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GB/T 1173-2013: Casting aluminum alloy 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 1173: Historical versions
GB/T 1173-2013: Casting aluminum alloy---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/GBT1173-2013GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.120.10 J 31 Replacing GB/T 1173-1995 Casting aluminum alloy Issued on. SEPTEMBER 18, 2013 Implemented on. JUNE 1, 2014 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Alloy designation and code... 5 4 Technical requirements... 6 5 Test methods... 8 6 Test method... 8 Annex A (Informative) Recommended heat treatment process... 19 Annex B (Informative) Recommended single cast sample casting pattern... 21ForewordThis Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces GB/T 1173-1995 Casting aluminium alloys. Compared with GB/T 1173-1995, the main technical modifications in this Standard are as follows. - modified the chemical composition of the alloy; the mass fraction of Mg in ZAlSi7Mg1A (ZL114A) alloy was modified from 0.45% ~ 0.6% to 0.45% ~ 0.75%; the mass fraction of Be was modified from 0.04% ~ 0.07% to 0 ~ 0.07%; - added ZAlSi7Cu2Mg alloy designation; - modified the mass fraction of impurity element Sn from 0 ~ 0.01% to 0 ~ 0.05%; - added the inspection method for alloy chemical composition spectroscopy; - modified sampling methods for alloy chemical composition and mechanical properties; - added re-inspection rules for unqualified hardness. This Standard was proposed by and shall be under the jurisdiction of National Technical Committee on Casting of Standardization Administration of China (SAC/TC 54). Main drafting organization of this Standard. Shenyang Foundry Research Institute. The drafting organizations of this Standard. Anhui Hualing West Kitchen Equipment Co., Ltd., Tianjin Lizhong Alloy Group Co., Ltd., Fuxin Wanda Casting (Group) Co., Ltd., China Institute of Arms Science and Technology Ningbo Branch, Anhui Hengtai Power Technology Co., Ltd., Qingdao Zhengda Casting Co., Ltd., China Aviation Industry Corporation Beijing Aeronautical Materials Research Institute, FAW Foundry Ltd. Main drafters of this Standard. Feng Zhijun, Wang Mingchang, Ge Sujing, Gao Yuliang, Zhan Liang, Chen Dahui, Liu Chuang, Zhang Gaowei, Song Jingqing, Liu Guoli, Meng Ying. Versions of standard substituted by this Standard are. - GB/T 1173-1986, GB/T 1173-1995. Casting aluminum alloy1 ScopeThis Standard specifies the designation and code, technical requirements, test methods and inspection rules of casting aluminum alloy. This Standard is applicable to casting aluminum alloy used for aluminum alloy casting (excluding die casting).2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 228.1, Metallic materials - Tensile testing - Part 1.Method of test at room temperature GB/T 231.1, Metallic materials - Brinell hardness test - Part 1.Test method GB/T 5678, Sampling methods of spectrochemical analysis for cast alloys GB/T 7999, Optical emission spectrometric analysis method of aluminum and aluminum alloys GB/T 8063, Cast nonferrous metals and their alloys GB/T 8170, Rules of rounding off for numerical values & expression and judgement of limiting values3 Alloy designation and code3.1 Alloy designation representation method The casting aluminum alloy designation representation method shall be in accordance with the provisions of GB/T 8063. 3.2 Alloy code The alloy code in this Standard consists of Chinese phonetic alphabet "ZL" indicating casting aluminum and three Arabic numerals followed. 3.3 Alloy casting method, metamorphic machined code 3.4 Alloy heat treatment state code T8 - Solid solution treatment plus softening treatment4 Technical requirements4.1 Chemical composition 4.1.1 The chemical compositions of cast aluminum alloys are shown in Table 1. 4.1.2 Aluminum silicon series require to use sodium or strontium (intermediate alloy containing sodium salt and aluminum strontium) to carry out the deterioration treatment for deteriorated alloy. 4.1.3 When used in marine environment, the copper content in ZL101 alloy shall not exceed 0.1%. 4.1.4 In metallic casting, the maximum silicon content in ZL203 alloy shall be 3.0%. 4.1.8 The aluminum alloy product contact with food is not allowed to contain beryllium. Arsenic content is not more than 0.015%. Zinc content is not more than 0.3%. Lead content is not more than 0.05%. 4.1.9 When the total impurity content is used to express the impurity content, in the absence of specific provisions, the content of each unlisted element shall not exceed 0.05%. 4.2 Mechanical properties 4.2.1 Mechanical properties of single cast sample of casting aluminum alloy under sand casting, metal casting, melt mold casting and shell casting conditions are shown in Table 3. 4.2.2 The hardness values shall be inspected in accordance with Table 3 requirements required by the purchaser. 4.3 Heat treatment process The heat treatment process of alloy shall be agreed by the supplier and the purchaser. Refer to Annex A for the recommended heat treatment process.5 Test methods5.1 Chemical composition The inspection method for alloy chemical composition shall be carried out according to the provisions of GB/T 20975 or GB/T 7999. 5.2 Mechanical properties 5.2.1 The stretching test shall be carried out according to the provisions of GB/T 228.1.6 Test method6.1 Batch The same melting furnace times, the same heat treatment state shall be a test batch. 6.2 Sampling method 6.2.2 Mechanical properties 6.2.2.1 For a melting furnace, before casting or at half of the casting duration of all castings, carry out the casting of mechanical properties sample. When the casting duration is more than 4h, at the half of the second 4h, it shall cast mechanical properties sample to analyze, and so on. 6.3 Single cast sample 6.3.1 It can use sand casting, metal casting, melt mold casting and shell casting single casting rough samples for tensile test. 6.3.2 The shape and size of the sand casting sample are shown in Figure 1. The shape and size of the metal casting sample are shown in Figure 2. 6.3.3 Sand sample shall be cast in the absence of artificial cold sand. 6.3.4 Metallic sample shall be cast in metal mold. To ensure the quality of the single cast sample, the recommended sample design process is shown in Figure B.2. 6.3.5 The melt mold casting sample shall be completely cast in the shell mold, without artificial cooling. 6.4.4 Various casting methods allow the use of sand or metal mold samples to determine the mechanical properties. And the acceptance shall be carried out according to corresponding indicators of sand or metal mold samples. 6.4.5 Hardness can be repeated for heat treatment, but the total heat treatment should not be more than 3 times. The alloys after heat treatment, in addition to the hardness inspection, the alloy’s tensile strength and elongation shall be also inspected. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 1173-2013 be delivered?Answer: The full copy PDF of English version of GB/T 1173-2013 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 1173-2013_English with my colleagues?Answer: Yes. 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