RE: [MW:18519] Back gouge requirement of Tank girth weld

It is always better to have intermediate  ndt in the  buttering area  to ensure defect free weld  . final NDT is mandatory refer section 6 of API 650

 

sujeeth

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Mony Kandan
Sent: Monday, August 26, 2013 12:55 PM
To: materials-welding@googlegroups.com
Subject: [MW:18513] Back gouge requirement of Tank girth weld

 

Dear Experts ,

 

Kindly suggest on  following issue

 

In our project we have API 650 Tank installation ,during construction activities the contractor didn't carried out backgouge grinding  in girth weld .The process used for saw welding and they made welding  simultaneously inside and outside,and joint configaration like that square butt weld.During fit up activites buttering also done to maintained the gap without any NDT .How we have to ensure that weld is sound weld or not.please give your valuable reply with any code reference.

 

Thanks and Regards

Monykandan.T

 

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