Re: [MW:18860] Welder Qualification for Hot-Tapping

Dear Mr. Anil

Thanks for your valuable reply. Please heck the below comments

1. Our welders are qualified in 2" SCH 160 pipe, so the qualification range is acceptable for this job.

2. the tapping line is of 2" pipe to be welded on a 24" dia header, and it is very difficult to qualify them in SMAW on a 2" pipe.

Look forward your valuable reply.

Regards, 

LALU R.P

On Sat, Oct 5, 2013 at 2:10 PM, jaya anil <nethalaanil@gmail.com> wrote:

Your welders were already qualified in GTAW + SMAW.

1)  Now just verify the dia in which your welders were qualified,(his qualification range is covering 2"dia )

2)  As welders were qualified in ,Multi process , verifiy the SMAW thickness range of their qualification. whether it is matching with your job requirement.

If above 2 points were matching there is no need of qualifying again, if not you have to qualify them again to meet the Code requirements.

On Fri, Oct 4, 2013 at 1:27 PM, Lalu r p <lalucpt@gmail.com> wrote:

Dear Experts, 

We have a Hot-tapping Job of 2" set-on branch on 42" & 24" Run pipe. Code of construction is B31.3 AND material is SS 321. But our welders are ONLY qualified in GTAW+SMAW. So We need to prepare new WPS and conduct PQR, but my doubt is it mandatory to qualify the welders in SMAW on 2" pipe for this job.Please advise.

Thanks & Regards

LALU R.P

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