1.7182 | 27MnCrB5-2 +QT
| Numeric designation | 1.7182 |
|---|---|
| Chemical designation | 27MnCrB5-2 |
| State | +QT |
| Etching | 3% Nital |
The micrographs show the core structure of a boron-alloyed quenched and tempered steel. It consists of martensite and bainite. The core hardness is 445 HV0.5 20 mm below the surface.
