Re: [MW:27510] Re: Impact Test for Procedure Qualification

Hi, please find the attached interpretation for avoiding 2nd pqr.

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On Mon, Mar 12, 2018 at 5:23 PM, Ramesh

<rameshkannandevaraj@gmail.com> wrote:

Hi

Since You mentioned with impact test, i have suggested 3 PQR thickness. 

if PQR (2) absent, then there is thickness gap between 12 to 16 mm.. 

Mr. Prashant Panchal or any experts shall provide code case and explanation how / why PQR (2) is not required when impact test calls far for our understanding pl. 

If impact not required u can use that PQR (3) 25mm thk , which qualifies 5 to 50 mm ( with out PWHT) 

​

On Mon, Mar 12, 2018 at 2:33 PM, Jibin Philip <jibinphilip123@gmail.com> wrote:

Thank you all for your valuable informations , 

Dear Ramesh ji ,

Can u elaborate more for the below comments ,

Qualify other PQR (2) with 12 mm thick , this will qualify 12 to 24 mm thk - 

this pqr can be avoided by using asme interpretations

Regards , 

jibin 

On Sunday, 11 March 2018 12:46:38 UTC+3, Jibin Philip wrote:

Dear All , 

Spec - ASME B31.3 (Ed : 2016)  & Sec IX (Ed : 2017) ,

For PQR-A106 GR B -  i have taken 6" pipe Thk - 10.97mm - with impact test

Q1) What will be the thickness range qualified is it 10.97 to 16.97 or 5 mm to 16.97 or 5 mm to 21.94.

Q2) If i need to qualify a WPS with Thk ranges 5 mm to 25mm which thickness need to be selected .

Regards , 

Jibin 

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