GB GH4220
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.08 | |||
| Cr | 9.0 | 12.0 | ||
| Mo | 5.0 | 7.0 | ||
| Ni | Remainder | |||
| Co | 14.0 | 15.0 | ||
| W | 5.0 | 6.5 | ||
| Al | 3.9 | 4.8 | ||
| Ti | 2.2 | 2.9 | ||
| B | 0.02 | |||
| Fe | 3.0 | |||
| V | 0.2 | 0.8 | ||
| Mg | trace |
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