Your application - our gases

Which gas is the right one for my application? How do I achieve particularly high quality in the weld seam? How do I cut metal effectively? What is the best way to preheat or straighten my components? Applications in the field of welding and cutting are probably the supreme disciplines for technical gases.

Welding and cutting - from oxyfuel to laser

Air Liquide has been working with partners from the metalworking industry for more than 100 years. We pass this experience on to our customers every day in the form of industrial gases, services or equipment. Because we know only too well: Especially the quality and productivity in the production of welding seams differs with quality requirements and the use of two, three or four component mixed gases. Industrial gases, know-how and their accessories therefore have a decisive influence on your results in the field of metal processing. Our brand gases ARCAL™, LASAL™, FLAMAL™ and ALNAT™ reliably meet the highest requirements from all areas of metal processing.

On the basis of this experience, we have developed welding shielding gases, pressure reducers, tapping points, bundle switching stations, safety templates and services with which you can weld, separate, coat, heat or perform low-temperature treatments better and more efficiently. Whether you use oxyfuel, MIG, MAG, TIG or laser processes. Use the technical gases that optimally support your application and lead to a reliable result. Our online gas consultant will guide you to the right process gas in just three steps.


This process has a long tradition in the field of metal processing. Autogenous processes are mainly used for gas welding and flame cutting, but also for preheating, heating and straightening of various metals. In the oxyfuel process, the gases acetylene and oxygen are mostly used.


Forming ensures the shielding of the seam root during welding with a shielding gas. The aim is to minimise or prevent tarnish and discolouration in the welding area. Only nitrogen or hydrogen mixtures are therefore used as forming gas. However, inert gases such as argon or nitrogen can also be used for forming. Learn more >>

Metal active gas welding

Metal active gas welding (MAG) is a welding process in which mainly active gases such as oxygen, carbon dioxide or hydrogen are used with argon as the base gas. In this process, the filler material is fed as a wire electrode from the coil to the torch. A chemical reaction takes place on the weld metal. Further information about MAG >>

Metal inert gas welding 

Metal inert gas welding (MIG) is a welding process using inert gases such as argon and helium. The shielding gas has the task of shielding the resulting arc from the surrounding air. In the MIG welding process, the filler material is fed from the coil to the torch as a wire electrode. This process is usually used for welding non-ferrous metals such as copper, aluminium, aluminium alloys or titanium. More >>

Tungsten inert gas welding

Tungsten inert gas welding (TIG) is a welding process in which inert or quasi-inert gases such as argon or helium and their mixtures are used. The advantage of TIG welding is that particularly high qualities can be achieved with this process. TIG is a manufacturing process with a non-melting tungsten electrode. The filler metal is fed via a wire. The protection of the melt is ensured by inert gases such as argon, helium and their mixtures. More information >>


Laser welding permits more targeted heat input, less distortion and a higher welding speed than conventional welding methods.

Laser welding usually requires industrial gases such as argon, helium, carbon dioxide, oxygen and nitrogen. In laser welding, helium and helium-containing shielding gases with argon and/or oxygen content are used.

Complete supplier Air Liquide

We reliably supply welding gases as well as shielding gases such as argon, oxygen, nitrogen, carbon dioxide, helium or hydrogen and their gas mixtures in various forms throughout Germany. Filled in steel cylinders as cylinder gas, in tanks or directly by production on site. We also offer you a large selection of reliable equipment, such as pressure reducers, hoses and much more as accessories for your welding machine.

Buy gas and equipment directly online

Buy your gases or gas pressure regulators directly online and have them delivered quickly, safely and reliably, or pick up your gas pressure regulator from us.

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