GB/T 33164.1-2016Spring Steels for Automotive Suspension System - Part 1: Hot Rolled Spring Steel Flat Bars (English PDF)

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 & 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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