Welding Stainless Steel

Cars, trains, and airplanes: all of these have bodies manufactured from stainless steel. Welding is of course the  magic that joins metals together into the functional, durable frames these vehicles need. With the increasing availability of stainless steel, you’ll want to master this welding so you can stay at the forefront of your profession. To get the right welding equipment you’ll need to weld stainless and other metals, visit Sidney Lee Welding Supply store in Atlanta or any of the four neighboring cities we serve in Georgia.


Stainless steel is an alloy of iron with chromium, and it comes in different varieties based on the proportions of these. Each has its own properties, but all will be corrosion-free. Because of the differences in how elements conduct heat, each variety will have its own weldability. In the same way, each will need to be welded by use of a different kind of welding machine, shielding gas, and joining metal. The basic distinction between types of stainless steel is between austenitic (which adds nickel to the alloy blend) and ferric (which has only the chromium and iron metals). So when choosing the right welding gas for your Georgia metal shop, be sure to know your welding supplies and where to locate the best of them.


Fortunately, the pros at Sidney Lee Welding Supply know how to expertly mix the right kinds of gas for the kind of welding job at hand. Here we’ll use the example of various kinds of Arc Welding to give an overview of the right gas mixture for the stainless steel weld. For welding austenitic stainless steels for the highest quality production, blended welding gas of carbon dioxide with either argon or oxygen can be effective. For less oxidation, using a mixture without oxygen will help achieve that welding goal. Likewise, gases with lower CO2 content will lower the amount of carbon added into the welding mix.

You’ll probably be welding the ferritic kind of stainless for your cheaper jobs that nonetheless need to resist corrosion, such as auto exhaust fixtures. For Gas Metal Arc welding, the right blend of argon gas with CO2 gas will get the job done for this application. If you’ll be utilizing a flux-cored wire arc welder with austenitic steel, higher content CO2 welding gas can work well. Gas tungsten arc welding requires more argon gas in the blend for appropriately shielding a weld of austenitic stainless steel. For these high-end welding applications that require the best quality appearance, the welder may choose to blend argon gas with hydrogen in order to further reduce the effects of oxidation.


So whatever the welding job you are on, you can depend on the decades of experience that Sidney Lee Welding Supply brings to the science of combining welding gas throughout the Atlanta region of Georgia. Visit our stores in either Hampton, Conyers, Macon, Douglasville, or Atlanta, Georgia to find the right gas for your weld.