Re: [MW:31556] NEW WPS with PQR'S P1G1-P1G2 combination

3. Point you can use the same PQR but only need to prepare WPS.

Thanks & Regards

J.Gerald Jayakumar

On Monday, 12 October, 2020, 09:27:45 am GMT+7, George Dilintas <dilintas@gmail.com> wrote:

2.Can I do New WPS with the Combination PQRs P1G1-P1G2?  YES

3.Can I use the  WPS P1G1 to do welding for P1G1-P1G2?  NO, you have to write a new WPS

Στις Σάβ, 10 Οκτ 2020 στις 3:30 μ.μ., ο/η udaya bhaskar <dusroni@gmail.com> έγραψε:

Dear giants,

1.We have two Different PQRs P1G1-P1G1 & P1G2-P1G2.

2.Can I do New WPS with the Combination PQRs P1G1-P1G2?

3.Can I use the  WPS P1G1 to do welding for P1G1-P1G2?  

For ferrous materials in Table QW/QB-422, a procedure qualification shall be made for each P‐Number Group Number combination of base metals, even though procedure qualification tests have been made for each of the two base metals welded to itself. If, however, two or more qualification records have the same essential and supplementary essential variables, except that the base metals are assigned to different Group Numbers within the same P‐Number, then the combination of base metals is also qualified. In addition, when base metals of two different Group Numbers within the same P-Number are qualified using a single test coupon, that coupon qualifies the welding of those two Group Numbers within the same P-Number to themselves as well as to each other using the variables qualified. This variable does not apply when toughness testing of the heat‐affected zone is not required by other Sections.  

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With Regards

Udaya bahaskar.D

+919676270121

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Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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