This specification specifies the technical and quality requirements for preheating, postheating and postweld heat treatment of steel pipeline welding. This specification is applicable to the construction and acceptance of welding heat treatment of steel pipelines in petrochemical and coal chemical engineering projects.
SH/T 3554-2013 Referenced Document
GB 50484 Code for technical of construction safety in petrochemical engineering*, 2019-07-10 Update
GB 50517 Code for construction quality acceptance of metallic piping in petrochemical engineering
GB/T 18591 Welding--Guidance on the measurement of preheating temperature,interpass temperature and preheat maintenance temperature