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PQR D1.1 Diameter question

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OZWelder

Mechanical
Joined
Oct 25, 2021
Messages
37
Location
AU
Hello All,

I have a question regards range of diameters when qualifying a PQR, if I run a PQR on 300NB STD pipe will the DIAMETER range on the WPS be unlimited. As long as the welder is qualified using the right diameter pipe for the job.

Example: if I was to do a PQR on 300NB pipe as long as the thickness was in range I than could use that PQR to weld 80Nb pipe? it is the position and thickness that has a range not diameter? NON CVN application.


Thanks all
 
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