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  1. ltan

    AWS prequalified WPS for 3/4" stainless steel

    I'm tying to prepare a prequalified WPS in groove weld flat position with complete penetration using GTAW. I've checked AWS 1.6 chapter 3 table 3.1 but I'm confused about what "Mean plus minus 25%" is. Is there an exact "Mean" value published somewhere? Any help will be most appreciated.
  2. ltan

    Alum Horz Groove Weld per AWS test

    We have to write up and qualify an AWS WPS for 1" 5086 alum plate groove weld(CJP) in horizontal position GMAW. Done 2 test plates (only transverse side bends) but both have unacceptable (>1/8") cracks. Most cracks are right at the base metal / weld metal interface. Details: filler is 5356 1/16"...

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