Friday, March 4, 2011

[MW:10133] PQR Test coupon diameter range. Can i qualify in 2 Inch NPS? ASME sec 9

Dear All,

As per QW 310, the test coupon sizes shall be NPS 6 inch or greater?
for PQR & WPS qualification, can i go with NPS 2 inch test coupon?
(possible r not)
if i do witt 2 inch then how many test coupon i want to make?

Regards
srinivas

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