1.7027 | 20Cr4 with dual-phase structure
| Numeric designation | 1.7027 |
|---|---|
| Chemical designation | 20Cr4 |
| State | dual-phase structure |
| Etching | 3% Nital |
This 20Cr4 was partially austenitised and quenched. The former pearlite particles were transformed into martensite by subsequent quenching. The former pearlite lamellae can still be partially recognised as a substructure. The edge is decarburised to a depth of approx. 400 µm.
