GB/T 18983-2017Wire for quenched and tempered springs (English PDF)

Foreword

This Standard was drafted as per the rules specified in GB/T 1.1-2009.

This Standard replaced GB/T 18983-2003 Oil-Hardened and Tempered Steel Wire for

Mechanical Springs. Compared with GB/T 18983-2003, this Standard has the major

changes as follows.

--- Increase "GB/T 4336, GB/T 13298, GB/T 20123, GB/T 20125" to the Normative

References;

--- Increase "ultra-high-strength' level to the Classification and Code;

--- Modify the diameter range;

--- Increase the components to the new types of TDSiCr-B, TDSiCr-C and VDSiCrV

to the chemical compositions;

--- Modify "maximum surface decarburization allowable depth";

--- Increase the mechanical property indexes of TDSiCr-B, TDSiCr-C to "mechanical

properties of steel wires in static grade and medium fatigue grade";

--- Increase the mechanical property indexes of VDSiCrV to "mechanical properties

of steel wire in high fatigue grade";

--- Modify "allowable maximum depth of surface defect"; add description of the acid

leaching test method.

This Part was prepared by using the redrafted law and referring to ISO 8458-3.2002

Steel Wire for Mechanical Springs – Part 3.Oil-Hardened and Tempered Wire; the

degree of consistency with ISO 8458-3.2002 is not equivalent.

This Standard was proposed by China Iron and Steel Industry Association.

This Standard shall be under the jurisdiction of National Technical Committee for

Standardization of Steel (SAC/TC 183).

Drafting organizations of this Standard. Sinosteel Zhengzhou Research Institute of

Steel Wire Products Co., Ltd., Tianjin Metallurgical Group Zhongxing Shengda Steel

Co., Ltd., Guangzhou Orsa Wire Science & Technology Co., Ltd., Baosteel Group

Nantong Wire Products Co., Ltd., Jiangsu Shenwang Group Cable Co., Ltd., Taibo

Steel Co., Ltd., and China Metallurgical Information and Standardization Institute.

Chief drafting staffs of this Standard. Zhang Fengshan, Jiang Ling, Zhang Yongbo,

Xing Xianqiang, Lin Xiuyan, Zhou Jianhua, Ren Cuiying, Wang Lingjun, Huang

Jianming, Wang Wenxi, Zhang Jun, Meng Zhaoxian, Zhang Honglong, Cui Tongquan,

Zhang Weidong, Li Changchun, Li Zhaoming, and Zhang Xiaoguang.

The historical edition replaced by this Standard is as follows.

--- GB/T 18983-2003.

Wire for Quenched and Tempered Springs

1 Scope

This Standard specifies the classification and code, ordering content, diameter,

appearance and permissible deviation, manufacturing method, technical requirements,

test methods, inspection rules, package, mark and quality certificate of wire for

quenched and tempered springs (hereinafter referred to as steel wire).

This Standard is applicable to the carbon and low alloy quenched-tempered circular-

section steel wire used for manufacturing various mechanical springs.

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 Method of Sampling Steel for Determination of Chemical Composition

and Permissible Variations for Product Analysis

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 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

3 Classification and Code

4 Ordering Contents

The purchasing list or contract that orders products as per this Standard shall include

the following contents.

5 Diameter, Appearance and Permissible Deviation

6 Manufacturing Method

The steel wire is made through cold-drawing the wire rod and then quenched and

tempered it. The ultra-high-strength VDSiCrV steel wire shall be made through peeling

and flaw-detection.

7 Technical Requirements

8 Test Methods

The inspection items, sampling quantities, and test methods of steel wire shall be

performed as per the provisions of Table 8.

9 Inspection Rules