There is no reason for 2 pqrs. If the design and construction code does not have any impact test requirements you can do your pqr using only pno1/gropu no 1 material. Pqrs are usually done with plates since in Asme code diameter is neither essential nor supplementary essential variable
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| From: 'ramen samanta' via Materials & Welding Sent: Τετάρτη, 29 Απριλίου 2015 - 07:02 To: materials-welding@googlegroups.com Reply To: materials-welding@googlegroups.com Subject: [MW:23181] PQT for A333 Gr.6 pipe |
Dear Experts,
In our project, we have to establish a WPS /PQR for A333 Gr 6 Pipe (P-1,Group-1) and Flanges A350 LF-2 (P-1,Group-2). Process - GTAW+SMAW (with ER 70S-2 and E7018-1).
How to conduct/establish one combined PQT with P-1,Group-1 to P-1,Group-2 ??
Can we make two PQT separately of below options :-
One Pipe to Pipe in 6G position and other any Plate to Plate in 4G/3G position of which Tensile Strength 70 ksi) - Is it acceptable as per ASME Sec-IX?
Please clarify.
Thanks in advance,
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