Argon is a very common gas used in welding because it is both inert, protecting the molten metal from impurities in the atmosphere, and heavier than air, keeping it “on the weld”. Carbon dioxide is also very common, and it utilized to assist the weld to penetrate deeper into the parent metal. read more
It is used in processes where flux is not used, such as Tig (tungsten inert gas) welding, or in MIG welding. It can also be used in combination with flux in certain circumstances, for example when using flux core MIG wire you may want to also use argon in some circumstances. read more
Argon Carbon Dioxide blends are used for all kinds of structural steel, farm implements and machinery. Lower levels of CO2 can be used for pulsed arc or spray arc welding, while higher levels20% are used for short arc welding and the shielding of some flux-cored wires. read more