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Nominal Wall Thickness Schedule

Nominal Pipe SizeOutside Diameter (mm) Nominal Wall Thickness Schedule (as per ANSI B316.19 Standard)
NPSDNODSCH 5sSCH 10sSCH 10SCH 20SCH 30SCH 40sSCH STDSCH 40SCH 60SCH 80sSCH XSSCH 80SCH 100SCH 120SCH 140SCH 160SCH XXS
1/8 6 10.3 1.24 1.73 1.73 1.73 2.41 2.41 2.41
1/4 8 13.7 1.65 2.24 2.24 2.24 3.02 3.02 3.02
3/8 10 17.1 1.65 2.31 2.31 2.31 3.20 3.20 3.20
1/2 15 21.3 1.65 2.11 2.77 2.77 2.77 3.73 3.73 3.73 4.78 7.47
3/4 20 26.7 1.65 2.11 2.87 2.87 2.87 3.91 3.91 3.91 5.56 7.82
1 25 33.4 1.65 2.77 3.38 3.38 3.38 4.55 4.55 4.55 6.35 9.09
1 1/4 32 42.2 1.65 2.77 3.56 3.56 3.56 4.85 4.85 4.85 6.35 9.70
1 1/2 40 48.3 1.65 2.77 3.68 3.68 3.68 5.08 5.08 5.08 7.14 10.15
2 50 60.3 1.65 2.77 3.91 3.91 3.91 5.54 5.54 5.54 8.74 11.07
2 1/2 65 73 2.11 3.05 5.16 5.16 5.16 7.01 7.01 7.01 9.53 14.02
3 80 88.9 2.11 3.05 5.49 5.49 5.49 7.62 7.62 7.62 11.13 15.24
3 1/2 90 101.6 2.11 3.05 5.74 5.74 5.74 8.08 8.08 8.08
4 100 114.3 2.11 3.05 6.02 6.02 6.02 8.56 8.56 8.56 11.13 13.49 17.12
5 125 141.3 2.77 3.40 6.55 6.55 6.55 9.53 9.53 9.53 12.70 15.88 19.05
6 150 168.3 2.77 3.40 7.11 7.11 7.11 10.97 10.97 10.97 14.27 18.26 21.95
8 200 219.1 2.77 3.76 6.35 7.04 8.18 8.188.18 10.31 12.70 12.70 12.70 15.09 18.26 20.62 23.01 22.23
10 250 273.1 3.40 4.19 6.35 7.80 9.27 9.27 9.27 12.70 12.70 12.70 15.09 18.26 21.44 25.40 28.58 25.40
12300 323.9 3.96 4.57 6.35 8.38 9.53 9.53 10.31 14.27 12.70 12.70 17.48 21.44 25.40 28.58 33.32 25.40
14 350 355.6 3.96 4.78 6.35 7.92 9.53 9.53 11.13 15.09 12.70 19.05 23.83 27.79 31.75 35.71