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C | SI | Mn | P | S | Cr |
0.12~0.18 | 0.17~0.37 | 1.2~1.6 | 0.035 | 0.035 | 0.30 |
Cu | Ni | Mo | B | V |
0.30 | 0.30 | 0.15 | 0.0005~0.0035 | 0.07~0.12 |
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885MPa | 635MPa | 10% | 45% | 55J | 207 | 15mm |
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