B.S. NA19
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.13 | |||
| Si | 1.50 | |||
| Mn | 1.00 | |||
| P | ||||
| S | 0.015 | |||
| Cr | 18.00 | 21.00 | ||
| Ni | remaining | |||
| Mo | ||||
| Al | 0.80 | 2.00 | ||
| Cu | ||||
| Ti | 1.80 | 3.00 | ||
| Fe | 3.00 | |||
| Co | 15.00 | 21.00 | ||
| B | 0.0010 | 0.0300 | ||
| Zr | 0.15 |
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