ГОСТ Р9М4К8
Chemical composition(mass fraction)(wt.%)
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Mo(％) | V(%) | W(%) | Cu(%) | Co(%) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.00-1.10 | 0.20-0.50 | 0.20-0.50 | ≤0.030 | ≤0.030 | 7.50-8.50 | 2.30-2.70 | 3.80-4.30 | 2.30-2.70 | 2.30-2.70 | ≤0.25 | 7.50-8.50 |
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