Your understanding is correct. It is exempted
From: Vivek Bhisade [mailto:vivek@tpr.grengg.com]
Sent: Tuesday, July 28, 2009 2:20 PM
To: materials-welding@googlegroups.com
Subject: Toughness Requirement for Dissimiller Weld
Dear All,
We have a job ( hydro generator) material SA 387 Gr.11 CL 2 + SS347 ( clad) ,required impact testing at (minus)-18 Deg.C with energy value 33 J average (irrespective of MDMT ),having some nozzles (LWNR) material is SA 182 F 347.
For Welding Procedure Qualification of Dissimilar metals Nozzle to Shell joint ( P4 To P8) using electrodes by E309L , weld Impact test is required or not?
As per ASME SEC VIII Div 1 – UHA-51 (e) it is exempted ,
Please advise.
Thanks in advance.
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