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Welding Gas for Zinc Annealed Steel

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    Welding Gas for Zinc Annealed Steel

    Doing some structural work on a chassis with zinc annealed 1.3mm steel.

    I've never worked with this stuff. I have a MIG that needs gas, so now is the time to get some (if they still deliver) for this purpose. I've done some reading on various MIG manufacturers web sites and am now even more confused.

    Argon mix (2-5% CO2) or do I nned something more exotic?

    I'm also aware that the zinc vapourises before the welding arc gets to the metal. This is going to ge a PITA and I'm expecting a lot of splatter. Any advice or tips from others who have MIG welding this stuff?

    Thanks

    #2
    Regular type gas and sand the zinc coating off with a flap wheel?

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      #3
      Probably argoshield light but if you can't get it wouldn't stress too much and just use argoshield.

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        #4
        It welds better than gal, regular argon/co2 mix will be fine.

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          #5
          Thank you kindly for the info lads. Ordered the Argon/CO2 mix. I had to get it delivered as you can't carry a pressurised cylinder in a car over here.

          22 km away, Australia Post courier. I expect delivery in 2022.

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            #6
            How do you anneal with zinc?

            Soaking in white (cheap) vinegar is a good way to get zinc off, if you can find any in the current state of affairs.

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