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GB/T 1175-2018: Casting zinc alloys 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 1175: Historical versions
GB/T 1175-2018: Casting zinc alloys---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/GBT1175-2018GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.120.60 J 31 Replace GB/T 1175-1997 Casting zinc alloys Issued on. JULY 13, 2018 Implemented on. AUGUST 01, 2018 Issued by. State Administration for Market Regulation; Standardization Administration Committee. Table of ContentsForeword... 3 1 Scope... 4 2 Normative references... 4 3 Terms and definitions... 5 4 Alloy designations and codes... 5 5 Technical requirements... 6 6 Test methods... 7 7 Inspection rules... 7 Annex A (informative) Representation methods for casting zinc alloy codes... 9 Annex B (normative) Mechanical properties specimen and pouring riser system ... 10ForewordThis Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces GB/T 1175-1997 “Casting zinc alloys”. Compared with GB/T 1175-1997, the main technical changes are as follows. - added the normative description on technique codes (see 4.3); - modified the chemical composition and impurity element limits of alloys (see Table 1 of 5.1); - deleted Annex B of Edition 1997, added new Annex B. 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. Ningbo Donghao Casting Co., Ltd. The drafting organizations of this Standard. Zhangzhou Jinnuo Industrial Co., Ltd., Huoshan County Zhongfu Electromechanical Technology Co., Ltd., Guizhou Institute of Metallurgical Chemical Industry, Dongguan Shijie Huafeng Metal Co., Ltd., Shenzhen Lingwei Technology Co., Ltd., Guizhou Academy of Sciences, Ningbo Institute of Technology. Main drafters of this Standard. Yang Wenhao, Ma Zhengsong, Xue Tao, Du Zhongfu, Wu Jian, Yang Qian’en, Gu Wenquan, Liang Huancao, Du Jun, Xu Niansheng, Dai Jiaoyan, Pan Lingling. Version of standard substituted by this Standard is. - GB/T 1175-1997. Casting zinc alloys1 ScopeThis Standard specifies the alloy designations and codes, technical requirements, test methods and inspection rules for casting zinc alloys. This Standard is applicable to the zinc alloys for zinc alloy castings (excluding die castings).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 8063, Designation of cast nonferrous metals and their alloys GB/T 12689.1, Methods for chemical analysis of zinc and zinc alloys - Part 1.Determination of aluminum content - Chromazurol S-polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometry, Chromeazurol S spectrophotometric method and EDTA titrimetry3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.4 Alloy designations and codes4.1 Alloy designations See Table 1 for casting zinc alloy designations. The representation methods for designations shall comply with the provisions of GB/T 8063. 4.2 Alloy codes See Annex A for the representation methods of alloy codes.5 Technical requirements5.1 Chemical composition See Table 1 for chemical composition of casting zinc alloys.6 Test methods6.1 Chemical composition The analysis method of alloy chemical composition is carried out according to the provisions of GB/T 12689.1, GB/T 12689.3 ~ GB/T 12689.8 and GB/T 12689.10 respectively. 6.2 Mechanical properties7 Inspection rules7.1 Chemical composition Take a chemical composition specimen before casting (before the furnace), and No. Alloy designation Alloy code 7.2 Mechanical properties 7.2.1 Casting specimen of mechanical properties while casting specimen of chemical composition. 7.2.2 For each furnace (batch) of alloys, send 2 specimens of its casting mechanical properties (1 before furnace, 1 after furnace) at the first time to determine mechanical properties. 7.2.3 When the single casting specimen is found to have casting defects or the inspection result is unqualified due to the failure of the inspection itself, the inspection result shall be invalid.Annex A(informative) Representation methods for casting zinc alloy codes A.1 Code composition The alloy code consists of the letters Z, A (they are the first letters of the chemical element symbol for zinc and aluminum) and the subsequent Arabic numerals. The first of ZA or the first, second digits represents the modified integer value of the average percentage of aluminum. The average percentage of copper is rounded off to an integer value and is placed at the end of the code. The aluminum content and copper content is separated with a horizontal line (one byte long).Annex B(normative) Mechanical properties specimen and pouring riser system B.1 Use single casting specimen to inspect the mechanical properties of casting zinc alloys. The diameter of the specimen is φ12mm ± 0.25mm. The gauge length is 5 times the diameter. The specimen and pouring riser system are shown in Figure B.1 and Figure B.2. B.2 When sampling on the body, the specimen sizes are as shown in Figure B.3.Choose one. B.3 Allow φ12mm specimen be turned into φ10mm ± 0.1mm. Send the specimen for inspection. It may test the hardness of the alloy at the end of the specimen chuck. ......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 1175-2018 be delivered?Answer: The full copy PDF of English version of GB/T 1175-2018 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 1175-2018_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 1175-2018_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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