The inert gas par excellence
Noble gas, 1.38 times heavier than air, has a low ionization potential, so it can facilitate the formation of an electric arc. Argon has a tendency to concentrate penetration of the weld bead into the base material. It also offers a good influence on the stabilization of the electric arc.
- 186 °C
Boiling point
1,52 J/mol
First ionisation energy
Low ionization energy, simple to create electric arc.
1,3797
Relative density
More heavy of air, good protection in each positions.
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Related Gases