ASME B36.19M - Pipe Schedule Chart
Stainless Steel & Nickel Alloy - Wall Thickness (mm)
Column Legend
NPS = Nominal Pipe Size (inch) DN = Diameter Nominal (mm) OD = Outside Diameter (mm) 5S/10S/40S/80S = Schedule for stainless steel
All values are wall thickness in mm per ASME B36.19M
| NPS | DN | OD (mm) | 5S | 10S | 40S | 80S |
|---|---|---|---|---|---|---|
| 1/8 | 6 | 10.3 | 1.24 | 1.73 | 1.73 | 2.41 |
| 1/4 | 8 | 13.7 | 1.65 | 2.24 | 2.24 | 3.02 |
| 3/8 | 10 | 17.1 | 1.65 | 2.31 | 2.31 | 3.20 |
| 1/2 | 15 | 21.3 | 1.65 | 2.11 | 2.77 | 3.73 |
| 3/4 | 20 | 26.7 | 1.65 | 2.11 | 2.87 | 3.91 |
| 1 | 25 | 33.4 | 1.65 | 2.77 | 3.38 | 4.55 |
| 1-1/4 | 32 | 42.2 | 1.65 | 2.77 | 3.56 | 4.85 |
| 1-1/2 | 40 | 48.3 | 1.65 | 2.77 | 3.68 | 5.08 |
| 2 | 50 | 60.3 | 1.65 | 2.77 | 3.91 | 5.54 |
| 2-1/2 | 65 | 73.0 | 2.11 | 3.05 | 5.16 | 7.01 |
| 3 | 80 | 88.9 | 2.11 | 3.05 | 5.49 | 7.62 |
| 3-1/2 | 90 | 101.6 | 2.11 | 3.05 | 5.74 | 8.08 |
| 4 | 100 | 114.3 | 2.11 | 3.05 | 6.02 | 8.56 |
| 5 | 125 | 141.3 | 2.77 | 3.40 | 6.55 | 9.53 |
| 6 | 150 | 168.3 | 2.77 | 3.40 | 7.11 | 10.97 |
| 8 | 200 | 219.1 | 2.77 | 3.76 | 8.18 | 12.70 |
| 10 | 250 | 273.0 | 3.40 | 4.19 | 9.27 | 12.70 |
| 12 | 300 | 323.8 | 3.96 | 4.57 | 9.53 | 12.70 |
| 14 | 350 | 355.6 | 3.96 | 4.78 | 9.53 | 12.70 |
| 16 | 400 | 406.4 | 4.19 | 4.78 | 9.53 | 12.70 |
| 18 | 450 | 457.2 | 4.19 | 4.78 | 9.53 | 12.70 |
| 20 | 500 | 508.0 | 4.78 | 5.54 | 9.53 | 12.70 |
| 22 | 550 | 558.8 | 4.78 | 5.54 | 9.53 | 12.70 |
| 24 | 600 | 609.6 | 5.54 | 6.35 | 9.53 | 12.70 |
| 30 | 750 | 762.0 | 6.35 | 7.92 | - | - |