AFNOR 347F20
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.04 | 0.08 | ||
| Si | 1.00 | |||
| Mn | 2.00 | |||
| P | 0.040 | |||
| S | 0.030 | |||
| Cr | 17.00 | 19.00 | ||
| Ni | 11.00 | 13.00 | ||
| Mo | ||||
| B | 0.0015 | 0.0060 | ||
| Nb+Ta | 8×C | 1.00 |
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