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Hello When the execution specification sent by the client doesn't consider Additional information and options (4.1.1), what shall the manufacturer do? Who is responsible for ensuring that the execution specification is complete?

The undercut is identified all the long of the weld but with maximum depth 0.8mm measured by weld gauge and strip standard gap gauge.

Thanks UW-35 and the interpretation forwarded by David confirm that Code accepts the undercut regardless of its length provided the depth is less than 1mm or 10%. Since the purpose of the Code is safety, Comity should know that this defect is not harmful to the pv integrity before issuing the...

r6155 The weld having that undercut is acceptable by visual as per Code. Why should the welding process be investigated?

Thank you all.

Thanks This case is for carbon steel sa516gr70 pressure vessel nominal thickness of shell 20mm

Un undercut having depth 0.8mm is identified at all the long of a butt weld at the toe. Is it acceptable per ASME VIII Div 1?

Look in the document ASME PTB-4-13. It provides very good explanations to Code rules with some corrected exercises. (see exercise 4.16)