GB/T 40734-2021
ActiveNon-destructive testing of welds—Phased array ultrasonic testing(PAUT)—Acceptance levels
焊缝无损检测 相控阵超声检测 验收等级
Application Summary AI generated
This standard specifies acceptance levels for discontinuities detected in welds using phased array ultrasonic testing (PAUT). It is applied in manufacturing and construction industries to evaluate the quality of welded joints in steel structures, pressure vessels, pipelines, and similar components. The standard provides criteria for classifying indications as acceptable or rejectable, ensuring consistent quality control during fabrication or in-service inspection.
Related Standards
GB/T 18591-2001
Welding - Guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperature
GB/T 25774.2-2016
Test methods for welding consumables - Part 2: Preparation of single-run and two-run technique test specimens in steel
GB/T 19419-2003
Welding coordination--Tasks and responsibilities
GB/T 12470-2003
Low-alloy steel electrodes and fluxes for submerged arc welding
GB/T 15169-2003
Qualification test of welders--Fusion welding forsteels
GB/T 19418-2003
Arc-welded joints in steel--Guidance on quality levels for imperfections
GB/T 8366-2004
Resistance welding--Resistance welding equipment--Mechanical and electrical requirements
GB/Z 41107.3-2021
Destructive tests on welds in metallic materials—Hot cracking tests for weldments—Arc welding processes—Part 3:Externally loaded tests
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.