Argon gas is a chemical element with Symbol Ar, and one of the noble gases. Argon is also the 3rd most abudant gas on earth. Argon is most commonly used as an inert shielding gas. Argon is Colorless, odorless, Non-Flammable, and Non-Toxic.

Argon is perticularly important for the metal industry, being used as an inert gas shield in arc welding and cutting. Other uses incude non-reactive blanket in the manufacture of titanium and other reactive elements and as a protective atmosphere for growing silicon and germanium crystals.