| Nominal size | Outside diameter (mm) | Carbon steel pipes for ordinary piping <SGP> (JIS G3452) | Carbon steel pipes for pressure service <STPG>(JIS G3454) | ||||||
| Nominal thickness | |||||||||
| A | B | Thickness (mm) | Sch10 | Sch20 | Sch30 | Sch40 | Sch60 | Sch80 | |
| 6 | 1/8 | 10.5 | 2 | - | - | - | 1.7 | 2.2 | 2.4 |
| 8 | 1/4 | 13.8 | 2.3 | - | - | - | 2.2 | 2.4 | 3 |
| 10 | 3/8 | 17.3 | 2.3 | - | - | - | 2.3 | 2.8 | 3.2 |
| 15 | 1/2 | 21.7 | 2.8 | - | - | - | 2.8 | 3.2 | 3.7 |
| 20 | 3/4 | 27.2 | 2.8 | - | - | - | 2.9 | 3.4 | 3.9 |
| 25 | 1 | 34 | 3.2 | - | - | - | 3.4 | 3.9 | 4.5 |
| 32 | 1 1/4 | 42.7 | 3.5 | - | - | - | 3.6 | 4.5 | 4.9 |
| 40 | 1 1/2 | 48.6 | 3.5 | - | - | - | 3.7 | 4.5 | 5.1 |
| 50 | 2 | 60.5 | 3.8 | - | 3.2 | - | 3.9 | 4.9 | 5.5 |
| 65 | 2 1/2 | 76.3 | 4.2 | - | 4.5 | - | 5.2 | 6 | 7 |
| 80 | 3 | 89.1 | 4.2 | - | 4.5 | - | 5.5 | 6.6 | 7.6 |
| 90 | 3 1/2 | 101.6 | 4.2 | - | 4.5 | - | 5.7 | 7 | 8.1 |
| 100 | 4 | 114.3 | 4.5 | - | 4.9 | - | 6 | 7.1 | 8.6 |
| 125 | 5 | 139.8 | 4.5 | - | 5.1 | - | 6.6 | 8.1 | 9.5 |
| 150 | 6 | 165.2 | 5 | - | 5.5 | - | 7.1 | 9.3 | 11 |
| 200 | 8 | 216.3 | 5.8 | - | 6.4 | 7 | 8.2 | 10.3 | 12.7 |
| 250 | 10 | 267.4 | 6.6 | - | 6.4 | 7.8 | 9.3 | 12.7 | 15.1 |
| 300 | 12 | 318.5 | 6.9 | - | 6.4 | 8.4 | 10.3 | 14.3 | 17.4 |
| 350 | 14 | 355.6 | 7.9 | 6.4 | 7.9 | 9.5 | 11.1 | 15.1 | 19 |
| 400 | 16 | 406.4 | 7.9 | 6.4 | 7.9 | 9.5 | 12.7 | 16.7 | 21.4 |
