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  1. studaddy

    use of pqr without essential variable

    Thanks for the added info. That was what i neeeded to know if i was overlooking something or had tunnel vision. Greatly appreciated
  2. studaddy

    use of pqr without essential variable

    Please explain your understanding of ASME SEC IX, From what i have read the backing gas is an essential variable that was used to qualify the procedure but is now being replaced with the flux. Am I looking at it wrong?
  3. studaddy

    use of pqr without essential variable

    Thanks for the info. You must be spying on me because i have had several run ins already with piping not welded to code and as I am the only CWI in the shop I refuse to put my name on them. I already had my mind made up just wanted to know if it is allowed ANYWHERE to substitute flux paste for...
  4. studaddy

    use of pqr without essential variable

    we have a pqr for stainless 308 l using the stt process with a backing gas [open butt pipe] the bosses son refuses to use the argon that was used to qualify and wants to use solar flux instead . my position is we have to qualify a new pqr and our welders since we are deleting an essential...

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