AFNOR 1.4521
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.025 | |||
| Si | 1.00 | |||
| Mn | 1.00 | |||
| P | 0.040 | |||
| S | 0.015 | |||
| Cr | 17.00 | 20.00 | ||
| Mo | 1.80 | 2.50 | ||
| Ni | ||||
| Ti | 12×(C+N)+0.15 | 0.80 | ||
| N | 0.030 |
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