DIN 1.2738 Tool Steel is pre-hardened plastic mold steel as per German standard.It contains Cr-Ni-Mo as its enhancing element,and has relatively superior mechanical properties in similar grades of steel,such as 1.2311,1.2312.

DIN 1.2738 steel has excellent processing properties,such as excellent polishing properties, good machinability and wear resistance.It is mainly used for the processing and production of hot work molds, among which the application of plastic molds is the most common.In addition, the special pre-hardening treatment of the steel is usually achieved by quenching and tempering heat treatment, and the hardness is usually 280-320HB.