082234345919 
Wall Thickness Pipe and Fitting
02 December 2015 Category Pipe Standard
Wall Thickness Chart for pipe and fittings
This table uses JIS standard. There is neglegible difference in outside diameter and thickness between JIS and ASME, except size 2-1/2". ASME outside diameter for size 2-1/2" is 73mm. While JIS is 76mm.
| A | B | OD | Sch. 5S | Sch. 10S | Sch. 20S | Sch. 40S | Sch. 80S |
| T | T | T | T | T | |||
| 10 | 3/8 | 17.3 | 1.2 | 1.7 | 2.0 | 2.3 | 3.2 |
| 15 | 1/2 | 21.7 | 1.7 | 2.1 | 2.5 | 2.8 | 3.7 |
| 20 | 3/4 | 27.2 | 1.7 | 2.1 | 2.5 | 2.9 | 3.9 |
| 25 | 1 | 34 | 1.7 | 2.8 | 3.0 | 3.4 | 4.5 |
| 32 | 1-1/4 | 42.7 | 1.7 | 2.8 | 3.0 | 3.6 | 4.9 |
| 40 | 1-1/2 | 48.6 | 1.7 | 2.8 | 3.0 | 3.7 | 5.1 |
| 50 | 2 | 60.5 | 1.7 | 2.8 | 3.5 | 3.9 | 5.5 |
| 65 | 2-1/2 | 76.3/73.0 | 2.1 | 3.0 | 3.5 | 5.2 | 7.0 |
| 80 | 3 | 89.1 | 2.1 | 3.0 | 4.0 | 5.5 | 7.6 |
| 90 | 3-1/2 | 101.6 | 2.1 | 3.0 | 4.0 | 5.7 | 8.1 |
| 100 | 4 | 114.3 | 2.1 | 3.0 | 4.0 | 6.0 | 8.6 |
| 125 | 5 | 139.8 | 2.8 | 3.4 | 5.0 | 6.6 | 9.5 |
| 150 | 6 | 165.2 | 2.8 | 3.4 | 5.0 | 7.1 | 11.0 |
| 200 | 8 | 216.3 | 2.8 | 4.0 | 6.5 | 8.2 | 12.7 |
| 250 | 10 | 267.4 | 3.4 | 4.0 | 6.5 | 9.3 | 15.1 |
| 300 | 12 | 318.5 | 4.0 | 4.5 | 6.5 | 10.3 | 17.4 |
| 350 | 14 | 355.6 | 4.0 | 5.0 | 8.0 | 11.1 | 19.0 |
| 400 | 16 | 406.4 | 4.5 | 5.0 | 8.0 | 12.7 | 21.4 |
| 450 | 18 | 457.2 | 4.5 | 5.0 | 8.0 | 14.3 | 23.8 |
| 500 | 20 | 508 | 5.0 | 5.5 | 9.5 | 15.1 | 26.2 |
| 550 | 22 | 558.8 | 5.0 | 5.5 | 9.5 | 15.9 | 28.6 |
| 600 | 24 | 609.6 | 5.5 | 6.5 | 9.5 | 17.5 | 31.0 |
| 650 | 26 | 660.4 | 5.5 | 8.0 | 12.7 | - | 34.0 |
| 700 | 28 | 711.2 | 5.5 | 8.0 | 12.7 | 17.5 | - |
| 750 | 30 | 762 | 6.5 | 8.0 | 12.7 | 17.5 | - |
| 800 | 32 | 812.8 | - | 8.0 | 12.7 | 17.5 | - |
| 850 | 34 | 863.6 | - | 8.0 | 12.7 | 17.5 | - |
| 900 | 36 | 914.4 | - | 8.0 | 12.7 | 19.1 | - |
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