PQR Test coupon diameter range. Can i qualify in 2 Inch NPS? ASME sec 9

[Srinivas Engr]

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

[Karthik]

Hi, You can go with 2" coupon.But you should also consider whether Only one 2" test coupon is enough for all mechanical test to be done.If the test specimen is not enough for mechanical tests,you should do aditional one coupon for sufficient mechanical test specimens. Thanks & Regards, (Karthik) Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Fri, 3/4/11, Srinivas Engr <srinivas...@gmail.com> wrote:

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[atul chaturvedi]

Dear Sriniwas,

QW-310 is for Welding performance qualification not for WPS / PQR. Diameter is not consider (variable) for WPS / PQR.                                     

You can use plate or pipe (Any diameter) for WPS / PQR.

Regards

Atul chaturvedi

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