SAE A 580 S21900
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.08 | |||
| Mn | 8.00 | 10.00 | ||
| Si | 1.00 | |||
| P | 0.06 | |||
| S | 0.03 | |||
| Cr | 19.00 | 21.50 | ||
| Ni | 5.50 | 7.50 | ||
| Mo | ||||
| N | 0.15 | 0.40 |
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