Skip to main content
Air Liquide in the value chain

Heat treatment

Air Liquide’s extensive technical knowledge of the heat treatment processes, coupled with our safe, reliable and customized gas solutions, will help you optimize your operations and manage costs. ALNAT™ is Air Liquide’s dedicated offer for heat treatment applications, including the delivery of gases and gas-handling equipment as well as a range of services relating to the generation, use and control of atmospheres in industrial heat-processing furnaces.


In addition to industrial gases for heat treatment applications, our Scott™ brand specialty gas mixtures are used specifically to modify the structure characteristics of steel, such as hardness and flexibility. We engineer hydrogen gas mixtures in a variety of balances and packaging options for steel and heat treatment.

Equipment for industrial gas

Equipment for specialty gases




Why choose us?

  • 01

    High quality gas solutions

    Our gases are compatible with new lightweight composite materials used in the fabrication of components and the upkeep of aircraft.

  • 02


    Air Liquide gas solutions are reliable, reproducible and in compliance with stringent and ever-evolving regulations.

  • 03

    World-class expertise

    As a global company with an international network of experts that specialize in heat treatment, welding and curing, Air Liquide is ready to support your development and innovation.

  • 04

    Sustainable solutions

    We are deeply committed to sustainable development. Our solutions for the aeronautics industry have been developed with the environment and regulatory compliance at top of mind.