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Metals
Air Liquide in the value chain

Melting and casting

We supply industrial gases to ferrous and non-ferrous foundries for casting applications, including tundish inerting, caster shrouding, shell casting, investment casting and sand casting. Air Liquide’s patented (Expanding Gas Air Liquide (EGAL)  process uses liquid cryogenics, argon or nitrogen, to reduce interactions between molten metal and atmospheric gases such as oxygen, nitrogen and water vapor during air melting operations. This SPAL technology allows steel manufacturers to produce castings with fewer defects, enhanced mechanical properties and lower rejects.

Air Liquide offers SPAL, our technology family of inert blanketing processes. These patented processes include EGAL, Surface Backfilling Air Liquide (SBAL), and Vapor Ring Air Liquide (VRAL). Contact us to learn more about these patented processes. 

Gases

Why choose us?

  • 01

    Industry leader

    Air Liquide is a leading global supplier of industrial gases that are essential to the metals industry, such as oxygen, nitrogen and argon.

  • 02

    Customizable solutions

    Our teams will work with you to identify the most appropriate and cost-effective gas supply mode based on your purity, flow, volume and safety requirements

  • 03

    Reliability

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

  • 04

    Global presence

    Air Liquide’s global network of metals industry experts serve millions of customers worldwide 

  • 05

    R&D support network

    We rely on our global network of application experts, engineering and research and development teams to provide the optimum solution for a given need