GB/T 20509-2023 English PDF

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GB/T 20509-2023: Copper and copper alloys drawing for contacting materials of electric locomotives
Status: Valid

GB/T 20509: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20509-2023	259	Add to Cart	3 days	Copper and copper alloys drawing for contacting materials of electric locomotives	Valid
GB/T 20509-2006	319	Add to Cart	3 days	Copper and copper alloys drawing stock for the contacting materials of electric locomotives	Obsolete

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Basic data

Standard ID: GB/T 20509-2023 (GB/T20509-2023)
Description (Translated English): Copper and copper alloys drawing for contacting materials of electric locomotives
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H62
Classification of International Standard: 77.150.30
Word Count Estimation: 12,156
Date of Issue: 2023-05-23
Date of Implementation: 2023-12-01
Older Standard (superseded by this standard): GB/T 20509-2006
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 20509-2023: Copper and copper alloys drawing for contacting materials of electric locomotives

---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 77:150:30 CCSH62 National Standards of People's Republic of China Replacing GB/T 20509-2006 Copper and copper alloy wire blanks for electric locomotive contact materials Released on 2023-05-23 2023-12-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting: This document replaces GB/T 20509-2006 "Copper and Copper Alloy Wire Blanks for Electric Locomotive Contact Materials", and is consistent with GB/T 20509-2006 In addition to structural adjustments and editorial changes, the main technical changes are as follows: a) The scope of application of the standard has been changed, the diameter range of copper wire blanks: changed from "18mm~25mm" to "18mm~34mm" (see Chapter 1, Chapter 1 of the:2006 edition); b) Added seven grades of TSn0:15, TSn0:3, TSn0:5, TMg0:25, TMg0:35, TMg0:45, TCr0:6-0:1, deleted QSn0:4 grade (see Table 1, Table 1 of the:2006 edition); c) Added 1/2 hard state, changed the state representation method, changed from "R" to "M30, M20, H02, TH04" (see Table 1, Table 1 of the:2006 edition); d) The chemical composition, mechanical properties and electrical performance requirements corresponding to the newly added grades are added (see 5:1, 5:3, 5:4); e) Changed the mechanical performance indicators of the T2 brand (see Table 3, see Table 3 of the:2006 edition); f) Changed the requirements for "grain size" (see 5:5, see 3:7 of the:2006 edition); g) Added the requirement of "internal quality" (see 6:6); h) Delete the requirement of "torsional characteristics" and the corresponding test method (see 3:5, 4:4 of the:2006 edition); i) Deleted the "arbitration test for resistivity" (see 4:5:3 of the:2006 edition); j) Changed the billet assembly requirements from "each batch should be composed of the same grade, state and specification" to "each batch should be composed of the same coil of copper wire composition" (see 7:2, see 5:2 of the:2006 edition); k) The sampling requirements have been changed (see Table 6, see Table 6 of the:2006 edition): Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by China Nonferrous Metals Industry Association: This document is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243): This document was drafted by: China Copper (Kunming) Copper Co:, Ltd:, Xinchengrui Technology Co:, Ltd:, Ningbo Jintian Copper (Group) Co:, Ltd: Company, Youyan Engineering Technology Research Institute Co:, Ltd:, Xi'an Sirui Advanced Copper Alloy Technology Co:, Ltd:, Zhejiang Libo Industrial Co:, Ltd:, China Railway Construction Electrification Bureau Group Kangyuan New Material Co:, Ltd: The main drafters of this document: Guan Guisheng, Yang Zhiyuan, Liu Kejie, Chao Guohui, Zhou Bin, Hua Siming, He Jianhui, Xu Gaolei, Liu Wen, Qiu Guiqun, Niu Zhanxian, Hu Zhongwei, Sun Jiyuan, Lu Chao, Wang Congli, Cao Huiyang, Li Ming, Deng Rui, Peng Lijun, Fu Jie, Wu Bin, Zhao Desheng, Huang Guojie, Xie Haofeng, Xiang Yanlong, Zhang Xiaoying, Ning Xuerong: This document was first published in:2006, and this is the first revision: Copper and copper alloy wire blanks for electric locomotive contact materials

1 Scope

This document specifies the classification, marking, technical requirements, Test methods, inspection rules, marking, packaging, transportation, storage and accompanying documents and order form: This document is applicable to copper and copper alloy wire blanks used as contact materials for electrified railway electric locomotives with a diameter of 18mm~34mm:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 3048:2 Test methods for electrical properties of wires and cables - Part 2: Tests for resistivity of metallic materials GB/T 4909:2 Test methods for bare wires Part 2: Dimensional measurement GB/T 4909:3 Test methods for bare wires Part 3: Tensile test GB/T 5121 (all parts) Methods for chemical analysis of copper and copper alloys GB/T 5231 Processed copper and copper alloy grades and chemical composition GB/T 8170 Numerical rounding off rules and expression and determination of limit values GB/T 29997 Copper and copper alloy rod and wire eddy current flaw detection method YS/T 347 Method for Determination of Average Grain Size of Copper and Copper Alloys

3 Terms and Definitions

This document does not have terms and definitions that need to be defined:

4 Classification and labeling

4:1 Product classification The classification, grade, code, state and specification of copper wire blanks shall comply with the provisions in Table 1: Table 1 Grade, code, status and specification Classification grade code status Specification mm Pure copper T2 T11050 Silver Copper TAg0:1 T11210 Hot extrusion (M30) 1/2 Hard (H02) Hot rolled (M20) Hot extrusion (M30) 1/2 Hard (H02) 18~34 ......

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