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Metal Fabrication
Select a step where Air Liquide intervenes in your value chain

Deep Cryogenic Treatment (DCT)

Air Liquide’s ALNAT™ DCT solution treats components through exposure to temperatures below 150 degrees Fahrenheit. Benefits of ALNAT DCT include increased resistance to wear, abrasion, pitting and spalling while reducing residual stress for a longer use life. The ALNAT DCT solution will help ensure a controlled atmosphere providing safety, efficiency and reliability.





Our ALNAT brand solutions include bulk gas supply, related gas handling equipment, and a range of services related to the generation, use and control of atmospheres. We provide process and safety audits to optimize the use of cryogenic and heat treatment furnaces and assist in troubleshooting. Additionally, we provide training to help ensure safe, smooth and efficient processes.


Our ALNATTM supply solutions will help you ensure a controlled atmosphere in terms of safety, efficiency, and reliability in heat treat applications, including annealing, brazing and carburizing, and also in deep cryogenic treatments.

Why choose us?

  • 01

    Diverse offer

    We offer gas cylinders in various volumes and concentrations and all associated equipment. We also supply bulk volumes and storage solutions, as well as on-site production technologies.

  • 02

    Focus on quality

    Air Liquide produces gases in a range of purities to meet your needs. We can analyze for specific impurities based on your request.

  • 03


    A global network of industry experts is available to support you in developing solutions to meet your unique challenges. Our teams have extensive experience and expertise in assembly, surface treatment and cutting techniques.

  • 04


    Air Liquide’s industry experts are backed by a global R&D network.