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Re: [MW:34693] PQR qualification with pipe & flange

By Materials & Welding

Just to add, there will be some requirement in the specification such as

1. For the sour service Pipeline, each Grade of material requires PQR testing.
2. Carbon Equivalent difference
3. Each product form requires separate testing etc..

Thanks & Regards

J.Gerald Jayakumar



On Thursday, 7 December, 2023 at 11:59:44 am IST, james gerald <gerry_tup@yahoo.com> wrote:


Your Question is very generic.

It depends on the Code, Specification, and Application.

For eg if the Code is ASME Sec.IX and the pipe is SA106Gr.B & the Flange is SA105, then P.No & Group No of pipe will be P1 & Gr.1 Whereas Flange will be P1 & Gr.2.

If you Qualify P1 Gr.1 to P1 Gr2, then it qualifies P1Gr1 to P1Gr1 and P1Gr2 to P1Gr2 & P1Gr1 to P1Gr2.

See below snap shot from ASME Sec.iX

Inline image


Thanks & Regards

J.Gerald Jayakumar




On Wednesday, 6 December, 2023 at 11:08:22 am IST, Muhammed Shareef <shareefpyari@gmail.com> wrote:


Dear experts,

Is it mandatory to qualify PQR with pipe and flange.? Why can't we qualify with pipe only. What is the limitations here to do so.


Thanks

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