Hardening

Hardening process consists in heating the material over AC3 (austenitic status for steel) and cooling with high speed. The purpose is to obtain martensitic structure in the material that will give an increasing in hardness (for steel). Can be successfully applied for alloyed steels. Another type of process of hardening is for stainless steels and aluminum alloys, because after heating and fast cooling we will freeze the structure obtained after heating with a low value of hardness good for mechanical work, resilience.

Hardening can be done with or without controlled atmosphere in the following furnaces: