How To Mig Weld Stainless Steel Sheet Metal

However if you are dealing with materials that are 18 gauge or thicker one should be able to use 030 inch welding wire.

How to mig weld stainless steel sheet metal. With these materials use a tri mix gas 90 helium 8 argon and 2 co 2. As a rule when mig welding sheet metal never use a body filler metal that is thicker than the base metal. This process is performed by using a non disposable tungsten electrode with a tig welder for striking up the arc. To weld sheet metal with solid wires use electrode positive ep or reverse polarity.

Place the stainless steel metal over the table and hold firmly using the clamp. Just make sure you use the right gas mixture wire and tweak the voltage little higher than you would normally use for regular steel. However when working on large sheets of metal you will need more bracing. It is recommended that a welder should use 023 or 024 inch wire for light gauge sheet metal work.

Next join the metals using mig welding. When welding 304 stainless steel er308 er308l and er308lsi wires are compatible but for welding 316l stainless you need a 316l wire. This process also uses shielding gas against contamination but you can weld thinner metals more efficiently with it.