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(brand for welding gas)

Simply high-performance welding gases

Air Liquide provides 4 ready-to-weld argon mixture solutions covering all welding application needs. Each mixture is designed to be reliable and simple, yet high-performing.


ARCAL™ 1 is our primary high-quality shielding product for most welding situations. These include TIG and plasma welding of all materials such as titanium, MIG welding of aluminum and copper alloys, and universal root shielding of all materials. Argon with 99.99% purity ensures reliable integrity of the weld bead, making ARCAL 1 the pure gas solution for your arc welding needs.


ARCAL™ 12 is the simplest, most efficient gas mixture for all stainless steel MAG welding situations. It is carefully selected to match chromium – the key component of steels for corrosion resistance. From household appliances to chemical vessels and pipes, for both austenitic and ferritic stainless steels, ARCAL™ 12 offers brilliant welding performance with a clean weld aspect.


Expertly mixed for high-travel speed and high-deposition rate MAG welding of carbon steels, ARCAL™  21 is the essential arc welding gas when weld time is a critical factor and is ideal for automatic and robotic applications. Highly adaptable with low fume and spatter emissions that reduces post-welding operations, ARCAL™ 21 makes it an obvious choice when high productivity is needed without sacrificing quality.


ARCAL™ 5 is our most powerful ready-to-weld solution for MAG welding of heavy carbon steel structures. From earthmoving and agricultural equipment to bridge building and ship modules, ARCAL™ 5 was engineered with heavy use in mind. Whether the surface is oxidized or contaminated, gapped or mismatched – it is extremely tolerant to preparation. ARCAL™ 5 is ready for your toughest and most challenging welding applications.

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Pure and stable, our gases and mixtures are compliant with ISO 14175 and AWS-A5.32 standards and are strictly prepared to reach the highest standards and packaged to be handled safely.

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Related supply modes

For users of relatively larger volume of gas, we offer safe and reliable bulk products which are produced and liquefied in plants and delivered directly to customers’ cryogenic liquid storage vessel by insulated cryogenic trucks.


Building 18, No. 1515 Gumei Road, Shanghai 200233, P.R. China