Comparison standard sample for ultrasonic phased array detection and correction of welded pipe end

The invention provides a comparison standard sample for ultrasonic phased array detection and correction of a welded pipe end, and belongs to the technical field of welded pipe end detection. Comprising a hollow cylindrical welded pipe, a welding seam is arranged on a pipe body of the welded pipe, the end part of the welded pipe is a groove surface, and the vertical through holes are formed in the groove surface, the welding seam and the pipe body and are used for comparing and correcting non-layering defect sensitivity during ultrasonic phased array detection of the pipe end of the welded pipe; the plurality of flat-bottom holes are formed in the groove surface and the pipe body and are used for comparing and correcting the layering defect sensitivity during ultrasonic phased array detection of the pipe end of the welded pipe; and the plurality of notch grooves are formed in the groove surface and the pipe body and are used for comparing and correcting the detection range during ultrasonic phased array detec