Skip to main content
Automotive Value Chain
Air Liquide in the value chain

Neutral hardening

The hardening operation involves heating components above their phase transformation temperature and then quenching them in oil or salt baths, or in a specific gas quenching cell. This treatment results in a hard and tough martensitic or bainitic structure inside the components. Such operations can be carried out in a wide range of continuous or batch furnaces.



Our ALNAT solutions include bulk gas supply, related gas handling equipment, and a range of services related to the generation, use and control of atmospheres in industrial heat processing furnaces.