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Gas tungsten arc welding use helium gas in application?

In: Chemistry, Mechanical Engineering, Welder [Edit categories]

Answer:

Most GTAW setups use Argon. Helium was first used because it was developed primarily to weld aluminum and Helium being a lighter gas allows more heat transfer to the metal. But it is more expensive so most companies (I have worked for) use Argon.

First answer by Jimstoys39. Last edit by Jimstoys39. Contributor trust: 4 [recommend contributor ]. Question popularity: 1 [recommend question].

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