TECHNICALPIPELINE
Welded & Seamless Wrought Steel Pipe
Technical Reference
Welded & Seamless Wrought Steel Pipe — Schedule Wall Thickness
ASME B36.10M-2015 · ASME B36.19M-2004 (Stainless: Sch 5S, 10S, 40S, 80S)
Sch 40 / STD Standard value Not applicable
| Identification | Light Wall | Standard / Heavy | Extra Heavy | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NPS | DN | OD mm | Sch 5 | Sch 10 | Sch 20 | Sch 30 | Sch 40 STD | Sch 60 | Sch 80 XS | Sch 100 | Sch 120 | Sch 140 | Sch 160 | XXS |
| 1/8 | 6 | 10.3 | — | 1.24 | — | 1.45 | 1.73 | — | 2.41 | — | — | — | — | — |
| 1/4 | 8 | 13.7 | — | 1.65 | — | 1.85 | 2.24 | — | 3.02 | — | — | — | — | — |
| 3/8 | 10 | 17.1 | — | 1.65 | — | 1.85 | 2.31 | — | 3.20 | — | — | — | — | — |
| 1/2 | 15 | 21.3 | 1.65 | 2.11 | — | — | 2.77 | — | 3.73 | — | — | — | 4.78 | 7.47 |
| 3/4 | 20 | 26.7 | 1.65 | 2.11 | — | — | 2.87 | — | 3.91 | — | — | — | 5.56 | 7.82 |
| 1 | 25 | 33.4 | 1.65 | 2.77 | — | — | 3.38 | — | 4.55 | — | — | — | 6.35 | 9.09 |
| 1-1/4 | 32 | 42.2 | 1.65 | 2.77 | — | — | 3.56 | — | 4.85 | — | — | — | 6.35 | 9.70 |
| 1-1/2 | 40 | 48.3 | 1.65 | 2.77 | — | — | 3.68 | — | 5.08 | — | — | — | 7.14 | 10.15 |
| 2 | 50 | 60.3 | 1.65 | 2.77 | — | — | 3.91 | — | 5.54 | — | — | — | 8.74 | 11.07 |
| 2-1/2 | 65 | 73.0 | 2.11 | 3.05 | — | — | 5.16 | — | 7.01 | — | — | — | 9.53 | 14.02 |
| 3 | 80 | 88.9 | 2.11 | 3.05 | — | — | 5.49 | — | 7.62 | — | — | — | 11.13 | 15.24 |
| 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 | — | 11.13 | — | 13.49 | 17.12 |
| 5 | 125 | 141.3 | 2.77 | 3.40 | — | — | 6.55 | — | 9.53 | — | 12.70 | — | 15.88 | 19.05 |
| 6 | 150 | 168.3 | 2.77 | 3.40 | — | — | 7.11 | — | 10.97 | — | 14.27 | — | 18.26 | 21.95 |
| 8 | 200 | 219.1 | 2.77 | 3.76 | 6.35 | 7.04 | 8.18 | 10.31 | 12.70 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 |
| 10 | 250 | 273.0 | 3.40 | 4.19 | 6.35 | 7.80 | 9.27 | 12.70 | 15.09 | 18.26 | 21.44 | 25.40 | 28.58 | — |
| 12 | 300 | 323.8 | 3.96 | 4.57 | 6.35 | 8.38 | 10.31 | 14.27 | 17.48 | 21.44 | 25.40 | 28.58 | 33.32 | — |
| 14 | 350 | 355.6 | 3.96 | 4.78 | 7.92 | 9.53 | 11.13 | 15.09 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | — |
| 16 | 400 | 406.4 | 4.19 | 4.78 | 7.92 | 9.53 | 12.70 | 16.66 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | — |
| 18 | 450 | 457.2 | 4.19 | 4.78 | 7.92 | 11.13 | 14.27 | 19.05 | 23.83 | 29.36 | 34.93 | 39.67 | 45.24 | — |
| 20 | 500 | 508.0 | 4.78 | 5.54 | 9.53 | 12.70 | 15.09 | 20.62 | 26.19 | 32.54 | 38.10 | 44.45 | 50.01 | — |
| 24 | 600 | 609.6 | 5.54 | 6.35 | 9.53 | 14.27 | 17.48 | 24.61 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | — |
| Source: Public reference data based on ASME B36.10M-2015 & ASME B36.19M-2004. | STD = Sch 40 up to NPS 10 · XS = Sch 80 up to NPS 8. | For official engineering use, purchase the standard from ASME. | ||||||||||||||
Note: All values represent wall thickness in millimeters (mm). A dash (—) indicates that a wall thickness for that schedule is not specified in the standard for that pipe size. STD (Standard) and XS (Extra Strong) align with Sch 40 and Sch 80 respectively for smaller pipe sizes. XXS (Double Extra Strong) has no schedule number equivalent.
Latest Updates by TECHNICAL PIPELINE
Contact Us
Have questions? Get in touch!
Mon-Fri: 9 AM – 6 PMSaturday: 9 AM – 4 PMSunday: Closed
