| Tolerance for wall thickness: | |
| Wall thickness t mm(in) |
Tolerances mm(in) |
| Welded pipe | |
| ≤5.0(0.197) | ±0.5(0.020) |
| >5.0(0.197) to<15.0(0.591) | ±0.1 t |
| ≥15.0(0.591) | ±1.5(0.060) |
| Chemical Composition and Mechanical Property For PSL .2 | ||||||||||||
| Steel Grade | Chemcial Composition | Mechanical performance | ||||||||||
| C(Max) | Mn(Max) | P(Max) | S(Max) | Tensile Strength (Min) |
Tensile Strength (Max) |
Yield Strength (Min) |
Yield Strength (Max) |
|||||
| psi | Mpa | psi | Mpa | psi | Mpa | psi | Mpa | |||||
| BR | 0.24 | 1.20 | 0.025 | 0.015 | 60200 | 415 | 95000 | 655 | 35500 | 245 | 65300 | 450 |
| BN | 0.24 | 1.20 | 0.025 | 0.015 | 60200 | 415 | 95000 | 655 | 35500 | 245 | 65300 | 450 |
| BQ | 0.18 | 1.40 | 0.025 | 0.015 | 60200 | 415 | 95000 | 655 | 35500 | 245 | 65300 | 450 |
| BM | 0.22 | 1.20 | 0.025 | 0.015 | 60200 | 415 | 95000 | 655 | 35500 | 245 | 65300 | 450 |