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[MW:23284] UT or PAUT lieu of RT for Pipes, Tubes in Boiler/ Power Piping.

By Materials & Welding

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.

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