GB/T 12771 Welded stainless steel pipes for fluid transport
GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
GB/T 20123 Steel and iron - Determination of total carbon and sulfur content Infrared absorption method after combustion in an induction furnace (routine method)
GB/T 20124 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)
GB/T 2102 Acceptance, packaging, marking and quality certification for steel tubular products*, 2022-10-14 Update
GB/T 21835 Dimensions and masses per unit length of welded steel pipes
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.11 Determination of chromium content in iron, steel and alloy by visual titration or potentiometric titration
GB/T 223.9 Iron,steel and alloy.Determination of aluminium content.Chrome azurol S photometric method
GB/T 241 Metal materials-Tube.Hydrostatic pressure test
GB/T 4334 Corrosion of metals and alloys-Test methods for intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels*, 2020-04-28 Update
GB/T 6394 Determination of estimating the average grain size of metal
GB/T 7735-2016 Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imperfections
NB/T 47013.11 Non-destructive testing of pressure equipment Part 11: Radiographic digital imaging testing*, 2023-10-11 Update
NB/T 47013.2 Nondestructive testing of pressure equipments.Part 2: Radiographic testing
GB/T 12771-2019 history
2019GB/T 12771-2019 Welded stainless steel pipes for fluid transport
2008GB/T 12771-2008 Welded stainless steel pipes for liquid delivery
2000GB/T 12771-2000 Welded stainless steel pipes for liquid delivery