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mig stainless steel

countryss

Well-known member
Joined
Feb 26, 2010
Messages
350
Location
New York
I got to weld in piece of steel to replace a pitted piece of stainless. it is not anything structural just cosmetic. if this is possible can i mig it or will the two metals oppose?
 
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gte718p

Well-known member
Joined
Mar 12, 2009
Messages
4,004
Can be done, but it will not be pretty nor stainless anymore.
 

iagsxr

Well-known member
Joined
Jan 10, 2010
Messages
1,510
Location
Vinton, Iowa
My local Farm Fleet type store keeps stainless wire in 2 lb. rolls. My welder won't take those little spools so this spring I ended up welding a stainless motor plate w/regular mig wire. So far it's held up fine.

Told a buddy about it after the fact. He said he's in the same boat so he keeps a little roll of stainless around and just pulls what he needs off the spool, strings it out and the wire feeder'll pull it through. Duh for me.
 
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toxicz28

Well-known member
Joined
Sep 23, 2006
Messages
738
Location
NY
Yes it can be done. Use 309L wire for the dissimilar metals and a tri-mix sheilding gas.
 

atari

Well-known member
Joined
Dec 20, 2008
Messages
555
Location
Carroll, Ohio
It just contaminates the stainless with carbon and makes it prone to rust. I do it all the time when Im building work stations at work. Most of the scrap we have laying around is 316/17-4 and the benches are usually mild square tube. Any tabs or hooks end up to be stainless. If the stuff is gonna be outside or in a salty environment I would be kinda concerned unless you could paint it. Inside though, run it and forget it.
 

Ben Iv

Well-known member
Joined
Jul 23, 2010
Messages
212
Location
Oklahoma
We used to weld 304 stainless to carbon with 309L fluxcored wire with 75/25 mixed gas with no problems. And the welds looked great.
 
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