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Calculating how much TIG rod for project?

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  • Calculating how much TIG rod for project?

    I have a TIG project, basics are welding DOM steel tube that is .065" wall, to itself, to 3/8" and to 1/4" steel. I come up with a generous estimate of 165" of welding to be done.

    Is there a formula to get a good idea of how much rod I will need for this? Or at least an educated guess?

    Looking for recommendations on what rod to use as well. I've been told make sure its coppercoated, but I don't know much more beyond that. I'm outsourcing the welding, just providing the rod.

    Much thanks for the help.

  • #2
    If........

    If the fit up is good I'd use 2" of rod to each inch of weld.

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    • #3
      Gunna be a lot of rod then...

      Any recommendation for type of rod?

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      • #4
        nah

        That's about twenty leaving room for you to drop it at the end :-) I'd use my standard Er70S-6 but some might prefer the -2 or -5 versions. I just like the way the -6 works for me on the Dynasty 200DX. If the fit is not good you could go through more rod but rod is the inexpensive part of this job and a lot will depend on the skill of who's tigging it. I always use a 3/32 tung on this material.

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        • #5
          Well, thats good to hear. Thanks for the recommendation, off to the welding shop I go.

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          • #6
            10-12 36" lengths of 3/32 filler should do the job.
            DrIQ

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            • #7
              Agreed

              I always use 18 inchers so I guess I should have been more specific.

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              • #8
                Thats good, should be nowhere near as pricey as I had thought then. Best part is the work is free

                Thanks again guys

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