Wednesday, February 25, 2009

[MW:1632] Minimum strength requirement of procedure.

Hi friends,
 
I need clarification on one important thing regarding PQR.
 
PQR is qualified with SA516Gr.60 ( P1 Gr.1) to SA516Gr.70( P1 Gr.2) wth E7018-1 Electrode and it passes at 62 KSI strength
Can it be used for SA516Gr.70 to SA516Gr.70 production weld based on the above results?.
 
As the production material require 70 KSI strength, how this procedure will support for SA516Gr.70 to SA516Gr.70welding
 

Thanks & Regards
Muhammed Ibrahim PK

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