China · YB
K409
YB/T 5248:1993 — Master heat-resisting superalloys for castings
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| Al | 5.75 | 6.25 | ||
| B | 0.01 | 0.02 | ||
| C | 0.08 | 0.13 | ||
| Co | 9.5 | 10.5 | ||
| Cr | 7.5 | 8.5 | ||
| Fe | 2 | |||
| Mn | 0.5 | |||
| Mo | 5.75 | 6.25 | ||
| Ni | Bal | Bal | ||
| P | 0.015 | |||
| S | 0.01 | |||
| Si | 0.5 | |||
| Ta | 4 | 4.5 | ||
| Ti | 0.8 | 1.2 | ||
| Zr | 0.05 | 0.1 |