| Chemical Composition and Mechanical Property ASTM A335 | |||||||||||
| Steel Grade | Chemcial Composition | Elongation | Mechanical performance | ||||||||
| C(Max) | Mn | P(Max) | S(Max) | Si | Cr | Mo | Min(%) | Tensile strenght (Min) |
Yield Strenght (Min) |
||
| Mpa | Mpa | ||||||||||
| P9 | 0.15 | 0.3-0.6 | 0.025 | 0.025 | 0.25-1.0 | 8.0-10.0 | 0.9-1.10 0.12 |
30 | 415 | 205 | |