Welding Stainless Steel Exhaust

Andy phillips shows how to weld exhaust pipe and the tools needed to prep the metal and weld it together.

Welding stainless steel exhaust.

Work done on a chevy s10 pickup truck. Ferritic stainless steel is the cheapest form of steel and hence it is favored for manufacturing automotive exhaust components. We had 98 2 mixture 985argon 2 oxygen i was a tig repair welder i used 3 32 filler wire you do not alot of heat for this metal. For thicker base pieces step up to 035 inch to 045 inch welding wire.

Its definitely not a good idea. Is it ok to weld stainless steel exhaust tubing with carbon steel mig wire. The widely used stainless steel is the type 304 stainless steel as they are also referred to as surgical stainless steel as it contains a maximum of 20 of chromium and 10 of nickel. We have proof right here.

Either way to get the best service and longest life out of a. For mig welding stainless steel a shielding gas mixture that s 90 percent helium 7 5 percent argon and 2 5 percent carbon dioxide is generally ideal. Most of the popular welding processes can be used but i prefer gmaw because it works well on custom exhaust systems for my high school students hot rods. For a corrosion resistant completed weld use one of the 400 series stainless steel wires such as a1490.

The answer to your first question is yes you can mig weld thin gauge stainless steel in a short circuit mode with compact type 120v or 230v input power mig welders see example in figure 1 the machine would have the same amperage and resulting material thickness capability with stainless steel as it does with carbon steel.