Why is Nitrogen used in welding? Which gases can be used in welding instead of nitrogen?

Question

Accepted Answer

Nitrogen is used in welding to prevent oxidation and improve weld quality.

Nitrogen is an inert gas that does not react with the metal being welded, preventing oxidation and contamination.
It creates a protective atmosphere around the weld, reducing the risk of defects and improving the overall quality.
Nitrogen can be used in various welding processes such as TIG (tungsten inert gas) and laser welding.
Other gases that can be used in welding include argon, helium, and carbon dioxide.
Argon is commonly used in TIG welding, helium is used for deep penetration welding, and carbon dioxide is used in MIG (metal inert gas) welding.

Accepted Answer

The nitrogen acts as a shielding gas and allows for a contaminant-free weld with less smoke, which creates a stronger weld.

Accepted Answer

Nitrogen is used in welding to stop oxygen and air from entering the fused metal while welding.

Nitrogen can be replaced with argon, helium and carbon dioxide.

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