| Chemical Composition and Mechanical Property For ASTM A333 | ||||||||||
| Steel Grade | Chemcial Composition | Mechanical performance | ||||||||
| C(Max) | Si | Mn | P(Max) | S(Max) | Ni | Tensile Strength (Min) | Yield Strength (Min) |
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| psi | Mpa | psi | Mpa | |||||||
| Grade 1 | 0.3 | 0.4-1.06 | 0.025 | 0.025 | / | 55000 | 380 | 30000 | 205 | |
| Steel Grade | Impact Temperature Requirement For ASTM A333 | |
| ℉ | ℃ | |
| Grade 1 | -50 | -45 |