ASTM H19
Chemical composition(mass fraction)(wt.%)
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Mo(％) | V(%) | W(%) | Co(%) |
|---|---|---|---|---|---|---|---|---|---|
| 0.32～0.45 | 0.20～0.50 | 0.20～0.50 | ≤0.030 | ≤0.030 | 4.00～4.75 | 0.30～0.55 | 1.75～2.20 | 3.75～4.50 | 4.00～4.50 |
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