[MW:21685] Welder Qualification

Gent's,

Kindly need your advice to clear one issue based on Welder Qualification.? These questions were asked to me yesterday in Aramco Interview.

• If a welder is qualified with CS, can he weld SS.? ( i answered he cannot as F4 and F5 doesn't allow as per ASME Sec IX), but the interviewer told me it can be welded in GTAW with some kind of Gas i forgot the name of it. but i have gone through all the reference code i dont find any as P number and F number are essential variable.
  

• Welder requires tack welding qualification in ASME Sec IX or AWS D 1.1.? As per ASME Sec IX all the welders need to be qualified. As our company manufactures only Tanks and Vessels not much involved with AWS D 1.1, is there any applicable stuff where specifically welder needs to be qualified for Tank welding if he is not qualified welder.??

• If a welder is qualified with ASME Sec IX, can he weld the jobs with the code based on AWS D 1.1.? I have answered yes it's possible as the requirements need to be followed, i.e., Essential variable, Client approval as per AWS D 1.1 Clause 4.2.2.1

 

Regards

Dhanabal Jalachandran

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