1.7225 | 42CrMo4 investment casting
| Numeric designation | 1.7225 |
|---|---|
| Chemical designation | 42CrMo4 |
| State | investment casting |
| Etching | 3 % Nital |
The microstructure of upper bainite is very coarse here. The former austenite grain size is also huge with approx. 1 mm. The hardness is 290 HV0.5.
