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Automotive Value Chain
Select a step where Air Liquide intervenes in your value chain


Stainless steels, carbon steels and non-ferrous materials are annealed to trigger the relaxation of internal stresses and give a softer product. Our ALNAT™ atmosphere solutions for annealing are mainly based on mixtures of nitrogen, hydrogen and hydrocarbon or nitrogen and cracked methanol. Benefits include improved safety, reliability low-maintenance operation and low capital cost.



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