JIS NCF 718
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.08 | |||
| Si | 0.35 | |||
| Mn | 0.35 | |||
| P | 0.015 | |||
| S | 0.015 | |||
| Cr | 17.00 | 21.00 | ||
| Ni | 50.00 | 55.00 | ||
| Cu | 0.30 | |||
| Al | 0.20 | 0.80 | ||
| Ti | 0.65 | 1.15 | ||
| Fe | remaining | |||
| Nb+Ta | 4.75 | 5.50 | ||
| Mo | 2.80 | 3.30 | ||
| B | 0.006 |
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