A WPS is qualified on 16" diameter pipe. what is the minimum and maximum diameter qualification range?
Wich welding process? Thickness?
See ASME IX QW 288.1, but first: Welding Process
root & hot pass: GTAW (8mm)
fill passes: SMAW (17mm + reinforcement)
SMAW QW 253............QW404.6 & QW 404.7
GTAW QW 256...........QW 404.30
"I try to view the challenges in my life not as annoyances, but as confirmations of fortitude." -- Oprah Winfrey