For many years now, gas quenching has been the preferred process in the heat treatment of high-speed steels and hot and cold working tool steels.

With the development of separate gas quenching chambers, it is often possible to replace oil quenching with high-pressure gas quenching using nitrogen or helium for heat treating case hardening steels or other low alloyed materials.

Advantages

​​​​​​​The main advantages of high pressure gas quenching are reduced distortion which mostly helps to avoid hard machining steps and dry and clean parts afterwards. After gas quenching the parts surface is free from quenching media, dust or other residuals, which is the required condition for further process steps like coating.