Re: [MW:14410] Code & Standard for Tubing

You should measure the weld total thickness (cup included) and if this is equal or greater than the pipe design thickness you can accept the concavity as per asme b31.3
Best regards
Dr Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
HBS Regional Technical Manager

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  From: "Vu Duc Thuan" [dthuan117@gmail.com]
  Sent: 30/05/2012 07:52 ZE7
  To: <materials-welding@googlegroups.com>
  Subject: [MW:14406] Code & Standard for Tubing

Dear Expert,

 

In my project, we have some tubing line ( ½” SS316L and Duplex) need to weld with reducer same material, we have WPS for both of material. The problem is the RT report show internal concavity but we do not have accept criteria for those weld joints as per drawing, Spec..etc..

 

Kindly please advise which code & standard are using for the tubing. ( tubing fix on the hydraulic control panel )

 

 

Regards,

 

Thuan

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