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.


Plastic mould steels in ESR quality


Special property and/or achievement characteristics



Selection of product shape