ASME PQR to AWS D1.1 WPS
ASME PQR to AWS D1.1 WPS
(OP)
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.
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ASME PQR to AWS D1.1 WPS
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ASME PQR to AWS D1.1 WPSASME PQR to AWS D1.1 WPS(OP)
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.
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RE: ASME PQR to AWS D1.1 WPS
You should check the essential, supplementary essential, and non essential variables from both codes.
RE: ASME PQR to AWS D1.1 WPS
Whereas prequalified welding procedures may be used with both processes, except short circuiting transfer mode, why do you need to support the WPS with a PQR?
RE: ASME PQR to AWS D1.1 WPS
RE: ASME PQR to AWS D1.1 WPS
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...
RE: ASME PQR to AWS D1.1 WPS
The Engineer of Record can accept a PQR done in accordance with a different welding standard in support of a WPS for AWS work, but I find most of those engineers that do accept ASME documentation are unfamiliar with the differences between the two welding standards, i.e., ASME and AWS.
Best regards - Al
RE: ASME PQR to AWS D1.1 WPS
For the involved handle to manhole cover weld, the ASME IX WPS/PQR is more than acceptable from an engineering standpoint assuming that the manhole cover is weldable low carbon steel.
RE: ASME PQR to AWS D1.1 WPS
Best regards - Al
RE: ASME PQR to AWS D1.1 WPS
gtaw, you make some good points in your previous post, but this is an old issue. And I believe the example we have here is exactly that. There is a pressure vessel shop (or a shop that does most of its welding per ASME) and there are a few instances where they need to weld on something "structural" or non-pressure containing or outside of ASME scope. They have a perfectly good WPS, which, although doesn't meet the full AWS requirements, should be able to be used for production. Based on the minute and few diffences even you have pointed out, it doesn't make any sense to re-qualify a procedure from a manufacturing or cost sense - depending on the scope of work. Regardless of what you may think, most engineers do know the differences between the two codes. So it is up to them to decide if it is worth the cost and the effort. Now granted, if the shop gets more and more involved with work outside of the ASME scope, then yes, obviously, it does make sense. In this scenario, it makes absolutely no sense, and based on the OP's given information, they don't get into much structural work anyway. When it is all said and done, it is up to the end user to accept or reject the proposal of doing so, but, if someone told me that my ASME WPS wasn't acceptable to weld a handle on to a manhole cover, I would tell them to go pound sand. That would tell me right there that THEY are the ones without any welding or code knowledge.
RE: ASME PQR to AWS D1.1 WPS
Cheers...
RE: ASME PQR to AWS D1.1 WPS
RE: ASME PQR to AWS D1.1 WPS
I believe this shouldn't be an issue for you. If your customer does give you grief about it, I would suggest an AWS pre-qualified WPS as mentioned above (no PQR required). Your low carbon steel manhole cover will probably be listed in the materials approved in D1.1 for the use of such a procedures.