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GB/T 32184-2015 PDF in English


GB/T 32184-2015 (GB/T32184-2015, GBT 32184-2015, GBT32184-2015)
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GB/T 32184-2015: PDF in English (GBT 32184-2015)

GB/T 32184-2015 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.150.10 H 61 Extruded aluminum alloy flat bars and plates with high conductivity ISSUED ON. DECEMBER 10, 2015 IMPLEMENTED ON. JULY 1, 2016 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. Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative references ... 4  3 Requirements ... 5  4 Test methods ... 9  5 Inspection rules ... 10  6 Symbols, packaging, transportation, storage and quality certificate ... 12  7 Contents of the order form (or contract) ... 14  Foreword This Standard is drafted according to the rules given in GB/T 1.1-2009. This Standard was proposed by China Non-ferrous Metals Industry Association. This Standard shall be under the jurisdiction of the National Technical Committee for Standardization of Non-ferrous Metals (SAC/TC 243). Responsible drafting organizations of this Standard. Dongguan Token Aluminum Products Co., Ltd, Guangzhou Research Institute of Non-ferrous Metals, Fujian Xiangxin Aluminum Group Co., Ltd, Guangdong Haomei Aluminium Co., Ltd, Guangdong Xingfa Aluminium Co., Ltd, Guangdong JMA Aluminium Profile Factory (Group) Co., Ltd, Fujian Nanping Aluminium Co., Ltd, Shandong Yancon Light Alloy Co., Ltd, Chinalco Northwestern Aluminum Fabrication Plant, Southwest Aluminium (Group) Co., Ltd, and Northeast Light Alloy Co., Ltd. Main drafters of this Standard. He Xukun, You Yuping, Xu Fen, Xiang Shengqian, Luo Shun, Zhang Jianlei, Xia Xiuqun, Dai Yuexing, Chen Jingchun, Nie Bo, Zhou Xia, Cai Canming, Du Heng’an and Gao Xinyu. Extruded aluminum alloy flat bars and plates with high conductivity 1 Scope This Standard specifies the requirements, test methods, inspection rules, symbols, packaging, transportation, storage, and contents of the quality certificate and order form (or contract) of the extruded aluminum alloy flat bars and plates with high conductivity. This Standard is applicable to the extruded aluminum alloy flat bars and plates used in transmission, substation, distribution and other sectors (hereinafter referred to as “flat bars and plates”). 2 Normative references The following documents are essential to the application of this document. For dated references, only the editions with the dates indicated are applicable to this document. For undated references, only the latest editions (including all the amendments) are applicable to this document. GB/T 232 Metallic materials - Bend test GB/T 3048.2 Test methods for electrical properties of electric cables and wires - Part 2. Test of electrical resistivity of metallic materials GB/T 3190 Wrought aluminium and aluminium alloy - Chemical composition GB/T 3199 Wrought aluminium and aluminium alloy products - Packing, marking, transporting and storing GB/T 3246.1 Inspection method for structure of wrought aluminum and aluminum alloy products - Part 1. Inspection method for microstructure GB/T 4909.3 Test methods for bare wires - Part 3. Tensile test GB/T 7999 Optical emission spectrometric analysis method of aluminum and aluminum alloys GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values 3.6 Bending property For the extruded aluminum alloy flat bars and plates with the grade of 6101, BEND the wide surfaces at an angle of 90° with the nominal thickness as bending radius. There shall be no cracks on the wide surfaces. Other requirements shall be agreed upon by the supplier and demander, and shall be indicated in the order forms (or contracts) as well. 3.7 Microstructure There shall be no over-burnt microstructures on the flat bars and plates. 3.8 Appearance quality The surfaces of the flat bars and plates shall be flat and smooth. There shall be no cracks, bubbles and corrosion spots. There shall be no fins, burrs or rips on the rounded corners. 4 Test methods 4.1 Chemical composition 4.1.1 The analytical method of chemical compositions shall conform to the provisions of GB/T 20975 or GB/T 7999. USE the method specified in GB/T 20975 for referee analysis. During the calculation of “Al” content, TAKE the sum of the numerical values for analysis of the conventional analytic elements and the unconventional analytic elements suspected to be excessive as the “sum of element contents”. 4.1.2 USE the comparison method of rounding values to determine the numerical values for analysis. The rules of rounding off for numerical values shall conform to the relevant provisions of GB/T 8170. The round-off digits shall be the same with the limit digits specified in GB/T 3190. 4.2 Dimensional tolerances The dimensional rounding off and measurement shall conform to the provisions of YS/T 439-2012. 4.3 Tensile mechanical properties at room temperature The method for testing the tensile mechanical properties at room temperature shall conform to the provisions of GB/T 4909.3. 4.4 Resistivity > 280 ~ 500 13 > 500 ~ 1,200 20 5.6 Determination of the inspection results 5.6.1 When the chemical compositions of any test piece are unqualified, for the product whose melting sequence can be distinguished, DETERMINE the melting sequence represented by this test piece as non-conforming. INSPECT other melting sequences in succession. DELIVER the conforming products afterwards. If the products whose melting sequences cannot be distinguished, DETERMINE this batch of products as non-conforming. 5.6.2 When the dimensional tolerance of any test piece is unqualified, DETERMINE this batch of products as non-conforming. However, it is allowed to inspect one by one. DELIVER the conforming products afterwards. 5.6.3 When the tensile mechanical properties at room temperature of any test piece is unqualified, DOUBLE the number of test pieces taken from this batch of products for retesting. If all the retesting results are qualified, DETERMINE this batch of products as conforming. If some properties of the test pieces in the retesting results are still unqualified, DETERMINE this batch of products as non-conforming. 5.6.4 When the bending property of any test piece is unqualified, DETERMINE this batch of products as non-conforming. 5.6.5 When the resistivity of any test piece is unqualified, DETERMINE this batch of products as non-conforming. 5.6.6 When the microstructure of any test piece is unqualified, DETERMINE this batch of products as non-conforming. 5.6.7 When the appearance quality of any test piece is unqualified, DETERMINE this product as non-conforming. However, it is allowed to conduct re-inspection after removing the non-conforming section. DELIVER the conforming products afterwards. 6 Symbols, packaging, transportation, storage and quality certificate 6.1 Symbols 6.1.1 Product symbols ......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.