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GB/T 5223-2025: Steel wire for prestressing of concrete
Status: Valid
GB/T 5223: Evolution and historical versions
| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| GB/T 5223-2025 | English | 599 |
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Steel wire for prestressing of concrete
| Valid |
| GB/T 5223-2014 | English | 105 |
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Steel wire for prestressing of concrete
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| GB/T 5223-2002 | English | 599 |
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Steel wires for the prestressing of concrete (ISO 6934-2: 1991, Steel for prestressing of concrete -- Part 2: Cold-drawn wire, NEQ) [including MODIFICATION 1]
| Obsolete |
| GB/T 5223-1995 | English | 439 |
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Steel wires for prestressed concrete
| Obsolete |
| GB 5223-1985 | English | 199 |
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Steel wire for prestressed concrete
| Obsolete |
Standard similar to GB/T 5223-2025 GB/T 5223.3 | GB/T 4697 | GB/T 4356 | GB/T 1301 | GB/T 6728 | Basic data | Standard ID | GB/T 5223-2025 (GB/T5223-2025) | | Description (Translated English) | Steel wire for prestressing of concrete | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H44 | | Classification of International Standard | 77.140.65 | | Word Count Estimation | 30,311 | | Date of Issue | 2025-10-05 | | Date of Implementation | 2026-05-01 | | Older Standard (superseded by this standard) | GB/T 5223-2014, GB/T 30828-2014 | | Issuing agency(ies) | State Administration for Market Regulation and Standardization Administration of China | GB/T 5223-2025: Steel wire for prestressing of concrete---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 77.140.65
CCSH49
National Standards of the People's Republic of China
Replaces GB/T 5223-2014 and GB/T 30828-2014
Steel wire for prestressed concrete
Part 2.Cold-drawnwire (MOD)
Published on 2025-10-05
Implemented on May 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Classification, Codes, and Markings 2
4.1 Classification and Codes 2
4.2 Mark 2
5.Order Details 2
6 Manufacturing process 3
6.1 Processing Method 3
6.2 Delivery Status 3
7 Technical Requirements 3
7.1 Mechanical Properties 3
7.2 Hydrogen embrittlement-sensitive stress corrosion performance 8
7.3 Fatigue performance 8
7.4 Surface Quality 8
7.5 Straightness of the steel wire 8
7.6 Dimensions, shape, weight, and permissible deviations 8
8.Test Methods 12
8.1 Tensile test 12
8.2 Upsetting head strength test 13
8.3 Stress relaxation performance test 13
8.4 Hydrogen embrittlement-sensitive stress corrosion test 13
8.5 Fatigue Test 13
8.6 Torsion Test 13
8.7 Repeated Bending Test 14
8.8 Bending Test 14
8.9 Straightness 14
8.10 External dimensions 14
8.11 Weight deviation 14
8.12 Numerical rounding 14
9.Inspection Rule 14
9.1 Inspection Category 14
9.2 Delivery Inspection 14
9.3 Eigenvalue Test 16
10 Packaging, marking, quality certificates, and transportation and storage 16
10.1 Packaging 16
10.2 Mark 16
10.3 Quality Certificate 16
10.4 Transportation and Storage 16
Appendix A (Informative) A table comparing the structural designations of this document with those of ISO 6934-2.2024 17
Appendix B (Informative) A summary of the technical differences between this document and ISO 6934-2.2024 and the reasons thereof (Table 19)
Appendix C (Normative) Characteristic Value Test Rule 21
C.1 Test batch 21
C.2 Sampling and testing quantity per batch. 21
C.3 Evaluation of Test Results 21
Reference 23
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document supersedes GB/T 5223-2014 "Steel Wire for Prestressed Concrete" and GB/T 30828-2014 "Medium-strength Steel Wire for Prestressed Concrete".
"Strength Steel Wire", compared with GB/T 5223-2014 and GB/T 30828-2014, this document mainly differs from GB/T 5223-2014 in that, apart from structural adjustments and editorial changes, the main differences are...
The technological changes are as follows.
---The maximum force and 0.2% yield strength of some specifications and strength grades of steel wire have been changed (see Tables 1 and 2, GB/T 5223-).
Tables 4 and 5 of.2014 and Table 4 of GB/T 30828-2014);
---Stress-relieving steel wires with a nominal tensile strength of 1960 MPa have been added (see Table 2);
---The technical requirements for Att when the nominal tensile strength is less than 1470 MPa have been revised (see Table 2, 7.3.1 of GB/T 30828-2014);
---Stress-relieving steel wires with a nominal tensile strength of 650 MPa have been removed (see Table 4 of GB/T 30828-2014);
---The technical requirements and test methods for stress corrosion protection of cold-drawn steel wire and stress-relieved steel wire have been revised (see 7.2, 8.4, GB/T 5223-).
(2014, 7.6, 8.8, Appendix A);
---Added two-sided and four-sided notched profiles for stress-relieved steel wires with a nominal tensile strength greater than 1370 MPa (see 7.6.1.3);
---The description of weight deviation has been revised (see 7.6.3, 8.3 of GB/T 5223-2014, and 6.5 of GB/T 30828-2014);
---The test method for measuring the weight per meter of steel wire has been deleted (see 8.3.1 of GB/T 5223-2014 and GB/T 30828-2014).
8.3.1);
---The test method for wire straightness has been modified (see 8.9, 7.4 of GB/T 5223-2014, and 7.5 of GB/T 30828-2014).
This document is modified to adopt ISO 6934-2.2024 "Steel for prestressed concrete - Part 2.Cold-drawn steel wire".
Compared with ISO 6934-2.2024, this document has undergone several structural adjustments. Appendix A lists the differences between this document and ISO 6934-2.
A list of chapter and section numbers for 2024.
This document differs significantly from ISO 6934-2.2024 in several technical aspects, which are detailed in the outer margins.
The vertical single line (丨) at the white position is marked, and Appendix B provides a list of the corresponding technical differences and their reasons.
The following editorial changes have been made to this document.
---The standard name has been changed to "Steel Wire for Prestressed Concrete";
---Informative reference documents GB/T 24242.2, GB/T 24242.4, GB/T 24238 and GB/T 4354 have been added.
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the China Iron and Steel Association.
This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
This document was drafted by. China Metallurgical Construction Research Institute Co., Ltd., Tianjin Yinlong Prestressed Materials Co., Ltd., and Shandong Xinda Earth Control Technology Co., Ltd.
Group Co., Ltd., Jiangxi Xinhua New Material Technology Co., Ltd., Beijing Tieke Shougang Rail Technology Co., Ltd., Tianjin Dejia
Prestressed Steel Strand Co., Ltd., Hunan Xianggang Metal Materials Technology Co., Ltd., China Academy of Railway Sciences Group Co., Ltd. Railway Construction
Research Institute, Guangxi Free Trade Zone Baochang Lianda New Materials Co., Ltd., Tianjin Chunpeng Prestressed Steel Strand Co., Ltd., Chongqing Chunpeng Prestressed
Steel Strand Co., Ltd., Shanxi Yellow River Water Conservancy Engineering Consulting Co., Ltd., Guangdong Yuehai Yuexi Water Supply Co., Ltd., Guizhou Baisheng Metal Materials Co., Ltd.
Limited Liability Company, Anhui Provincial Expressway Testing and Research Center Co., Ltd., CITIC Metal Co., Ltd., Jingye Steel Co., Ltd., Weihai
Yinxing Prestressed Wire Rod Co., Ltd., China Railway Bridge Engineering Bureau Group Co., Ltd., China Railway Seventh Group Zhengzhou Engineering Co., Ltd., and China Metallurgical Group Corporation
Testing and Certification Co., Ltd., Metallurgical Industry Information and Standardization Research Institute.
The main drafters of this document are. Zhu Jianguo, Chen Jie, Ren Cuiying, Xie Zhian, Fu Chongjian, Zhou Binbin, Tan Zhenyu, Zhang Yuesheng, He Jian, and Su Yonghua.
Xu Yijun, Bian Zhuangwei, Kou Shunhua, Gao Jinping, He Diaolin, Lü Shanglin, Li Xiaobin, Lin Chunlai, Xiao Rui, Li Zibing, Zhang Yongqing, Cao Xijun, Hao Qi
Xiao Feizhi, Yang Xiaojie, Yan Chongjian, He Yuming, Zhao Haifeng, Liu Lijun, Zhang Chengbing, Shi Long, Wang Yueqin, Bian Zhuangzhi, Mao Aiju, Liang Yumao, Li Rui,
Jiang Weihua, Zhang Jueling, Lü Yuheng, Dai Xiaomeng, Yan Yu, Miao Gaofeng, Chen Yansong, Su Diyao, Liu Hongjun, Wang Lingjun.
The document replaced by this document has been released in the following versions.
---GB/T 5223, first published in 1985, first revised in.1995, second revised in.2002, and third revised in.2014;
---GB/T 30828, first published in.2014.
Steel wire for prestressed concrete
1 Scope
This document specifies the classification, designation and marking, ordering details, manufacturing process, technical requirements, and testing methods for steel wires used in prestressed concrete.
Inspection rules, packaging, marking, quality certificates, and transportation and storage.
This document applies to cold-drawn steel wires for prestressed concrete and stress-relieving low-relaxation smooth round, spiral-ribbed, and indented steel wires, among which cold-drawn steel...
Wire is used only for pressure pipelines. Depending on the design and construction methods, it is suitable for manufacturing high-performance prestressed concrete structures using both pre-tensioning and post-tensioning methods. Other applications should...
The stress-relieving steel wire used should be referenced from this document.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 2103 General provisions for acceptance, packaging, marking and quality certificate of steel wire
GB/T 21839 Test methods for steel for prestressed concrete (GB/T 21839-2019, ISO 15630-3.2010, MOD)
YB/T 081 Metallurgical Technical Standards. Numerical Rounding and Judgment of Test Values
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
cold-drawn wire
Wire rod is a product formed by cold working through processes such as wire drawing to reduce its diameter, and is supplied as coiled steel wire.
3.2
Low-relaxation steel wire products are formed by stabilization treatment of steel wire.
3.3
relaxation
The phenomenon that stress decreases with time under isothermal constant length conditions.
3.4
helical rib wire
The surface of the steel wire has continuous, regular spiral ribs along its length (see Figure 1).
3.5
Indented wire
The surface of the steel wire has regularly spaced indentations along its length (see Figures 2, 3, and 4).
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