GB/T 40740-2021
ActiveWelding procedures qualification for overlay welding
堆焊工艺评定试验
Application Summary AI generated
This standard specifies the test methods and acceptance criteria for qualifying welding procedures used in overlay welding, where a corrosion-resistant or wear-resistant layer is deposited onto a base metal. It is applied in manufacturing industries such as pressure vessels, chemical equipment, and heavy machinery to ensure the quality and performance of cladded surfaces. The standard is used by engineers and quality inspectors during procedure qualification trials before production welding begins.
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 15169-2003
Qualification test of welders--Fusion welding forsteels
GB/T 12470-2003
Low-alloy steel electrodes and fluxes for submerged arc welding
GB/T 19419-2003
Welding coordination--Tasks and responsibilities
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.