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Best way to TIG weld stainless steel 1 mm thickness?

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  • Best way to TIG weld stainless steel 1 mm thickness?

    Hi guys what amperage setting is best for TIG welding 1.0 mm thick stainless steel? Any recommendations how to go about it? I'll be using a DC machine for this right? Thanks! Appreciate the help.

  • #2
    about 1 amp for every .001 thickness is good for tacking, fit it tight and tack it quick, you shouldn't need filler to tack if parts a fit tight, don't start the arc and build heat. Hit it quick and let off. You wont need full amp setting (in this case 40 amps) to weld just use pedal and stainless welds best when you pulse the heat as you weld. Try it out a little on a practice piece, you'll see.

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    • #3
      yes....DC

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      • #4
        All above good suggestions. When I do thin stainless I always have a .035" rod ready to dab. Sometimes if you have a slight gap, not clamped tightly or it opens up from the heat it will not fuse & a dab will save you from a hole. Depending what it is I tack every 1/2" or so & then fuse but still have a rod ready if needed. Material has to be tight with no air space to fuse.
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        • #5
          Best way to TIG weld stainless steel 1 mm thickness?

          Also I use backer, like thick copper if possible. Also helps pull excessive heat on thin SS.

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          • #6
            Best way to TIG weld stainless steel 1 mm thickness?

            Amperage (and difficulty too, for that matter) really depends on weld position and joint type. You will likely be in the 22 to 36 amp range.

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