BM4
Chemical composition(mass fraction)(wt.%)
| C(％) | Si(％) | Mn(％) | Cr(％) | Ni(％) | Mo(％) | V(%) | W(%) | Co(%) | Other(%) |
|---|---|---|---|---|---|---|---|---|---|
| 1.25-1.40 | ≤0.40 | ≤0.40 | ≤1.00 | ≤0.40 | 4.25-5.00 | 3.75-4.25 | 5.75-6.50 | ≤1.00 | Cu≤0.20,Sn≤0.05 |
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