Abstract:
The key requirements of ultrasonic test provided by ASME BPVC code and RCC-M code have been analyzed and discussed. The discussion was based on different industry codes with different nuclear powers. The examination time can be divided as forged bar stage and post hole-drilling stage. It shall pay more attention to axial direction scan from the external side surface and provide the substitution way. Discussion was made on the relationship between probe angel and the maximum testable depth for circumference shear wave scan and on the implementation of the angle beam criteria. It is helpful to draft tubular product ultrasonic specification and to use proper standards in the process of nuclear design and procurement activities.