Looking for opinion on 'tig' welded exhaust (1 Viewer)

[HarryHarrison]

Hey all, so 10 years ago I got a stainless exhaust that was meant to be tig welded. My joints are rusting way faster than the exhaust. Do you think the guy might have welded it with mild steel wire?

 

[Malleus]

Maybe, but what caused the material failure was poor material. All stainless steel is not created equal. Some isn't even stainless.

Here's a little bit of info on the topic: Ulbrich stainless steel

 

[Nardulli]

Hey all, so 10 years ago I got a stainless exhaust that was meant to be tig welded. My joints are rusting way faster than the exhaust. Do you think the guy might have welded it with mild steel wire?

View attachment 3986491

Stainless comes in many forms. 316 is best for exhaust. 304 or less and right there’s what you get. He almost certainly used a mild steel rod. The weld area will likely corrode faster than the stainless steel base metal because mild steel filler lacks the corrosion-resistant properties of stainless steel. This is especially problematic in environments exposed to moisture, chemicals, or high temperatures.

 

[Themcfarland]

All accurate info. Has he said a much you could have hit it with galv paint or some other type to keep it from happening. It doesn't look as if it was even 304. Tbh it looks cheap . I didn't look where ya are located but even on the coast it shouldn't have done it that fast