Seamless cold-drawn or cold-rolled steel tubes for precision applications
1 Scope
This document specifies the classification, designation, order content, dimensions, shape, weight and permissible deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificates for seamless cold-drawn or cold-rolled steel tubes for precision applications.
This document is applicable to manufacturing seamless cold-drawn or cold-rolled steel tubes for precision applications (hereinafter referred to as steel pipes) with special dimensional accuracy and high surface quality requirements for mechanical structures, hydraulic equipment and automobile parts.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method
GB/T 223.9 Iron, steel and alloy - Determination of aluminum content - Chrome azurol S photometric method
GB/T 223.12 Methodsfor chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
GB/T 223.23 Iron, steel and alloy - Determination of nickel content - The dimethylglyoxime spectrophotometric method
GB/T 223.26 Iron, steel and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method
GB/T 223.37 Iron, steel and alloy - Determination of nitrogen content - Indophenol blue spectrophotometric method after distillation separation
GB/T 223.53 Methods for chemical analysis of iron，steel and alloy - The flame atomic absorption spectrophotometric method for the determination of copper content
GB/T223.59 Iron,steel and alloy - Determination of phosphorus content - Bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometric method
GB/T 223.63 Methods for chemical analysis of iron，steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese contents
GB/T 223.85 Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace
GB/T 223.86 Steel and iron - Determination of total carbon content - Infrared absorption method after combustion in an induction furnace
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
GB/T 242 Metal materials-Tube - Drift-expending test
GB/T 246 Metallic materials - Tube - Flattening test
GB/T 699 Quality carbon structure steels
GB/T 1031 Geometrical product specifications (GPS) - Surface texture: Profile method - Surface roughness parameters and their values
GB/T 1591 High strength low alloy structural steels
GB/T 2102 Acceptance, packing, marking and quality certification of steel pipe
GB/T 2975 Steel and steel products - Location and preparation of samples and test pieces for mechanical testing
GB/T 3077 Alloy structure steels
GB/T 4336 Carbon and low-alloy steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (routine method)
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
GB/T 12606-2016 Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections
GB/T 17395 Dimensions, shapes, masses and tolerances of seamless steel tubes
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 20125 Low-alloy steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method
GB/T 30062 Terminology of steel pipes and tubes
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
5 Order content
6 Dimensions, shapes, weight and permissible deviations
7 Technical requirements
8 Inspection and test methods
9 Inspection rules
10 Packaging, marking and quality certificate
Seamless cold-drawn or cold-rolled steel tubes for precision applications
1 Scope
This document specifies the classification, designation, order content, dimensions, shape, weight and permissible deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificates for seamless cold-drawn or cold-rolled steel tubes for precision applications.
This document is applicable to manufacturing seamless cold-drawn or cold-rolled steel tubes for precision applications (hereinafter referred to as steel pipes) with special dimensional accuracy and high surface quality requirements for mechanical structures, hydraulic equipment and automobile parts.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method
GB/T 223.9 Iron, steel and alloy - Determination of aluminum content - Chrome azurol S photometric method
GB/T 223.12 Methodsfor chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
GB/T 223.23 Iron, steel and alloy - Determination of nickel content - The dimethylglyoxime spectrophotometric method
GB/T 223.26 Iron, steel and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method
GB/T 223.37 Iron, steel and alloy - Determination of nitrogen content - Indophenol blue spectrophotometric method after distillation separation
GB/T 223.53 Methods for chemical analysis of iron，steel and alloy - The flame atomic absorption spectrophotometric method for the determination of copper content
GB/T223.59 Iron,steel and alloy - Determination of phosphorus content - Bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometric method
GB/T 223.63 Methods for chemical analysis of iron，steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese contents
GB/T 223.85 Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace
GB/T 223.86 Steel and iron - Determination of total carbon content - Infrared absorption method after combustion in an induction furnace
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
GB/T 242 Metal materials-Tube - Drift-expending test
GB/T 246 Metallic materials - Tube - Flattening test
GB/T 699 Quality carbon structure steels
GB/T 1031 Geometrical product specifications (GPS) - Surface texture: Profile method - Surface roughness parameters and their values
GB/T 1591 High strength low alloy structural steels
GB/T 2102 Acceptance, packing, marking and quality certification of steel pipe
GB/T 2975 Steel and steel products - Location and preparation of samples and test pieces for mechanical testing
GB/T 3077 Alloy structure steels
GB/T 4336 Carbon and low-alloy steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (routine method)
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
GB/T 12606-2016 Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections
GB/T 17395 Dimensions, shapes, masses and tolerances of seamless steel tubes
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 20125 Low-alloy steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method
GB/T 30062 Terminology of steel pipes and tubes
Contents of GB/T 3639-2021
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
5 Order content
6 Dimensions, shapes, weight and permissible deviations
7 Technical requirements
8 Inspection and test methods
9 Inspection rules
10 Packaging, marking and quality certificate
