15 years ago
I will be welding up an exhaust system using mufflers and cats from a
1996 Mercedes Benz SL600. The material for the mufflers and cats is
belived to be stainless but the alloy is unknown.
These parts will be welded to 304 stainless steel tube. It is most
likely that the parts are either 304 321 or 409 stainless. 409 is the
american exhaust system standard.
Which TIG wire do you guys recomend for this unknown application or is
there a way of finding out which stainless it is.
Generally 304 to 304 is welded with 308 wire
304 to mild is welded with 309
321 to 321 is welded with 347
And I have no idea what is used with 409