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GB/T 3114-2023: Copper and copper alloy rectangular wire Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 3114: Historical versions
GB/T 3114-2023: Copper and copper alloy rectangular wire---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT3114-2023GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.150.30 CCS H 62 Replacing GB/T 3114-2010 Copper and copper alloy rectangular wire ISSUED ON: AUGUST 06, 2023 IMPLEMENTED ON: MARCH 01, 2024 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 6 4 Classification and identification ... 6 5 Technical requirements ... 8 6 Test methods ... 14 7 Inspection rules ... 15 8 Marking, packaging, transportation, storage and accompanying documents ... 18 9 Order form content... 19ForewordThis document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents. This document replaces GB/T 3114-2010 Copper and copper alloy rectangular wire. Compared with GB/T 3114-2010, in addition to structural adjustments and editorial changes, the main technical changes of this document are as follows: a) Add the chapter “Terms and definitions” (see Chapter 3); b) Add a total of 11 designations including TTe0.3, TTe0.5, H58, H66, H90, QSn8- 0.3, BZn12-24, BZn18-18, BZn25-18, BZn12-24-1.1, BZn12-37-1.5 and technical requirements for corresponding designations (see 4.1 and Chapter 5); c) Delete a total of 6 designations including H90B, HBi60-1.3, HSb60-0.9, HSb61- 0.8-0.5, QCr1-0.18, QCr1 and technical requirements for corresponding designations (see 3.1 and Chapter 4 of the 2010 edition); d) Change the state representation method of rectangular wires, from “soft (M)” to “softening annealing (O60)”, from “hard (Y)” to “hard (H04)”, and from “semi- hard (Y2)” to “1/2 hard (H02)” (see 4.1; 3.1 of the 2010 edition); e) Change the accuracy requirements for the width and thickness of rectangular wires (see 5.2.1; 4.2.1 of the 2010 edition); f) Change the requirements for side curvature of rectangular wires (see 5.2.2; 4.2.2 of the 2010 edition); g) Add requirements for torsion (see 5.2.3); h) Delete the sharp corners in the edge shape and change the requirements for rounded corners (see Table 4; Table 5 of the 2010 edition); i) Change the regulations on the radius of curvature (R) of the round edge in the edge shape (see Table 5; Table 6 of the 2010 edition); j) Change the requirements for reverse bend performance from “When required by the user and specified in the contract, semi-hard wires and hard wires shall be subjected to reverse bend tests, no less than 3 times for semi-hard wires and no less than 2 times for hard wires, and no cracks shall occur at the bends” to “Rectangular wires can be subjected to reverse bend tests, and the specific requirements shall be agreed upon by both parties.” (See 5.4.1; 4.4 of the 2010 edition); Copper and copper alloy rectangular wire1 ScopeThis document specifies the classification and identification, technical requirements, test methods, inspection rules, as well as marking, packaging, transportation, storage, accompanying document and order form content of copper and copper alloy rectangular wire (hereinafter referred to as “rectangular wire”). This document applies to pure copper, brass, bronze and cupronickel rectangular wires for industrial use.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. GB/T 238, Metallic materials - Wire - Reverse bend test GB/T 239.1, Metallic materials - Wire - Part 1: Simple torsion test GB/T 2828.1, Sampling procedures for inspection by attributes. Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection 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 8170, Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 8888, Wrought heavy non-ferrous metal products - packing, marking, transportation, storing and certificate of quality GB/T 10567 (all parts), Wrought copper and copper alloys - Detection of residual stress GB/T 26303.2, Measuring methods for dimensions and shapes of wrought copper and copper alloy - Part 2: Rod, wire and profile GB/T 34505, Copper and copper alloy materials - Tensile testing at room temperature YS/T 336, Methods of fracture test for tube and rod of copper and copper alloys, nickel and nickel alloys YS/T 347, Copper and copper alloys - Estimation of average grain size 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, Sampling method of physical and chemical testing for copper and copper alloys3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply. 3.1 free roll Uncoiled roll-shaped rectangular wires that are freely formed in a certain direction and sequence. 3.2 close-packed roll Rectangular wires, wound layer by layer, arranged closely according to certain winding direction rules.4 Classification and identification4.1 Product classification The designation, code, state, specifications and supply method of rectangular wires shall comply with the provisions of Table 1. 5.9.2 When the weight per roll (reel) is less than or greater than 10% of the weight specified in Table 8, it is a lighter roll (reel) or a heavier roll (reel), and the number of lighter rolls (reels) or heavier rolls (reels) in each batch shall not exceed 10% of the total number of rolls (reels). 5.9.3 If the buyer has special requirements for the roll (reel) weight of rectangular wires, it shall be determined through negotiation between the supplier and the buyer.6 Test methods6.1 Chemical composition The chemical composition analysis of rectangular wires shall be carried out in accordance with the provisions of GB/T 5121 (all parts), YS/T 482 or YS/T 483. The arbitration shall be conducted in accordance with the provisions of GB/T 5121 (all parts). 6.2 Dimensions and their allowable deviation The overall dimensions and allowable deviations of rectangular wires shall be in accordance with the provisions of GB/T 26303.2. 6.3 Mechanical properties The room temperature tensile mechanical properties of rectangular wires shall be tested in accordance with the provisions of GB/T 34505. The test portions shall comply with the requirements of GB/T 34505. 6.4 Process performance 6.4.1 The reverse bend test of rectangular wires shall be carried out in accordance with the provisions of GB/T 238. 6.4.2 The torsion test of rectangular wires shall be carried out in accordance with the provisions of GB/T 239.1. 6.5 Grain size The grain size detection of rectangular wires shall be carried out in accordance with the provisions of YS/T 347. 6.6 Residual stress The residual stress inspection of rectangular wires shall be carried out in accordance with the provisions of GB/T 10567 (all parts). 6.7 Internal quality The internal quality inspection of rectangular wires shall be carried out in accordance with the provisions of YS/T 336. 6.8 Surface quality The surface quality of rectangular wires shall be inspected visually. 6.9 Roll (reel) weight The roll (reel) weight of rectangular wires shall be measured with measuring tools of corresponding accuracy.7 Inspection rules7.1 Inspection and acceptance 7.1.1 The rectangular wire shall be inspected by the supplier or a third party, to ensure that the product quality meets the requirements of this document and the order form. 7.1.2 The buyer may inspect the received products in accordance with the provisions of this document. If the inspection results are inconsistent with the provisions of this document and the order form, it shall be submitted to the supplier in writing within 3 months from the date of receipt of the product, and the supplier and the buyer shall negotiate and resolve. If an arbitration is required, the arbitration sampling shall be carried out jointly by the supplier and the buyer. 7.2 Batch Rectangular wires shall be submitted for inspection in batches. Each batch shall be composed of rectangular wires of the same designation, specification and condition. The weight of each batch shall not exceed 2 000 kg. After negotiation between the supplier and the buyer, when the batch of rectangular wires belongs to the same melting and casting heat, the weight of each batch shall not exceed 5 000 kg. 7.3 Inspection items The inspection items of rectangular wires are divided into ex-factory inspection items and type inspection items, as shown in Table 9. In any of the following situations, type inspection shall be carried out: a) during trial formulation appraisal of new products or old products transferred to another factory; b) when there are major changes in the raw materials and processes of the product, which may affect the performance of the product; c) when the product is put back on production after a time of suspension;8 Marking, packaging, transportation, storage andaccompanying documents 8.1 Marking, packaging, transportation and storage The marking, packaging, transportation and storage of rectangular wires shall be carried out in accordance with the provisions of GB/T 8888. 8.2 Accompanying documents Each batch of products shall be accompanied by accompanying documents, which should include the following documents in addition to supplier information, product information, number of this document, date of production or packaging date. a) Product quality guarantee: ● Main performance and technical parameters of the product; ● Product features (including the features of manufacturing process and raw materials); ● Responsibility for product quality; ● Quality certification obtained by the product and various analysis and inspection results checked and printed by the technical supervision department of the supplier. b) Product certification: ● Inspection items and their results or inspection conclusions; ● Batch number; ● Inspection date; ● Inspector’s signature or seal. c) Inspection report and finished product inspection report during product quality control. d) Product instructions: correct handling, use and storage methods. e) Other. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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