UT or PAUT lieu of RT for Pipes, Tubes in Boiler/ Power Piping.

[Sudalai Kannan]

Dear Experts,

Can you please give the reference below?

We have 2000 butt weld joints (2” * 6mm Thick) for RT in Power Boiler and the project time is so short and we proposed PAUT lieu of RT to our client.

Then client ask the reference from the code and we referred PW-11 & 52 as per ASME Sec. I but PW-11 is clearly mentioned that UT shall be carried out in circumferential weld of pipes and tubes more than 4” or thickness more than 13mm.

Can you please give the reference from ASME section to UT or PAUT lieu of RT for 6mm thickness of Pipe or Tube or power pipe.

Thanks & best regards,

M.Sudalai,

QA/QC Engineer.

[S.Mohammed]

pl.refer ASME Code Case 2235-9.

[pgoswami]

Mr. Sudalai,

 

Please find the following attached articles for your information.The relevant ASME code cases are also mentioned.Many of these code cases are annulled to the main design code. However if you search in IHS or in the web you may find each code section specific code case.

 

PAUT would require more detailed training and interpretation skills for the operators, which may be a hindrance.

 

Thanks.

 

Pradip Goswami, P.Eng,IWE

Welding & Metallurgical Engineer/Specialist

Ontario, Canada

pgos...@quickclic.net

pradip....@gmail.com

 

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From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Sudalai Kannan
Sent: Thursday, May 14, 2015 10:00 AM
To: material...@googlegroups.com
Subject: [MW:23284] UT or PAUT lieu of RT for Pipes, Tubes in Boiler/ Power Piping.

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[Nitin Shetty]

Dear Sudalia,

ASME sec VIII Div 1 (2013 Ed) has the provision to do AUT (PAUT) for thickness upto 6 mm Please refer UW 51 (a)(4) which in turn refers to ASME Sec VIII Div 2 Clause no 7.5.5. Code case shall not be used as it is a part of code now.The probes need to be made to suit the curvature of the Pipe. Demonstration blocks have to be prepared for operator qualification as per code and if clients insist then the block can be made with notches meeting both client and code requirement.

Regards,

Nitin

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