ASTM T15
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 1.50 | 1.60 | ||
| Si | 0.15 | 0.40 | ||
| Mn | 0.15 | 0.40 | ||
| P | 0.030 | |||
| S | 0.030 | |||
| Cr | 3.75 | 5.00 | ||
| Mo | 1.00 | |||
| V | 4.50 | 5.25 | ||
| W | 11.75 | 13.00 | ||
| Co | 4.75 | 5.25 |
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