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qualified P numbers for welder... 1

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emrekop

emrekop

Industrial
Joined
Dec 10, 2006
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Hii everyone...in ASME sec9, part QW423, a welder qualified with P no=1 can weld P No 1 to 11 ...does this include p no's 5A and 5B...thanks
 
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emrekop,
Be careful, base metal substitution can only be done if all other essential variables in the WPS/PQR being used remain the same. I've seen this paragraph misapplied more than once.
Regards,
RLS
 
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