I have been making myself exhaust systems for a few years now. but on my last system I have noticed what looks like rust. Its only happening in the heat effected areas next to the welds. Is there something I am missing? I try to use as little heat as I can and back purge with argon.
Here is a picture, its looks better in person but this gets the problem across. The parts looked great for the first few months.
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Thread: Trouble with 304 exhaust
09-10-2013, 09:54 AM #1Junior Member
- Join Date
- Sep 2013
Trouble with 304 exhaust