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PQR D1.1 Diameter question

thread178-495996

PQR D1.1 Diameter question

PQR D1.1 Diameter question

(OP)
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

RE: PQR D1.1 Diameter question

The diameter ranges qualified based upon diameter tested are listed in table 10.9 of AWS D1.1.

Hope this helps...have a great day!

Gerald Austin
www.weldingdata.com
Greeneville Tennessee

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