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GB/T 33164.2-2016Spring Steels for Automotive Suspension System - Part 2: Hot Rolled Round Steel Bar and Wire Rod (English PDF)

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

Level / Type

National · Recommended

Issue date

October 13, 2016

Implementation date

September 1, 2017

Scope

GB/T 33164.2-2016 (Spring Steels for Automotive Suspension System - Part 2: Hot Rolled Round Steel Bar and Wire Rod) is available as an English-translated PDF.

GB/T 33164.2-2016 is the Chinese standard "Spring Steels for Automotive Suspension System - Part 2: Hot Rolled Round Steel Bar and Wire Rod".

Its scope clause reads: 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).

Its clauses include application scope; ordering content; dimension, shape and weight. It was issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on 2016-10-13 and took effect on 2017-09-01.

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Document preview — GB/T 33164.2-2016

National Standard of the People's Republic of China

ICS: 77.140.25
Classification: H 40

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

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

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.

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 3 000 mm ~ 12 000 mm; steels shall be

mm.

4.1.3 The out-of-roundness of round steels shall be as specified in GB/T 702-2008.

4.1.4 The bending of round steels shall be as specified for Group 1 in GB/T 702-2008.

4.1.5 The ends of round steels shall be cut by sawing or shearing neatly, without

defects that are adverse to use, including burrs and misruns.

4.2 Bright steels

4.2.1 The diameter and tolerance of bright steels shall be as specified for grade 11

(h11) in GB/T 3207-2008. Steels of other grades or tolerances may also be delivered

as agreed on by the supplier and the purchaser; the specific grades and tolerances

shall be stated in the contract.

4.2.2 The normal length of bright steels is 3 000 mm ~ 12 000 mm; steels shall be

4.2.3 The out-of-roundness of bright steels shall be as specified in GB/T 3207-2008.

4.2.4 The bending of bright steels per meter shall not be greater than 2 mm; the total

bending shall not be greater than 0.20% of the length of steels.

4.2.5 The ends of bright steels shall be cut by sawing or shearing neatly, without

defects that are adverse to use, including burrs; the tolerance for perpendicularity of

the end faces of bright steels shall not be greater than 2 mm.

4.3 Wire rods

The dimensions, shape and tolerances of wire rods shall meet the accuracy

......

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 16 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 223.19 · GB/T 223.64 · GB/T 223.86 · GB/T 14981-2009

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