Nominal Size B
Wall Thickness
8 1/4 S80 14.3 23 10 9.4 17.9 7.9
10 3/8 S80 17.8 28 13 12.7 20.9 7.9
15 1/2 S80 22.2 33 13 16.1 24.1 11.1
20 3/4 S80 27.7 38 16 21.4 28.7 12.7
25 1 S80 34.5 47 16 27.2 30.3 14.3
32 11/4 S80 43.2 57 18 35.5 35.5 17.5
40 11/2 S80 49.1 64 19 41.2 39.6 20.6
50 2 S80 61.1 77 22 52.7 47.4 25.4
65 21/2 S80 77.1 96 26 65.9 54.6 28.6
80 3 S80 90.0 110 29 78.1 60.8 31.8
15 1/2 S160 22.2 38 16 12.3 28.7 12.7
20 3/4 S160 27.7 47 16 16.2 30.3 14.3
25 1 S160 34.5 57 18 21.2 35.5 17.5
32 11/4 S160 43.2 64 19 29.9 39.6 20.6
40 11/2 S160 49.1 77 22 34.4 47.4 25.4
50 2 S160 61.1 91 23 43.1 51.6 28.6
65 21/2 S160 77.1 110 28 57.3 59.8 31.8
80 3 S160 90.0 120 31 66.9 65.9 34.9