GB/T Translated English of Chinese Standard: GB/T NATIONAL STANDARD OF THE

Transcription

1 Translated English of Chinese Standard: GB/T GB NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA ICS H 62 GB/T Replacing GB/T Copper and copper alloy strip 铜及铜合金带材 GB/T How to BUY & immediately GET a full-copy of this standard? Search --> Add to Cart --> Checkout (3-steps); 3. No action is required - Full-copy of this standard will be automatically & immediately delivered to your address in 0~60 minutes. 4. Support: Sales@ChineseStandard.net. Wayne, Sales manager Issued on: May 31, 2017 Implemented on: December 1, 2017 Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People s Republic of China; Standardization Administration of the People s Republic of China. Page 1 of 18

2 Table of Contents Foreword Scope Normative references Requirements Test method Inspection rules Marking, packaging, transportation, storage and quality certificate Order (or contract) content Page 2 of 18

3 Foreword This Standard is drafted in accordance with the rules given in GB/T This Standard replaces GB/T Sheet of copper and copper strip. Compared with GB/T , the main changes in this Standard are as follows: - ADD the code name of copper and copper alloys; - MODIFY the designation and state of alloys; - ADD 3 designations, i.e. H66, BZn18-18 and BZn18-26, and the corresponding requirements; - ADD H08 state to designation QSn8-0.3; - MODIFY the thickness and width range of some strips; - MODIFY the mechanical property of some strips; - DELETE the provisions of Rockwell hardness (HRB); - MODIFY the Dimension measurement method TO The test method for dimension of strips is in accordance with the provisions of GB/T ; - ADD the reference to YS/T 482 Methods for analysis of copper and copper alloys - The atomic emission spectrometry and YS/T 483 Methods for analysis of copper and copper alloys - X-Ray fluorescence spectrometric (wavelength dispersive) ; - MODIFY the tensile test sample number according to the provisions of GB/T ; - ADD the provision of The sampling method shall comply with the provisions of YS/T 668; the sample for mechanical properties and process performance shall be prepared according to the provisions of YS/T 815 ; - ADD the provisions of the sampling direction of strips for bend test. This Standard is proposed by China Nonferrous Metals Industry Association. The Standard is under the jurisdiction of National Technical Committee on Nonferrous Metals of Standardization Administration of China (SAC/TC 243). Drafting organizations of this Standard: Chinalco Luoyang Copper Co., Ltd., Ningbo Xingye Shengtai Group Co., Ltd., Anhui Truchum Advanced Materials & Technology Co., Ltd., Taiyuan Jinxi Chunlei Copper Co., Ltd., Tongling Jinvi Copper Co., Ltd., Page 3 of 18

4 Copper and copper alloy strip 1 Scope This Standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage, quality certificates and order (or contract) contents of copper and copper alloy strips. This Standard applies to wrought copper and copper alloy strips for general purpose (hereinafter referred to as strips). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the dated edition cited applies. For undated references, the latest edition of the referenced document (including all amendments) applies. GB/T Metallic materials - Tensile testing - Part 1: Method of test at room temperature GB/T 232 Metallic materials - Bend test GB/T 351 Metallic materials - Resistivity measurement method GB/T Metallic materials - Vickers hardness test - Part 1: Test method GB/T 5121 (all parts) Methods for chemical analysis of copper and copper alloys GB/T 5231 Designation and chemical composition of wrought copper and copper alloys GB/T 6147 Test method for thermoelectric power of precision resistance alloys GB/T 6148 Test method for temperature-resistance coefficient of precision resistance alloys GB/T 8888 Wrought heavy non-ferrous metal products - Packing, marking, transportation, storing and certificate of quality GB/T Wrought copper and copper alloy plate, sheet and strip for general purposes - Dimensions and tolerances Page 5 of 18

5 GB/T Measuring methods for dimensions and shapes of wrought copper and copper alloys - Part 3: Sheets and strips YS/T 347 Copper and copper alloys - Estimation of average grain size YS/T 478 The method for electrical conductivity measurement of copper and copper alloys by use of eddy current YS/T 482 Methods for analysis of copper and copper alloys - The atomic emission spectrometry YS/T 483 Methods for analysis of copper and copper alloys - X-Ray fluorescence spectrometric (wavelength dispersive) YS/T 668 The sampling method of physical and chemical testing for copper and copper alloys YS/T 815 Preparation method of test pieces for mechanical and technological properties of copper and copper alloys 3 Requirements 3.1 Product classification Designation, state and specification The designation, state and specification of strips shall comply with the provisions of Table 1. Page 6 of 18

6 Strip GB/T 2059-H62 H02 high Chemical composition or strip GB/T 2059-T27600 H02 high The chemical composition of strips shall comply with the corresponding provisions in GB/T Dimension and its allowable deviation The dimension and its allowable deviation of strips shall comply with the corresponding provisions in GB/T The dimension and its allowable deviation exceeding the range of GB/T shall be determined by negotiation between the supply and demand parties. 3.4 Mechanical properties The mechanical properties of strips at room temperature shall comply with the provisions of Table 2. Page 9 of 18

7 thickness of strips exceed the allowable deviation. Defects such as mild oxidation color, oil stains, water stains and chromatic aberration that do not affect the use will not be used as the basis for discard. 4 Test method 4.1 Chemical composition The analysis method for the chemical composition of strips shall comply with the provisions of GB/T 5121 (all parts) or YS/T 482 or YS/T 483. The arbitration analysis method for the chemical composition shall comply with the provisions of GB/T 5121 (all parts). 4.2 Dimension and its allowable deviation The test method for the dimension and its allowable deviation of strips shall comply with the provisions of GB/T The thickness of strips shall be measured at a distance of 5 mm form the edge when the width of strips is > 100 mm; and measured at a distance of 3 mm form the edge when the width of strips is 100 mm. Beyond the measurement range, the excessive thickness deviation will not be used as the basis for discard. 4.3 Mechanical properties The tensile test method for strips shall comply with the provisions of GB/T The samples shall comply with the provisions of P02 in Table B.1 of Annex B, GB/T The Vickers hardness test shall be carried out according to the provisions of GB/T Bend test The bend test method for strips shall comply with the provisions of GB/T Electrical properties The test method for resistivity of strips shall comply with the provisions of GB/T 351 or YS/T 478, and the arbitration shall comply with the provisions of GB/T The test method for resistance temperature coefficient of strips shall comply with the provisions of GB/T The test method for thermo-electromotive force strips shall comply with the provisions of GB/T Grain size The test method for grain size of strips shall comply with the provisions of YS/T Page 15 of 18

8 4.7 Surface quality The surface quality of strips shall be inspected visually. 5 Inspection rules 5.1 Inspection and acceptance The strips shall be inspected by the technical supervision department of the supply party, to ensure that the product quality comply with the provisions of this Standard (or the order contract); the quality certificate shall be filled The demand party shall re-inspect the products received in accordance with the provisions of this Standard and the order (or contract). If the re-inspection result is inconsistent with the provisions of this Standard and the order (or contract), the demand party shall notify the supply party in paper form, to settle this issue through negotiation between the supply and demand parties. The objection about surface quality and dimensional deviation shall be raised within 1 month after receiving the products; other objection about quality shall be raised within 3 months after receiving the products. If arbitration is required, arbitration sampling will be conducted at the demand party s jointly by the supply and demand parties. 5.2 Batching The strips shall be submitted for acceptance in batches, AND each batch shall be composed of the same designation, state and specification. The weight of each batch shall generally be not more than kg (if the batch is from same melting, then the batch weight may be not more than kg). 5.3 Inspection items Each batch of strips shall be subject to the inspection of chemical composition, dimension and allowable deviation and surface quality Each batch of strips shall be subject to the inspection of mechanical properties (tensile test or hardness test). Select either tensile test or hardness test, if not specified in the contract, select the tensile test. When the tensile test is selected, the hardness test shall be carried out when it is required by the demand party and specified in the contract, and the hardness test results are for reference only. When the hardness test is selected, the tensile test shall be carried out when it is required by the demand party and specified in the contract, and the tensile test results are for reference only If required by the demand party and specified in the contract, the inspection of bend test, electrical properties and grain size shall also be carried out. 5.4 Sampling Page 16 of 18