Re: [MW:18838] PQR for Gr. P91

only one pipe 6"sch 160 is enough for that PQR . to cover the max. thk. and imact test if required.

 

Thanks

Mohamed El Sayed

Senior QC Welding Engineer

 

From: sumod s <sumod.sadhupuram@gmail.com>
To: materials-welding <materials-welding@googlegroups.com>
Sent: Thursday, October 3, 2013 6:53 AM
Subject: [MW:18836] PQR for Gr. P91

Dear Experts,

 

I need to do a  PQR for SA335 Gr.P91. The maximum thickness requirement for site welding is 30.96 mm. I am planning to use 6" sch 160(18.24 mm) pipe as it is available with us. But I need to confirm whether welding of one such piece is enough or not as we have to do 2 tension & 4 side bend tests. Please confirm the other requirements also.

 

Sumod

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