GOST XH51BMTЮKΦP(ЭП220)
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.08 | |||
| Si | 0.50 | |||
| Mn | 0.50 | |||
| P | 0.015 | |||
| S | 0.009 | |||
| Cr | 9.00 | 12.00 | ||
| Ni | remaining | |||
| Mo | 5.00 | 8.00 | ||
| Al | 3.90 | 4.80 | ||
| Ti | 2.20 | 2.90 | ||
| Fe | 3.00 | |||
| Co | 14.00 | 16.00 | ||
| W | 5.00 | 7.00 | ||
| V | 0.20 | 0.80 | ||
| B | 0.020 |
