Nominal Wall Thickness Schedule

Nominal Pipe Size Outside Diameter (mm) Nominal Wall Thickness Schedule (as per ANSI B316.19 Standard)
NPS DN OD SCH 5s SCH 10s SCH 10 SCH 20 SCH 30 SCH 40s SCH STD SCH 40 SCH 60 SCH 80s SCH XS SCH 80 SCH 100SCH 120 SCH 140 SCH 160 SCH 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 8.18 8.18 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
12 300 323.9 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