
18
16
13
9
87
76
64
50
108
90
79
66
51
36
46
41
35
28
20
15
14
11
8
77
67
57
45
94
79
69
59
46
32
40
35
30
24
17
7
67
59
50
40
82
68
61
51
40
28
35
31
26
21
15
58
51
44
35
72
60
53
45
35
25
30
27
23
19
13
51
45
38
30
64
53
47
40
31
22
28
24
21
16
12
45
40
34
27
57
48
42
36
28
20
24
21
18
15
10
41
36
30
24
51
43
38
32
25
18
22
19
16
13
9
36
32
27
22
46
38
34
29
23
16
15
12
8
33
29
25
19
42
35
31
26
20
14
8
30
26
22
18
38
32
28
24
19
13
27
24
20
16
35
29
26
22
17
12
25
22
19
15
32
27
24
20
16
11
23
20
17
14
29
25
22
18
14
10
21
18
16
12
20
17
13
9
15
12
12
9
PROPERTIES
7.88
6.18
5.26
4.30
3.28
2.23
5.48
4.68
3.84
2.93
2.00
4.78
4.10
3.37
2.58
1.77
5.48
4.68
3.84
2.93
33.9
28.3
24.8
20.9
16.4
11.4
22.7
20.1
17
13.4
9.43
17.1
15.3
13.1
10.5
7.42
17.9
15.8
13.4
10.6
17.7
14.9
13.1
11.1
8.76
6.15
7.47
6.66
5.7
4.55
3.23
2.75
2.52
2.21
1.8
1.31
12.6
11.1
9.46
7.48
1.38
1.38
1.38
1.37
1.37
1.36
1.74
1.74
1.73
1.72
1.71
2.49
2.46
2.43
2.42
2.38
1.19
1.19
1.19
1.19
1.50
1.55
1.58
1.61
1.63
1.66
1.17
1.19
1.22
1.25
1.27
0.759
0.784
0.809
0.835
0.86
1.52
1.54
1.57
1.60
0.697
0.655
0.636
0.617
0.600
0.587
0.724
0.699
0.678
0.656
0.636
0.839
0.804
0.772
0.737
0.716
0.765
0.741
0.716
0.691
0.890
0.830
0.803
0.775
0.749
0.725
1.10
1.05
1.01
0.966
0.929
1.740
1.630
1.520
1.430
1.350
0.870
0.843
0.812
0.783
5.06
4.23
3.70
3.12
2.45
1.70
3.39
3.00
2.54
2.00
1.41
2.55
2.28
1.96
1.57
1.11
2.67
2.36
2.00
1.58
2.64
2.23
1.96
1.66
1.31
0.92
1.12
0.995
0.851
0.679
0.482
0.411
0.376
0.330
0.269
0.196
1.88
1.66
1.41
1.12
18
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
Nominal Outside
ERW
5x3
5x2
4x3
Wall Thickness
3/8
5/16
1/4
3/16
1/8
3/8
5/16
1/4
3/16
1/8
3/8
5/16
1/4
3/16
1/8
Weight per Foot
17.27
14.83
12.21
9.42
6.46
14.72
12.70
10.51
8.15
5.61
14.72
12.70
10.51
8.15
5.61
Design Wall Thickness
0.349
0.291
0.233
0.174
.116*
0.349
0.291
0.233
0.174
.116*
0.349
0.291
0.233
0.174
0.116
Effective length KL in feet
Fy = 50 ksi
143
123
101
77
51
123
106
87
67
44
123
106
87
67
46
135
116
95
73
49
110
95
79
61
41
115
99
82
63
44
129
111
91
70
47
101
87
73
57
39
110
95
79
61
42
122
105
87
67
45
90
79
66
51
36
104
90
75
58
40
114
99
82
63
43
77
68
58
46
32
97
84
70
54
38
106
92
76
59
41
63
57
49
39
28
89
78
65
51
35
97
84
70
55
38
48
44
38
32
23
81
71
60
47
32
87
76
64
50
35
37
34
30
25
18
72
63
54
42
29
76
67
57
45
31
29
27
24
19
14
63
55
47
38
26
64
58
49
39
28
24
22
19
16
11
52
47
40
33
23
53
48
41
33
24
20
18
16
13
9
43
39
34
27
19
45
40
34
28
20
16
15
13
11
8
36
32
28
23
16
38
34
29
24
17
11
9
7
31
28
24
19
14
33
30
25
20
15
6
27
24
21
17
12
29
26
22
18
13
23
21
18
15
10
25
23
19
16
11
20
18
16
13
9
22
20
17
14
10
18
16
14
11
8
16
14
13
10
7
11
9
6
20
18
15
12
9
18
16
14
11
8
10
7
6
PROPERTIES
19
Area, In²
4.78
4.10
3.37
2.58
1.77
4.09
3.52
2.91
2.24
1.54
4.09
3.52
2.91
2.24
1.54
Ix, In4
14.1
12.6
10.7
8.53
6.03
10.3
9.34
8.08
6.5
4.65
7.92
7.13
6.15
4.93
3.52
ly, In4
6.23
5.59
4.81
3.85
2.75
2.27
2.09
1.84
1.51
1.1
5
4.52
3.91
3.16
2.27
Ratio rx/ry
1.50
1.50
1.49
1.49
1.48
2.13
2.11
2.10
2.07
2.06
1.26
1.26
1.25
1.25
1.25
ry, ‘In.
1.14
1.17
1.19
1.22
1.25
0.746
0.771
0.796
0.822
0.848
1.11
1.13
1.16
1.19
1.21
Bx, Bending Factor
0.848
0.813
0.787
0.756
0.734
0.993
0.920
0.900
0.862
0.828
1.030
0.987
0.940
0.909
0.875
By, Bending Factor
1.15
1.10
1.05
1.01
0.965
1.80
1.68
1.58
1.48
1.40
1.23
1.17
1.12
1.06
1.02
ax, ÷ 106
2.11
1.88
1.60
1.27
0.90
1.54
1.39
1.21
0.97
0.69
1.18
1.06
0.92
0.74
0.53
ay, ÷106
0.93
0.835
0.718
0.575
0.411
0.339
0.312
0.275
0.225
0.164
0.747
0.675
0.584
0.472
0.339
HSS/Rectangular Structural Steel Tubing
Fy=50
Allowable Concentric Loads in Kips
ERW
4x2
3x2
3 x 1½
2½ x 1½
3/8
5/16
1/4
3/16
1/8
5/16
1/4
3/16
1/8
1/4
3/16
1/8
1/4
3/16
1/8
12.17
10.58
8.81
6.87
4.75
8.45
7.11
5.59
3.90
6.26
4.96
3.48
5.41
4.32
3.05
0.349
0.291
0.233
0.174
0.116
0.291
0.233
0.174
0.116
0.233
0.174
0.116
0.233
0.174
0.116
Fy = 50 ksi
102
88
73
57
39
71
59
46
32
52
41
29
45
36
25
91
79
66
51
35
63
53
42
29
44
35
25
38
30
22
83
73
61
48
33
57
49
38
27
38
31
22
33
26
19
73
65
55
43
30
51
43
35
24
31
25
19
26
22
16
63
56
48
38
27
43
37
30
21
22
19
14
19
16
12
51
46
40
32
23
35
31
25
18
6
13
10
13
11
9
38
35
31
26
19
26
23
20
15
11
10
8
9
8
6
29
27
24
20
15
20
18
15
11
9
8
6
7
6
5
23
21
19
16
11
16
14
12
9
7
6
5
6
5
4
19
17
15
13
9
13
11
10
7
15
14
13
10
8
11
9
8
6
13
12
11
9
6
9
8
7
5
7
5
4
4
PROPERTIES
3.39
2.94
2.44
1.89
1.30
2.35
1.97
1.54
1.07
1.74
1.37
0.96
1.51
1.19
0.84
5.59
5.12
4.49
3.66
2.65
2.38
2.12
1.76
1.3
1.68
1.42
1.06
1.03
0.881
0.668
1.79
1.66
1.48
1.22
0.898
1.23
1.11
0.931
0.692
0.541
0.466
0.355
0.447
0.389
0.299
1.77
1.76
1.74
1.73
1.72
1.39
1.38
1.37
1.37
1.76
1.75
1.73
1.52
1.50
1.49
0.727
0.752
0.778
0.804
0.830
0.724
0.750
0.777
0.804
0.558
0.584
0.620
0.544
0.571
0.597
1.21
1.15
1.09
1.03
0.98
1.48
1.39
1.31
1.23
1.55
1.45
1.36
1.83
1.69
1.57
1.89
1.77
1.65
1.55
1.45
1.91
1.77
1.65
1.55
2.41
2.20
2.03
2.53
2.29
2.11
0.835
0.765
0.670
0.547
0.396
0.355
0.317
0.263
0.194
0.251
0.212
0.158
0.15
0.13
0.10
0.267
0.248
0.221
0.182
0.134
0.184
0.166
0.139
0.103
0.081
0.070
0.053
0.067
0.058
0.045
20
HSS Rectangular Dimension and Section Properties
X-X AXIS
OD1
OD2
2.50
1.50
1.50
3.00
2.00
2.00
4.00
3.00
2.00
5.00
3.00
4.00
2.00
3.00
6.00
4.00
5.00
21
Y-Y AXIS
Wall
Wt per ft
Moment of
Inertia In4
Section
Modulus In³
Radius of
Gyration In³
Moment of
Inertia In4
Section
Modulus In³
Radius of
Gyration In³
0.125
0.180
0.250
0.125
0.188
0.250
0.125
0.188
0.250
0.313
0.125
0.188
0.250
0.313
0.375
0.125
0.188
0.250
0.313
0.375
0.125
0.188
0.250
0.313
0.375
0.125
0.188
0.250
0.313
0.375
0.500
0.125
0.188
0.250
0.313
0.375
0.500
0.125
0.188
0.250
0.313
0.375
0.125
0.188
0.250
0.375
0.500
0.125
0.188
0.250
0.313
0.375
0.500
0.125
0.188
0.250
0.313
0.375
3.05
4.32
5.41
3.48
4.96
6.26
3.90
5.59
7.11
8.45
4.75
6.87
8.81
10.58
12.17
5.61
8.15
10.51
12.70
14.72
5.61
8.15
10.51
12.70
14.72
6.46
9.42
12.21
14.83
17.27
21.63
7.31
10.70
13.91
16.96
19.82
25.03
6.46
9.42
12.21
14.83
17.27
7.31
10.70
13.91
19.82
25.03
8.16
11.97
15.62
19.08
22.37
28.43
9.01
13.25
17.32
21.21
24.93
0.668
0.882
1.03
1.06
1.42
1.68
1.30
1.77
2.13
2.38
2.65
3.66
4.49
5.13
5.60
3.52
4.93
6.15
7.14
7.93
4.65
6.50
8.08
9.35
10.4
6.03
8.53
10.7
12.6
14.1
16.4
7.42
10.6
13.4
15.8
17.9
21.2
7.42
10.5
13.1
15.3
17.1
9.43
13.4
17.0
22.7
26.8
11.4
16.4
20.9
24.8
28.3
34.0
13.4
19.3
24.7
29.6
33.9
0.535
0.705
0.822
0.706
0.945
1.12
0.867
1.18
1.42
1.59
1.32
1.83
2.25
2.56
2.80
1.76
2.47
3.07
3.57
3.97
1.86
2.60
3.23
3.74
4.14
2.41
3.41
4.29
5.03
5.65
6.57
2.97
4.22
5.35
6.32
7.17
8.49
2.47
3.49
4.37
5.11
5.71
3.14
4.47
5.66
7.57
8.95
3.81
5.46
6.96
8.27
9.43
11.3
4.48
6.44
8.25
9.85
11.3
0.892
0.860
0.826
1.05
1.02
0.982
1.10
1.07
1.04
1.01
1.43
1.39
1.36
1.32
1.29
1.52
1.49
1.45
1.42
1.39
1.74
1.70
1.67
1.63
1.59
1.85
1.82
1.78
1.75
1.72
1.65
1.93
1.90
1.87
1.84
1.81
1.75
2.05
2.01
1.97
1.93
1.89
2.17
2.14
2.10
2.04
1.97
2.26
2.23
2.20
2.17
2.14
2.08
2.34
2.31
2.28
2.25
2.22
0.300
0.390
0.449
0.355
0.467
0.543
0.692
0.932
1.11
1.24
0.898
1.22
1.48
1.67
1.80
2.27
3.16
3.91
4.52
5.01
1.10
1.51
1.84
2.10
2.28
2.75
3.85
4.81
5.60
6.25
7.18
5.27
7.48
9.46
11.1
12.6
14.9
1.31
1.80
2.21
2.52
2.77
3.23
4.55
5.70
7.48
8.69
6.15
8.76
11.1
13.2
14.9
17.8
10.2
14.6
18.7
22.3
25.5
0.399
0.520
0.599
0.474
0.622
0.725
0.692
0.932
1.11
1.24
0.898
1.22
1.48
1.67
1.80
1.51
2.10
2.61
3.02
3.34
1.10
1.51
1.84
2.10
2.28
1.83
2.57
3.21
3.73
4.16
4.78
2.64
3.74
4.73
5.57
6.30
7.43
1.31
1.80
2.21
2.52
2.77
2.15
3.03
3.80
4.99
5.79
3.08
4.38
5.56
6.58
7.47
8.89
4.07
5.84
7.47
8.91
10.2
0.597
0.572
0.546
0.610
0.584
0.559
0.804
0.778
0.751
0.725
0.830
0.804
0.779
0.754
0.729
1.21
1.19
1.16
1.13
1.11
0.848
0.823
0.797
0.772
0.748
1.25
1.22
1.19
1.17
1.14
1.09
1.62
1.60
1.57
1.54
1.52
1.46
0.861
0.836
0.810
0.785
0.760
1.27
1.25
1.22
1.17
1.12
1.66
1.63
1.61
1.58
1.55
1.50
2.03
2.01
1.98
1.95
1.92
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HSS Rectangular Dimension and Section Properties
X-X AXIS
OD1
OD2
3.00
7.00
4.00
5.00
2.00
3.00
8.00
4.00
6.00
Y-Y AXIS
Wt per ft
Moment of
Inertia In4
Section
Modulus In³
Radius of
Gyration In³
Moment of
Inertia In4
Section
Modulus In³
Radius of
Gyration In³
0.125
8.16
13.8
3.95
2.49
3.71
2.48
1.29
0.188
11.97
19.8
5.65
2.45
5.24
3.50
1.26
0.250
15.62
25.2
7.19
2.42
6.60
4.40
1.24
0.313
19.08
29.9
8.54
2.38
7.74
5.16
1.21
0.375
22.37
34.1
9.73
2.35
8.71
5.81
1.19
0.500
28.43
40.7
11.6
2.27
10.2
6.80
1.14
0.125
9.01
16.6
4.73
2.59
7.03
3.51
1.69
0.188
13.25
23.8
6.81
2.56
10.0
5.02
1.66
0.250
17.32
30.5
8.72
2.53
12.8
6.38
1.64
0.313
21.21
36.5
10.4
2.50
15.2
7.58
1.61
0.375
24.93
41.8
11.9
2.46
17.3
8.63
1.58
0.500
31.84
50.7
14.5
2.40
20.7
10.4
1.53
0.125
9.86
19.3
5.52
2.68
11.6
4.63
2.07
0.188
14.53
27.9
7.96
2.65
16.6
6.65
2.05
0.250
19.02
35.9
10.2
2.62
21.3
8.53
2.02
0.313
23.34
43.0
12.3
2.59
25.5
10.2
1.99
0.375
27.48
49.5
14.1
2.56
29.3
11.7
1.97
0.500
35.24
60.6
17.3
2.50
35.6
14.2
1.91
0.125
8.16
15.7
3.93
2.65
1.72
1.72
0.879
0.188
11.97
22.4
5.61
2.61
2.39
2.39
0.853
0.250
15.62
28.5
7.12
2.57
2.94
2.94
0.827
0.313
19.08
33.7
8.43
2.53
3.38
3.38
0.802
0.375
22.37
38.2
9.56
2.49
3.73
3.73
0.777
0.125
9.01
19.3
4.83
2.80
4.20
2.80
1.31
0.188
13.25
27.8
6.94
2.77
5.94
3.96
1.28
0.250
17.32
35.5
8.88
2.73
7.49
4.99
1.25
0.313
21.21
42.4
10.6
2.69
8.81
5.87
1.23
0.375
24.93
48.5
12.1
2.65
10.0
6.63
1.20
0.500
31.84
58.6
14.6
2.58
11.7
7.81
1.15
0.125
9.86
22.9
5.73
2.92
7.90
3.95
1.71
0.188
14.53
33.1
8.27
2.88
11.3
5.65
1.69
0.250
19.02
42.5
10.6
2.85
14.4
7.21
1.66
0.313
23.34
51.0
12.8
2.82
17.2
8.58
1.63
0.375
27.48
58.7
14.7
2.78
19.6
9.80
1.61
0.500
35.24
71.8
17.9
2.71
23.6
11.8
1.56
0.625
42.30
82.0
20.5
2.64
26.6
13.3
1.51
0.188
17.08
43.7
10.9
3.06
28.2
9.39
2.46
0.250
22.42
56.6
14.2
3.03
36.4
12.1
2.43
0.313
27.59
68.3
17.1
3.00
43.8
14.6
2.40
0.375
32.58
79.1
19.8
2.97
50.6
16.9
2.38
0.500
42.05
98.2
24.6
2.91
62.5
20.8
2.32
0.625
50.81
114
28.5
2.85
72.3
24.1
2.27
Wall
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22
HSS Rectangular Dimension and Section Properties
X-X AXIS
OD1
OD2
3.00
9.00
5.00
7.00
2.00
4.00
10.00
6.00
8.00
Y-Y AXIS
Wall
Wt per ft
Moment of
Inertia In4
Section
Modulus In³
Radius of
Gyration In³
Moment of
Inertia In4
Section
Modulus In³
Radius of
Gyration In³
0.188
14.53
37.6
8.35
3.07
6.64
4.42
1.29
0.250
19.02
48.2
10.7
3.04
8.38
5.59
1.27
0.313
23.34
57.7
12.8
3.00
9.88
6.59
1.24
0.375
27.48
66.3
14.7
2.96
11.2
7.45
1.21
0.500
35.24
80.8
18.0
2.88
13.2
8.81
1.17
0.188
17.08
51.1
11.4
3.31
20.7
8.28
2.10
0.250
22.42
66.1
14.7
3.27
26.6
10.6
2.08
0.313
27.59
79.8
17.7
3.24
32.0
12.8
2.05
0.375
32.58
92.5
20.5
3.21
36.8
14.7
2.03
0.500
42.05
115
25.5
3.14
45.2
18.1
1.97
0.625
50.81
133
29.6
3.08
52.0
20.8
1.92
0.188
19.63
64.7
14.4
3.47
44.1
12.6
2.87
0.250
25.82
84.1
18.7
3.44
57.2
16.3
2.84
0.313
31.84
102
22.6
3.41
69.2
19.8
2.81
0.375
37.69
119
26.4
3.38
80.4
23.0
2.78
0.500
48.85
149
33.0
3.32
100
28.7
2.73
0.625
59.32
174
38.7
3.26
117
33.5
2.68
0.125
9.86
28.5
5.70
3.25
2.14
2.14
0.890
0.188
14.53
41.0
8.19
3.21
2.97
2.97
0.864
0.250
19.02
52.5
10.5
3.17
3.67
3.67
0.838
0.313
23.34
62.6
12.5
3.12
4.24
4.24
0.812
0.375
27.48
71.7
14.3
3.08
4.70
4.70
0.787
0.125
11.56
39.8
7.97
3.55
9.65
4.83
1.75
0.188
17.08
57.8
11.6
3.52
13.9
6.93
1.72
0.250
22.42
74.7
14.9
3.48
17.7
8.87
1.70
0.313
27.59
90.1
18.0
3.44
21.2
10.6
1.67
0.375
32.58
104
20.8
3.41
24.3
12.1
1.64
0.500
42.05
129
25.8
3.34
29.5
14.7
1.59
0.625
50.81
149
29.9
3.26
33.5
16.8
1.54
0.188
19.63
74.6
14.9
3.73
34.1
11.4
2.52
0.250
25.82
96.9
19.4
3.69
44.1
14.7
2.49
0.313
31.84
118
23.5
3.66
53.3
17.8
2.47
0.375
37.69
137
27.4
3.63
61.8
20.6
2.44
0.500
48.85
171
34.3
3.57
76.8
25.6
2.39
0.625
59.32
201
40.2
3.50
89.4
29.8
2.34
0.188
22.18
91.4
18.3
3.88
65.1
16.3
3.28
0.250
29.23
119
23.8
3.85
84.7
21.2
3.25
0.313
36.10
145
29.0
3.82
103
25.7
3.22
0.375
42.79
169
33.9
3.79
120
30.0
3.19
0.500
55.66
214
42.7
3.73
151
37.8
3.14
0.625
67.82
253
50.5
3.68
178
44.5
3.09
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23
HSS Rectangular Dimension and Section Properties
X-X AXIS
OD1
OD2
2.00
4.00
12.00
6.00
8.00
4.00
14.00
6.00
10.00
4.00
16.00
8.00
Y-Y AXIS
Wall
Wt per ft
Moment of
Inertia In4
Section
Modulus In³
Radius of
Gyration In³
Moment of
Inertia In4
Section
Modulus In³
Radius of
Gyration In³
0.188
17.08
67.4
11.2
3.80
3.55
3.55
0.872
0.250
22.42
86.9
14.5
3.75
4.41
4.41
0.845
0.313
27.59
104
17.4
3.71
5.10
5.10
0.820
0.188
19.63
91.8
15.3
4.13
16.4
8.20
1.75
0.250
25.82
119
19.9
4.10
21.0
10.5
1.72
0.313
31.84
144
24.1
4.06
25.2
12.6
1.70
0.375
37.69
168
28.0
4.02
28.9
14.5
1.67
0.500
48.85
210
34.9
3.95
35.3
17.7
1.62
0.625
59.32
245
40.8
3.87
40.4
20.2
1.57
0.188
22.18
116
19.4
4.38
40.0
13.3
2.57
0.250
29.23
151
25.2
4.34
51.9
17.3
2.54
0.313
36.10
184
30.7
4.31
62.8
20.9
2.52
0.375
42.79
215
35.9
4.28
72.9
24.3
2.49
0.500
55.66
271
45.2
4.21
91.1
30.4
2.44
0.625
67.82
321
53.4
4.14
107
35.5
2.39
0.188
24.73
140
23.4
4.56
75.7
18.9
3.35
0.250
32.63
184
30.6
4.53
98.8
24.7
3.32
0.313
40.35
224
37.4
4.50
120
30.1
3.29
0.375
47.90
262
43.7
4.47
140
35.1
3.27
0.500
62.46
333
55.6
4.41
178
44.4
3.21
0.625
76.33
397
66.1
4.34
210
52.5
3.16
0.188
22.18
137
19.5
4.74
19.0
9.48
1.77
0.250
29.23
178
25.4
4.71
24.4
12.2
1.74
0.313
36.10
216
30.9
4.67
29.2
14.6
1.72
0.375
42.79
252
36.0
4.63
33.6
16.8
1.69
0.500
55.66
317
45.3
4.55
41.2
20.6
1.64
0.625
67.82
373
53.3
4.47
47.2
23.6
1.59
0.188
24.73
170
24.3
5.01
45.9
15.3
2.61
0.250
32.63
222
31.7
4.98
59.6
19.9
2.58
0.313
40.35
271
38.7
4.94
72.3
24.1
2.55
0.370
47.90
317
45.3
4.91
84.1
28.0
2.53
0.500
62.46
402
57.4
4.84
105
35.1
2.48
0.625
76.33
478
68.3
4.77
124
41.2
2.43
0.250
39.43
310
44.3
5.35
186
37.2
4.14
0.313
48.86
380
54.3
5.32
227
45.5
4.12
0.375
58.10
447
63.9
5.29
267
53.4
4.09
0.500
76.07
573
81.8
5.23
341
68.1
4.04
0.625
93.34
687
98.2
5.17
407
81.5
3.98
0.188
24.73
193
24.2
5.35
21.5
10.8
1.78
0.250
32.63
253
31.6
5.31
27.7
13.8
1.76
0.313
40.35
308
38.5
5.27
33.2
16.6
1.73
0.375
47.90
360
45.0
5.23
38.3
19.1
1.71
0.500
62.46
455
56.9
5.15
47.0
23.5
1.65
0.625
76.33
539
67.3
5.06
54.1
27.0
1.60
0.250
39.43
368
46.1
5.83
127
31.7
3.42
0.313
48.86
451
56.4
5.80
155
38.7
3.40
0.375
58.10
531
66.3
5.77
181
45.3
3.37
0.500
76.07
679
84.9
5.70
230
57.6
3.32
0.625
93.34
815
102
5.64
274
68.6
3.27
Call your Independence Tube Account Representative for floor stock availability or go on-line at www.independencetube.com.
24
HSS Rounds
INDEPENDENCE TUBE produces round tubing
from 1.66" OD x .109" wall through 16" OD x .625" wall
to ASTM A500, ASTM A252 and ASTM A513.
CHICAGO:
4.00" OD
5.00" OD
5.50" OD
5.563" OD
6.00" OD
6.625" OD
Walls from .125" to .375"
MARSEILLES:
1.66" OD
5.00" OD
1.75" OD
6.625" OD
1.90" OD
7.00" OD
2.375" OD
8.625" OD
2.875" OD
9.625" OD
3.00" OD
10.75" OD
4.00" OD
12.00" OD
4.50" OD
12.75" OD
Walls from .109" to .625"
DECATUR:
6.625" OD
8.625" OD
10.75" OD
12.75" OD
14.00" OD
16.00" OD
Walls from .188" to .625"
In-house band saw cutting available.
Flash removal available on some sizes – contact your
Independence Tube Sales Representative for details.
The information presented in this publication has been prepared in accordance with recognized engineering principles and is for general information only.
While it is believed to be accurate, this information should not be used or relied upon for any specific application without competent professional examination and verification of its accuracy, suitability and applicability by a licensed professional engineer, designer or architect. The publication of the material
contained herein is not intended as a representation or warranty on the part of “Independence Tube Corporation” or of any other person named herein, that
this information is suitable use of this information assumes all liability arising from such use. Caution must be exercised when relying upon specifications
and codes developed by other bodies and incorporated by reference herein since such material may be modified or amended from time to time subsequent
to the printing of this publication. Independence Tube Corporation bears no responsibility for such material other than to refer to it and incorporate it by
reference at the time of the initial publication of this edition. To the best of our knowledge, all information contained herein is correct at the time of publication. Independence Tube Corporation does not assume responsibility for errors or oversights resulting from the use of the information contained herein.
25
Fy=50
HSS/Round Structural Steel Tubing
Allowable Concentric Loads in Kips
Nominal Outside
ERW
16.000
14.000
12.750
10.750
9.625
Wall Thickness
0.500
0.438
0.375
0.312
0.500
0.375
0.312
0.500
0.375
0.250
0.500
0.365
0.250
0.500
0.375
0.312
0.250
0.188
Weight per Foot
82.77
72.80
62.58
52.28
72.08
54.57
45.61
65.42
49.56
33.38
54.74
40.48
28.04
48.73
37.05
31.03
25.03
18.95
Design Wall Thickness
0.465
0.407
0.349
0.291
0.465
0.349
0.291
0.465
0.349
0.233
0.465
0.340
0.233
0.465
0.349
0.291
0.233
0.174
Effective length KL in feet
Fy = 50 ksi
0
681
597
516
432
594
450
375
537
408
275
450
333
231
402
306
256
206
155
2
674
591
511
428
587
445
371
530
403
271
443
328
227
395
301
251
203
152
3
670
588
508
425
583
442
368
526
400
269
439
358
225
391
297
249
200
151
4
666
584
505
423
579
439
366
522
397
267
435
322
223
386
294
246
198
149
5
662
581
502
420
575
436
363
518
393
265
430
318
221
381
290
243
196
147
6
658
577
499
417
570
432
360
513
390
263
425
315
218
376
287
240
193
145
7
653
573
495
415
565
429
357
508
386
260
419
311
216
370
282
236
190
143
8
648
567
491
412
560
425
354
503
382
258
414
307
213
364
278
233
187
141
9
643
564
488
408
555
421
351
497
378
255
408
302
210
358
273
229
184
139
10
638
559
484
405
549
417
347
491
374
252
402
298
207
352
268
225
181
136
11
632
555
479
402
544
412
344
485
369
249
395
293
204
345
263
220
178
134
12
627
550
475
398
537
408
340
479
364
246
388
288
200
338
258
216
174
131
13
621
544
471
394
531
403
336
473
360
243
381
283
197
330
252
211
170
129
14
615
539
466
391
525
398
332
466
355
239
374
278
193
322
246
206
167
126
15
608
534
462
387
518
393
328
459
349
236
367
272
189
314
240
202
163
123
16
602
528
457
383
511
388
324
452
344
232
359
266
186
306
234
196
159
120
17
595
522
452
378
504
383
319
444
339
229
351
261
182
298
228
191
154
116
18
588
516
447
374
497
377
315
437
333
225
342
255
177
389
221
186
150
113
19
581
510
441
370
489
372
310
429
327
221
334
248
173
280
214
180
146
110
20
574
504
436
365
482
366
305
421
321
217
325
242
169
270
207
174
141
106
103
21
567
498
430
361
474
360
301
413
315
213
316
236
164
261
200
168
136
22
559
491
425
356
466
354
296
405
309
209
307
229
160
251
193
162
131
99
23
552
484
419
351
458
348
290
396
302
204
298
222
155
241
185
156
126
96
24
544
477
413
346
449
342
285
387
296
200
288
215
150
230
178
149
121
92
25
536
470
407
341
441
335
280
378
289
196
278
208
145
219
170
143
116
88
26
528
463
401
336
432
329
275
369
282
191
268
200
140
208
161
136
110
84
27
519
456
395
331
423
322
269
360
275
186
257
193
135
197
153
129
105
80
28
511
449
389
326
414
315
263
350
268
182
247
185
130
185
144
122
99
75
29
502
441
382
320
405
308
258
340
261
177
236
177
124
173
135
114
93
71
30
494
434
375
315
395
301
252
330
253
172
224
169
119
162
126
107
87
66
31
485
426
369
309
386
294
246
320
245
167
213
160
113
152
118
100
82
62
32
476
418
362
304
376
287
240
310
238
162
201
152
107
142
111
94
77
58
33
466
410
355
298
366
279
234
299
230
156
189
143
101
134
104
88
72
55
34
457
402
348
292
356
272
227
288
222
151
178
135
96
126
98
83
68
52
35
447
393
341
286
345
264
221
277
213
146
168
127
90
119
93
79
64
49
36
438
385
333
280
335
256
214
266
205
140
159
120
85
113
88
74
61
46
37
428
376
326
274
324
248
208
255
196
134
151
114
81
107
83
70
57
44
41
38
418
367
318
268
313
240
201
243
188
128
143
108
77
101
79
67
54
39
407
358
311
261
302
231
194
231
179
122
136
102
73
96
75
63
52
39
40
397
349
303
255
290
223
187
220
170
117
129
97
69
91
71
60
49
37
Area, In²
22.7
19.9
17.2
14.4
19.8
15.0
12.5
17.9
13.6
9.2
15.0
11.1
7.8
13.4
10.2
8.53
6.87
5.17
I, In4
685
606
526
443
453
349
295
339
262
180
199
151
106
141
110
93.0
75.9
57.7
r, In.
5.49
5.51
5.53
5.55
4.79
4.83
4.85
4.35
4.39
4.43
3.64
3.68
3.72
3.24
3.28
3.30
3.32
3.34
B, Bending Factor
0.265
0.263
0.262
0.260
0.306
0.301
0.297
0.337
0.331
0.324
0.405
0.395
0.390
0.457
0.446
0.441
0.436
0.431
a ÷ 106
102.0
90.5
78.5
66.2
67.6
52.1
44.1
50.6
39.1
26.9
29.7
22.5
15.8
21.1
16.4
13.9
11.3
8.62
PROPERTIES
26
Fy=50
HSS/Round Structural Steel Tubing
Allowable Concentric Loads in Kips
Nominal Outside
ERW
8.625
7.000
6.625
Wall Thickness
0.500 0.375 0.322 0.250 0.188 0.500 0.375 0.312 0.250 0.188 0.125 0.500 0.432 0.375 0.312 0.280 0.250 0.188 0.125
Weight per Foot
43.39 33.04 28.55 22.36 16.94 34.71 26.53 22.29 18.02 13.68
9.18
32.71 28.57 25.03 21.04 18.97 17.02 12.20
8.68
Design Wall Thickness 0.465 0.349 0.300 0.233 0.174 0.465 0.349 0.291 0.233 0.174 0.116 0.465 0.403 0.349 0.291 0.261 0.233 0.174 0.116
Effective length KL in feet
Fy = 50 ksi
0
357
272
236
184
139
287
219
184
149
112
76
270
236
206
174
157
140
106
71
2
350
267
231
181
136
279
213
179
145
109
73
263
230
201
169
152
137
103
69
3
346
264
228
178
134
275
210
176
143
107
72
258
226
197
166
150
134
101
68
4
341
260
225
176
133
270
206
173
140
106
71
253
221
194
163
147
132
100
67
5
336
256
222
174
131
264
202
170
137
104
70
247
217
189
159
144
129
97
65
6
330
252
218
171
129
258
197
166
134
101
68
241
211
185
156
140
126
95
64
7
324
248
215
168
127
252
193
162
131
99
67
234
206
180
152
137
123
93
62
8
318
243
211
165
124
245
187
158
128
96
65
227
199
175
147
133
119
90
61
9
312
238
206
162
122
238
182
153
124
94
63
220
193
169
143
129
116
87
59
10
305
233
202
158
119
230
176
149
120
91
61
212
186
162
138
124
112
84
57
11
298
228
197
155
117
222
170
144
116
88
59
204
179
157
133
120
108
81
55
12
290
222
193
151
114
214
164
138
112
85
57
195
172
150
127
115
103
78
53
13
282
216
188
147
111
205
157
133
108
82
55
186
164
144
122
110
99
75
51
14
274
210
182
143
108
196
151
127
103
78
53
176
155
137
116
105
94
71
48
15
266
204
177
139
105
186
143
121
99
75
51
166
147
129
110
99
89
68
46
16
257
197
171
135
102
176
136
115
94
71
48
156
138
122
103
94
84
64
43
17
248
191
166
130
98
166
128
109
89
67
46
145
129
114
97
88
79
60
41
18
239
184
160
125
95
155
120
102
83
63
43
134
119
105
90
82
74
56
38
19
229
176
153
121
91
144
112
95
78
59
40
123
109
97
83
75
68
52
35
20
219
169
147
116
88
133
104
88
72
55
38
111
99
88
75
69
62
48
32
21
209
161
141
111
84
121
95
81
66
51
35
101
90
80
68
62
56
43
29
22
198
153
134
105
80
110
86
74
61
46
32
92
82
73
62
57
51
39
27
23
187
145
127
100
76
101
79
67
55
42
29
84
75
66
57
52
47
36
25
24
176
137
120
95
72
93
72
62
51
39
27
77
69
61
52
48
43
33
23
25
164
128
112
89
68
85
67
57
47
36
25
71
63
56
48
44
40
30
21
26
152
119
105
83
63
79
62
53
43
33
23
66
59
52
45
41
37
28
19
27
141
111
97
77
59
73
57
49
40
31
21
61
54
48
41
38
34
26
18
28
131
103
90
72
55
68
53
46
37
29
20
57
50
45
38
35
32
24
17
29
123
96
84
67
51
63
50
42
35
27
18
53
47
42
36
33
29
23
15
30
115
90
79
62
48
59
46
40
33
25
17
49
44
39
33
30
28
21
14
31
107
84
74
58
45
55
43
37
31
23
16
46
41
37
31
29
26
20
14
32
101
79
69
55
42
52
41
35
29
22
15
43
39
34
29
27
24
19
13
33
95
74
65
52
39
49
38
33
27
21
14
41
36
32
28
25
23
17
12
34
89
70
61
49
37
46
36
31
25
19
13
38
34
30
26
24
21
16
11
35
84
66
58
46
35
44
34
29
24
18
13
36
32
29
25
22
20
16
11
34
31
10
36
80
62
55
43
33
41
32
28
23
17
12
37
75
59
52
41
31
39
30
26
21
16
11
38
71
56
49
39
30
37
29
25
20
16
11
27
23
19
15
10
14
10
27
23
21
19
15
26
22
20
18
14
9
13
9
39
68
53
47
37
28
40
64
50
44
35
27
Area, In²
11.9
9.07
7.85
6.14
4.62
9.55
7.29
6.13
4.95
3.73
2.51
9.00
7.88
6.88
5.79
5.22
4.68
3.53
2.37
I, In4
99.5
77.8
68.1
54.1
41.3
51.2
40.4
34.6
28.4
21.7
14.9
42.9
38.3
34.0
29.1
26.5
23.9
18.4
12.6
2.89
2.93
2.95
2.97
2.99
2.32
2.35
2.37
2.39
2.41
2.43
2.18
2.20
2.22
2.24
2.25
2.26
2.28
2.30
PROPERTIES
r, In.
B, Bending Factor
a ÷ 106
27
0.516 0.503 0.497 0.489 0.482 0.653 0.632 0.620 0.610 0.602 0.590 0.695 0.682 0.670 0.659 0.653 0.649 0.635 0.623
14.9
11.6
10.2
8.08
6.17
7.65
6.03
5.17
4.24
3.24
2.23
6.41
5.72
5.08
4.35
3.96
3.57
2.75
1.88
Fy=50
HSS/Round Structural Steel Tubing
Allowable Concentric Loads in Kips
ERW
6.000
5.563
5.500
5.000
4.500
0.500
0.375
0.312
0.280
0.250
0.188
0.125
0.375
0.258
0.188
0.375
0.258
0.375
0.312
0.258
0.250
0.188
0.125
0.337
0.237
0.188
29.37
23.03
18.95
17.11
15.35
11.67
7.84
20.78
14.62
10.79
20.53
14.44
18.52
15.62
13.07
12.68
9.66
6.51
14.98
10.79
8.66
0.125
5.84
0.465
0.349
0.291
0.261
0.233
0.174
0.116
0.349
0.241
0.174
0.349
0.241
0.349
0.291
0.241
0.233
0.174
0.116
0.315
0.221
0.174
0.116
243
186
157
141
127
95
64
172
121
89
170
119
153
129
108
105
79
53
124
89
71
48
235
180
152
137
123
93
62
166
117
86
164
115
147
124
104
101
76
51
119
85
68
46
230
177
149
134
120
91
61
162
114
84
160
113
143
121
101
98
74
50
115
83
66
45
225
173
146
131
118
89
60
158
112
82
156
110
139
117
98
95
72
49
111
80
64
43
219
168
142
128
115
87
58
154
108
80
151
107
134
113
95
92
70
47
107
77
61
42
213
164
138
125
112
84
57
149
105
77
146
104
129
109
92
89
67
46
102
73
59
40
206
158
134
121
108
82
55
143
101
75
141
100
123
105
88
85
65
44
96
70
56
38
198
153
129
117
105
79
53
138
97
72
135
96
117
100
84
81
62
42
91
66
52
36
190
147
124
112
101
76
51
132
93
69
129
92
111
94
79
77
59
40
84
61
49
34
182
141
119
108
97
73
49
125
89
66
123
87
104
89
74
72
55
37
78
57
46
31
173
134
114
103
92
70
47
118
84
62
116
83
97
83
69
68
52
35
71
52
42
29
164
127
108
98
88
67
45
111
79
59
109
78
89
76
64
63
48
33
63
47
38
26
154
120
102
92
83
63
43
104
74
55
101
73
81
70
59
57
44
30
56
41
34
23
144
113
96
87
78
59
40
96
69
51
93
67
73
63
53
52
40
27
48
36
29
20
134
105
89
81
73
56
38
88
63
47
85
61
64
55
47
46
36
24
42
31
25
18
123
97
83
75
68
52
35
79
57
43
77
56
56
9
41
40
31
22
37
27
22
16
111
88
76
69
62
47
32
70
51
39
68
49
50
43
36
36
28
19
33
24
20
14
99
79
68
62
56
43
30
63
46
34
61
44
44
38
33
32
25
17
29
22
18
12
89
71
61
56
50
39
27
56
41
31
54
40
40
34
29
29
22
15
26
19
16
11
81
64
55
50
46
35
24
51
37
28
49
36
36
31
26
26
20
14
24
18
14
10
73
58
50
46
41
32
22
46
33
25
44
32
33
28
24
23
18
13
21
16
13
9
67
53
46
42
38
29
20
42
31
23
41
30
30
26
22
21
17
11
19
15
12
8
61
49
42
38
34
26
18
38
28
21
37
27
27
24
20
20
15
10
18
13
11
8
56
45
38
35
32
24
17
35
26
19
34
25
25
22
18
18
14
10
16
12
10
7
52
41
35
32
29
22
15
32
24
18
31
23
23
20
17
17
13
9
11
9
6
48
38
33
30
27
21
14
30
22
17
29
21
21
18
16
15
12
8
44
35
30
28
25
19
13
28
20
15
27
20
20
17
14
14
11
8
41
33
28
26
23
18
12
26
19
14
25
18
13
13
10
7
38
31
26
24
22
17
11
24
18
13
23
17
36
29
25
22
20
16
11
23
16
12
22
16
34
27
23
21
19
15
10
15
12
31
25
22
20
18
14
9
24
20
18
Fy = 50 ksi
17
13
9
16
12
8
15
PROPERTIES
8.09
6.20
5.22
4.71
4.22
3.18
2.14
5.72
4.03
2.95
5.65
3.98
5.10
4.30
3.60
3.49
2.64
1.78
4.14
2.97
2.36
1.60
31.2
24.8
21.3
19.4
17.6
13.5
9.3
19.5
14.3
10.7
18.8
13.8
13.9
12.0
10.2
9.94
7.69
5.31
9.12
6.82
5.54
3.84
1.96
2.00
2.02
2.03
2.04
2.06
2.08
1.85
1.88
1.91
1.83
1.86
1.65
1.67
1.68
1.69
1.71
1.73
1.48
1.51
1.53
1.55
0.778
0.750
0.735
0.728
0.719
0.707
0.692
0.816
0.784
0.767
0.826
0.793
0.917
0.896
0.882
0.878
0.858
0.838
1.02
0.980
0.958
0.938
4.66
3.70
3.18
2.90
2.63
2.02
1.39
2.91
2.14
1.60
2.81
2.06
2.08
1.79
1.52
1.48
1.15
0.79
1.36
1.02
0.827
0.573
28
Fy=50
HSS/Round Structural Steel Tubing
Allowable Concentric Loads in Kips
ERW
Nominal Outside
4.000
3.500
Wall Thickness
0.337
0.313
0.250
0.237
0.226
0.220
0.188
0.125
0.313
0.300
0.250
0.216
0.203
0.188
Weight per Foot
13.18
12.33
10.01
9.52
9.11
8.88
7.65
5.17
10.65
10.25
8.68
7.58
7.15
6.65
0.125
4.51
Design Wall Thickness
0.315
0.291
0.233
0.221
0.211
0.205
0.174
0.116
0.291
0.280
0.233
0.201
0.189
0.174
0.116
0
110
102
93
79
75
73
63
43
88
85
72
62
59
55
37
2
104
97
79
75
72
70
60
41
82
80
67
59
56
51
35
3
100
93
76
72
69
67
58
39
79
76
65
56
53
49
33
4
96
89
73
69
66
64
55
38
75
72
61
53
51
47
32
5
91
85
69
66
63
61
53
36
70
68
58
50
48
44
30
6
86
80
65
62
60
58
50
34
65
63
53
47
44
41
28
7
80
75
61
58
56
54
47
32
59
57
49
43
41
38
26
8
74
69
57
54
52
50
43
30
53
51
44
39
37
34
23
9
68
63
52
49
47
46
40
27
47
45
39
34
32
30
21
10
61
57
47
45
43
42
36
25
39
38
33
29
28
26
18
11
53
50
41
39
38
37
32
22
33
32
28
24
23
22
15
12
45
43
35
34
32
32
24
19
27
26
23
21
19
18
13
13
38
36
30
29
28
27
23
16
23
23
20
17
17
16
11
14
33
31
26
25
24
23
20
14
20
19
17
15
14
13
9
15
29
27
23
22
21
20
18
12
18
17
15
13
12
12
8
16
25
24
20
19
18
18
15
11
15
15
13
12
11
10
7
17
22
21
18
17
16
16
14
10
14
13
12
10
10
9
6
18
20
19
16
15
14
14
12
9
12
12
10
9
9
8
6
19
18
17
14
14
13
13
11
8
11
11
9
8
8
7
5
20
16
15
13
12
12
11
10
7
21
15
Effective length KL in feet
Fy = 50 ksi
22
14
11
11
11
10
9
6
13
10
10
10
9
8
6
5
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
PROPERTIES
29
Area, In²
3.65
3.39
2.76
2.51
2.44
2.09
2.09
1.42
3.81
3.70
3.21
2.84
2.70
2.52
1.77
I, In4
6.24
5.87
4.91
4.52
4.41
3.83
3.83
2.67
1.14
1.14
1.16
1.17
1.17
1.18
1.20
r, In.
1.31
1.32
1.33
1.34
1.34
1.35
1.35
1.37
1.35
1.34
1.30
1.28
1.28
1.26
1.19
B, Bending Factor
1.17
1.16
1.12
1.11
1.11
1.09
1.09
1.06
0.569
0.553
0.479
0.424
0.403
0.375
0.264
a ÷ 106
0.932
0.877
0.733
0.675
0.659
0.572
0.572
0.399
--
--
--
--
--
--
--
Fy=50
HSS/Round Structural Steel Tubing
Allowable Concentric Loads in Kips
ERW
3.000
0.300
0.250
0.216
0.203
2.875
0.188
0.152
0.134
0.120
0.250
0.203
2.375
0.188
0.125
0.250
0.218
0.188
0.154
0.125
1.900
1.660
0.145
0.140
8.65
7.34
6.42
6.06
5.65
4.62
4.10
3.69
7.01
5.79
5.40
3.67
5.67
5.02
4.39
3.65
3.00
2.72
2.27
0.280
0.233
0.201
0.189
0.174
0.142
0.125
0.112
0.233
0.189
0.174
0.116
0.233
0.204
0.174
0.143
0.116
0.135
0.130
72
61
53
50
46
38
34
31
58
48
44
30
47
42
36
30
25
23
19
66
56
49
47
43
35
32
28
53
44
41
28
42
38
32
27
22
20
16
63
53
47
44
41
34
30
27
50
42
39
27
39
35
30
25
21
17
13
58
50
44
41
38
31
28
25
47
39
36
25
35
31
27
23
19
15
11
53
46
40
38
35
29
26
23
43
35
33
23
30
27
24
20
16
12
8
48
41
36
34
32
26
24
21
38
32
30
20
25
23
20
17
14
8
5
42
36
32
30
28
23
21
19
33
28
26
18
19
17
15
13
11
6
4
36
31
27
26
24
20
18
16
27
23
22
15
15
13
12
10
9
5
3
29
25
22
21
20
17
15
14
22
18
17
12
12
11
9
8
7
4
2
23
20
18
17
16
13
12
11
18
15
14
10
9
9
8
6
5
3
19
17
15
14
13
11
10
9
15
12
12
8
8
7
6
5
4
16
14
13
12
11
9
8
8
12
10
10
7
7
6
5
5
4
14
12
11
10
9
8
7
7
10
9
8
6
4
4
3
12
10
9
9
8
7
6
6
9
8
7
5
10
9
8
8
7
6
5
5
8
7
6
4
9
8
7
7
6
5
5
4
4
4
Fy = 50 ksi
4
PROPERTIES
2.39
2.03
1.77
1.67
1.54
1.27
1.13
1.02
1.93
1.59
1.48
1.01
1.57
1.39
1.20
1.00
0.82
0.75
0.62
2.24
1.95
1.74
1.66
1.55
1.30
1.17
1.06
1.70
1.45
1.35
0.96
0.910
0.827
0.733
0.627
0.527
0.293
0.184
0.967
0.982
0.992
0.996
1.00
1.01
1.02
1.02
0.938
0.952
0.957
0.976
0.762
0.771
0.781
0.791
0.800
0.626
0.543
1.60
1.56
1.53
1.51
1.49
1.47
1.45
1.44
1.63
1.58
1.58
1.52
2.05
2.00
1.94
1.89
1.85
2.43
2.80
0.335
0.291
0.260
0.248
0.231
0.194
0.175
0.158
0.254
0.217
0.202
0.143
0.136
0.123
1.090
0.094
0.079
0.044
0.027
30
HSS Rounds Dimension and Section Properties
OD
Wall
Wt per ft
Moment of Inertia In4
Section Modulus In³
Radius of Gyration In³
1.660
0.140
0.120
0.145
0.188
0.125
0.154
0.188
0.218
0.250
0.125
0.188
0.250
0.125
0.188
0.203
0.250
0.125
0.134
0.152
0.188
0.203
0.216
0.250
0.125
0.188
0.203
0.216
0.250
0.300
0.313
0.125
0.188
0.220
0.226
0.237
0.250
0.313
0.125
0.188
0.237
0.337
0.375
0.125
0.188
0.250
0.258
0.312
0.375
0.258
0.375
0.500
0.134
0.188
0.258
0.375
0.500
2.27
2.28
2.72
3.44
3.01
3.66
4.40
5.03
5.68
3.17
4.65
6.01
3.67
5.40
5.80
7.02
3.84
4.11
4.63
5.65
6.07
6.43
7.35
4.51
6.66
7.15
7.58
8.69
10.26
10.66
5.18
7.66
8.89
9.12
9.53
10.00
12.34
5.85
8.67
10.80
15.00
16.54
6.51
9.67
12.69
13.08
15.64
18.54
14.46
20.55
26.73
7.78
10.80
14.63
20.80
27.06
0.184
0.251
0.293
0.355
0.527
0.627
0.733
0.824
0.910
0.619
0.865
1.08
0.958
1.35
1.45
1.70
1.09
1.16
1.30
1.55
1.66
1.74
1.95
1.77
2.52
2.70
2.84
3.21
3.69
3.81
2.67
3.83
4.41
4.50
4.68
4.91
5.87
3.84
5.54
6.79
9.07
9.87
5.31
7.69
9.94
10.2
12.0
13.9
13.7
18.8
23.5
7.84
10.7
14.2
19.5
24.4
0.222
0.264
0.309
0.374
0.443
0.528
0.617
0.694
0.766
0.495
0.692
0.862
0.667
0.941
1.01
1.18
0.730
0.774
0.865
1.03
1.10
1.16
1.30
1.01
1.44
1.54
1.63
1.83
2.11
2.18
1.34
1.92
2.21
2.25
2.34
2.45
2.93
1.71
2.46
3.02
4.03
4.39
2.12
3.08
3.97
4.08
4.79
5.55
5.00
6.84
8.55
2.82
3.85
5.12
7.02
8.77
0.543
0.634
0.626
0.613
0.800
0.791
0.781
0.771
0.762
0.844
0.825
0.806
0.976
0.957
0.952
0.938
1.02
1.02
1.01
1.00
0.996
0.992
0.982
1.20
1.18
1.17
1.17
1.16
1.14
1.14
1.37
1.35
1.34
1.34
1.34
1.33
1.32
1.55
1.53
1.52
1.48
1.47
1.73
1.71
1.69
1.69
1.67
1.65
1.86
1.83
1.79
1.92
1.91
1.88
1.85
1.81
1.900
2.375
2.500
2.875
3.000
3.500
4.000
4.500
5.000
5.500
5.563
Call your Independence Tube Account Representative for floor stock availability or go on-line at www.independencetube.com.
31
HSS Rounds Dimension and Section Properties
OD
6.000
6.625
7.000
8.625
9.625
10.750
12.750
14.000
16.000
Wall
Wt per ft
Moment of Inertia In4
Section Modulus In³
Radius of Gyration In³
0.125
0.188
0.250
0.280
0.312
0.375
0.500
0.125
0.188
0.250
0.280
0.312
0.375
0.432
0.500
0.125
0.188
0.250
0.312
0.375
0.500
0.188
0.250
0.322
0.375
0.500
0.625
0.188
0.250
0.312
0.375
0.500
0.250
0.375
0.500
0.250
0.375
0.500
0.250
0.312
0.375
0.500
0.625
0.250
0.312
0.375
0.438
0.500
0.625
7.85
11.68
15.37
17.12
18.97
22.55
29.40
8.69
12.94
17.04
18.99
21.06
25.06
28.60
32.74
9.19
13.69
18.04
22.31
26.56
34.74
16.96
22.38
28.58
33.07
43.43
53.45
18.97
25.06
31.06
37.08
48.77
28.06
41.59
54.79
33.41
49.61
65.48
36.75
45.65
54.62
72.16
89.36
42.09
52.32
62.64
72.87
82.85
103.00
9.28
13.5
17.6
19.3
21.3
24.8
31.2
12.6
18.4
23.9
26.4
29.1
34.0
38.2
42.9
14.9
21.7
28.4
34.6
40.4
51.2
41.3
54.1
68.1
77.8
100
119
57.7
75.9
93.0
110
141
106
154
199
180
262
339
239
295
349
453
552
359
443
526
606
685
838
3.09
4.51
5.86
6.45
7.11
8.28
10.4
3.79
5.54
7.22
7.96
8.79
10.3
11.5
13.0
4.25
6.21
8.11
9.88
11.6
14.6
9.57
12.5
15.8
18.0
23.1
27.7
12.0
15.8
19.3
22.8
29.2
19.8
28.7
37.0
28.2
41.0
53.2
34.1
42.1
49.8
64.8
78.9
44.8
55.4
65.7
75.8
85.7
105
2.08
2.06
2.04
2.03
2.02
2.00
1.96
2.30
2.28
2.26
2.25
2.24
2.22
2.20
2.18
2.43
2.41
2.39
2.37
2.35
2.32
2.99
2.97
2.95
2.93
2.89
2.85
3.34
3.32
3.30
3.28
3.24
3.72
3.68
3.64
4.43
4.39
4.35
4.87
4.85
4.83
4.79
4.75
5.58
5.55
5.53
5.51
5.49
5.46
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32
Definitions of the SI / Metric Base Units
Unit of length
meter
The meter is the length of the path travelled by light in vacuum during a time interval
of 1/299,792,458 of a second.
Unit of mass
kilogram
The kilogram is the unit of mass; it is equal to the mass of the international
prototype of the kilogram.
Unit of time
second
The second is the duration of 9 192 631 770 periods of the radiation corresponding
to the transition between the two hyperfine levels of the ground state of the cesium
133 atom.
Unit of electric current
ampere
The ampere is that constant current which, if maintained in two straight parallel
conductors of infinite length, of negligible circular cross-section, and placed
1 meter apart in vacuum, would produce between these conductors a force equal
to 2 x 10-7 newton per meter of length.
Unit of thermodynamic temperature
kelvin
The kelvin, unit of thermodynamic temperature, is the fraction 1/273.16 of the
thermodynamic temperature of the triple point of water.
Unit of amount of substance
mole
1. The mole is the amount of substance of a system which contains as many
elementary entities as there are atoms in 0.012 kilogram of carbon 12; its
symbol is “mol.”
2. When the mole is used, the elementary entities must be specified and may be
atoms, molecules, ions, electrons, other particles, or specified groups of such
particles.
Unit of luminous intensity
candela
The candela is the luminous intensity, in a given direction, of a source that emits
monochromatic radiation of frequency 540 x 1012 hertz and that has a radiant
intensity in that direction of 1/683 watt per steradian.
33
Length
Metric System
1 millimeter = 1/1,000 meter 1 centimeter = 1/100 meter decimeter = 1/10 meter 1 meter (basic unit of length) 1 dekameter = 10 meters
1 kilometer = 1,000 meters
American and British Units
1 inch = 1/36 yard = 1/12 foot 1 foot = 1/3 yard 1 yard (basic unit of length) 1 rod = 5½ yards 1 furlong = 220 yards = 40 rods
1 mile = 1,760 yards = 5,280 feet 1 fathom = 6 feet 1 nautical mile = 6,076.1 feet
Conversion Factors
1 centimeter = 0.39 inch 1 inch = 2.54 centimeters 1 meter = 39.37 inches 1 foot = 0.305 meter 1 meter = 3.28 feet 1 yard = 0.914 meter
1 meter = 1.094 yards 1 kilometer = 0.62 mile 1 mile = 1.609 kilometers
Area
Metric System
1 square centimeter = 1/10,000 square meter 1 square decimeter = 1/100 square meter 1 square meter (basic unit of area) 1 are = 100 square meters
1 hectare = 10,000 square meters = 100 ares 1 square kilometer = 1,000,000 square meters
American and British Units
1 square inch = 1/1,296 square yard = 1/144 square foot 1 square foot = 1/9 square yard 1 square yard (basic unit of area)
1 square rod = 30 1/4 square yards 1 acre = 4,840 square yards = 160 square rods 1 square mile = 3,097,600 square yards = 640 acres
Conversion Factors
1 square centimeter = 0.155 square inch 1 square inch = 6.45 square centimeters 1 acre = 0.405 hectare 1 hectare = 2.47 acres
1 square kilometer = 0.386 square mile 1 square mile = 2.59 square kilometers
Volume and Capacity (Liquid and Dry)
Metric System
1 cubic centimeter = 1/1,000,000 cubic meter 1 cubic decimeter = 1/1,000 cubic meter 1 cubic meter = 1 stere (basic unit of volume)
1 milliliter = 1/1,000 liter = 1 cubic centimeter 1 centiliter = 1/100 liter 1 deciliter = 1/10 liter 1 liter = 1 cubic decimeter (basic unit of capacity)
1 dekaliter = 10 liters 1 hectoliter = 100 liters = 1/10 cubic meter
American and British Units
1 cubic inch = 1/46,656 cubic yard = 1/1,728 cubic foot 1 cubic foot = 1/27 cubic yard 1 cubic yard (basic unit of volume) 1 U.S. fluid ounce = 1/128
U.S. gallon = 1/16 U.S. pint 1 British imperial fluid ounce = 1/160 imperial gallon = 1/20 imperial pint
1 pint = 1/8 gallon = ½ quart 1 quart = 1/4 gallon 1 U.S. gallon (basic unit of liquid capacity in the United States) = 231 cubic inches
1 imperial gallon (basic unit of liquid capacity in some Commonwealth nations) = 277.4 cubic inches 1 dry pint = 1/64 bushel = ½ dry quart
1 dry quart = 1/32 bushel = 1/8 peck 1 peck = 1/4 bushel 1 U.S. bushel (basic unit of dry capacity in the United States) = 2,150.4 cubic inches
1 imperial bushel (basic unit of dry capacity in some Commonwealth nations) = 2,219.4 cubic inches
Conversion Factors
1 cubic centimeter = 0.06 cubic inch 1 cubic inch = 16.4 cubic centimeters 1 cubic yard = 0.765 cubic meter 1 cubic meter = 1.3 cubic yards
1 milliliter = 0.034 fluid ounce 1 fluid ounce = 29.6 milliliters 1 U.S. quart = 0.946 liter 1 liter = 1.06 U.S. quarts 1 U.S. gallon = 3.8 liters
1 imperial gallon = 1.2 U.S. gallons = 4.5 liters 1 liter = 0.9 dry quart 1 dry quart = 1.1 liters 1 dekaliter = 0.28 U.S. bushel
1 U.S. bushel = 0.97 imperial bushel = 3.5 dekaliters
Weight (Mass)
Metric System
1 milligram = 1/1,000,000 kilogram = 1/1,000 gram 1 centigram = 1/100,000 kilogram = 1/100 gram 1 decigram = 1/10,000 kilogram = 1/10 gram
1 gram = 1/1,000 kilogram 1 dekagram = 1/100 kilogram = 10 grams 1 hectogram = 1/10 kilogram = 100 grams 1 kilogram (basic unit of weight or
mass) 1 metric ton = 1,000 kilograms
American and British Units: Avoirdupois
1 grain = 1/7,000 pound = 1/437.5 ounce 1 dram = 1/256 pound = 1/16 ounce 1 ounce = 1/16 pound 1 pound (basic unit of weight or mass)
1 short hundredweight = 100 pounds 1 long hundredweight = 112 pounds 1 short ton = 2,000 pounds 1 long ton = 2,240 pounds
American and British Units: Troy and Apothecaries’
1 grain = 1/7,000 avoirdupois pound = 1/5,760 troy or apothecaries’ pound 1 apothecaries’ scruple = 20 grains = 1/3 dram 1 pennyweight =
24 grains = 1/20 troy ounce 1 apothecaries’ dram = 60 grains = 1/8 apothecaries’ ounce 1 troy or apothecaries’ ounce = 480 grains =
1/12 troy or apothecaries’ pound 1 troy or apothecaries’ pound = 5,760 grains = 5,760/7,000 avoirdupois pound
Conversion Factors
1 milligram = 0.015 grain 1 grain = 64.8 milligrams 1 gram = 0.035 avoirdupois ounce 1 avoirdupois ounce = 28.35 grams
1 troy or apothecaries’ pound = 0.82 avoirdupois pound = 0.37 kilogram 1 avoirdupois pound = 1.2 troy or apothecaries’ pounds = 0.45 kilogram
1 kilogram = 2.205 avoirdupois pounds 1 short ton = 0.9 metric ton 1 metric ton = 1.1 short tons
34
U.S. Weights And Measures Tables
Linear Measure
12 inches (in.) = 1 foot (ft.)
1 mil = 0 .001 in.
= 1 yard (yd)
3 feet
= 36"
Surveyors’ Measurements
1 link = 7.92 in
= 5½ yards
1 rod (rd)
= 16.5 ft.
= 4 rods
= 22 yds.
1 chain
= 66 ft
= 100 links
= 1 furlong (fur)
40 rods = 220 yds
= 660 ft.
= 1 statute mile (mi.)
= 80 chains
8 furlongs
= 1,760 yds
= 5,280 ft.
5,280 feet = 1 statute or land mile
Nautical Measurements
= 2 yds
1 fathom
= 6 ft.
100 fathoms = 1 cable length
10 cables length = 1 international nautical mile
= 1 international nautical mile
= length of a minute oflongitude at
6,076.11549 feet
equator
= 1.1508 statute miles
3 nautical miles = 1 league
= 1 nautical mile per hour
1 knot
= 1.1508 statute miles per hour
= 1 degree of a great circle of earth
60 nautical miles
(latitude)
= circumference of earth at equator
360 degrees = 21,600 nautical miles
= 24,856.8 statute miles
35
Area Measure
1 sq ft. = 144 square inches
= 9 sq. ft
1 sq yd
= 1,296 sq in.
= 30.25 square yards
1 sq rod = 272.25 sq ft.
= 625 sq. links
= 160 square rods
1 acre = 4,840 sq yds
= 43,560 sq ft.
1 sq mi.
= 640 acres
= 1 section (of land)
= 6 miles square
1 township = 36 sections
= 36 sq mi.
Volumes - Cubic
1,728 cubic inches = 0
27 cubic feet = 1 cu yd
Volumes - Liquid Measure
= 4 gills (gi)
1 pint (pt) = 16 fluid ounces (oz)
= 28.875 cu in.
= 2 pints
1 quart (qt)
= 57.75 cu in.
= 4 quarts
= 231 cu in.
1 gallon (gal)
= 8 pts
= 32 gills
1 cubic foot = 7.48 gallons
1 barrel = 31.5 gallons
1 hogshead = 2 barrels
Apothecaries’ Fluid Measure
= 1 fluid dram (fl dr)
60 minims (min.)
= 0.2256 cu in.
= 1 fluid ounce (fl oz)
8 fluid drams
= 1.8047 cu in.
= 1 pt = 28.875 cu in.
16 fluid ounces
= 128 fl drs
= 1 qt
= 57.75 cu in.
2 pints
= 32 fl oz
= 256 fl drs
= 1 gal
= 231 cu in.
4 quarts
= 128 fl oz
= 1,024 fl drs
Approximate Conversions To SI Units
Symbol
When You Know
Multiply By
To Find
Symbol
Symbol
When You Know
Multiply By
Length
To Find
Symbol
in
Length
in
inches
2.4
millimeters
mm
mm
millimeters
0.039
inches
ft
feet
0.305
meters
m
m
meters
3.28
feet
ft
yd
yards
0.914
meters
m
m
meters
1.09
yards
yd
mi
miles
1.61
kilometers
km
km
kilometers
0.621
miles
mi
Area
Area
in²
square inches
645.2
square
millimeters
mm²
mm²
square millimeters
0.002
square
inches
in²
ft²
square feet
0.093
square
meters
m²
m²
square meters
10.764
square feet
ft²
yd²
square yard
0.836
square
meters
m²
m²
square meters
1.195
square yards
yd²
ac
acres
0.405
hectares
ha
ha
hectares
2.47
acres
ac
2.59
square
kilometers
km²
km²
square kilometers
0.386
square miles
mi²
mi²
square miles
Volume
Volume
fl oz
fluid ounces
29.57
milliliters
mL
mL
milliliters
0.034
fluid ounces
fl oz
gal
gallons
3.785
liters
L
L
liters
0.264
gallons
gal
ft
cubic feet
0.028
cubic meters
m³
m³
cubic meters
35.314
cubic feet
ft³
yd
cubic yards
0.765
cubic meters
m³
m³
cubic meters
1.307
cubic yards
yd³
NOTE: volumes greater than 1000L shall be shown in m³
Mass
Mass
oz
ounces
28.35
grams
g
g
grams
0.035
ounces
oz
lb
pounds
0.454
kilograms
kg
kg
kilograms
2.202
pounds
lb
T
short tons
(2000lb)
megagrams
Mg
(or “t”)
Mg
(or “t”)
megagrams
(or”metric ton”)
1.13
short tons
(2000 lb)
T
ºC
Celsius
Fgahrenheit
ºF
lx
lux
0.093
foot-candles
fc
0.292
footLamberts
fl
0.907
(or metric ton)
Temperature (exact degrees)
Temperature
5 (F-32)/9
ºF
Fahrenheit
fc
foot-candles
or
(F-32)/1.8
Celsius
ºC
lux
lx
Illumination
fl
foolt - Lamberts
Illumination
10.76
3.426
candela/m²
cd/m²
cd/m²
Force and Pressure or Stress
lbf
lbf/in²
pound force
pound force per
square inch
4.45
6.89
1.8C+32
newtons
kilopascals
candela/m²
Force and Pressure or Stress
N
kPa
n
kPa
newtons
kilopascals
0.225
poundforce
lbf
0.145
poundforce
per square
inch
lbf/in²
36
37
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