Dear,
Regarding point 2, as you have said,
The tack welding is going to be removed.? so the welder may or may not be qualified.? Kindly suggest.
Point 2-As per code you need to qualified welder for tack weld also because it depends whether tack become part of welding aur you are going to remove it also material, service conditions of equipment.
BR
Dhanabal Jalachandran
On Mon, Aug 25, 2014 at 12:14 PM, Mohit Aggarwal <aggarwalmohit05@gmail.com> wrote:
Dear,
Point 1 If a welder is qualified in CS for GTAW process then he is qualified for SS with gas backing Argon because for GTAW process deletion of gas backing is essential variable if you carefully go through CODE and for GTAW filler wire SS and CS
both falls in F NO 6 AS given in code. So CS qualified welder cam make weld in SS and for P no welder is qualified to weld in P1-P15, P34, P41-P43 etc. As per code.Point 2-As per code you need to qualified welder for tack weld also because it depends whether tack become part of welding aur you are going to remove it also material, service conditions of equipment.
Point the 3-If both codes requiement filled and after client approval welder is qualified.
Best Regards,
Mohit Aggarwal.On 25-Aug-2014 2:10 PM, "Dhanabal Jalachandran" <dhanabal.jalachandrann@gmail.com> wrote:
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
RegardsDhanabal Jalachandran--
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Regards
Dhanabal Jalachandran
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