| Chemical Composition and Mechanical Property For ASTM A333 | ||||||||||
| Steel Grade | Chemcial Composition | Mechanical performance | ||||||||
| C(Max) | Si | Mn | P(Max) | S(Max) | Ni | Tensile strenght(Min) | Yield Strenght (Min) |
|||
| psi | Mpa | psi | Mpa | |||||||
| Grade 1 | 0.3 | 0.4-1.06 | 0.025 | 0.025 | 55000 | 380 | 30000 | 205 | ||
| Grade 3 | 0.19 | 0.18-0.37 | 0.31-0.64 | 0.025 | 0.025 | 3.18-3.82 | 65000 | 450 | 35000 | 240 |
| Grade 4 | 0.12 | 0.08-0.37 | 0.5-1.05 | 0.025 | 0.025 | 0.47-0.98 | 60000 | 415 | 35000 | 240 |
| Grade 6 | 0.3 | 0.10(Min) | 0.29-1.06 | 0.025 | 0.025 | 60000 | 415 | 35000 | 240 | |
| Grade 7 | 0.19 | 0.13-0.32 | 0.90(Max) | 0.025 | 0.025 | 2.03-2.57 | 65000 | 450 | 35000 | 240 |
| Grade 8 | 0.13 | 0.13-0.32 | 0.90(Max) | 0.025 | 0.025 | 8.4-9.6 | 100000 | 690 | 75000 | 515 |
| Grade 9 | 0.2 | 0.4-1.06 | 0.025 | 0.025 | 1.6-2.24 | 63000 | 435 | 46000 | 315 | |
| Grade 10 | 0.2 | 0.1-0.35 | 1.15-1.5 | 0.035 | 0.015 | 0.25(Max) | 80000 | 550 | 65000 | 450 |
| Grade 11 | 0.1 | 0.35(Max) | 0.6(Max) | 0.025 | 0.025 | 35-37 | 65000 | 450 | 35000 | 240 |
Source: https://www.greatsteel.com/astm-a333-gr-1-carbon-seamless-pipe-for-low-temperature-service.html