Those of you working on stainless steel exhaust pipes a dc current tig welder can be an excellent choice.
Tig welding stainless steel exhaust pipe.
Since then he has used the gas tungsten arc welding gtaw aka tig process to produce an impressive collection of eagles dragons dinosaurs and more.
However you must take extra precaution to tig weld your exhaust pipe.
When tig welding exhaust pipe care must be taken.
So first thoroughly clean the tubing and ensure no dirt or oil residue is left.
Before i decided how to weld the header i used a magnet on the weld as well as flanges and bung to learn that the flanges and bung seemed to be carbon steel but those welds were holding up fine since they were tig welded with stainless wire.
Tig welding is traditionally used for welding stainless steel tube and pipe and remains the optimal solution for extremely high purity applications on tube or pipe at or below 6 inch diameter and schedule 10 wall thickness.
The preferred method for high purity food grade stainless steel is an autogenous tig square butt weld.
Kevin stone is a senior fabricator who began applying his welding and drawing skills to the creation of massive stainless steel sculptures back in 2005.
The first part is cleaning the tubing and ensuring that no residues are left.
How to weld exhaust pipe with tig welder.
Firstly tig welding has zero tolerance of dirt oils paint and rust.
In particular this technique is used for welding exhaust pipes made from alloys such as stainless steel.
Your base surface should be completely free of oils rust paint and dirt.
You can use this technique to weld exhaust pipes made from sensitive alloys like stainless steel.
You can perform welding on stainless steel mild steel titanium aluminum exhaust pipes.
However instead of automatic wire feeding tig systems use a rod that you have to melt into the seam with a hot arc.
Tig welders are similar to mig in that they need a supply of shielding gas connected to the welder.
The magnet stuck to the mig weld strongly letting me know for sure that the weld was carbon steel.