Heat treatable steels and precipitation hardening steels

The development of ever-larger plastic parts places increasing importance on the correct heat treatment of the moulds. In order to eliminate dimensional changes and quench cracking, pre-heat-treated steels are used for large tools. They are heat-treated to a hardness of 290 – 400 HB / approx. 30 – 43 HRc by the manufacturer. At this hardness, the steel retains its good machinability but still has a good wear resistance and adequate strength.

Particular advantages of pre-heat treated steels are:

  • No need to heat treat after machining
  • Can be used as supplied even in large dimensions

Powder metallurgical steels


Special materials subjected to vacuum refining or melting during at least one stage of manufacture.


Kunststoffformenstähle in ESU-Güte


Special property and/or achievement characteristics



Selection of product shape