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Square Structural Tube Per. ASTM 1085 Table Chart

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Square Structural Tube Per. ASTM 1085, table chart HSS Hollow Structural Section Square Structural Tube. This specification covers cold-formed welded carbon steel hollow structural sections (HSS) for welded or bolted construction.

Where:

H = Height
W = Width
t = Wall thickness
I = Area moment of inertia
S = Elastic section modulus
Z = Plastic section modulus
J = Torsional stiffness of cross section
C = Tortional shear constant or cross section
A = Section area
r = Radius, corner

Notes:

  • Cold formed and welded
  • Yield Stress Round 50 ksi min - 70 ksi max
  • Tensile stress 65 ksi min
  • Wall thickness -5%
  • Mass tolerance -3.5%
  • CVN 25 ft-lbs at 40 degrees F
  • Heat treating optional

Square Hollow structural sections (HSS) Table Chart per ASTM 1085 Table Chart

Shape
H x B x t
Wall
Thickness, t
in.
Nominal Wt
lb/ft
Area, A
in2
b/t
h/t
I
S
r
Z
Torsion
Surface Area
J
C
in4
in3
in.
in3
in4
in3
ft2/ft
22 x 22 x 7/8
0.875
244.88
72.0
21.5
21.5
5280
480
8.56
565
8420
778
7.08
x 3/4
0.750
212.00
62.3
25.7
25.7
4630
421
8.62
492
7330
676
7.12
20 x 20 x 7/8
0.875
221.06
65.0
19.3
19.3
3900
390
7.75
461
6260
638
6.42
x 3/4
0.750
191.58
56.3
23.1
23.1
3430
343
7.81
403
5460
554
6.45
x 5/8
0.625
161.40
47.4
28.4
28.4
2940
294
7.88
342
4620
468
6.49
x 1/2
0.500
130.52
38.4
36.4
36.4
2410
241
7.92
279
3760
380
6.52
18 x 18 x 7/8
0.875
197.24
58.0
17.0
17.0
2780
309
6.92
368
4500
511
5.75
x 3/4
0.750
171.16
50.3
20.4
20.4
2460
273
6.99
322
3930
445
5.79
x 5/8
0.625
144.39
42.4
25.2
25.2
2110
234
7.05
274
3340
376
5.82
x 1/2
0.500
116.91
34.4
32.4
32.4
1740
193
7.11
224
2720
306
5.86
16 x 16 x 7/8
0.875
173.43
51.0
14.7
14.7
1900
238
6.10
285
3100
398
5.08
x 3/4
0.750
150.75
44.3
17.7
17.7
1690
211
6.18
250
2720
347
5.12
x 5/8
0.625
127.37
37.4
22.0
22.0
1450
181
6.23
214
2320
295
5.15
x 1/2
0.500
103.30
30.4
28.4
28.4
1200
150
6.28
175
1890
240
5.19
x 3/8
0.375
78.52
23.1
39.5
39.5
931
116
6.35
134
1450
183
5.23
x 5/16
0.313
65.87
19.4
47.9
47.9
790
98.8
6.38
114
1220
154
5.24
14 x 14 x 7/8
0.875
149.61
44.0
12.4
12.4
1230
176
5.29
213
2030
299
4.42
x 3/4
0.750
130.33
38.3
15.1
15.1
1100
157
5.36
188
1790
262
4.45
x 5/8
0.625
110.36
32.4
18.8
18.8
952
136
5.42
161
1530
223
4.49
x 1/2
0.500
89.68
26.4
24.4
24.4
791
113
5.47
132
1250
182
4.52
x 3/8
0.375
68.31
20.1
34.1
34.1
615
87.9
5.53
102
960
139
4.56
x 5/16
0.313
57.36
16.9
41.5
41.5
523
74.7
5.56
86.2
810
117
4.58
12 x 12 x 3/4
0.750
109.91
32.3
12.4
12.4
666
111
4.54
134
1100
188
3.79
x 5/8
0.625
93.34
27.4
15.6
15.6
580
96.7
4.60
116
943
161
3.82
x 1/2
0.500
76.07
22.4
20.4
20.4
486
81.0
4.66
95.4
777
132
3.86
x 3/8
0.375
58.10
17.1
28.8
28.8
380
63.3
4.71
73.9
599
101
3.89
x 5/16
0.313
48.86
14.4
35.1
35.1
324
54.0
4.74
62.6
507
85.4
3.91
x 1/4
0.250
39.43
11.6
44.8
44.8
265
44.2
4.78
50.8
410
69.0
3.93
x 3/16
0.188
29.84
8.79
60.6
60.6
203
33.8
4.81
38.8
313
52.4
3.95
Shape
H x B x t
Wall
Thickness, t
in.
Nominal Wt
lb/ft
Area, A
in2
b/t
h/t
I
S
r
Z
Torsion
Surface Area
J
C
in4
in3
in.
in3
in4
in3
ft2/ft
10 x 10 x 3/4
0.750
89.50
26.3
9.73
9.7
364
72.8
3.72
89.4
610
127
3.12
x 5/8
0.625
76.33
22.4
12.4
12.4
321
64.2
3.79
77.6
529
109
3.15
x 1/2
0.500
62.46
18.4
16.4
16.4
271
54.2
3.84
64.6
439
89.8
3.19
x 3/8
0.375
47.90
14.1
23.5
23.5
214
42.8
3.90
50.4
341
69.3
3.23
x 5/16
0.313
40.35
11.9
28.7
28.7
184
36.8
3.93
42.8
289
58.6
3.24
x 1/4
0.250
32.63
9.59
36.8
36.8
151
30.2
3.97
34.9
235
47.5
3.26
x 3/16
0.188
24.73
7.29
50.0
50.0
116
23.2
3.99
26.7
180
36.2
3.28
9 x 9 x 5/8
0.625
67.82
19.9
10.8
10.8
227
50.4
3.38
61.5
377
86.7
2.82
x 1/2
0.500
55.66
16.4
14.4
14.4
193
42.9
3.43
51.4
315
71.8
2.86
x 3/8
0.375
42.79
12.6
20.8
20.8
154
34.2
3.50
40.3
246
55.6
2.89
x 5/16
0.313
36.10
10.6
25.6
25.6
132
29.3
3.53
34.3
209
47.1
2.91
x 1/4
0.250
29.23
8.59
32.8
32.8
109
24.2
3.56
28.0
170
38.2
2.93
x 3/16
0.188
22.18
6.54
44.7
44.7
84.0
18.7
3.58
21.5
130
29.2
2.95
8 x 8 x 5/8
0.625
59.32
17.4
9.20
9.20
153
38.2
2.97
47.2
258
67.0
2.49
x 1/2
0.500
48.85
14.4
12.4
12.4
131
32.8
3.02
39.7
217
55.8
2.52
x 3/8
0.375
37.69
11.1
18.1
18.1
106
26.5
3.09
31.3
170
43.4
2.56
x 5/16
0.313
31.84
9.37
22.4
22.4
91.0
22.8
3.12
26.8
145
36.9
2.58
x 1/4
0.250
25.82
7.59
28.8
28.8
75.2
18.8
3.15
21.9
118
30.0
2.60
x 3/16
0.188
19.63
5.78
39.4
39.4
58.4
14.6
3.18
16.9
90.8
22.9
2.61
7 x 7 x 5/8
0.625
50.81
14.9
7.60
7.60
97.6
27.9
2.56
34.8
166
49.9
2.15
x 1/2
0.500
42.05
12.4
10.4
10.4
84.7
24.2
2.61
29.6
141
41.8
2.19
x 3/8
0.375
32.58
9.58
15.5
15.5
68.7
19.6
2.68
23.5
112
32.7
2.23
x 5/16
0.313
27.59
8.12
19.2
19.2
59.6
17.0
2.71
20.1
95.7
27.9
2.24
x 1/4
0.250
22.42
6.59
24.8
24.8
49.4
14.1
2.74
16.5
78.3
22.7
2.26
x 3/16
0.188
17.08
5.03
34.0
34.0
38.6
11.0
2.77
12.8
60.3
17.4
2.28
Shape
H x B x t
Wall
Thickness, t
in.
Nominal Wt
lb/ft
Area, A
in2
b/t
h/t
I
S
r
Z
Torsion
Surface Area
J
C
in4
in3
in.
in3
in4
in3
ft2/ft
6 x 6 x 5/8
0.625
42.30
12.4
6.00
6.00
57.4
19.1
2.15
24.3
99.5
35.2
1.82
x 1/2
0.500
35.24
10.4
8.40
8.40
50.5
16.8
2.20
20.9
85.6
29.8
1.86
x 3/8
0.375
27.48
8.08
12.8
12.8
41.6
13.9
2.27
16.8
68.5
23.5
1.89
x 5/16
0.313
23.34
6.87
16.0
16.0
36.3
12.1
2.30
14.5
59.0
20.1
1.91
x 1/4
0.250
19.02
5.59
20.8
20.8
30.3
10.1
2.33
11.9
48.5
16.5
1.93
x 3/16
0.188
14.53
4.28
28.7
28.7
23.8
7.93
2.36
9.26
37.5
12.7
1.95
5-1/2 x 5-1/2 x 3/8
0.375
24.93
7.33
11.5
11.5
31.3
11.4
2.07
13.8
51.9
19.5
1.73
x 5/16
0.313
21.21
6.24
14.4
14.4
27.4
10.0
2.10
12.0
44.8
16.7
1.74
x 1/4
0.250
17.32
5.09
18.8
18.8
23.0
8.36
2.13
9.91
37.0
13.7
1.76
x 3/16
0.188
13.25
3.90
26.1
26.1
18.1
6.58
2.15
7.71
28.7
10.6
1.78
5 x 5 x 1/2
0.500
28.43
8.36
6.40
6.40
27.1
10.8
1.80
13.7
46.8
19.8
1.52
x 3/8
0.375
22.37
6.58
10.1
10.1
22.8
9.12
1.86
11.2
38.2
15.8
1.56
x 5/16
0.313
19.08
5.62
12.8
12.8
20.1
8.04
1.89
9.71
33.1
13.6
1.58
x 1/4
0.250
15.62
4.59
16.8
16.8
16.9
6.76
1.92
8.07
27.4
11.2
1.60
x 3/16
0.188
11.97
3.53
23.4
23.4
13.4
5.36
1.95
6.31
21.4
8.68
1.61
4-1/2 x 4-1/2 x 1/2
0.500
25.03
7.36
5.40
5.40
18.7
8.31
1.59
10.7
32.7
15.5
1.36
x 3/8
0.375
19.82
5.83
8.80
8.80
16.0
7.11
1.66
8.81
27.1
12.6
1.39
x 5/16
0.313
16.96
4.99
11.2
11.2
14.2
6.31
1.69
7.69
23.6
10.9
1.41
x 1/4
0.250
13.91
4.09
14.8
14.8
12.1
5.38
1.72
6.43
19.7
8.97
1.43
x 3/16
0.188
10.70
3.15
20.7
20.7
9.62
4.28
1.75
5.05
15.4
6.97
1.45
4 x 4 x 1/2
0.500
21.63
6.36
4.40
4.40
12.3
6.15
1.39
8.02
21.8
11.8
1.19
x 3/8
0.375
17.27
5.08
7.47
7.47
10.7
5.35
1.45
6.72
18.4
9.65
1.23
x 5/16
0.313
14.83
4.36
9.58
9.58
9.59
4.80
1.48
5.91
16.1
8.39
1.24
x 1/4
0.250
12.21
3.59
12.8
12.8
8.22
4.11
1.51
4.97
13.5
6.97
1.26
x 3/16
0.188
9.42
2.78
18.1
18.1
6.61
3.30
1.54
3.92
10.7
5.44
1.28
3-1/2 x 3-1/2 x 3/8
0.375
14.72
4.33
6.13
6.13
6.74
3.85
1.25
4.91
11.7
7.12
1.06
x 5/16
0.313
12.70
3.74
7.98
7.98
6.11
3.49
1.28
4.36
10.4
6.24
1.08
x 1/4
0.250
10.51
3.09
10.8
10.8
5.29
3.02
1.31
3.69
8.82
5.22
1.10
x 3/16
0.188
8.15
2.40
15.4
15.4
4.30
2.46
1.34
2.94
7.00
4.10
1.11
Shape
H x B x t
Wall
Thickness, t
in.
Nominal Wt
lb/ft
Area, A
in2
b/t
h/t
I
S
r
Z
Torsion
Surface Area
J
C
in4
in3
in.
in3
in4
in3
ft2/ft
3 x 3 x 3/8
0.375
12.17
3.58
4.80
4.80
3.89
2.59
1.04
3.38
6.89
4.96
0.893
x 5/16
0.313
10.58
3.11
6.38
6.38
3.59
2.39
1.07
3.04
6.22
4.40
0.910
x 1/4
0.250
8.81
2.59
8.80
8.80
3.16
2.11
1.10
2.61
5.35
3.72
0.928
x 3/16
0.188
6.87
2.02
12.8
12.8
2.61
1.74
1.14
2.10
4.29
2.95
0.946
2-1/2 x 2-1/2 x 5/16
0.313
8.45
2.49
4.79
4.79
1.88
1.50
0.869
1.96
3.33
2.88
0.744
x 1/4
0.250
7.11
2.09
6.80
6.80
1.69
1.35
0.899
1.71
2.92
2.47
0.762
x 3/16
0.188
5.59
1.65
10.1
10.1
1.43
1.14
0.931
1.40
2.39
1.98
0.780
2-1/4 x 2-1/4 x 1/4
0.250
6.26
1.84
5.80
5.80
1.17
1.04
0.797
1.33
2.05
1.94
0.678
x 3/16
0.188
4.96
1.46
8.77
8.77
1.00
0.889
0.828
1.10
1.70
1.57
0.696
2 x 2 x 1/4
0.250
5.41
1.59
4.80
4.80
0.769
0.769
0.695
1.00
1.36
1.47
0.595
x 3/16
0.188
4.32
1.27
7.44
7.44
0.670
0.670
0.726
0.841
1.15
1.21
0.613

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