GB/T 33164.2-2016 English PDF (GBT33164.2-2016)

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GB/T 33164.2-2016: Spring steels for automotive suspension system -- Part 2: Hot rolled round steel bar and wire rod
GB/T 33164.2-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.25
H 40
Spring Steels for Automotive Suspension System –
Part 2. Hot Rolled Round Steel Bar and Wire Rod
ISSUED ON. OCTOBER 13, 2016
IMPLEMENTED ON. SEPTEMBER 1, 2017
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Application Scope ... 4 
2 Normative References ... 4 
3 Ordering Content ... 6 
4 Dimension, Shape and Weight ... 7 
5 Technical Requirements ... 8 
6 Test Methods ... 14 
7 Inspection Rules ... 15 
8 Packaging, Marking and Quality Certification ... 16 
Annex A (Informative) Table of Comparison of the Designations of This Part with
the Designations of Domestic and Overseas Standards ... 17 
Foreword
GB/T 33164, Spring Steels for Automotive Suspension System, is divided into two
parts.
-- Part 1. Hot Rolled Flat Steels;
-- Part 2. Hot Rolled Round Steel Bar and Wire Rod.
This Part is Part 2 of GB/T 33164.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009.
This Part was proposed by China Iron and Steel Association.
This Part shall be under the jurisdiction of the National Standardization Technical
Committee on Steels (SAC/TC 183).
The drafting organizations of this Part. Jiangyin Xingcheng Special Steel Co., Ltd.,
Qingdao Special Steel and Iron Co., Ltd., Fangda Special Steel Technology Co., Ltd.,
China Metallurgical Information and Standardization Institute, Beijing Jiaotong
University.
The main drafters of this Part. Zhang Jianfeng, Xu Guangqin, Wu Ming, Liu Cheng, Hu
Haiping, Dai Qiang, Hui Weijun, Zhuang Na.
Spring Steels for Automotive Suspension System –
Part 2. Hot Rolled Round Steel Bar and Wire Rod
1 Application Scope
This Part specifies the ordering content, dimensions, shape, weight, technical
requirements, test methods, inspection rules, packaging, marking and quality
certification of round steel bars and wire rod for spiral spring, torsion bar and stabilizer
bar in automotive suspension system.
This Part applies to hot rolled round steel bar of nominal diameter not greater than 80
mm and hot rolled wire rod of nominal diameter not greater than 40 mm (hereinafter
referred to as steels).
2 Normative References
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition dated applies to this document. For
undated references, the latest edition of the referenced documents (including all
amendments) applies to this Part.
GB/T 222, Permissible Tolerances for Chemical Composition of Steel Products
GB/T 223.11, Iron, Steel and Alloy – Determination of Chromium Content – Visual
Titration or Potentiometric Titration Method
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 223.82, Steel and Iron – Determination of Hydrogen Content – Inert Gas
Impulse Fusion Heat Conductivity Method
GB/T 223.86, Steel and Iron – Determination of Total Carbon Content – Infrared
Absorption Method after Combustion in an Induction Furnace
GB/T 224, Determination of Depth of Decarburization of Steels
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 702-2008, Hot-rolled Steel Bars – Dimensions, Shape, Weight and Tolerances
GB/T 1814, Inspection Method for Steel Work Fractures
GB/T 1979, Standard Diagrams for Macrostructure and Defect of Structural Steels
GB/T 2101, General Requirement of Acceptance, Packaging, Marking and
Certification for Section Steel
GB/T 2975, Steel and Steel Products – Location and Preparation of Test Pieces for
Mechanical Testing
GB/T 3207-2008, Bright Steel
GB/T 4162, Forged and Rolled Steel Bars — Method for Ultrasonic Testing
GB/T 4336, Carbon and Low-alloy Steel – Determination of Multi-element Contents
– Spark Discharge Atomic Emission Spectrometric Method (Routine Method)
GB/T 5216-2014, Structural Steels with Specified Hardenability Bands
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, 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 13298, Inspection Methods of Microstructure for Metals
GB/T 13299, Steel – Determination of Microstructure
GB/T 13302, Steel－Determination of Area Content of Graphite-Micrographic
Method Using Diagrams
GB/T 14981-2009, Dimension, shape, mass and tolerance for hot-rolled round wire
rod
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 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
3 Ordering Content
3.1 The contract for ordering in accordance with this Part shall include the following
content.
a) number of this Part;
b) name of this Part;
c) product name;
d) designation;
e) dimension and accuracy;
f) nominal length or weight;
g) delivery condition and code (see 5.3);
h) group of non-metallic inclusions (see 5.7);
i) special requirements (see 5.12, if any).
4 Dimension, Shape and Weight
4.1 Round steels
4.1.1 The dimensions and tolerances of round steels shall be as specified in GB/T
702-2008; the specific group shall be stated in the contract, and if not stated, it shall
be as specified for Group 2 in GB/T 702-2008.
4.1.2 The normal length of round steel bar is...