Back (Fe-Base)

1.1248 | C75S +I isotherm hardened

Numeric designation1.1248
Chemical designationC75S
StateI (isothermally hardened)
Etching5 % Nital

The sample was interstage quenched and tempered (bainitised). The microstructure consists of bainite. Carbides are still present. The holding time at austenitisation temperature could be slightly extended.

The hardness is 497 HV0.5.