T/CASEI 046-2024 The welded joint of a steel pressure-bearing equipment with 3D full-focused phased array ultrasonic testing

Scope

Main technical content: This document specifies the method and quality grading requirements for 3D full-focus phased array ultrasonic testing of welded joints in pressure equipment. The 3D full-focus phased array ultrasonic testing conducted in accordance with this document is a recordable pulse reflection ultrasonic testing method. This document applies to welded joints of carbon steel and low-alloy steel materials with a thickness of 3.2 mm to 300 mm in pressure equipment under manufacturing and in-service conditions. Other isotropic fine-grained materials can also refer to this document for implementation; for the 3D full-focus phased array ultrasonic testing of butt joints in pressure equipment made of austenitic stainless steel with a thickness of 10 mm to 150 mm, refer to Appendix B. For phased array ultrasonic testing of pressure equipment materials, structures, and welded joints not specified in this document, if the testing requirements can be met through process verification, refer to this document for implementation; for the 3D full-focus phased array ultrasonic testing of welded joints in pressure equipment-related support and structural components, refer to this document for implementation, but should take into account the changes in the acoustic properties and geometric structure of the materials.

Development Information

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