GB 6479-2013 English PDF

GB 6479-2013: [GB/T 6479-2013] Seamless steel tubes for high-pressure chemical fertilizer equipment
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GB 6479-2013
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.75
H 48
Replacing GB 6479-2000
Seamless Steel Tubes for High-Pressure
Chemical Fertilizer Equipments
ISSUED ON. SEPTEMBER 18, 2013
IMPLEMENTED ON. JULY 1, 2014
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative References ... 5 
3 Order ... 8 
4 Dimension, Shape and Weight ... 9 
5 Technical Requirements ... 11 
6 Test Methods ... 19 
7 Inspection Rules ... 20 
8 Packaging, Marking and Quality Certificate ... 21 
Foreword
In this Standard, 4.4, 4.6, 5.1, 5.2, 5.3, 5.4.1, 5.4.2, 5.4.4, 5.4.5, 5.5, 5.6.1, 5.7, 5.8.1,
5.9, 5.10.1, clauses 6~8 are mandatory; the rest are recommendatory.
This Standard is drafted according to the requirements of GB/T 1.1-2009.
This Standard replaces GB 6479-2000 Seamless Steel Tubes for High-Pressure
Chemical Fertilizer Equipments. Compared with GB 6479-2000, besides editorial
changes, this Standard has the main technical changes as follows.
— Normative references are adjusted and added;
— Order contents are added;
— Allowable deviation of outer-diameter and wall-thickness of steel tube is
modified;
— Allowable length deviation is modified;
— The requirement of flexibility along the full length is added;
— The requirements of out-of-roundness and wall unevenness are added;
— Designation and chemical composition are modified;
— Manufacturing methods are modified;
— Mechanical properties are modified;
— The requirements of flattening test are modified;
— Nonmetallic inclusion test requirements are modified;
— Non-destructive inspection requirements are modified.
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of the National Technical Committee on
Iron and Steel of Standardization Administration of China ( SAC/TC 183).
Drafting organizations of this Standard. Angang Steel Company Limited, Ansteel
Chengdu Steel-Vanadium Co., Ltd., Hunan Hualing steel pipe Holding Co., Ltd.,
Zhejiang University of Technology Chemical Equipment Co., Ltd., Hengyang Valin
Steel Tube Co. Ltd. AND Jiangsu Valin-Xigang Special Steel Co., Ltd.
Chief drafting staffs of this Standard. Guo Xiuli, Piao Zhimin, Li Qi, Li Yanghua, He
Seamless Steel Tubes for High-Pressure Chemical
Fertilizer Equipments
1 Scope
This Standard specifies seamless steel tubes for high-pressure for chemical fertilizer
equipment in terms of dimension, shape, weight, technical requirements, test
methods, inspection rules, packaging, marking and quality certificate, etc.
This Standard is applicable to seamless steel tube for high-pressure chemical
fertilizers equipment 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 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 St...
GB 6479-2013
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.75
H 48
Replacing GB 6479-2000
Seamless Steel Tubes for High-Pressure
Chemical Fertilizer Equipments
ISSUED ON. SEPTEMBER 18, 2013
IMPLEMENTED ON. JULY 1, 2014
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative References ... 5 
3 Order ... 8 
4 Dimension, Shape and Weight ... 9 
5 Technical Requirements ... 11 
6 Test Methods ... 19 
7 Inspection Rules ... 20 
8 Packaging, Marking and Quality Certificate ... 21 
Foreword
In this Standard, 4.4, 4.6, 5.1, 5.2, 5.3, 5.4.1, 5.4.2, 5.4.4, 5.4.5, 5.5, 5.6.1, 5.7, 5.8.1,
5.9, 5.10.1, clauses 6~8 are mandatory; the rest are recommendatory.
This Standard is drafted according to the requirements of GB/T 1.1-2009.
This Standard replaces GB 6479-2000 Seamless Steel Tubes for High-Pressure
Chemical Fertilizer Equipments. Compared with GB 6479-2000, besides editorial
changes, this Standard has the main technical changes as follows.
— Normative references are adjusted and added;
— Order contents are added;
— Allowable deviation of outer-diameter and wall-thickness of steel tube is
modified;
— Allowable length deviation is modified;
— The requirement of flexibility along the full length is added;
— The requirements of out-of-roundness and wall unevenness are added;
— Designation and chemical composition are modified;
— Manufacturing methods are modified;
— Mechanical properties are modified;
— The requirements of flattening test are modified;
— Nonmetallic inclusion test requirements are modified;
— Non-destructive inspection requirements are modified.
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of the National Technical Committee on
Iron and Steel of Standardization Administration of China ( SAC/TC 183).
Drafting organizations of this Standard. Angang Steel Company Limited, Ansteel
Chengdu Steel-Vanadium Co., Ltd., Hunan Hualing steel pipe Holding Co., Ltd.,
Zhejiang University of Technology Chemical Equipment Co., Ltd., Hengyang Valin
Steel Tube Co. Ltd. AND Jiangsu Valin-Xigang Special Steel Co., Ltd.
Chief drafting staffs of this Standard. Guo Xiuli, Piao Zhimin, Li Qi, Li Yanghua, He
Seamless Steel Tubes for High-Pressure Chemical
Fertilizer Equipments
1 Scope
This Standard specifies seamless steel tubes for high-pressure for chemical fertilizer
equipment in terms of dimension, shape, weight, technical requirements, test
methods, inspection rules, packaging, marking and quality certificate, etc.
This Standard is applicable to seamless steel tube for high-pressure chemical
fertilizers equipment 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...