Dear Experts
Greetings of the day,
I Have an existing PQR of carbon steel P1G1 to P1G1 OF MATERIAL THICKNESS 21.94" & Diameter 6".
GTAW – 5.97mm & SMAW -17.1mm
PWHT – 640 deg. Cel. With soak time 75 min.
Impact test – Not Applicable
By using this PQR Can I make WPS for P1G1 to P1G1.Where T= 5mm to 25mm without PWHT (AS PER ASME B31.3 Para 331.1.1&331.1.3).
Because as per my project scope I need only 25mm maximum base metal thickness. So, for this I need to do PWHT or NOT. Although I have did PWHT in PQR.
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