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GB/T 26330-2023 English PDF

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GB/T 26330-2023: Clad metal strips of silver and silver alloys/copper and copper alloys
Status: Valid

GB/T 26330: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 26330-2023English489 Add to Cart 4 days [Need to translate] Clad metal strips of silver and silver alloys/copper and copper alloys Valid GB/T 26330-2023
GB/T 26330-2010English679 Add to Cart 3 days [Need to translate] Silver or silver alloy/copper or copper alloy clad strips Obsolete GB/T 26330-2010

PDF similar to GB/T 26330-2023


Standard similar to GB/T 26330-2023

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Basic data

Standard ID GB/T 26330-2023 (GB/T26330-2023)
Description (Translated English) Clad metal strips of silver and silver alloys/copper and copper alloys
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H68
Classification of International Standard 77.120.99
Word Count Estimation 24,255
Date of Issue 2023-11-27
Date of Implementation 2024-06-01
Older Standard (superseded by this standard) GB/T 26330-2010
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 26330-2023: Clad metal strips of silver and silver alloys/copper and copper alloys

---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 77:120:99 CCSH68 National Standards of People's Republic of China GB/T 26330-2010 Silver, silver alloy/copper, copper alloy composite strip Published on 2023-11-27 2024-06-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Category 1 4:1 Variety 1 4:2 Compound form 2 4:3 Availability status 3 4:4 Mark 3 5 Requirements 4 5:1 Chemical composition 4 5:2 Dimensions and tolerances 9 5:3 Mechanical properties10 5:4 Bonding fastness of cladding13 5:5 Side curvature 13 5:6 Surface roughness14 5:7 Appearance quality14 6 Test methods 14 6:1 Chemical composition 14 6:2 Size 14 6:3 Mechanical properties15 6:4 Composite bonding fastness 16 6:5 Side curvature 16 6:6 Surface roughness17 6:7 Appearance quality17 7 Inspection Rules 17 7:1 Inspection classification 17 7:2 Factory inspection 17 7:3 Type inspection 17 7:4 Determination Rule 18 8 Marking, packaging, transportation and storage18 8:1 Flag 18 8:2 Packaging18 8:3 Transport and storage19 Figure 1 Schematic diagram of positioning of strip cladding10 Figure 2 Schematic diagram of composite layer bonding fastness16 Figure 3 Measurement method of strip side curvature16 Table 1 Composition of strip varieties 1 Table 2 Strip composite form 3 Table 3 Chemical composition of cladding materials 5 Table 4 Chemical composition of base material 7 Table 5 Strip thickness, cladding thickness and allowable deviation 9 Table 6 Strip width, cladding width and allowable deviation 9 Table 7 Strip hardness 10 Table 8 Tensile strength and elongation after break of three-layer or above cladding tapes13 Table 9 Strip side curvature 14 Table 10 Test force 15 Table 11 Factory inspection items, sampling locations and quantities17 Table 12 Strip length 19

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 replaces GB/T 26330-2010 "Silver, silver alloy/copper, copper alloy composite strip": Compared with GB/T 26330-2010, except In addition to structural adjustments and editorial changes, the main technical changes are as follows: a) Changed the scope of application (see Chapter 1, Chapter 1 of the:2010 edition); b) Changed the composition of strip varieties (see Table 1, Table 1 of the:2010 edition); c) The composite form of coated inlaid strips and the multi-layer composite form are added (see Table 2); d) Delete the supply status 1/4 hard state (Y4) (see 3:4 and Table 8 of the:2010 version); e) The multi-layer grade has been changed (see Table 3, Table 6 of the:2010 version); f) The basic grade has been changed (see Table 4, Table 7 of the:2010 edition); g) The strip size and allowable deviation have been changed (see Table 5 and Table 6, Table 4 and Table 5 of the:2010 version); h) Changed the strip hardness requirements (see Table 7, Table 8 of the:2010 edition); i) Added requirements for tensile strength, elongation after break and test methods for cladding tapes with three layers or more (see 5:3:2 and 6:3:2); j) The requirements and test methods for the bonding strength of cladding have been changed (see 5:4:2, 6:4:1:2, 6:4:2, 4:6 and 5:6 of the:2010 edition); k) Changed the strip side curvature requirements (see 5:5, 4:5 of the:2010 edition); l) Changed the surface roughness requirements (see 5:6, 4:7 of the:2010 edition); m) Added chemical analysis methods for Au99:99 and Ag99:95 (see 6:1:2); n) Changed the cladding thickness measurement method (see 6:2:2, 5:2:2 of the:2010 edition); o) The hardness test method has been changed (see 6:3:1, 5:4 of the:2010 edition): Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed by China Machinery Industry Federation: This document is under the jurisdiction of the National Standardization Technical Committee for Instrument Functional Materials (SAC/TC419): This document was drafted by: Chongqing Sichuan Instrument Automation Co:, Ltd: Metal Functional Materials Branch, Chongqing Materials Research Institute Co:, Ltd:, Zhejiang Yibao Technology Co:, Ltd:, Chengdu Kaitian Electronics Co:, Ltd:, Zhejiang Shenhua Electronic Technology Co:, Ltd:, Tianjin Sanhuan Ona Technology Ltd: The main drafters of this document: Xu Yonghong, Yang Xianjun, Chen Ming, He Lunying, Liu Anli, Guo Kunshan, Ke Yizhen, Zhu Yahui, Xu Yuqian, Huang Lei, Ruan Haiguang, Qin Xiufang, Ren Xiaomei, Wei Hengli, An Hailu, Du Jili, Wu Yang: The previous versions of this document and the documents it replaces are as follows: ---First published as GB/T 26330-2010 in:2010; ---This is the first revision: Silver, silver alloy/copper, copper alloy composite strip

1 Scope

This document specifies the classification, requirements, inspection rules, marking, packaging, transportation and storage of silver and silver alloy/copper and copper alloy composite strips: Corresponding test methods are described: This document is applicable to two-layer, three-layer or multi-layer composite strips with cladding of silver and silver alloy, gold and gold alloy and base layer of copper and copper alloy: (hereinafter referred to as "strip") manufacturing and inspection:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: GB/T 228:1 Tensile testing of metallic materials Part 1: Room temperature test methods GB/T 4340:1 Vickers hardness test of metallic materials Part 1: Test methods GB/T 5121 (all parts) Chemical analysis methods for copper and copper alloys GB/T 5231 Processed copper and copper alloy grades and chemical composition GB/T 8888 Packaging, marking, transportation, storage and quality certificate of heavy non-ferrous metal processing products GB/T 11066 (all parts) Methods for chemical analysis of gold GB/T 11067 (all parts) Chemical analysis methods for silver GB/T 15072 (all parts) Methods for chemical analysis of precious metal alloys YS/T 370 Preparation method of metallographic samples of precious metals and their alloys

3 Terms and definitions

There are no terms or definitions to be defined in this document:

4 categories

4:1 Variety The strip is composed of clad material and base material: The composition of strip varieties is shown in Table 1: Table 1 Composition of strip varieties Multilayer Grassroots level Pure copper series, Oxygen-free copper series White copper series, copper nickel tin series, tin bronze series, brass series, beryllium copper series, copper nickel series, silicon series, silver oxygen-free copper series, others Ag ● ● - ● ● - - - - AgCu ● - - ● ● - - - ●

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