B.S. HR4
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.12 | 0.20 | ||
| Si | 1.00 | |||
| Mn | 1.00 | |||
| P | ||||
| S | 0.015 | |||
| Cr | 14.00 | 16.00 | ||
| Ni | remaining | |||
| Mo | 3.00 | 5.00 | ||
| Co | 13.00 | 15.50 | ||
| Ti | 3.50 | 4.50 | ||
| Fe | 1.00 | |||
| Al | 4.50 | 5.50 | ||
| Cu | 0.20 | |||
| B | 0.0100 | 0.0250 | ||
| Bi | 0.0001 | |||
| Pb | 0.0015 | |||
| Ag | 0.0005 | |||
| Zr | 0.15 |
