B.S. NA18
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.25 | |||
| Si | 0.50 | |||
| Mn | 1.50 | |||
| P | ||||
| S | 0.010 | |||
| Cr | ||||
| Ni+Co | 63.00 | |||
| Mo | ||||
| Al | 2.30 | 3.20 | ||
| Cu | 27.00 | 33.00 | ||
| Ti | 0.35 | 0.85 | ||
| Fe | 2.00 |
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