ASME IX Welder Qualification
ASME IX Welder Qualification
(OP)
Hi,
I require to qualify submerged arc welders to ASME IX using process single wire (121) and tandem wire (123. Although the process and filler will remain the same does changing from single wire to twin wire become an essential variable. If qualified on twin wire does it automatically qualify him on single wire?
Thanks
I require to qualify submerged arc welders to ASME IX using process single wire (121) and tandem wire (123. Although the process and filler will remain the same does changing from single wire to twin wire become an essential variable. If qualified on twin wire does it automatically qualify him on single wire?
Thanks






RE: ASME IX Welder Qualification
But it looks to me like the heat input, preheat, and possibly polarity would vary, which are all supplementary essentials.
RE: ASME IX Welder Qualification
RE: ASME IX Welder Qualification
RE: ASME IX Welder Qualification
RE: ASME IX Welder Qualification
QW 300.1 limits welder qualification based on essential variables, and gives no mention of supplementary essential variables. I would not think the welder would have to qualify for single electrode, but I would be curious to hear if anyone has a more definitive answer.