Seek ultrasonic flaw detection process
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Our unit needs to weld some high-pressure pipes, and to ensure the quality of the welding, it is necessary to develop a detailed and feasible inspection procedure. The pipe is φ276*35 mm, with butt joint and a groove angle of 60°. Material: 20# steel. Is it necessary to use ultrasonic testing first to check whether full penetration has been achieved after TIG welding as a root pass? If testing is required, can it be detected by ultrasonic testing after the root welding? How should the specific flaw detection process be established? Is it necessary to perform ultrasonic testing after welding each layer?
I forgot to mention that it is the butt joint seam of the pipeline that needs to be inspected.