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  1. #1

    Default Can I mig weld stainless steel


    I am pretty new, and wanted to see if I can Mig Weld stainless steel. Are there any tricks and can anyone point me in the direction of some instructions on how to setup for it?


  2. #2
    Join Date
    Mar 2008
    Baltimore, Maryland


    What machine do you have? What type of stainless are you welding? You must use tri-mix and it does cost a lot more then 75-25 mix. Plate, pipe, thickness. It's easy to weld with the right set up. IMHO.

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  3. #3

    Default Over my head!

    I think I am over my head on the stainless idea. I am running a millermatic 172 setup for steel. I think it is a 75%/25% argon mixture.

    I was told to use a flux core wire to make my life easier, and was hoping I could do the same with Stainless.

    I am only looking to weld small decorative items, like a 2'x3' fountain with pretty thin metal. I also thought about using it for highlights on a gate I am building.

  4. #4
    Join Date
    Jun 2008
    davie, fl


    just switch your wire and weld if you dont have tri mix try welding with 25/75. stainless steel welds just like steel. if you arent sure just try it on a couple pieces of scrap. your machine is fine and has the same capacities for stainless steel as for steel.

  5. #5
    Join Date
    Aug 2006
    Browns Valley, California


    If you don't care about the welds rusting, just weld it with ER70S-6 and C-25. If you want to keep the rust away, I'd get a small roll of ER309L and still use C-25.

    I've welded SS with C-25, and it turns out OK for small stuff. If I were going to get into serious SS fabrication, I'd probably want the helium/argon/COČ tri-mix, but I'd sure run a coupon or two first before I bought another gas cylinder!

    ...from the Gadget Garage
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  6. #6
    Join Date
    Mar 2007

    Default gas mix

    has anyone tried argon/ 2% co2 ?
    as per Ed's suggestion:

    I'd be curious to see what the welds look like from a mig (like mine: 210 miller)



  7. #7
    Join Date
    Sep 2005
    Salem ,Ohio


    Quote Originally Posted by jackflash View Post
    has anyone tried argon/ 2% co2 ?
    as per Ed's suggestion:

    I'd be curious to see what the welds look like from a mig (like mine: 210 miller)


    Nope never tried it. I don't need anymore bottles and i don't do that much of it. But if i had a mixer that would be pretty easy since i have those bottles...Bob
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab Salem, Oh 44460
    Birthplace of the Silver & Deming Drill
    1999 MM185 w/185 Spoolgun,1986 Thunderbolt AC/DC
    Spool Gun conversion. How To Do It. Below.

  8. #8
    Join Date
    Feb 2012


    You just responded to a question from '09.

  9. #9
    Join Date
    Aug 2004
    Milan Michigan


    Dave Derag, Alot of counters are mostly made out of 304 stainless, I use 316 wire which is acceptable.

    Nfinch96, You might have some problems on that thin stainless, If your going to try to mig it I would like to suggest .023 wire.

    Remember that your welds need to be smooth so food does'nt get caught in the weld ripples which can hold bacteria.

    I personally like to tig weld all restauarant stainless and buff it to a #4 finish to match existing.

    Unfortunately what happens about 20% of the time is the restarant tries to go cheap and I've had guys braze the stainless, arc weld it and mig weld it and I get the call to fix it because the health department says its not good enouph.

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