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[MW:622] RE: ESTABLISHMENT OF WPS FOR P22 TO P91

By Materials & Welding

I assume you are using ASME Sec IX for qualifications, since P no (P5A and 5B not P22/P91) are different for both these materials you need perform new PQR for welding P22 (falls under 5A) to P91(falls under 5B) refer QW403.1

From: shailesh dave [mailto:snd2988@yahoo.com]
Sent: Thursday, February 28, 2008 1:25 PM
To: materials-welding@googlegroups.com
Subject: ESTABLISHMENT OF WPS FOR P22 TO P91

 

DEAR MEMBERS.

 

I HAVE FOLLOWING QUARIES:-

 

I ALREADY HAVE ESTABLISHED WPS/PQR FOR ASTM A335P91 TO P91 FOR 57 mm THK.

 

NOW I HAVE COME ACROSS DISSIMILAR METAL WELDING OF ASTM A335P22 TO P91 58 mm THK.

 

MY QUESTION IS  DO I NEED TO ESTABLISH NEW WPS/PQR OR THE EARLIER ONE CAN SUPPORT THIS.

 

REGARDS,

 

S.N.DAVE

 

QA/QC MANAGER, TATA PROJECTS LIMITED

 

IWPP -III - SHUAIBAH POWER PROJECT

KINGDOM OF SAUDI ARABIA

 

 

 


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