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Shielding Gas Help!

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  • Shielding Gas Help!

    I wouldn't say I'm a newbie, but I'm definitely not a professional welder. I'm working on a smoker (pretty cool one, actually), and I am running out of gas. I am MIG welding and don't want to switch to Flux Core, but the only other gas I have is straight Argon.

    My question is this can I MIG weld with 70S-6 and straight Argon on mild steel? Remember, this isn't structural. From what I've read, I'm just not going to get the best penetration with straight Argon. Is this correct?

    Let me know. Thanks.


    Lincoln 135 Amp MIG
    Ahp AlphaTIG 200dx
    Everlast PowerPlasma 50
    DeWalt DW872 Chop Saw
    Miller Elite

  • #2
    Argon will work in a pinch it makes a taller bead. But i wouldn't use it everyday...Bob
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab
    Salem, Ohio
    Birthplace of the Silver & Deming Drill


    • #3
      If you're not prepared to use a proper gas, then switch to fluxcore.

      Straight argon will produce a lousy weld with that smaller mig.

      Syncrowave 250DX, Tigrunner
      Dynasty 200 DX w/CM 3
      MM 251 w/30 A SG
      HH 187 Mig
      XMT 304 w/714D Feeder & Optima Pulser
      Dialarc 250 w/HF 15-1
      Hypertherm PM 1250 Plasma
      Victor, Harris, and Smith O/A
      PC Dry Cut Saw and (just added) Wilton (7x12) BS
      Mil Mod 6370-21 Metal Cut Saw
      More grinders than hands (Makita & Dewalt)
      Grizzly 6"x48" Belt Sander
      Access to full fab shop w/CNC Plasma & Waterjet
      Gas mixers (Smith(2) and Thermco)
      Miller BWE and BWE Dig


      • #4
        Both Bob and Sundown are try it, and judge for yourself...that's the only way you will know for sure.