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GB/T 33164.1-2016 English PDF (GBT33164.1-2016)

GB/T 33164.1-2016 English PDF (GBT33164.1-2016)

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GB/T 33164.1-2016: Spring steels for automotive suspension system -- Part 1: Hot rolled spring steel flat bars

This Part of GB/T 33164 specifies the ordering contents, dimension, shape, weight and permissible deviation, technical requirements, test methods, inspection rules, package, mark and quality certificate, etc. of hot rolled spring steel flat bars for automotive suspension system.
GB/T 33164.1-2016
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 77.140.25
H 40
Spring Steels for Automotive
Suspension System ?€? Part 1.
Hot Rolled Spring Steel Flat Bars
ISSUED ON. OCTOBER 13, 2016
IMPLEMENTED ON. SEPTEMBER 1, 2017
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 4
1 Scope ... 5
2 Normative References ... 5
3 Ordering Contents ... 7
4 Dimension, Shape, Weight ... 8
4.1 Cross-section shape and nominal dimension ... 8
4.2 Permission deviation on nominal dimension of flat bar cross-section ... 11 4.3 Length and permissible deviation... 13
4.4 Shape ... 13
4.5 Weight ... 14
5 Technical Requirements ... 14
5.1 Grade and chemical composition ... 14
5.2 Smelting method ... 16
5.3 Delivery state ... 16
5.4 Mechanical property ... 16
5.5 Hardenability ... 18
5.6 Macrostructure ... 18
5.7 Non-metallic inclusion ... 18
5.8 Decarbonization layer ... 19
5.9 Austenite grain size ... 19
5.10 Surface quality ... 19
5.11 Special requirements ... 20
6 Test Methods ... 20
7 Inspection Rules ... 21
7.1 Inspection and acceptance ... 21
7.2 Batching rules ... 21
7.3 Sampling quantity and sampling position ... 21
8 Package, Mark and Quality Certificate ... 22
Appendix A (Informative) Comparison Form between the Grades in Table 8 of this Part and the International Grades ... 23
Appendix B (Informative) 51CrMnV, 52CrMnMoV, 60CrMnMo End
Hardenability ... 24
Foreword
GB/T 33164 Spring Steels for Automotive Suspension System can be divided into the following two parts.
--- Part 1. Hot Rolled Spring Steel Flat Bars;
--- Part 2. Hot Rolled Round Steel Bar and Wire Rod.
This Part belongs to Part 1 of GB/T 33164.
This Part was drafted as per the rules specified in GB/T 1.1-2009.
This Part was proposed by China Iron and Steel Industry Association.
This Part shall be under the jurisdiction of National Technical Committee for Standardization of Steel (SAC/TC 183).
Drafting organizations of this Part. Fangda Special Steel Technology Co., Ltd., Qingdao Special Steel Co., Ltd., and China Metallurgical Information and Standardization Institute.
Chief drafting staffs of this Part. Xie Feiming, Chen Ming, Li Hongwei, Liu Cheng, Hu Haiping, and Yan Chengming.
Spring Steels for Automotive
Suspension System ?€? Part 1.
Hot Rolled Spring Steel Flat Bars
1 Scope
This Part of GB/T 33164 specifies the ordering contents, dimension, shape, weight and permissible deviation, technical requirements, test methods, inspection rules, package, mark and quality certificate, etc. of hot rolled spring steel flat bars for automotive suspension system.
This Part is applicable to the hot rolled spring steel flat bars for automotive suspension system (hereinafter refers to as flat bar) with width no greater than 160mm, thickness no greater than 60mm.
2 Normative References
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.
GB/T 222 Permissible Tolerances for Chemical Composition of Steel Products GB/T 223.5 Methods for Chemical Analysis of Iron, Steel and Alloy - the Reduced Molybdosilicate Spectrophotometric Method for the Determination of Acid-Soluble Silicon Content
GB/T 223.11 Methods for Chemical Analysis of Iron, Steel and Alloy - Ammonium Sulfate Oxidation Volumetric Method for the Determination of Chromium Content GB/T 223.13 Methods for Chemical Analysis of Iron, Steel and Alloy - the Ammonium Ferrous Sulfate Titration Method for the Determination of Vanadium 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 223.59 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 223.64 Iron, Steel, and Alloy ?€? Determination of Manganese Content ?€? Flame Atomic Absorption Spectrometric Method
GB/T 223.72 Iron, Steel and Alloy - Determination of Sulfur Content - Gravimetric Method
GB/T 223.75 Iron Steel and Alloy - Determination of Boron Content - Methanol Distillation-Curcumin Photometric Method
GB/T 223.76 Methods for Chemical Analysis of Iron, Steel and Alloy - The Flame Atomic Absorption Spectrometric Method for the Determination of Vanadium Content
GB/T 223.86 Iron Steel and Alloy - Determination of Total Carbon Content - Infrared Absorption Method after Combustion in an Induction Furnace
GB/T 224 Determination of Depth of Decarburization of Steel
GB/T 225 Steel ?€? Hardenability Test by End Quenching (Jominy Test)
GB/T 226 Test Method for Macrostructure and Defect of Steel by Etching
GB/T 228.1 Metallic Materials ?€? Tensile Testing ?€? Part 1. Method of Test at Room Temperature
GB/T 231.1 Metallic Materials ?€? Brinell Hardness Test ?€? Part 1. Test Method GB/T 1222 Spring Steel
GB/T 1979 Standard Diagrams for macrostructure and Defect of Structural Steel GB/T 2101 General Provisions on Acceptance, package, Marking and Quality Certificate for Profile Steel
GB/T 2975 Steel and Steel Products - Location and Preparation of Test Pieces for Mechanical Testing
GB/T 4336 Carbon and Low-Alloy Steel - Determination of Multi-Element Contents -Spark Discharge Atomic Emission Spectrometric Method (Routine Method)
GB/T 6394 Metal - Methods for Estimating the Average Grain Size
GB/T 7736 Ultrasonic Inspecting Method for Macro-Structure and Imperfection of Steel
GB/T 8170-2008 Rules of Rounding off for Numerical Values and Expression and Judgement of Limiting Values
GB/T 10561-2005 Steel - Determination of Content of Nonmetallic Inclusions - Micrographic Method Using Standards Diagrams
GB/T 11261 Steel and Iron - Determination of Oxygen Content - The Pulse Heating Inert Gas Fusion-Infra-Red Absorption Method
GB/T 13299 Steel - Determination of Microstructure
GB/T 17505 Steel and Steel Products ?€? General Technical Delivery Requirements GB/T 20066 Steel and Iron ?€? Sampling and Preparation of Samples for the Determination of Chemical Composition
GB/T 20213 Expand Perlite Powder for Firecrackers
3 Ordering Contents
The ordering contract or order form in this Part include the following contents. a) Standard number of this Part;
b) Product name;
c) Grade;
d) Weight (or quantity);
e) Dimension and accuracy (see Clause 4);
f) Group of non-metallic inclusions (see Table 12);
g) Special requirements (if have, see Sub-clause 5.11).
GB/T 223.64, GB/T 223.72, GB/T 223.75, GB/T 223.76, GB/T 223.86, GB/T 4336, GB/T 20123, or general test method; however, when arbitrating, it shall abide by GB/T 223.5, GB/T 223.11, GB/T 223.13, GB/T 223.19, GB/T 223.23, GB/T 223.26, GB/T 223.59, ...

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