GB GH1131
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.10 | |||
| Cr | 19.0 | 22.0 | ||
| Mo | 2.80 | 3.50 | ||
| Ni | 25.0 | 30.0 | ||
| W | 4.80 | 6.00 | ||
| Nb | 0.70 | 1.30 | ||
| Si | 0.80 | |||
| Mn | 1.20 | |||
| P | 0.020 | |||
| S | 0.020 | |||
| B | 0.005 | |||
| N | 0.15 | 0.30 |
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