JIS SUH 660
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.08 | |||
| Si | 1.00 | |||
| Mn | 2.00 | |||
| P | 0.04 | |||
| S | 0.03 | |||
| Cr | 13.50 | 16.00 | ||
| Ni | 24.00 | 27.00 | ||
| Mo | 1.00 | 1.50 | ||
| V | 0.10 | 0.50 | ||
| Ti | 1.90 | 2.35 | ||
| Al | 0.35 | |||
| B | 0.001 | 0.010 |
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