This document specifies the order content, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of hot-rolled seamless steel pipes for hydraulic props. This document is applicable to the hot-rolled seamless steel pipes for cylinders and columns used in the manufacture of coal mine hydraulic support cylinders and pillars. Other hot-rolled seamless steel pipes for hydraulic cylinders and columns can be used as a reference.
GB/T 17396-2022 Referenced Document
GB/T 10561-2005 Steel.Determination of content of nonmetallic inclusions.Micrographic method using standards diagrams
GB/T 12606-2016 Full-circumference automatic magnetic flux leakage testing of seamless and welded (except submerged arc welded) ferromagnetic steel pipes for longitudinal and/or transverse imperfections
GB/T 17395 Dimensions, shapes, masses and tolerances of seamless steel tubes
GB/T 1979 Standard diagrams for macrostructure and defect of structural steels
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 2102 Acceptance, packaging, marking and quality certification for steel tubular products
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 226 Test method for macrostructure and defect of steel by etching
GB/T 228 Metallic materials--Tensile testing at ambient temperature
GB/T 229 Metallic materials—Charpy pendulum impact test method
GB/T 231 Metallic materials--Brinell hardness test
GB/T 2975 Steel and steel products.Location and preparation of samples and test pieces for mechanical testing
GB/T 4336 Determination of multi-element content in carbon steel and medium and low alloy steel Spark discharge atomic emission spectrometry (conventional method) Amendment No. 1
GB/T 5777-2019 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 7735-2016 Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imperfections