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Rectangle Structural Tube Per. ASTM 1085 Table Chart

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Rectangle 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

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

Shape
h x b x t

Design Wall
Thickness, t
in.
Nominal
Wt
lb/ft
Area, A
in2
b/t
h/t
Axis x - x
Axis Y-Y
Torsion
Surface Area
I
S
r
Z
I
S
r
Z
J
C
in4
in3
in.
in3
in4
in3
in.
in3
in4
in3
ft2/ft
24 x 12 x 3/4
0.750
171.16
50.3
12.4
28.4
3650
304
8.52
382
1240
207
4.97
235
3030
391
5.79
x 5/8
0.625
144.39
42.4
15.6
34.8
3130
261
8.59
325
1070
178
5.02
201
2590
331
5.82
x 1/2
0.500
116.91
34.4
20.4
44.4
2580
215
8.66
266
883
147
5.07
164
2120
270
5.86
20 x 12 x 3/4
0.750
150.75
44.3
12.4
23.1
2320
232
7.24
287
1050
175
4.87
202
2360
323
5.12
x 5/8
0.625
127.37
37.4
15.6
28.4
2000
200
7.31
245
904
151
4.92
172
2010
275
5.15
x 1/2
0.500
103.30
30.4
20.4
36.4
1650
165
7.37
201
750
125
4.97
141
1650
224
5.19
x 3/8
0.375
78.52
23.1
28.8
50.1
1280
128
7.44
154
583
97.2
5.02
109
1270
171
5.23
x 5/16
0.313
65.87
19.4
35.1
60.7
1080
108
7.46
130
495
82.5
5.05
91.9
1070
144
5.24
20 x 8 x 5/8
0.625
110.36
32.4
9.20
28.4
1530
153
6.87
197
358
89.5
3.32
103
973
178
4.49
x 1/2
0.500
89.68
26.4
12.4
36.4
1270
127
6.94
162
300
75.0
3.37
84.7
806
146
4.52
x 3/8
0.375
68.31
20.1
18.1
50.1
988
98.8
7.01
125
236
59.0
3.43
65.6
625
112
4.56
x 5/16
0.313
57.36
16.9
22.4
60.7
840
84.0
7.05
106
202
50.5
3.46
55.6
530
94.6
4.58
20 x 4 x 1/2
0.500
76.07
22.4
4.40
36.4
889
88.9
6.30
123
61.6
30.8
1.66
36.0
205
67.8
3.86
x 3/8
0.375
58.10
17.1
7.47
50.1
699
69.9
6.39
95.3
50.3
25.2
1.72
28.5
165
53.2
3.89
x 5/16
0.313
48.86
14.4
9.58
60.7
597
59.7
6.44
80.9
43.7
21.8
1.74
24.4
143
45.3
3.91
x 1/4
0.250
39.43
11.6
12.8
76.8
488
48.8
6.49
65.7
36.4
18.2
1.77
20.0
118
37.0
3.93
18 x 6 x 5/8
0.625
93.34
27.4
6.00
25.2
977
109
5.97
144
166
55.3
2.46
64.6
489
116
3.82
x 1/2
0.500
76.07
22.4
8.40
32.4
818
90.9
6.04
119
142
47.3
2.52
53.9
410
95.8
3.86
x 3/8
0.375
58.10
17.1
12.8
44.8
641
71.2
6.12
92.2
113
37.7
2.57
42.1
322
74.2
3.89
x 5/16
0.313
48.86
14.4
16.0
54.3
547
60.8
6.16
78.2
97.1
32.4
2.60
35.8
275
62.8
3.91
x 1/4
0.250
39.43
11.6
20.8
68.8
447
49.7
6.21
63.5
80.0
26.7
2.63
29.2
224
51.0
3.93
16 x 12 x 3/4
0.750
130.33
38.3
12.4
17.7
1340
168
5.91
205
856
143
4.73
168
1710
256
4.45
x 5/8
0.625
110.36
32.4
15.6
22.0
1160
145
5.98
175
742
124
4.79
144
1460
218
4.49
x 1/2
0.500
89.68
26.4
20.4
28.4
962
120
6.04
144
618
103
4.84
118
1200
178
4.52
x 3/8
0.375
68.31
20.1
28.8
39.5
748
93.5
6.10
111
482
80.3
4.90
91.3
922
136
4.56
x 5/16
0.313
57.36
16.9
35.1
47.9
636
79.5
6.13
93.9
410
68.3
4.93
77.3
779
115
4.58
Shape
h x b x t
Design Wall
Thickness, t
in.
Nominal
Wt
lb/ft
Area, A
in2
b/t
h/t
Axis x - x
Axis Y-Y
Torsion
Surface Area
I
S
r
Z
I
S
r
Z
J
C
in4
in3
in.
in3
in4
in3
in.
in3
in4
in3
ft2/ft
16 x 8 x 5/8
0.625
93.34
27.4
9.20
22.0
863
108
5.61
137
290
72.5
3.25
84.1
723
141
3.82
x 1/2
0.500
76.07
22.4
12.4
28.4
722
90.2
5.68
113
244
61.0
3.30
69.7
599
116
3.86
x 3/8
0.375
58.10
17.1
18.1
39.5
565
70.6
5.75
87.6
193
48.2
3.36
54.2
465
89.2
3.89
x 5/16
0.313
48.86
14.4
22.4
47.9
482
60.2
5.79
74.3
165
41.2
3.39
46.0
395
75.4
3.91
x 1/4
0.250
39.43
11.6
28.8
60.8
393
49.1
5.82
60.3
135
33.8
3.41
37.4
321
61.0
3.93
16 x 4 x 5/8
0.625
76.33
22.4
2.80
22.0
568
71.0
5.04
98.5
56.4
28.2
1.59
34.2
182
63.9
3.15
x 1/2
0.500
62.46
18.4
4.40
28.4
481
60.1
5.11
82.2
49.3
24.6
1.64
29.0
157
53.8
3.19
x 3/8
0.375
47.90
14.1
7.47
39.5
382
47.8
5.21
64.2
40.4
20.2
1.69
23.0
127
42.3
3.23
x 5/16
0.313
40.35
11.9
9.58
47.9
328
41.0
5.25
54.6
35.2
17.6
1.72
19.8
110
36.1
3.24
x 1/4
0.250
32.63
9.59
12.8
60.8
269
33.6
5.30
44.5
29.3
14.6
1.75
16.2
90.6
29.5
3.26
x 3/16
0.188
24.73
7.29
18.1
81.9
208
26.0
5.34
34.1
23.0
11.5
1.78
12.5
70.3
22.6
3.28
14 x 10 x 5/8
0.625
93.34
27.4
12.4
18.8
728
104
5.15
127
431
86.2
3.97
101
885
156
3.82
x 1/2
0.500
76.07
22.4
16.4
24.4
608
86.9
5.21
105
361
72.2
4.01
83.6
730
128
3.86
x 3/8
0.375
58.10
17.1
23.5
34.1
476
68.0
5.28
81.5
284
56.8
4.08
64.8
564
98.2
3.89
x 5/16
0.313
48.86
14.4
28.7
41.5
406
58.0
5.31
69.1
242
48.4
4.10
55.0
478
82.9
3.91
x 1/4
0.250
39.43
11.6
36.8
52.8
331
47.3
5.34
56.0
198
39.6
4.13
44.6
387
67.0
3.93
14 x 6 x 5/8
0.625
76.33
22.4
6.00
18.8
504
72.0
4.74
94.0
130
43.3
2.41
51.2
352
88.9
3.15
x 1/2
0.500
62.46
18.4
8.40
24.4
426
60.9
4.81
78.3
111
37.0
2.46
42.9
296
73.8
3.19
x 3/8
0.375
47.90
14.1
12.8
34.1
337
48.1
4.89
61.1
89.1
29.7
2.51
33.6
233
57.3
3.23
x 5/16
0.313
40.35
11.9
16.0
41.5
289
41.3
4.93
51.9
76.9
25.6
2.54
28.7
199
48.6
3.24
x 1/4
0.250
32.63
9.59
20.8
52.8
237
33.9
4.97
42.3
63.4
21.1
2.57
23.4
162
39.5
3.26
x 3/16
0.188
24.73
7.29
28.7
71.3
182
26.0
5.00
32.4
49.2
16.4
2.60
18.0
125
30.2
3.28
14 x 4 x 5/8
0.625
67.82
19.9
2.80
18.8
392
56.0
4.44
77.3
49.2
24.6
1.57
30.0
154
55.5
2.82
x 1/2
0.500
55.66
16.4
4.40
24.4
335
47.9
4.52
64.8
43.1
21.6
1.62
25.5
134
46.8
2.86
x 3/8
0.375
42.79
12.6
7.47
34.1
267
38.1
4.60
50.8
35.4
17.7
1.68
20.3
108
36.8
2.89
x 5/16
0.313
36.10
10.6
9.58
41.5
230
32.9
4.66
43.4
30.9
15.4
1.71
17.4
93.2
31.5
2.91
x 1/4
0.250
29.23
8.59
12.8
52.8
189
27.0
4.69
35.4
25.8
12.9
1.73
14.3
77.0
25.7
2.93
x 3/16
0.188
22.18
6.54
18.1
71.3
147
21.0
4.74
27.2
20.3
10.2
1.76
11.1
59.8
19.8
2.95
Shape
h x b x t
Design Wall
Thickness, t
in.
Nominal
Wt
lb/ft
Area, A
in2
b/t
h/t
Axis x - x
Axis Y-Y
Torsion
Surface
Area
I
S
r
Z
I
S
r
Z
J
C
in4
in3
in.
in3
in4
in3
in.
in3
in4
in3
ft2/ft
12 x 10 x 1/2
0.500
69.27
20.4
16.4
20.4
419
69.8
4.53
83.9
316
63.2
3.94
74.1
581
109
3.52
x 3/8
0.375
53.00
15.6
23.5
28.8
330
55.0
4.60
65.2
249
49.8
4.00
57.6
450
83.7
3.56
x 5/16
0.313
44.60
13.1
28.7
35.1
282
47.0
4.64
55.3
213
42.6
4.03
48.9
381
70.8
3.58
x 1/4
0.250
36.03
10.6
36.8
44.8
230
38.3
4.66
44.9
174
34.8
4.05
39.7
309
57.2
3.60
12 x 8 x 5/8
0.625
76.33
22.4
9.20
15.6
419
69.8
4.32
87.1
221
55.2
3.14
65.6
481
104
3.15
x 1/2
0.500
62.46
18.4
12.4
20.4
353
58.8
4.38
72.4
188
47.0
3.20
54.7
401
85.8
3.19
x 3/8
0.375
47.90
14.1
18.1
28.8
279
46.5
4.45
56.5
149
37.2
3.25
42.7
312
66.3
3.23
x 5/16
0.313
40.35
11.9
22.4
35.1
239
39.8
4.48
48.0
128
32.0
3.28
36.4
265
56.1
3.24
x 1/4
0.250
32.63
9.59
28.8
44.8
196
32.7
4.52
39.1
105
26.2
3.31
29.6
216
45.5
3.26
x 3/16
0.188
24.73
7.29
39.4
60.6
151
25.2
4.55
29.9
81.3
20.3
3.34
22.7
165
34.7
3.28
12 x 6 x 5/8
0.625
67.82
19.9
6.00
15.6
338
56.3
4.12
72.9
112
37.3
2.37
44.5
286
75.5
2.82
x 1/2
0.500
55.66
16.4
8.40
20.4
287
47.8
4.18
60.9
96.0
32.0
2.42
37.4
241
62.8
2.86
x 3/8
0.375
42.79
12.6
12.8
28.8
228
38.0
4.25
47.7
77.3
25.8
2.48
29.4
190
48.8
2.89
x 5/16
0.313
36.10
10.6
16.0
35.1
196
32.7
4.30
40.7
66.7
22.2
2.51
25.1
162
41.5
2.91
x 1/4
0.250
29.23
8.59
20.8
44.8
161
26.8
4.33
33.2
55.2
18.4
2.53
20.6
132
33.7
2.93
x 3/16
0.188
22.18
6.54
28.7
60.6
125
20.8
4.37
25.5
42.9
14.3
2.56
15.8
102
25.8
2.95
12 x 4 x 5/8
0.625
59.32
17.4
2.80
15.6
257
42.8
3.84
58.6
42.0
21.0
1.55
25.8
127
47.0
2.49
x 1/2
0.500
48.85
14.4
4.40
20.4
221
36.8
3.92
49.4
37.0
18.5
1.60
22.0
110
39.8
2.52
x 3/8
0.375
37.69
11.1
7.47
28.8
178
29.7
4.00
39.0
30.5
15.2
1.66
17.6
89.0
31.4
2.56
x 5/16
0.313
31.84
9.37
9.58
35.1
153
25.5
4.04
33.4
26.7
13.4
1.69
15.1
77.0
26.9
2.58
x 1/4
0.250
25.82
7.59
12.8
44.8
127
21.2
4.09
27.3
22.3
11.2
1.71
12.5
63.6
22.0
2.60
x 3/16
0.188
19.63
5.8
18.1
60.6
98.4
16.4
4.12
21.0
17.5
8.75
1.74
9.66
49.4
16.9
2.61
12 x 3-1/2 x 3/8
0.375
36.41
10.7
6.13
28.8
165
27.5
3.93
36.8
22.4
12.8
1.45
14.9
68.3
27.0
2.48
x 5/16
0.313
30.78
9.06
7.98
35.1
143
23.8
3.97
31.6
19.7
11.3
1.47
12.8
59.4
23.2
2.49
12 x 3 x 5/16
0.313
29.72
8.75
6.38
35.1
132
22.0
3.88
29.7
13.8
9.20
1.26
10.6
43.7
19.5
2.41
x 1/4
0.250
24.12
7.09
8.80
44.8
109
18.2
3.92
24.4
11.7
7.80
1.28
8.80
36.5
16.1
2.43
x 3/16
0.188
18.35
5.41
12.8
60.6
85
14.2
3.96
18.8
9.30
6.20
1.31
6.86
28.7
12.5
2.45
Shape
h x b x t
Design Wall
Thickness, t
in.
Nominal
Wt
lb/ft
Area, A
in2
b/t
h/t
Axis x - x
Axis Y-Y
Torsion
Surface Area
I
S
r
Z
I
S
r
Z
J
C
in4
in3
in.
in3
in4
in3
in.
in3
in4
in3
ft2/ft
12 x 2 x 5/16
0.313
27.59
8.12
3.19
35.1
111
18.5
3.70
26.1
5.33
5.33
0.810
6.39
18.4
12.2
2.24
x 1/4
0.250
22.42
6.59
4.80
44.8
92.2
15.4
3.74
21.4
4.62
4.62
0.837
5.38
15.9
10.2
2.26
x 3/16
0.188
17.08
5.03
7.44
60.6
72.2
12.0
3.79
16.6
3.77
3.77
0.866
4.25
12.8
8.02
2.28
10 x 8 x 5/8
0.625
67.82
19.9
9.20
12.4
266
53.2
3.66
65.9
187
46.8
3.07
56.4
367
85.5
2.82
x 1/2
0.500
55.66
16.4
12.4
16.4
226
45.2
3.71
55.1
160
40.0
3.12
47.2
306
70.8
2.86
x 3/8
0.375
42.79
12.6
18.1
23.5
180
36.0
3.78
43.1
127
31.8
3.17
37.0
239
54.8
2.89
x 5/16
0.313
36.10
10.6
22.4
28.7
154
30.8
3.81
36.8
110
27.5
3.22
31.6
203
46.5
2.91
x 1/4
0.250
29.23
8.59
28.8
36.8
127
25.4
3.85
30.0
90.2
22.6
3.24
25.8
166
37.7
2.93
x 3/16
0.188
22.18
6.54
39.4
50.0
98.1
19.6
3.87
23.0
69.8
17.4
3.27
19.8
127
28.8
2.95
10 x 6 x 5/8
0.625
59.32
17.4
6.00
12.4
211
42.2
3.48
54.2
93.6
31.2
2.32
37.7
221
62.0
2.49
x 1/2
0.500
48.85
14.4
8.40
16.4
181
36.2
3.55
45.6
80.9
27.0
2.37
31.9
187
51.8
2.52
x 3/8
0.375
37.69
11.1
12.8
23.5
145
29.0
3.61
35.9
65.4
21.8
2.43
25.2
147
40.4
2.56
x 5/16
0.313
31.84
9.37
16.0
28.7
125
25.0
3.65
30.7
56.6
18.9
2.46
21.6
126
34.4
2.58
x 1/4
0.250
25.82
7.59
20.8
36.8
103
20.6
3.68
25.1
46.9
15.6
2.49
17.7
103
28.0
2.60
x 3/16
0.188
19.63
5.78
28.7
50.0
80.0
16.0
3.72
19.3
36.5
12.2
2.51
13.6
79.3
21.4
2.61
10 x 5 x 3/8
0.375
35.13
10.3
10.1
23.5
128
25.6
3.53
32.3
42.9
17.2
2.04
19.9
107
33.2
2.39
x 5/16
0.313
29.72
8.75
12.8
28.7
110
22.0
3.55
27.7
37.3
14.9
2.06
17.0
91.6
28.3
2.41
x 1/4
0.250
24.12
7.09
16.8
36.8
91.2
18.2
3.59
22.7
31.1
12.4
2.09
14.0
75.2
23.1
2.43
x 3/16
0.188
18.35
5.41
23.4
50.0
70.9
14.2
3.62
17.5
24.3
9.72
2.12
10.8
58.1
17.7
2.45
10 x 4 x 5/8
0.625
50.81
14.9
2.80
12.4
156
31.2
3.24
42.5
34.8
17.4
1.53
21.6
100
38.6
2.15
x 1/2
0.500
42.05
12.4
4.40
16.4
136
27.2
3.31
36.1
30.8
15.4
1.58
18.5
86.9
32.8
2.19
x 3/8
0.375
32.58
9.58
7.47
23.5
110
22.0
3.39
28.7
25.5
12.8
1.63
14.9
70.4
26.0
2.23
x 5/16
0.313
27.59
8.12
9.58
28.7
95.6
19.1
3.43
24.6
22.4
11.2
1.66
12.8
60.9
22.2
2.24
x 1/4
0.250
22.42
6.59
12.8
36.8
79.3
15.9
3.47
20.2
18.8
9.40
1.69
10.6
50.4
18.2
2.26
x 3/16
0.188
17.08
5.03
18.1
50.0
61.9
12.4
3.51
15.6
14.8
7.40
1.72
8.22
39.2
14.0
2.28
Shape
h x b x t
Design Wall
Thickness, t
in.
Nominal
Wt
lb/ft
Area, A
in2
b/t
h/t
Axis x - x
Axis Y-Y
Torsion
Surface Area
I
S
r
Z
I
S
r
Z
J
C
in4
in3
in.
in3
in4
in3
in.
in3
in4
in3
ft2/ft
10 x 3-1/2 x 1/2
0.500
40.34
11.9
3.40
16.4
124
24.8
3.23
33.7
22.3
12.7
1.37
15.5
66.2
28.0
2.11
x 3/8
0.375
31.31
9.20
6.13
23.5
102
20.4
3.33
26.9
18.7
10.7
1.43
12.5
54.3
22.4
2.14
x 5/16
0.313
26.53
7.81
7.98
28.7
88.2
17.6
3.36
23.1
16.5
9.43
1.45
10.8
47.3
19.2
2.16
x 1/4
0.250
21.57
6.34
10.8
36.8
73.4
14.7
3.40
19.0
13.9
7.94
1.48
8.98
39.3
15.8
2.18
x 3/16
0.188
16.44
4.84
15.4
50.0
57.4
11.5
3.44
14.7
11.0
6.29
1.51
6.99
30.7
12.2
2.20
10 x 3 x 3/8
0.375
30.03
8.83
4.80
23.5
92.8
18.6
3.24
25.1
13.0
8.67
1.21
10.3
39.8
18.7
2.06
x 5/16
0.313
25.46
7.49
6.38
28.7
80.9
16.2
3.29
21.6
11.5
7.67
1.24
8.93
34.9
16.2
2.08
x 1/4
0.250
20.72
6.09
8.80
36.8
67.4
13.5
3.33
17.8
9.79
6.53
1.27
7.42
29.3
13.3
2.10
x 3/16
0.188
15.80
4.66
12.8
50.0
52.8
10.6
3.37
13.8
7.82
5.21
1.30
5.80
23.0
10.3
2.11
10 x 2 x 3/8
0.375
27.48
8.08
2.13
23.5
75.4
15.1
3.05
21.5
4.87
4.87
0.776
6.05
16.5
11.5
1.89
x 5/16
0.313
23.34
6.87
3.19
28.7
66.2
13.2
3.10
18.6
4.43
4.43
0.803
5.34
14.9
10.1
1.91
x 1/4
0.250
19.02
5.59
4.80
36.8
55.6
11.1
3.15
15.4
3.85
3.85
0.830
4.50
12.8
8.47
1.93
x 3/16
0.188
14.53
4.28
7.44
50.0
43.8
8.8
3.20
11.9
3.15
3.15
0.858
3.57
10.4
6.66
1.95
9 x 7 x 5/8
0.625
59.32
17.4
7.60
10.8
183
40.7
3.24
51.0
123
35.1
2.66
42.8
248
65.8
2.49
x 1/2
0.500
48.85
14.4
10.4
14.4
157
34.9
3.30
42.9
106
30.3
2.71
36.1
209
54.8
2.52
x 3/8
0.375
37.69
11.1
15.5
20.8
126
28.0
3.37
33.8
85.2
24.3
2.77
28.4
164
42.7
2.56
x 5/16
0.313
31.84
9.37
19.2
25.6
108
24.0
3.40
28.9
73.6
21.0
2.80
24.3
140
36.2
2.58
x 1/4
0.250
25.82
7.59
24.8
32.8
89.4
19.9
3.43
23.6
60.8
17.4
2.83
19.9
114
29.5
2.60
x 3/16
0.188
19.63
5.78
34.0
44.7
69.4
15.4
3.47
18.2
47.3
13.5
2.86
15.3
87.9
22.5
2.61
9 x 5 x 5/8
0.625
50.81
14.9
4.40
10.8
139
30.9
3.05
40.5
54.1
21.6
1.91
26.6
135
44.9
2.15
x 1/2
0.500
42.05
12.4
6.40
14.4
121
26.9
3.12
34.4
47.4
19.0
1.96
22.7
115
37.8
2.19
x 3/8
0.375
32.58
9.58
10.1
20.8
97.8
21.7
3.20
27.3
38.9
15.6
2.02
18.1
92.2
29.7
2.23
x 5/16
0.313
27.59
8.12
12.8
25.6
84.7
18.8
3.23
23.4
33.9
13.6
2.04
15.6
79.3
25.4
2.24
x 1/4
0.250
22.42
6.59
16.8
32.8
70.3
15.6
3.27
19.3
28.2
11.3
2.07
12.8
65.2
20.7
2.26
x 3/16
0.188
17.08
5.03
23.4
44.7
54.8
12.2
3.30
14.9
22.1
8.84
2.10
9.93
50.4
15.9
2.28
9 x 3 x 1/2
0.500
35.24
10.4
2.40
14.4
84.5
18.8
2.85
25.9
13.7
9.13
1.15
11.3
41.6
20.8
1.86
x 3/8
0.375
27.48
8.08
4.80
20.8
69.9
15.5
2.94
20.9
11.7
7.80
1.20
9.29
34.9
16.8
1.89
x 5/16
0.313
23.34
6.87
6.38
25.6
61.1
13.6
2.98
18.0
10.4
6.93
1.23
8.09
30.6
14.5
1.91
x 1/4
0.250
19.02
5.59
8.80
32.8
51.1
11.4
3.02
14.9
8.85
5.90
1.26
6.73
25.6
12.0
1.93
x 3/16
0.188
14.53
4.28
12.8
44.7
40.2
8.93
3.06
11.6
7.07
4.71
1.29
5.27
20.2
9.29
1.95
Shape
h x b x t
Design Wall
Thickness, t
in.
Nominal
Wt
lb/ft
Area, A
in2
b/t
h/t
Axis x - x
Axis Y-Y
Torsion
Surface Area
I
S
r
Z
I
S
r
Z
J
C
in4
in3
in.
in3
in4
in3
in.
in3
in4
in3
ft2/ft
8 x 6 x 5/8
0.625
50.81
14.9
6.00
9.20
119
29.8
2.83
38.0
75.5
25.2
2.25
31.0
158
48.6
2.15
x 1/2
0.500
42.05
12.4
8.40
12.4
103
25.8
2.88
32.2
65.7
21.9
2.30
26.4
135
40.8
2.19
x 3/8
0.375
32.58
9.58
12.8
18.1
83.7
20.9
2.96
25.6
53.5
17.8
2.36
21.0
107
32.0
2.23
x 5/16
0.313
27.59
8.12
16.0
22.4
72.5
18.1
2.99
22.0
46.5
15.5
2.39
18.0
91.4
27.2
2.24
x 1/4
0.250
22.42
6.59
20.8
28.8
60.1
15.0
3.02
18.0
38.6
12.9
2.42
14.8
74.9
22.2
2.26
x 3/16
0.188
17.08
5.03
28.7
39.4
46.9
11.7
3.05
13.9
30.2
10.1
2.45
11.4
57.7
17.0
2.28
8 x 4 x 5/8
0.625
42.30
12.4
2.80
9.20
85.2
21.3
2.62
28.8
27.6
13.8
1.49
17.3
73.2
30.2
1.82
x 1/2
0.500
35.24
10.4
4.40
12.4
75.2
18.8
2.69
24.7
24.6
12.3
1.54
15.0
64.1
25.8
1.86
x 3/8
0.375
27.48
8.08
7.47
18.1
61.9
15.5
2.77
19.9
20.6
10.3
1.60
12.2
52.2
20.5
1.89
x 5/16
0.313
23.34
6.87
9.58
22.4
54.0
13.5
2.80
17.1
18.1
9.05
1.62
10.5
45.2
17.6
1.91
x 1/4
0.250
19.02
5.59
12.8
28.8
45.1
11.3
2.84
14.1
15.3
7.65
1.65
8.72
37.5
14.5
1.93
x 3/16
0.188
14.53
4.28
18.1
39.4
35.4
8.85
2.88
11.0
12.1
6.05
1.68
6.79
29.2
11.2
1.95
8 x 3 x 1/2
0.500
31.84
9.36
2.40
12.4
61.1
15.3
2.55
21.0
12.1
8.07
1.14
10.1
35.7
18.3
1.69
x 3/8
0.375
24.93
7.33
4.80
18.1
51.0
12.8
2.64
17.0
10.4
6.93
1.19
8.31
29.9
14.8
1.73
x 5/16
0.313
21.21
6.24
6.38
22.4
44.8
11.2
2.68
14.7
9.26
6.17
1.22
7.25
26.3
12.8
1.74
x 1/4
0.250
17.32
5.09
8.80
28.8
37.6
9.40
2.72
12.2
7.90
5.27
1.25
6.05
22.1
10.6
1.76
x 3/16
0.188
13.25
3.90
12.8
39.4
29.7
7.42
2.76
9.51
6.33
4.22
1.27
4.74
17.4
8.23
1.78
8 x 2 x 3/8
0.375
22.37
6.58
2.13
18.1
40.1
10.0
2.47
14.2
3.86
3.86
0.766
4.83
12.6
9.09
1.56
x 5/16
0.313
19.08
5.62
3.19
22.4
35.5
8.88
2.51
12.3
3.53
3.53
0.793
4.28
11.4
8.00
1.58
x 1/4
0.250
15.62
4.59
4.80
28.8
30.1
7.52
2.56
10.3
3.08
3.08
0.819
3.63
9.84
6.72
1.60
x 3/16
0.188
11.97
3.53
7.44
39.4
23.9
5.98
2.60
8.04
2.53
2.53
0.847
2.89
7.95
5.30
1.61
7 x 5 x 1/2
0.500
35.24
10.4
6.40
10.4
63.5
18.1
2.47
23.1
37.3
14.9
1.89
18.2
79.9
28.8
1.86
x 3/8
0.375
27.48
8.08
10.1
15.5
52.2
14.9
2.54
18.5
30.8
12.3
1.95
14.6
64.2
22.8
1.89
x 5/16
0.313
23.34
6.87
12.8
19.2
45.5
13.0
2.57
16.0
27.0
10.8
1.98
12.6
55.4
19.5
1.91
x 1/4
0.250
19.02
5.59
16.8
24.8
38.0
10.9
2.61
13.2
22.6
9.04
2.01
10.4
45.6
16.0
1.93
x 3/16
0.188
14.53
4.28
23.4
34.0
29.8
8.51
2.64
10.2
17.8
7.12
2.04
8.12
35.3
12.3
1.95
Shape
h x b x t
Design Wall
Thickness, t
in.
Nominal
Wt
lb/ft
Area, A
in2
b/t
h/t
Axis x - x
Axis Y-Y
Torsion
Surface Area
I
S
r
Z
I
S
r
Z
J
C
in4
in3
in.
in3
in4
in3
in.
in3
in4
in3
ft2/ft
7 x 4 x 1/2
0.500
31.84
9.36
4.40
10.4
52.9
15.1
2.38
19.8
21.6
10.8
1.52
13.3
53.0
22.3
1.69
x 3/8
0.375
24.93
7.33
7.47
15.5
44.0
12.6
2.45
16.0
18.1
9.05
1.57
10.8
43.3
17.8
1.73
x 5/16
0.313
21.21
6.24
9.58
19.2
38.5
11.0
2.48
13.9
16.0
8.00
1.60
9.37
37.6
15.3
1.74
x 1/4
0.250
17.32
5.09
12.8
24.8
32.3
9.23
2.52
11.5
13.5
6.75
1.63
7.78
31.2
12.6
1.76
x 3/16
0.188
13.25
3.90
18.1
34.0
25.5
7.29
2.56
8.93
10.7
5.35
1.66
6.07
24.3
9.74
1.78
7 x 3 x 1/2
0.500
28.43
8.36
2.40
10.4
42.3
12.1
2.25
16.6
10.5
7.00
1.12
8.84
29.8
15.8
1.52
x 3/8
0.375
22.37
6.58
4.80
15.5
35.7
10.2
2.33
13.5
9.10
6.07
1.18
7.32
25.1
12.8
1.56
x 5/16
0.313
19.08
5.62
6.38
19.2
31.5
9.00
2.37
11.8
8.13
5.42
1.20
6.41
22.1
11.1
1.58
x 1/4
0.250
15.62
4.59
8.80
24.8
26.6
7.60
2.41
9.8
6.95
4.63
1.23
5.36
18.5
9.22
1.60
x 3/16
0.188
11.97
3.53
12.8
34.0
21.1
6.03
2.44
7.65
5.58
3.72
1.26
4.21
14.6
7.18
1.61
7 x 2 x 1/4
0.250
13.91
4.09
4.80
24.8
20.9
5.97
2.26
8.10
2.70
2.70
0.812
3.19
8.36
5.85
1.43
3 x 16
0.188
10.70
3.15
7.44
34.0
16.7
4.77
2.30
6.37
2.22
2.22
0.840
2.54
6.76
4.62
1.45
6 x 5 x 1/2
0.500
31.84
9.36
6.40
8.40
43.0
14.3
2.14
18.1
32.2
12.9
1.85
16.0
62.9
24.3
1.69
x 3/8
0.375
24.93
7.33
10.1
12.8
35.7
11.9
2.21
14.7
26.8
10.7
1.91
12.9
50.9
19.3
1.73
x 5/16
0.313
21.21
6.24
12.8
16.0
31.3
10.4
2.24
12.7
23.5
9.40
1.94
11.2
44.0
16.6
1.74
x 1/4
0.250
17.32
5.09
16.8
20.8
26.2
8.73
2.27
10.5
19.8
7.92
1.97
9.26
36.3
13.6
1.76
x 3/16
0.188
13.25
3.90
23.4
28.7
20.7
6.90
2.30
8.17
15.6
6.24
2.00
7.21
28.2
10.5
1.78
6 x 4 x 1/2
0.500
28.43
8.36
4.40
8.40
35.4
11.8
2.06
15.4
18.5
9.25
1.49
11.5
42.1
18.8
1.52
x 3/8
0.375
22.37
6.58
7.47
12.8
29.7
9.9
2.12
12.5
15.7
7.85
1.54
9.44
34.6
15.1
1.56
x 5/16
0.313
19.08
5.62
9.58
16.0
26.2
8.73
2.16
10.9
13.9
6.95
1.57
8.22
30.1
13.0
1.58
x 1/4
0.250
15.62
4.59
12.8
20.8
22.1
7.37
2.19
9.06
11.7
5.85
1.60
6.84
25.0
10.7
1.60
x 3/16
0.188
11.97
3.53
18.1
28.7
17.5
5.83
2.23
7.07
9.34
4.67
1.63
5.36
19.6
8.30
1.61
6 x 3 x 1/2
0.500
25.03
7.36
2.40
8.40
27.8
9.27
1.94
12.6
8.96
5.97
1.10
7.59
23.9
13.3
1.36
x 3/8
0.375
19.82
5.83
4.80
12.8
23.8
7.93
2.02
10.4
7.80
5.20
1.16
6.34
20.3
10.9
1.39
x 5/16
0.313
16.96
4.99
6.38
16.0
21.1
7.03
2.06
9.12
6.99
4.66
1.18
5.56
17.9
9.45
1.41
x 1/4
0.250
13.91
4.09
8.80
20.8
17.9
5.97
2.09
7.62
6.00
4.00
1.21
4.67
15.1
7.85
1.43
x 3/16
0.188
10.70
3.15
12.8
28.7
14.3
4.77
2.13
5.98
4.84
3.23
1.24
3.69
11.9
6.12
1.45
Shape
h x b x t
Design Wall
Thickness, t
in.
Nominal
Wt
lb/ft
Area, A
in2
b/t
h/t
Axis x - x
Axis Y-Y
Torsion
Surface Area
I
S
r
Z
I
S
r
Z
J
C
in4
in3
in.
in3
in4
in3
in.
in3
in4
in3
ft2/ft
6 x 2 x 3/8
0.375
17.27
5.08
2.13
12.8
17.8
5.93
1.87
8.33
2.85
2.85
0.749
3.61
8.72
6.65
1.23
x 5/16
0.313
14.83
4.36
3.19
16.0
16.1
5.37
1.92
7.34
2.62
2.62
0.775
3.23
7.94
5.89
1.24
x 1/4
0.250
12.21
3.59
4.80
20.8
13.8
4.60
1.96
6.18
2.31
2.31
0.802
2.75
6.88
4.97
1.26
x 3/16
0.188
9.42
2.78
7.44
28.7
11.1
3.70
2.00
4.89
1.91
1.91
0.829
2.20
5.58
3.93
1.28
5 x 4 x 1/2
0.500
25.03
7.36
4.40
6.40
22.0
8.80
1.73
11.5
15.4
7.70
1.45
9.77
31.7
15.3
1.36
x 3/8
0.375
19.82
5.83
7.47
10.1
18.8
7.52
1.80
9.44
13.2
6.60
1.50
8.08
26.3
12.4
1.39
x 5/16
0.313
16.96
4.99
9.58
12.8
16.6
6.64
1.82
8.25
11.7
5.85
1.53
7.06
22.9
10.7
1.41
x 1/4
0.250
13.91
4.09
12.8
16.8
14.1
5.64
1.86
6.89
10.0
5.00
1.56
5.90
19.1
8.85
1.43
x 3/16
0.188
10.70
3.15
18.1
23.4
11.3
4.52
1.89
5.40
7.98
3.99
1.59
4.64
15.0
6.87
1.45
5 x 3 x 1/2
0.500
21.63
6.36
2.40
6.40
16.9
6.76
1.63
9.20
7.37
4.91
1.08
6.34
18.2
10.8
1.19
x 3/8
0.375
17.27
5.08
4.80
10.1
14.7
5.88
1.70
7.71
6.50
4.33
1.13
5.35
15.6
8.90
1.23
x 5/16
0.313
14.83
4.36
6.38
12.8
13.2
5.28
1.74
6.78
5.86
3.91
1.16
4.72
13.8
7.77
1.24
x 1/4
0.250
12.21
3.59
8.80
16.8
11.3
4.52
1.77
5.70
5.05
3.37
1.19
3.98
11.7
6.47
1.26
x 3/16
0.188
9.42
2.78
12.8
23.4
9.08
3.63
1.81
4.50
4.09
2.73
1.21
3.16
9.23
5.06
1.28
5 x 2-1/2 x 1/4
0.250
11.36
3.34
6.80
16.8
9.9
3.96
1.72
5.11
3.28
2.62
0.991
3.12
8.36
5.28
1.18
x 3/16
0.188
8.78
2.59
10.1
23.4
7.99
3.20
1.76
4.05
2.69
2.15
1.02
2.49
6.68
4.16
1.20
5 x 2 x 3/8
0.375
14.72
4.33
2.13
10.1
10.72
4.29
1.57
5.98
2.35
2.35
0.737
3.00
6.82
5.43
1.06
x 5/16
0.313
12.70
3.74
3.19
12.8
9.76
3.90
1.62
5.31
2.17
2.17
0.762
2.70
6.24
4.83
1.08
x 1/4
0.250
10.51
3.09
4.80
16.8
8.48
3.39
1.66
4.51
1.93
1.93
0.790
2.32
5.43
4.10
1.10
x 3/16
0.188
8.15
2.40
7.44
23.4
6.90
2.76
1.70
3.59
1.60
1.60
0.816
1.86
4.41
3.25
1.11
4 x 3 x 3/8
0.375
14.72
4.33
4.80
7.47
8.23
4.12
1.38
5.36
5.19
3.46
1.09
4.37
11.1
6.93
1.06
x 5/16
0.313
12.70
3.74
6.38
9.58
7.46
3.73
1.41
4.75
4.72
3.15
1.12
3.88
9.90
6.08
1.08
x 1/4
0.250
10.51
3.09
8.80
12.8
6.46
3.23
1.45
4.03
4.11
2.74
1.15
3.30
8.41
5.10
1.10
x 3/16
0.188
8.15
2.40
12.8
18.1
5.24
2.62
1.48
3.21
3.35
2.23
1.18
2.63
6.68
4.00
1.11
4 x 2-1/2 x 3/8
0.375
13.44
3.95
3.47
7.47
7.00
3.50
1.33
4.68
3.27
2.62
0.910
3.33
7.86
5.57
0.976
x 5/16
0.313
11.64
3.42
4.79
9.58
6.39
3.20
1.37
4.18
3.01
2.41
0.938
2.99
7.09
4.93
0.994
x 1/4
0.250
9.66
2.84
6.80
12.8
5.58
2.79
1.40
3.56
2.65
2.12
0.966
2.56
6.09
4.16
1.01
x 3/16
0.188
7.51
2.21
10.1
18.1
4.56
2.28
1.44
2.85
2.18
1.74
0.993
2.05
4.89
3.29
1.03
Shape
h x b x t
Design Wall
Thickness, t
in.
Nominal
Wt
lb/ft
Area, A
in2
b/t
h/t
Axis x - x
Axis Y-Y
Torsion
Surface Area
I
S
r
Z
I
S
r
Z
J
C
in4
in3
in.
in3
in4
in3
in.
in3
in4
in3
ft2/ft
4 x 2 x 3/8
0.375
12.17
3.58
2.13
7.47
5.76
2.88
1.27
4.00
1.84
1.84
0.717
2.39
4.97
4.21
0.893
x 5/16
0.313
10.58
3.11
3.19
9.58
5.33
2.66
1.31
3.60
1.72
1.72
0.744
2.17
4.58
3.78
0.910
x 1/4
0.250
8.81
2.59
4.80
12.8
4.70
2.35
1.35
3.09
1.54
1.54
0.771
1.88
4.01
3.22
0.928
x 3/16
0.188
6.87
2.02
7.44
18.1
3.88
1.94
1.39
2.49
1.29
1.29
0.799
1.52
3.27
2.57
0.946
3-1/2 x 2-1/2 x 3/8
0.375
12.17
3.58
3.47
6.13
4.90
2.80
1.17
3.74
2.84
2.27
0.891
2.94
6.38
4.78
0.893
x 5/16
0.313
10.58
3.11
4.79
7.98
4.51
2.58
1.20
3.36
2.63
2.10
0.920
2.64
5.79
4.24
0.910
x 1/4
0.250
8.81
2.59
6.80
10.8
3.97
2.27
1.24
2.88
2.33
1.86
0.948
2.28
4.99
3.60
0.928
x 3/16
0.188
6.87
2.02
10.1
15.4
3.27
1.87
1.27
2.32
1.93
1.54
0.977
1.83
4.02
2.85
0.946
3-1/2 x 2 x 1/4
0.250
7.96
2.34
4.80
10.8
3.31
1.89
1.19
2.48
1.35
1.35
0.760
1.66
3.31
2.78
0.845
x 3/16
0.188
6.23
1.84
7.44
15.4
2.75
1.57
1.22
2.01
1.13
1.13
0.784
1.35
2.71
2.23
0.863
3-1/2 x 1-1/2 x 1/4
0.250
7.11
2.09
2.80
10.8
2.65
1.51
1.13
2.07
0.659
0.879
0.562
1.11
1.86
1.97
0.762
x 3/16
0.188
5.59
1.65
4.78
15.4
2.24
1.28
1.17
1.70
0.569
0.759
0.587
0.917
1.57
1.61
0.780
3 x 2-1/2 x 5/16
0.313
9.51
2.80
4.79
6.38
3.02
2.01
1.04
2.62
2.26
1.81
0.898
2.30
4.53
3.56
0.827
x 1/4
0.250
7.96
2.34
6.80
8.80
2.68
1.79
1.07
2.27
2.01
1.61
0.927
1.99
3.93
3.03
0.845
x 3/16
0.188
6.23
1.84
10.1
12.8
2.23
1.49
1.10
1.84
1.68
1.34
0.956
1.62
3.19
2.42
0.863
3 x 2 x 5/16
0.313
8.45
2.49
3.19
6.38
2.45
1.63
0.992
2.20
1.27
1.27
0.714
1.64
2.97
2.72
0.744
x 1/4
0.250
7.11
2.09
4.80
8.80
2.21
1.47
1.03
1.92
1.15
1.15
0.742
1.44
2.63
2.35
0.762
x 3/16
0.188
5.59
1.65
7.44
12.8
1.86
1.24
1.06
1.57
0.980
0.980
0.771
1.18
2.17
1.89
0.780
3 x 1-1/2 x 1/4
0.250
6.26
1.84
2.80
8.80
1.74
1.16
0.972
1.58
0.560
0.747
0.552
0.949
1.50
1.66
0.678
x 3/16
0.188
4.96
1.46
4.78
12.8
1.49
0.993
1.01
1.31
0.488
0.651
0.578
0.794
1.27
1.36
0.696
3 x 1 x 3/16
0.188
4.32
1.27
2.12
12.8
1.12
0.747
0.939
1.04
0.178
0.356
0.374
0.452
0.546
0.833
0.613
2-1/2 x 2 x 1/4
0.250
6.26
1.84
4.80
6.80
1.38
1.10
0.866
1.43
0.962
0.962
0.723
1.22
1.98
1.91
0.678
x 3/16
0.188
4.96
1.46
7.44
10.1
1.17
0.936
0.895
1.18
0.825
0.825
0.752
1.01
1.64
1.55
0.696
2-1/2 x 1-1/2 x 1/4
0.250
5.41
1.59
2.80
6.80
1.06
0.848
0.816
1.15
0.461
0.615
0.538
0.793
1.14
1.35
0.595
2-1/2 x 1-1/2 x 3/16
0.188
4.32
1.27
4.78
10.1
0.923
0.738
0.853
0.965
0.407
0.543
0.566
0.670
0.977
1.11
0.613
2-1/2 x 1 x 3/16
0.188
3.68
1.08
2.12
10.1
0.671
0.537
0.788
0.748
0.147
0.294
0.369
0.376
0.427
0.680
0.530
2-1/4 x 2 x 3/16
0.188
4.64
1.37
7.44
8.77
0.901
0.801
0.811
1.01
0.748
0.748
0.739
0.927
1.39
1.38
0.655
2 x 1-1/2 x 3/16
0.188
3.68
1.08
4.78
7.44
0.515
0.515
0.691
0.671
0.325
0.433
0.549
0.547
0.696
0.868
0.530
2 x 1 x 3/16
0.188
3.04
0.896
2.12
7.44
0.360
0.360
0.634
0.501
0.115
0.230
0.358
0.300
0.311
0.528
0.446

 

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