Quote:
Originally Posted by walfreyydo
Thanks for sharing.
My understanding is that these tubular manifolds are constructed of 321 stainless and require 347 filler rod or wire, as well as back-purging (because its stainless). If this is not done, it will just crack again.
I am curious when you mig welded this, if you used the above filler and back purging?
How long ago did you weld it and how has it held up?
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i used 316L wire with Argon/Carbon Dioxide gas- shot blasted crack surface. Nothing out of the ordinary on the weld. It has been a few months and no issues yet- I'll post again if it fails.