A great help in welding processes
Helium is an inert gas that is rarely used on its own. It's very light and has a high ionisation potential, which allows to work with extreme welding parameters.
Helium is normally used in mixture with Argon and other active gases. As such, it increases the heat input on the process, allowing to increase the productivity and the protection of the welding bath.
Suitable for all electric arc welding processes (TIG / MIG / MAG) but also plasma and laser, in particular on materials such as aluminum and copper that quickly disperse heat.
-269°C
Boiling point
2,3720 J/mol
First ionisation energy
0,138
Relative density
Related gases
Acetylene for the metal fabrication industry
Acetylene is a fuel gas which, combined with Oxygen, generates a very high flame temperature and an atmosphere that can be used in braze-welding and other oxy-fuel technologies. Its instability is resolved by storing it in special cylinders that contain a porous mass that is first saturated with a solvent (Acetone or DMF). The Acetylene is than dissolved in the solvent to make it stable and safe to use.
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Argon for the metal fabrication industry
Argon is one of the most important gases for the metal fabrication industry. It is colorless, odorless, non-flammable and non-toxic, which ensures that the gas can be used on a very large scale. Argon is generally considered to be one of the best shielding agents, being present in the air. In addition, it is a very favorable gas to maintain the stability of the arc.
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Carbon Dioxide for the metal fabrication industry
Carbon Dioxide is the active gas par excellence, especially for carbon steel welding. The energy, coming from the electric arc, separates the Carbon Dioxide into Oxygen, the true active gas in the process, and Carbon. The carbon replaces the gas contained in the steel, which is lost in the welding process, leaving the chemical composition of the welded joint unchanged.
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Hydrogen for the metal fabrication industry
Hydrogen is a combustible and very light gas that has the characteristic of binding easily with Oxygen. For its deoxidizing function and the contribution of energy it can give to the welding process, Hydrogen is used, in small percentages, in the TIG and MAG welding processes.
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