SAE A11
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 2.40 | 2.50 | ||
| Si | 0.75 | 1.10 | ||
| Mn | 0.35 | 0.60 | ||
| Cr | 4.75 | 5.50 | ||
| Mo | 1.10 | 1.50 | ||
| V | 9.25 | 10.25 | ||
| W | 0.50 | |||
| S | 0.05 | 0.09 |
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