ELEMENTS OF SECTION

Round Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Inch
Inch
Lb.
Inch2
Inch4
Inch3
Inch
3-1/2
 0.3750  3/8
12.53
3.68
4.56
2.61
1.11
 0.3125  5/16
10.65
3.13
4.01
2.29
1.13
 0.2500  1/4
8.69
2.55
3.39
1.94
1.15
 0.1875  3/16
6.64
1.95
2.68
1.53
1.17
4
 0.3750  3/8
14.53
4.27
7.09
3.54
1.29
 0.3125  5/16
12.32
3.62
6.20
3.10
1.31
 0.2500  1/4
10.02
2.95
5.20
2.60
1.33
 0.1875  3/16
7.64
2.25
4.09
2.05
1.35
4-1/2
 0.3750  3/8
16.54
4.86
10.4
4.63
1.46
 0.3125  5/16
13.99
4.11
9.06
4.03
1.48
 0.2500  1/4
11.36
3.34
7.56
3.36
1.51
 0.1875  3/16
8.64
2.54
5.92
2.63
1.53
5
 0.5000  1/2
24.05
7.07
18.1
7.25
1.60
 0.3750  3/8
18.54
5.45
14.7
5.87
1.64
 0.3125  5/16
15.66
4.60
12.7
5.08
1.66
 0.2500  1/4
12.69
3.73
10.6
4.22
1.68
 0.1875  3/16
9.65
2.83
8.22
3.29
1.70
5-1/2
 0.5000  1/2
26.73
7.85
24.8
9.01
1.78
 0.3750  3/8
20.55
6.04
19.9
7.25
1.82
 0.3125  5/16
17.33
5.09
17.2
6.25
1.84
 0.2500  1/4
14.03
4.12
14.2
5.18
1.86
 0.1875  3/16
10.65
3.13
11.1
4.02
1.88
6-1/8
 0.6250  5/8
36.75
10.80
41.4
13.5
1.96
 0.5000  1/2
30.07
8.84
35.2
11.5
2.00
 0.3750  3/8
23.05
6.77
28.1
9.18
2.04
 0.3125  5/16
19.42
5.71
24.2
7.89
2.06
 0.2500  1/4
15.70
4.61
19.9
6.51
2.08
 0.1875  3/16
11.90
3.50
15.4
5.04
2.10
6-5/8
 0.6250  5/8
40.09
11.79
53.6
16.2
2.13
 0.5000  1/2
32.74
9.62
45.4
13.7
2.17
 0.3750  3/8
25.06
7.36
36.1
10.9
2.21
 0.3125  5/16
21.09
6.20
30.9
9.34
2.23
 0.2500  1/4
17.04
5.01
25.5
7.69
2.26
 0.1875  3/16
12.90
3.79
19.7
5.94
2.28

*Outside dimensions across flat sides.

ELEMENTS OF SECTION

Round Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Inch
Inch
Lb.
Inch2
Inch4
Inch3
Inch
6-7/8
 0.6250  5/8
41.76
12.27
60.5
17.6
2.22
 0.5000  1/2
34.07
10.01
51.2
14.9
2.26
 0.3750  3/8
26.06
7.66
40.6
11.8
2.30
 0.3125  5/16
21.92
6.44
34.8
10.1
2.32
 0.2500  1/4
17.71
5.20
28.6
8.32
2.34
 0.1875  3/16
13.40
3.94
22.0
6.41
2.37
7-1/2
 0.6250  5/8
45.93
13.50
80.4
21.4
2.44
 0.5000  1/2
37.42
11.00
67.7
18.1
2.48
 0.3750  3/8
28.56
8.39
53.4
14.2
2.52
 0.3125  5/16
24.01
7.06
45.7
12.2
2.54
 0.2500  1/4
19.38
5.69
37.5
9.99
2.56
 0.1875  3/16
14.66
4.31
28.8
7.68
2.59
8-3/4
 0.6250  5/8
54.29
15.95
132.0
30.3
2.88
 0.5000  1/2
44.10
12.96
111.0
25.3
2.92
 0.3750  3/8
33.57
9.87
86.7
19.8
2.96
 0.3125  5/16
28.19
8.28
73.8
16.9
2.99
 0.2500  1/4
22.72
6.68
60.3
13.8
3.01
 0.1875  3/16
17.16
5.04
46.2
10.6
3.03
10
 0.6250  5/8
62.64
18.41
203.0
40.6
3.32
 0.5000  1/2
50.78
14.92
169.0
33.8
3.36
 0.3750  3/8
38.58
11.34
132.0
26.3
3.41
 0.3125  5/16
32.36
9.51
112.0
22.3
3.43
 0.2500  1/4
26.06
7.66
91.1
18.2
3.45
 0.1875  3/16
19.67
5.78
69.6
13.9
3.47
11-1/4
 0.6250  5/8
70.99
20.86
295.0
52.5
3.76
 0.5000  1/2
57.46
16.89
244.0
43.5
3.80
 0.3750  3/8
43.60
12.81
190.0
33.7
3.85
 0.3125  5/16
36.54
10.74
161.0
28.6
3.87
 0.2500  1/4
29.40
8.64
131.0
23.2
3.89
 0.1875  3/16
22.17
6.52
99.7
17.7
3.91
12-1/2
 0.6250  5/8
79.34
23.32
412.0
65.9
4.20
 0.5000  1/2
64.14
18.85
340.0
54.4
4.25
 0.3750  3/8
48.61
14.28
263.0
42.0
4.29
 0.3125  5/16
40.71
11.97
222.0
35.6
4.31
 0.2500  1/4
32.74
9.62
181.0
28.9
4.33
 0.1875  3/16
24.68
7.25
137.0
22.0
4.35

*Outside dimensions across flat sides.