ASTM A9
Chemical composition(mass fraction)(wt.%)
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Mo(％) | V(%) |
|---|---|---|---|---|---|---|---|---|
| 0.45～0.55 | 0.95～1.15 | 0.20～0.50 | ≤0.030 | ≤0.030 | 4.75～5.50 | 1.25～1.75 | 1.30～1.80 | 0.80～1.40 |
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