Detail of GB 6479-2013

Introduction of GB 6479-2013

1 Scope This standard specifies seamless steel tubes for high-pressure for chemical fertilizer equipments in terms of dimension, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and certification, etc. This standard is applicable to seamless steel tube for high-pressure chemical fertilizers equipments and pipeline or the ones for other chemical equipment. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated reference, the latest edition of the normative document (including any amendments) applies. GB/T 222 Permissible Tolerances for Chemical Composition of Steel Products GB/T 223.3 "Methods for Chemical Analysis of Iron, Steel and Alloy-The Diantipyrylmethane Phosphomolybdate Gravimetric Method for the Determination of Phosphorus Content" GB/T 223. 5 Steel and Iron - Determination of Acid-soluble Silicon and Total Silicon Content - Reduced Molybdosilicate Spectrophotometric Method GB/T 223.11 Iron Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method GB/T 223.12 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Carbonate Separation-Diphenyl Carbazide Photometric Method for the Determination of Chromium Content GB/T 223.14 Methods for Chemical Analysis of Iron, Steel and Alloy - The N-benzoy-N-phenylhydroxylamine Extraction Photometric Method for the Determination of Vanadium Content GB/T 223.18 "Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Thiosulfate Separation Iodimetric Method for the Determination of Copper Content" GB/T 223.19 Methods for Chemical Analysis of Iron, Steel and Alloy; The Neocuproine-chloroform Extraction Photometric Method for the Determination of Copper 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 Methods for Chemical Analysis of Iron, Steel and Alloy - The Indophenal Blue Photometric Methods for the Determination of Nitrogen Content after Distillation Separation GB/T 223. 40 Iron, Steel and Alloy-Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method GB/T 223. 43 Iron, Steel and Alloy - Determination of Tungsten Content - Gravimetric Method and Spectrophotometric Method GB/T 223. 54 Methods for Chemical Analysis of Iron, Steel and Alloy - The Flame Atomic Absorption Spectrophotometric Method for the Determination of Nickel Content GB/T 223. 58 Methods for Chemical Analysis of Iron, Steel and Alloy-The Sodium Arsenite-sodium Nitrite Titrimetric Method for the Determination of Manganese Content GB/T 223. 59 Iron Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method GB/T 223. 60 Methods for Chemical Analysis of Iron, Steel and Alloy-The Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content GB/T 223. 61 Methods for Chemical Analysis of Iron, Steel and Alloy; The Ammonium Phosphomolybdate Volumetric Method for the Determination of Phosphorus Content GB/T 223. 62 Methods for Chemical Analysis of Iron, Steel and Alloy-The Butyl Acetate Extraction Photometric Method for the Determination of Phosphorus Content GB/T 223. 63 Methods for Chemical Analysis of Iron, Steel and Alloy; The Sodium (Potassium) Periodate Photometric Method for the Determination of Manganese Content GB/T 223. 64 Iron Steel and Alloy- Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method GB/T 223.68 GB/T 223.72 Methods for Chemical Analysis of Iron, Steel and Alloy - The Potassium Iodate Titration Method after Combustion in the Pipe Furnace for the Determination of Sulfur Content GB/T 223. 69 Iron Steel and Alloy - Determination of Carbon Contents - Gas-volumetric Method after Combustion in the Pipe Furnace GB/T 223. 71 Methods for Chemical Analysis of Iron, Steel and Alloy - the Gravimetric Method after Combustion in the Pipe Furnace for the Determination of Carbon Content GB/T 223.72 Iron Steel and Alloy - Determination of Sulfur Content - Gravimetric Method GB/T 223. 74 Methods for Chemical Analysis of Iron, Steel and Alloy - The Combustion Gravimetric/gas-volumetric Method for the Determination of Combined Carbon Content GB/T 226 Etch Test for Macrostructure and Defect of Steels GB/T 228.1 Metallic Materials - Tensile Testing - Part 1 : Method of Test at Room Temperature GB/T 229 Metallic Materials - Charpy Pendulum Impact Test Method GB/T 241 Metallic Pipe - Hydraulic Pressure Test Method GB/T 242 Metal Materials—Tube—Drift-expending Test GB/T 246 Metallic materials--Tube--Flattening test GB/T 1979 Standard Diagrams for Macrostructure and Defect of 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 Test Pieces for Mechanical Testing GB/T 4336 Standard Test Method for Spark Discharge Atomic Emission Spectrometric Analysis of Carbon and Low-alloy Steel (Routine Method) GB/T 5777-2880 Seamless Steel Pipe and Tubing Methods for Ultrasonic Testing GB/T 7735-2004 Steel Tubes - The Inspection Method on Eddy Current Test GB/T 10561-2005 Steel Determination of Content of Nonmetallic Inclusions Micrographic Method using Standards Diagrams GB/T 12606-1999 Steel Tubes--The Testing Method of Magnetic Flux Leakage 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 4149 Continuously Cast Round Billet for Seamless Steel Tube Rolling GB/T 5137 Round Blank of Hot-rolled and Forged Seamless Steel Tube for High Pressure 3 Order For the purpose of this standard, the order contract or order form shall include the following information: a) Standard No. ; b) Product name;

Contents of GB 6479-2013

Foreword I 1 Scope 2 Normative References 3 Order 4 Dimension, Shape and Weight 5 Technical Requirements 6 Test Methods 7 Inspection Rules 8 Packaging, Marking and Certification