Welder Qualification ASME IX
Welder Qualification ASME IX
(OP)
Hi to everyone, I have a question about WPQ and WPS.
We are welding a pipeline 18", 7.92mm with SMAW+FCAW-s and the respective WPS.
The contractor is using a welder qualified not for the above WPS but for another one that just covers SMAW (they call it a repair WPS) and he is just doing the root. I think none of the essential variables is different, can they do that?
Thanks.
We are welding a pipeline 18", 7.92mm with SMAW+FCAW-s and the respective WPS.
The contractor is using a welder qualified not for the above WPS but for another one that just covers SMAW (they call it a repair WPS) and he is just doing the root. I think none of the essential variables is different, can they do that?
Thanks.





RE: Welder Qualification ASME IX
RE: Welder Qualification ASME IX
IN WPS What is range qualified for SMAW.
if your contractor is in that range will work ok.
if it is out of range no good.
stanly
RE: Welder Qualification ASME IX
The welder utilises a specific WPS for the welder qualification test and that then gives them a qualification range of parameters (as noted by metengr)that may encompass many WPS's.
No problem with what the contractor is proposing,
Cheers,
Shane
RE: Welder Qualification ASME IX
Thanks.
RE: Welder Qualification ASME IX
Why have you changed the electrode size ?
How do you know the parameters for the new electrode size are correct if they were not used in PQR qualification ?
RE: Welder Qualification ASME IX
One of the welders that is doing the root pass was qualified with another WPS, that one with different size rod. But all the essential variables were the same.
RE: Welder Qualification ASME IX
Gerald Austin
www.weldingdata.com
Greeneville Tennessee