GB/T 40297-2021 Seamless austenitic stainless steel pipes for high pressure hydrogenation unit

Scope: This document specifies the classification and code, order content, size, shape and weight, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of austenitic stainless steel blank steel pipes for high-pressure oxygenation devices. This document is applicable to austenitic stainless steel grainless steel pipes (hereinafter referred to as "steel pipes") for high-pressure oxygenation equipment, and austenitic stainless steel grainless steel pipes for other ammonia working conditions can also be implemented as a reference.

GB/T 1031 Geometrical Product Specifications(GPS).Surface texture:Profile method.Surface roughness parameters and their values
GB/T 228 Metallic materials--Tensile testing at ambient temperature
GB/T 232 Metallic materials.Bend test
GB/T 241 Metal materials-Tube.Hydrostatic pressure test
GB/T 242 Metal materials.Tube.Drift-expending test
GB/T 246 Metallic materials—Tube—Flattening test
GB/T 2975 Steel and steel products.Location and preparation of samples and test pieces for mechanical testing
GB/T 4334 Corrosion of metals and alloys－Test methods for intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels
GB/T 5777 Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections
GB/T 7735 Automatic eddy current testing for flaws in seamless and welded (except submerged arc welded) steel pipes Amendment No. 1
NB/T 47013 Interpretation of "Nondestructive Testing of Pressure Equipment" Standard

2021 GB/T 40297-2021 Seamless austenitic stainless steel pipes for high pressure hydrogenation unit

GB/T 40297-2021Seamless austenitic stainless steel pipes for high pressure hydrogenation unit