Vacuum hardening

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Vacuum hardening is a form of treatment that takes place in chamber furnaces at a set pressure (10 to -3 Bar) on steels for tool steels, die steels and various components with subsequent reheating up to 1250°. The process can be subdivided into the following phases: vacuum treatment, initial convection reheating, continuation of the vacuum reheating until the transformation temperature is reached and subsequent cooling with insufflation of nitrogen until a pressure from 2 to10 bar. This is done according to the material and the technical specifications required of the product. This process is used by the world’s leading steel plants, underlining the exceptional advantages for any type of component.