Round Structural Tube Table Chart Per. ASTM 1085
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Round Structural Tube Per. ASTM 1085, HSS Hollow Structural Section Round Structural Tube table chart. This specification covers cold-formed welded carbon steel hollow structural sections (HSS) for welded or bolted construction. These shapes are utilized in but not limited to the following applications: buildings, bridges, towers, cranes, sign supports and poles, off-shore production and drilling platforms, roll-over protective structures (ROPS), falling object protective structures (FOPS), and amusement rides.
Where:
D = Outside Diameter
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
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
Round Hollow structural sections (HSS) Table Chart per ASTM 1085
Shape D x t |
Wall Thickness, t in. |
Nominal Wt lb/ft |
Area, A in2 |
D/t |
I |
S |
r |
Z |
Torsion |
|
J |
C |
|||||||||
in4 |
in3 |
in. |
in3 |
in4 |
in3 |
|||||
20 x 0.500 |
0.500 |
104.23 |
30.6 |
40.0 |
1460 |
146 |
6.90 |
190 |
2910 |
291 |
x 0.375 |
0.375 |
78.67 |
23.1 |
53.3 |
1110 |
111 |
6.94 |
144 |
2230 |
223 |
18 x 0.500 |
0.500 |
93.54 |
27.5 |
36.0 |
1050 |
117 |
6.19 |
153 |
2110 |
234 |
x 0.375 |
0.375 |
70.66 |
20.8 |
48.0 |
807 |
89.6 |
6.23 |
117 |
1610 |
179 |
16 x 0.625 |
0.625 |
102.73 |
30.2 |
25.6 |
894 |
112 |
5.44 |
148 |
1790 |
223 |
x 0.500 |
0.500 |
82.85 |
24.3 |
32.0 |
732 |
91.5 |
5.48 |
120 |
1460 |
183 |
x 0.438 |
0.438 |
72.87 |
21.4 |
36.5 |
649 |
81.1 |
5.50 |
106 |
1300 |
162 |
x 0.375 |
0.375 |
62.64 |
18.4 |
42.7 |
562 |
70.3 |
5.53 |
91.6 |
1120 |
140 |
x 0.312 |
0.312 |
52.32 |
15.4 |
51.3 |
473 |
59.2 |
5.55 |
76.8 |
946 |
118 |
x 0.250 |
0.250 |
42.09 |
12.4 |
64.0 |
384 |
48.0 |
5.57 |
62.0 |
767 |
95.9 |
14 x 0.625 |
0.625 |
89.36 |
26.3 |
22.4 |
589 |
84.1 |
4.73 |
112 |
1180 |
168 |
x 0.500 |
0.500 |
72.16 |
21.2 |
28.0 |
484 |
69.1 |
4.78 |
91.2 |
968 |
138 |
x 0.375 |
0.375 |
54.62 |
16.1 |
37.3 |
373 |
53.3 |
4.82 |
69.6 |
746 |
106 |
x 0.312 |
0.312 |
45.65 |
13.4 |
44.9 |
314 |
44.9 |
4.84 |
58.5 |
629 |
89.7 |
x 0.250 |
0.250 |
36.75 |
10.8 |
56.0 |
255 |
36.5 |
4.86 |
47.3 |
511 |
72.9 |
12.75 x 0.500 |
0.500 |
65.48 |
19.2 |
25.5 |
362 |
56.7 |
4.33 |
75.1 |
723 |
113 |
x 0.375 |
0.375 |
49.61 |
14.6 |
34.0 |
279 |
43.8 |
4.38 |
57.4 |
559 |
87.5 |
x 0.250 |
0.250 |
33.41 |
9.82 |
51.0 |
192 |
30.1 |
4.42 |
39.1 |
384 |
60.1 |
10.75 x 0.500 |
0.500 |
54.79 |
16.1 |
21.5 |
212 |
39.4 |
3.63 |
52.6 |
424 |
78.5 |
x 0.375 |
0.375 |
41.59 |
12.2 |
28.7 |
165 |
30.6 |
3.67 |
40.4 |
329 |
61.1 |
x 0.250 |
0.250 |
28.06 |
8.25 |
43.0 |
114 |
21.2 |
3.71 |
27.6 |
227 |
42.3 |
10 x 0.625 |
0.625 |
62.64 |
18.4 |
16.0 |
203 |
40.6 |
3.32 |
55.0 |
406 |
80.6 |
x 0.500 |
0.500 |
50.78 |
14.9 |
20.0 |
169 |
33.8 |
3.36 |
45.2 |
338 |
67.2 |
x 0.375 |
0.375 |
38.58 |
11.3 |
26.7 |
132 |
26.3 |
3.41 |
34.8 |
263 |
52.5 |
x 0.312 |
0.312 |
32.31 |
9.50 |
32.1 |
112 |
22.3 |
3.43 |
29.3 |
223 |
44.5 |
x 0.250 |
0.250 |
26.06 |
7.66 |
40.0 |
91.1 |
18.2 |
3.45 |
23.8 |
182 |
36.4 |
x 0.188 |
0.188 |
19.72 |
5.80 |
53.2 |
69.8 |
14.0 |
3.47 |
18.1 |
140 |
27.9 |
Shape
D x t |
Wall
Thickness, t in. |
Nominal Wt lb/ft |
Area, A in2 |
D/t
|
I |
S |
r |
Z |
Torsion |
|
J |
C |
|||||||||
in4 |
in3 |
in. |
in3 |
in4 |
in3 |
|||||
9.625 x 0.500 |
0.500 |
48.77 |
14.3 |
19.2 |
150 |
31.1 |
3.23 |
41.7 |
299 |
61.9 |
x 0.375 |
0.375 |
37.08 |
10.9 |
25.7 |
117 |
24.3 |
3.27 |
32.1 |
233 |
48.4 |
x 0.312 |
0.312 |
31.06 |
9.13 |
30.8 |
99.1 |
20.6 |
3.29 |
27.1 |
198 |
41.1 |
x 0.250 |
0.250 |
25.06 |
7.36 |
38.5 |
81.0 |
16.8 |
3.32 |
22.0 |
162 |
33.6 |
x 0.188 |
0.188 |
18.97 |
5.57 |
51.2 |
62.1 |
12.9 |
3.34 |
16.7 |
124 |
25.8 |
8.625 x 0.625 |
0.625 |
53.45 |
15.7 |
13.8 |
126 |
29.3 |
2.84 |
40.1 |
253 |
58.0 |
x 0.500 |
0.500 |
43.43 |
12.8 |
17.2 |
106 |
24.5 |
2.88 |
33.0 |
211 |
48.7 |
x 0.375 |
0.375 |
33.07 |
9.72 |
23.0 |
82.9 |
19.2 |
2.92 |
25.5 |
166 |
38.3 |
x 0.322 |
0.322 |
28.58 |
8.40 |
26.8 |
72.5 |
16.8 |
2.94 |
22.2 |
145 |
33.5 |
x 0.250 |
0.250 |
22.38 |
6.58 |
34.5 |
57.7 |
13.4 |
2.96 |
17.5 |
115 |
26.7 |
x 0.188 |
0.188 |
16.96 |
4.98 |
45.9 |
44.4 |
10.3 |
2.98 |
13.4 |
88.7 |
20.6 |
7.625 x 0.375 |
0.375 |
29.06 |
8.54 |
20.3 |
56.3 |
14.8 |
2.57 |
19.7 |
113 |
29.4 |
0.328 |
0.328 |
25.59 |
7.52 |
23.2 |
50.1 |
13.2 |
2.58 |
17.5 |
100 |
26.2 |
7.5 x 0.500 |
0.500 |
37.42 |
11.0 |
15.0 |
67.7 |
18.1 |
2.48 |
24.5 |
135 |
35.8 |
x 0.375 |
0.375 |
28.56 |
8.39 |
20.0 |
53.4 |
14.2 |
2.52 |
19.1 |
107 |
28.4 |
x 0.312 |
0.312 |
23.97 |
7.05 |
24.0 |
45.6 |
12.2 |
2.54 |
16.1 |
91.2 |
24.2 |
x 0.250 |
0.250 |
19.38 |
5.69 |
30.0 |
37.5 |
9.99 |
2.56 |
13.1 |
74.9 |
19.9 |
x 0.188 |
0.188 |
14.70 |
4.32 |
39.9 |
28.9 |
7.70 |
2.59 |
10.1 |
57.8 |
15.4 |
7 x 0.500 |
0.500 |
34.74 |
10.2 |
14.0 |
54.2 |
15.5 |
2.30 |
21.2 |
108 |
30.7 |
x 0.375 |
0.375 |
26.56 |
7.80 |
18.7 |
43.0 |
12.3 |
2.35 |
16.5 |
85.9 |
24.4 |
x 0.312 |
0.312 |
22.31 |
6.56 |
22.4 |
36.7 |
10.5 |
2.37 |
14.0 |
73.5 |
20.9 |
x 0.250 |
0.250 |
18.04 |
5.30 |
28.0 |
30.2 |
8.64 |
2.39 |
11.4 |
60.5 |
17.2 |
x 0.188 |
0.188 |
13.69 |
4.02 |
37.2 |
23.4 |
6.67 |
2.41 |
8.73 |
46.7 |
13.3 |
6.875 x 0.500 |
0.500 |
34.07 |
10.0 |
13.8 |
51.2 |
14.9 |
2.26 |
20.4 |
102 |
29.5 |
x 0.375 |
0.375 |
26.06 |
7.66 |
18.3 |
40.6 |
11.8 |
2.30 |
15.9 |
81.2 |
23.5 |
x 0.312 |
0.312 |
21.89 |
6.43 |
22.0 |
34.7 |
10.1 |
2.32 |
13.4 |
69.4 |
20.1 |
x 0.250 |
0.250 |
17.71 |
5.20 |
27.5 |
28.6 |
8.32 |
2.34 |
11.0 |
57.2 |
16.6 |
x 0.188 |
0.188 |
13.44 |
3.95 |
36.6 |
22.1 |
6.43 |
2.37 |
8.41 |
44.2 |
12.8 |
Shape
D x t |
Wall
Thickness, t in. |
Nominal Wt lb/ft |
Area, A in2 |
D/t
|
I |
S |
r |
Z |
Torsion |
|
J |
C |
|||||||||
in4 |
in3 |
in. |
in3 |
in4 |
in3 |
|||||
6.625 x 0.500 |
0.500 |
32.74 |
9.62 |
13.2 |
45.4 |
13.7 |
2.17 |
18.8 |
90.8 |
27.1 |
x 0.432 |
0.432 |
28.60 |
8.40 |
15.3 |
40.5 |
12.2 |
2.19 |
16.6 |
81.0 |
24.2 |
x 0.375 |
0.375 |
25.06 |
7.36 |
17.7 |
36.1 |
10.9 |
2.21 |
14.7 |
72.2 |
21.6 |
x 0.312 |
0.312 |
21.06 |
6.19 |
21.2 |
30.9 |
9.33 |
2.23 |
12.4 |
61.8 |
18.6 |
x 0.280 |
0.280 |
18.99 |
5.58 |
23.7 |
28.1 |
8.50 |
2.25 |
11.3 |
56.3 |
16.9 |
x 0.250 |
0.250 |
17.04 |
5.01 |
26.5 |
25.5 |
7.69 |
2.26 |
10.2 |
50.9 |
15.3 |
x 0.188 |
0.188 |
12.94 |
3.80 |
35.2 |
19.7 |
5.95 |
2.28 |
7.79 |
39.4 |
11.9 |
6 x 0.500 |
0.500 |
29.40 |
8.64 |
12.0 |
32.9 |
11.0 |
1.95 |
15.2 |
65.9 |
21.6 |
x 0.375 |
0.375 |
22.55 |
6.63 |
16.0 |
26.3 |
8.78 |
1.99 |
11.9 |
52.7 |
17.4 |
x 0.312 |
0.312 |
18.97 |
5.58 |
19.2 |
22.6 |
7.54 |
2.01 |
10.1 |
45.2 |
15.0 |
x 0.280 |
0.280 |
17.12 |
5.03 |
21.4 |
20.6 |
6.88 |
2.02 |
9.17 |
41.3 |
13.7 |
x 0.250 |
0.250 |
15.37 |
4.52 |
24.0 |
18.7 |
6.23 |
2.03 |
8.27 |
37.4 |
12.4 |
x 0.188 |
0.188 |
11.68 |
3.43 |
31.9 |
14.5 |
4.84 |
2.06 |
6.35 |
29.0 |
9.66 |
5.563 x 0.500 |
0.500 |
27.06 |
7.95 |
11.1 |
25.7 |
9.25 |
1.80 |
12.9 |
51.5 |
18.2 |
x 0.375 |
0.375 |
20.80 |
6.11 |
14.8 |
20.7 |
7.43 |
1.84 |
10.1 |
41.3 |
14.7 |
x 0.258 |
0.258 |
14.63 |
4.30 |
21.6 |
15.2 |
5.45 |
1.88 |
7.27 |
30.3 |
10.9 |
x 0.188 |
0.188 |
10.80 |
3.17 |
29.6 |
11.5 |
4.13 |
1.90 |
5.43 |
23.0 |
8.24 |
5.5 x 0.500 |
0.500 |
26.73 |
7.85 |
11.0 |
24.8 |
9.01 |
1.78 |
12.5 |
49.6 |
17.7 |
x 0.375 |
0.375 |
20.55 |
6.04 |
14.7 |
19.9 |
7.25 |
1.82 |
9.87 |
39.9 |
14.4 |
x 0.258 |
0.258 |
14.46 |
4.25 |
21.3 |
14.6 |
5.32 |
1.86 |
7.10 |
29.3 |
10.6 |
5 x 0.500 |
0.500 |
24.05 |
7.07 |
10.0 |
18.1 |
7.25 |
1.60 |
10.2 |
36.2 |
14.2 |
x 0.375 |
0.375 |
18.54 |
5.45 |
13.3 |
14.7 |
5.87 |
1.64 |
8.04 |
29.3 |
11.6 |
x 0.312 |
0.312 |
15.64 |
4.6 |
16.0 |
12.7 |
5.07 |
1.66 |
6.87 |
25.4 |
10.1 |
x 0.258 |
0.258 |
13.08 |
3.84 |
19.4 |
10.8 |
4.33 |
1.68 |
5.81 |
21.7 |
8.62 |
x 0.250 |
0.250 |
12.69 |
3.73 |
20.0 |
10.6 |
4.22 |
1.68 |
5.65 |
21.1 |
8.40 |
x 0.188 |
0.188 |
9.67 |
2.84 |
26.6 |
8.24 |
3.30 |
1.70 |
4.36 |
16.5 |
6.57 |
Shape
D x t |
Wall Thickness, t in. |
Nominal Wt lb/ft |
Area, A in2 |
D/t
|
I |
S |
r |
Z |
Torsion |
|
J |
C |
|||||||||
in.4 |
in.3 |
in. |
in.3 |
in.4 |
in.3 |
|||||
4.5 x 0.375 |
0.375 |
16.54 |
4.86 |
12.0 |
10.4 |
4.63 |
1.46 |
6.40 |
20.8 |
9.13 |
x 0.337 |
0.337 |
15.00 |
4.41 |
13.4 |
9.61 |
4.27 |
1.48 |
5.85 |
19.2 |
8.45 |
x 0.237 |
0.237 |
10.80 |
3.17 |
19.0 |
7.23 |
3.21 |
1.51 |
4.31 |
14.5 |
6.39 |
x 0.188 |
0.188 |
8.67 |
2.55 |
23.9 |
5.93 |
2.64 |
1.53 |
3.50 |
11.9 |
5.25 |
4 x 0.313 |
0.313 |
12.34 |
3.63 |
12.8 |
6.21 |
3.10 |
1.31 |
4.27 |
12.4 |
6.13 |
x 0.250 |
0.250 |
10.02 |
2.95 |
16.0 |
5.20 |
2.60 |
1.33 |
3.52 |
10.4 |
5.16 |
x 0.237 |
0.237 |
9.53 |
2.8 |
16.9 |
4.98 |
2.49 |
1.33 |
3.36 |
10.0 |
4.94 |
x 0.226 |
0.226 |
9.12 |
2.68 |
17.7 |
4.79 |
2.39 |
1.34 |
3.22 |
9.58 |
4.76 |
x 0.220 |
0.220 |
8.89 |
2.61 |
18.2 |
4.68 |
2.34 |
1.34 |
3.15 |
9.36 |
4.65 |
x 0.188 |
0.188 |
7.66 |
2.25 |
21.3 |
4.10 |
2.05 |
1.35 |
2.73 |
8.20 |
4.08 |
3.5 x 0.313 |
0.313 |
10.66 |
3.13 |
11.2 |
4.02 |
2.30 |
1.13 |
3.19 |
8.03 |
4.52 |
x 0.300 |
0.300 |
10.26 |
3.02 |
11.7 |
3.89 |
2.23 |
1.14 |
3.08 |
7.79 |
4.38 |
x 0.250 |
0.250 |
8.69 |
2.55 |
14.0 |
3.39 |
1.94 |
1.15 |
2.65 |
6.78 |
3.83 |
x 0.216 |
0.216 |
7.58 |
2.23 |
16.2 |
3.02 |
1.72 |
1.16 |
2.33 |
6.03 |
3.42 |
x 0.203 |
0.203 |
7.15 |
2.10 |
17.2 |
2.87 |
1.64 |
1.17 |
2.21 |
5.74 |
3.26 |
x 0.188 |
0.188 |
6.66 |
1.96 |
18.6 |
2.69 |
1.54 |
1.17 |
2.06 |
5.38 |
3.06 |
3 x 0.250 |
0.250 |
7.35 |
2.16 |
12.0 |
2.06 |
1.37 |
0.976 |
1.90 |
4.12 |
2.71 |
x 0.216 |
0.216 |
6.43 |
1.89 |
13.9 |
1.84 |
1.23 |
0.987 |
1.68 |
3.68 |
2.43 |
x 0.203 |
0.203 |
6.07 |
1.78 |
14.8 |
1.75 |
1.17 |
0.991 |
1.59 |
3.51 |
2.32 |
x 0.188 |
0.188 |
5.65 |
1.66 |
16.0 |
1.65 |
1.10 |
1.00 |
1.49 |
3.30 |
2.18 |
x 0.152 |
0.152 |
4.63 |
1.36 |
19.7 |
1.38 |
0.922 |
1.01 |
1.23 |
2.77 |
1.83 |
2.875 x 0.250 |
0.250 |
7.02 |
2.06 |
11.5 |
1.79 |
1.25 |
0.932 |
1.73 |
3.58 |
2.45 |
x 0.203 |
0.203 |
5.80 |
1.70 |
14.2 |
1.53 |
1.06 |
0.947 |
1.45 |
3.06 |
2.11 |
x 0.188 |
0.188 |
5.40 |
1.59 |
15.3 |
1.44 |
1.00 |
0.952 |
1.36 |
2.88 |
1.99 |
2.5 x 0.250 |
0.250 |
6.01 |
1.77 |
10.0 |
1.13 |
0.906 |
0.800 |
1.27 |
2.26 |
1.77 |
x 0.188 |
0.188 |
4.65 |
1.37 |
13.3 |
0.918 |
0.735 |
0.820 |
1.01 |
1.84 |
1.45 |
2.375 x 0.250 |
0.250 |
5.68 |
1.67 |
9.50 |
0.955 |
0.804 |
0.756 |
1.13 |
1.91 |
1.57 |
x 0.218 |
0.218 |
5.03 |
1.48 |
10.9 |
0.868 |
0.731 |
0.766 |
1.02 |
1.74 |
1.44 |
x 0.188 |
0.188 |
4.40 |
1.29 |
12.6 |
0.778 |
0.655 |
0.776 |
0.901 |
1.56 |
1.29 |
x 0.154 |
0.154 |
3.66 |
1.07 |
15.4 |
0.666 |
0.561 |
0.787 |
0.761 |
1.33 |
1.11 |
1.9 x 0.188 |
0.188 |
3.44 |
1.01 |
10.1 |
0.375 |
0.395 |
0.609 |
0.553 |
0.750 |
0.773 |
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