Hi Hasin,
You require a separate PQR to weld P1GR2 material on the basis of the existing PQR (P1Gr1 material).
Gr no is an essential variable for impact. Based on the contract or project specifications, sometimes one may have qualify PQR on the exact grade/specification etc.
However as a smart strategy, if one qualifies all the PQR's with P1 material with Gr1 -Gr2 combination most of the ASME code's welding requirements get well accounted for.
Thanks.
Pradip Goswami, P.Eng,IWE
Welding & Metallurgical Specialist
Ontario, Canada
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of hasin shaikh
Sent: Monday, November 24, 2014 11:05 PM
To: materials-welding@googlegroups.com
Subject: [MW:22351] PQR -For P1-G1 TO G2
Dear Expert
I have query about PQR P1-G1 To P1-G2 ,To post to this group, send email to materials-welding@googlegroups.com
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