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Hi VPL, You're asking how much trust? I'd say not that much! Only to those who give references like you, Steve and Stanweld. I may just be starting but I know a few things, I do some research and it's more of just a confirmation that result of my research will be parallel to answers people give...

Can a 70/30 CuNi filler rod (GTAW) be use to weld a 90/10 CuNi pipe/tube? Some people say it can, but I want a more trusted opinion. If it can, what are the ideal parameters e.g. voltage, amps, wire size etc. Cheers....

Thanks for more clarification DVWE, the cover of the manhole/manway is of low carbon steel. Cheers...

Hi Stanweld. We have submitted our ASME IX WPS for approval, to use it for welding flange to pipe and handle to manhole cover, and they require a AWS D1.1 on the handle, that's all. Thanks for being so helpful...

Hi There, Would 1 joint tensile test, 1 face bend, and 3 impact (Charpy) test, satisfies the mechanical test requirements of a PQR to ASME IX/ASME B31.3? Thanks..

Can an ASME IX PQR be use to write AWS D1.1 WPS? Or can an ASME IX WPS qualifies to AWS D1.1? Process used are GMAW and FCAW.