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The aeronautics industry is increasingly challenged to build aircrafts that are quiet, energy efficient and more environmentally friendly, while upholding the highest safety standards. Manufacturers need lighter materials, such as new alloys and composite and new technologies, to remain competitive.

Air Liquide draws on more than 100 years of experience in the fabrication and heat treat industries to develop specialized gases, equipment and technical services for a range of aeronautics applications. We supply gases such as nitrogen, hydrogen, argon and helium, as well as an array of high purity (99.999%) on-site gas solutions. ALNAT™, Air Liquide’s comprehensive metal heat treatment and cryogenic treatment solutions, offers a range of products and services designed to make your processes more efficient and optimize production costs while improving the overall quality of your products.


Select a step where Air Liquide intervenes in your value chain

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 cutting, 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.