KS STR4
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.75 | 0.85 | ||
| Si | 1.75 | 2.25 | ||
| Mn | 0.20 | 0.60 | ||
| P | 0.03 | |||
| S | 0.03 | |||
| Cr | 19.00 | 20.50 | ||
| Ni | 1.15 | 1.65 | ||
| Mo | ||||
| N | ||||
| Cu | 0.30 |
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