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Chemical composition | C | Mn | Si | Mo | S | P |
Guarantee value | 0.06 | 0.9 | 0.3 | 0.005 | 0.015 | 0.020 |
Items | Rm/MPa | Rel/MPa | A/% | KV2 (-30℃)/J |
Requirement | 490 - 660 | ≥ 400 | ≥22 | ≥ 80 |
Test result | 590 | 480 | 28 | 160 |






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