Tri Mix Welding Gas For Stainless Steel. Tri Mix gas 90 Helium 75 Argon 25 Carbon Dioxide protects and shields your weld. The mix is 90He75Ar25Co2 the small amount of active gas Co2helps with the weld puddle flow and is designed for short circuit welding of stainless steel.
Tri mix gas for stainless steel MIG welding. Hobbyweld 5 is a tri mix gas and has 5 CO2 and 2 oxygen. Bail has the best mix at 90he 7 12ar 2 12co2 or some dealers stock a 90-8-2.
The addition of helium to argon increases the available energy to the weld pool making it more fluid.
Since the 1960s and still as I write this in 2019 thanks to Union Carbide Linde - Praxair many North American and European weld shops have purchased this Helium - Argon CO2 tri-mix gas for MIG welds on stainless gage applications. Prepare the primary gas shielding blend. Welding of stainless steel is typically done with mixture of Argon and Carbon Dioxide gasses that can be as low as 2 carbon Dioxide to as high as 25 carbon Dioxide. MIG Welding Gas.