Firstly tig welding has zero tolerance of dirt oils paint and rust.
Tig welding stainless steel exhaust pipe.
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 ideal for doing weld exhaust pipe properly.
You can use this technique to weld exhaust pipes made from sensitive alloys like stainless steel.
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.
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 instead of automatic wire feeding tig systems use a rod that you have to melt into the seam with a hot arc.
Those of you working on stainless steel exhaust pipes a dc current tig welder can be an excellent choice.
How to weld exhaust pipe with tig welder.
The preferred method for high purity food grade stainless steel is an autogenous tig square butt weld.
Your base surface should be completely free of oils rust paint and dirt.
In particular this technique is used for welding exhaust pipes made from alloys such as stainless steel.
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.
When tig welding exhaust pipe care must be taken.
The first part is cleaning the tubing and ensuring that no residues are left.
However you must take extra precaution to tig weld your exhaust pipe.
The magnet stuck to the mig weld strongly letting me know for sure that the weld was carbon steel.
Hard to use during welding.
So first thoroughly clean the tubing and ensure no dirt or oil residue is left.