Pipe Schedule Chart — ASME B36.10M
Pipe schedule chart for welded and seamless wrought steel pipe to ASME B36.10M: outside diameter, wall thickness in millimetres and plain-end weight in kilograms per metre, from NPS ⅛" to 48".
Nominal pipe size (NPS) fixes the outside diameter; the schedule fixes the wall thickness. STD and Schedule 40 are identical up to NPS 10", and XS and Schedule 80 are identical up to NPS 8". Teshi Group stocks and supplies pipe to ASTM A106, API 5L, A53 and A335, and manufactures the matching flanges and fittings.
Key to dimensions
- OD
- Outside diameter
- t
- Nominal wall thickness for the schedule
- ID
- Inside diameter = OD − 2t
- kg/m
- Plain-end mass = (OD − t) × t × 0.0246615 for carbon steel
Pipe Schedule Chart — ASME B36.10M — tables
Wall thickness (mm) — ASME B36.10M
| NPSin | DN | ODmm | Sch 10 | Sch 20 | Sch 30 | STD | Sch 40 | Sch 60 | XS | Sch 80 | Sch 100 | Sch 120 | Sch 140 | Sch 160 | XXS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ⅛" | 6 | 10.3 | 1.24 | — | 1.45 | 1.73 | 1.73 | — | 2.41 | 2.41 | — | — | — | — | — |
| ¼" | 8 | 13.7 | 1.65 | — | 1.85 | 2.24 | 2.24 | — | 3.02 | 3.02 | — | — | — | — | — |
| ⅜" | 10 | 17.1 | 1.65 | — | 1.85 | 2.31 | 2.31 | — | 3.20 | 3.20 | — | — | — | — | — |
| ½" | 15 | 21.3 | 2.11 | — | 2.41 | 2.77 | 2.77 | — | 3.73 | 3.73 | — | — | — | 4.78 | 7.47 |
| ¾" | 20 | 26.7 | 2.11 | — | 2.41 | 2.87 | 2.87 | — | 3.91 | 3.91 | — | — | — | 5.56 | 7.82 |
| 1" | 25 | 33.4 | 2.77 | — | 2.90 | 3.38 | 3.38 | — | 4.55 | 4.55 | — | — | — | 6.35 | 9.09 |
| 1¼" | 32 | 42.2 | 2.77 | — | 2.97 | 3.56 | 3.56 | — | 4.85 | 4.85 | — | — | — | 6.35 | 9.70 |
| 1½" | 40 | 48.3 | 2.77 | — | 3.18 | 3.68 | 3.68 | — | 5.08 | 5.08 | — | — | — | 7.14 | 10.15 |
| 2" | 50 | 60.3 | 2.77 | — | 3.18 | 3.91 | 3.91 | — | 5.54 | 5.54 | — | — | — | 8.74 | 11.07 |
| 2½" | 65 | 73.0 | 3.05 | — | 4.78 | 5.16 | 5.16 | — | 7.01 | 7.01 | — | — | — | 9.53 | 14.02 |
| 3" | 80 | 88.9 | 3.05 | — | 4.78 | 5.49 | 5.49 | — | 7.62 | 7.62 | — | — | — | 11.13 | 15.24 |
| 3½" | 90 | 101.6 | 3.05 | — | 4.78 | 5.74 | 5.74 | — | 8.08 | 8.08 | — | — | — | — | 16.15 |
| 4" | 100 | 114.3 | 3.05 | — | 4.78 | 6.02 | 6.02 | — | 8.56 | 8.56 | — | 11.13 | — | 13.49 | 17.12 |
| 5" | 125 | 141.3 | 3.40 | — | — | 6.55 | 6.55 | — | 9.53 | 9.53 | — | 12.70 | — | 15.88 | 19.05 |
| 6" | 150 | 168.3 | 3.40 | — | — | 7.11 | 7.11 | — | 10.97 | 10.97 | — | 14.27 | — | 18.26 | 21.95 |
| 8" | 200 | 219.1 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 10.31 | 12.70 | 12.70 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 |
| 10" | 250 | 273.0 | 4.19 | 6.35 | 7.80 | 9.27 | 9.27 | 12.70 | 12.70 | 15.09 | 18.26 | 21.44 | 25.40 | 28.58 | 25.40 |
| 12" | 300 | 323.8 | 4.57 | 6.35 | 8.38 | 9.53 | 10.31 | 14.27 | 12.70 | 17.48 | 21.44 | 25.40 | 28.58 | 33.32 | 25.40 |
| 14" | 350 | 355.6 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 15.09 | 12.70 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | — |
| 16" | 400 | 406.4 | 6.35 | 7.92 | 9.53 | 9.53 | 12.70 | 16.66 | 12.70 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | — |
| 18" | 450 | 457.0 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.70 | 23.83 | 29.36 | 34.93 | 39.67 | 45.24 | — |
| 20" | 500 | 508.0 | 6.35 | 9.53 | 12.70 | 9.53 | 15.09 | 20.62 | 12.70 | 26.19 | 32.54 | 38.10 | 44.45 | 50.01 | — |
| 22" | 550 | 559.0 | 6.35 | 9.53 | 12.70 | 9.53 | — | 22.23 | 12.70 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | — |
| 24" | 600 | 610.0 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 24.61 | 12.70 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | — |
| 26" | 650 | 660.0 | 7.92 | 12.70 | — | 9.53 | — | — | 12.70 | — | — | — | — | — | — |
| 28" | 700 | 711.0 | 7.92 | 12.70 | 15.88 | 9.53 | — | — | 12.70 | — | — | — | — | — | — |
| 30" | 750 | 762.0 | 7.92 | 12.70 | 15.88 | 9.53 | — | — | 12.70 | — | — | — | — | — | — |
| 32" | 800 | 813.0 | 7.92 | 12.70 | 15.88 | 9.53 | 17.48 | — | 12.70 | — | — | — | — | — | — |
| 34" | 850 | 864.0 | 7.92 | 12.70 | 15.88 | 9.53 | 17.48 | — | 12.70 | — | — | — | — | — | — |
| 36" | 900 | 914.0 | 7.92 | 12.70 | 15.88 | 9.53 | 19.05 | — | 12.70 | — | — | — | — | — | — |
| 42" | 1050 | 1067.0 | — | — | — | 9.53 | — | — | 12.70 | — | — | — | — | — | — |
| 48" | 1200 | 1219.0 | — | — | — | 9.53 | — | — | 12.70 | — | — | — | — | — | — |
Weight (kg/m), plain end — ASME B36.10M
| NPSin | DN | ODmm | Sch 10 | Sch 20 | Sch 30 | STD | Sch 40 | Sch 60 | XS | Sch 80 | Sch 100 | Sch 120 | Sch 140 | Sch 160 | XXS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ⅛" | 6 | 10.3 | 0.28 | — | 0.32 | 0.37 | 0.37 | — | 0.47 | 0.47 | — | — | — | — | — |
| ¼" | 8 | 13.7 | 0.49 | — | 0.54 | 0.63 | 0.63 | — | 0.80 | 0.80 | — | — | — | — | — |
| ⅜" | 10 | 17.1 | 0.63 | — | 0.70 | 0.84 | 0.84 | — | 1.10 | 1.10 | — | — | — | — | — |
| ½" | 15 | 21.3 | 1.00 | — | 1.12 | 1.27 | 1.27 | — | 1.62 | 1.62 | — | — | — | 1.95 | 2.55 |
| ¾" | 20 | 26.7 | 1.28 | — | 1.44 | 1.69 | 1.69 | — | 2.20 | 2.20 | — | — | — | 2.90 | 3.64 |
| 1" | 25 | 33.4 | 2.09 | — | 2.18 | 2.50 | 2.50 | — | 3.24 | 3.24 | — | — | — | 4.24 | 5.45 |
| 1¼" | 32 | 42.2 | 2.69 | — | 2.87 | 3.39 | 3.39 | — | 4.47 | 4.47 | — | — | — | 5.61 | 7.77 |
| 1½" | 40 | 48.3 | 3.11 | — | 3.54 | 4.05 | 4.05 | — | 5.41 | 5.41 | — | — | — | 7.25 | 9.55 |
| 2" | 50 | 60.3 | 3.93 | — | 4.48 | 5.44 | 5.44 | — | 7.48 | 7.48 | — | — | — | 11.11 | 13.44 |
| 2½" | 65 | 73.0 | 5.26 | — | 8.04 | 8.63 | 8.63 | — | 11.41 | 11.41 | — | — | — | 14.92 | 20.39 |
| 3" | 80 | 88.9 | 6.46 | — | 9.92 | 11.29 | 11.29 | — | 15.27 | 15.27 | — | — | — | 21.35 | 27.68 |
| 3½" | 90 | 101.6 | 7.41 | — | 11.41 | 13.57 | 13.57 | — | 18.64 | 18.64 | — | — | — | — | 34.03 |
| 4" | 100 | 114.3 | 8.37 | — | 12.91 | 16.08 | 16.08 | — | 22.32 | 22.32 | — | 28.32 | — | 33.54 | 41.03 |
| 5" | 125 | 141.3 | 11.56 | — | — | 21.77 | 21.77 | — | 30.97 | 30.97 | — | 40.28 | — | 49.12 | 57.43 |
| 6" | 150 | 168.3 | 13.83 | — | — | 28.26 | 28.26 | — | 42.56 | 42.56 | — | 54.21 | — | 67.57 | 79.22 |
| 8" | 200 | 219.1 | 19.97 | 33.32 | 36.82 | 42.55 | 42.55 | 53.09 | 64.64 | 64.64 | 75.92 | 90.44 | 100.93 | 111.27 | 107.93 |
| 10" | 250 | 273.0 | 27.78 | 41.76 | 51.01 | 60.29 | 60.29 | 81.53 | 81.53 | 95.98 | 114.71 | 133.01 | 155.10 | 172.27 | 155.10 |
| 12" | 300 | 323.8 | 35.98 | 49.71 | 65.19 | 73.86 | 79.71 | 108.93 | 97.44 | 132.05 | 159.87 | 186.92 | 208.08 | 238.69 | 186.92 |
| 14" | 350 | 355.6 | 54.69 | 67.91 | 81.33 | 81.33 | 94.55 | 126.72 | 107.40 | 158.11 | 194.98 | 224.66 | 253.58 | 281.72 | — |
| 16" | 400 | 406.4 | 62.65 | 77.83 | 93.27 | 93.27 | 123.31 | 160.13 | 123.31 | 203.54 | 245.57 | 286.66 | 333.21 | 365.38 | — |
| 18" | 450 | 457.0 | 70.57 | 87.71 | 122.38 | 105.17 | 155.81 | 205.75 | 139.16 | 254.57 | 309.64 | 363.58 | 408.28 | 459.39 | — |
| 20" | 500 | 508.0 | 78.56 | 117.15 | 155.13 | 117.15 | 183.43 | 247.84 | 155.13 | 311.19 | 381.55 | 441.52 | 508.15 | 564.85 | — |
| 22" | 550 | 559.0 | 86.55 | 129.14 | 171.10 | 129.14 | — | 294.27 | 171.10 | 373.85 | 451.45 | 527.05 | 600.67 | 672.30 | — |
| 24" | 600 | 610.0 | 94.53 | 141.12 | 209.65 | 141.12 | 255.43 | 355.28 | 187.07 | 442.11 | 547.74 | 640.07 | 720.19 | 808.27 | — |
| 26" | 650 | 660.0 | 127.36 | 202.74 | — | 152.88 | — | — | 202.74 | — | — | — | — | — | — |
| 28" | 700 | 711.0 | 137.32 | 218.71 | 272.23 | 164.86 | — | — | 218.71 | — | — | — | — | — | — |
| 30" | 750 | 762.0 | 147.29 | 234.68 | 292.20 | 176.85 | — | — | 234.68 | — | — | — | — | — | — |
| 32" | 800 | 813.0 | 157.25 | 250.65 | 312.17 | 188.83 | 342.94 | — | 250.65 | — | — | — | — | — | — |
| 34" | 850 | 864.0 | 167.21 | 266.63 | 332.14 | 200.82 | 364.92 | — | 266.63 | — | — | — | — | — | — |
| 36" | 900 | 914.0 | 176.97 | 282.29 | 351.73 | 212.57 | 420.45 | — | 282.29 | — | — | — | — | — | — |
| 42" | 1050 | 1067.0 | — | — | — | 248.53 | — | — | 330.21 | — | — | — | — | — | — |
| 48" | 1200 | 1219.0 | — | — | — | 284.25 | — | — | 377.81 | — | — | — | — | — | — |
Notes
- Weights are calculated for carbon steel at 7.85 g/cm³ from the formula in ASME B36.10M.
- A dash means the schedule is not tabulated here for that size.
- Manufacturing tolerance on wall thickness for seamless pipe to ASTM A106 is −12.5%.
Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.
Equivalent and related standards to Pipe Schedule Chart
All equivalents| Region | Standard | Relationship |
|---|---|---|
| International | ISO 4200 / EN 10220 | Outside diameters and wall thicknesses of steel pipes |
| China | GB/T 17395 | Dimensions, shapes, masses and tolerances of seamless steel pipes |
| Japan | JIS G3454 / G3456 / G3459 | Schedule-based pipe dimensions (STPG, STPT, SUS-TP) |
| India | IS 1239-1 / IS 3589 | Indian steel tube and pipe dimensions |
| USA | API 5L | Line pipe dimensions |
Teshi Group manufactures flanges and fittings to all of these standards on request, including Chinese GB / HG / SH and European EN dimensions for export projects. Always confirm bolting, facing and thickness when substituting one standard for another.
Dimension finder
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Pipe Schedule Chart — ASME B36.10M — size by size
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FAQ
Pipe schedule chart — ASME B36.10M: common questions
What is the wall thickness of 6 inch Schedule 40 pipe?
7.11 mm, with an outside diameter of 168.3 mm and a weight of 28.26 kg/m.
Is Schedule 40 the same as standard weight?
Yes up to NPS 10". From NPS 12" upward, STD stays at 9.53 mm wall while Schedule 40 becomes thicker.
How is pipe weight per metre calculated?
Weight in kg/m = (OD − wall thickness) × wall thickness × 0.0246615, with both dimensions in millimetres, for carbon steel.
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