DIN 1.2550
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.55 | 0.65 | ||
| Si | 0.50 | 0.70 | ||
| Mn | 0.15 | 0.45 | ||
| P | 0.030 | |||
| S | 0.030 | |||
| Cr | 0.90 | 1.20 | ||
| Mo | ||||
| V | 0.10 | 0.20 | ||
| W | 1.80 | 2.10 |
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