GB/T 3620.2-2023 PDF EnglishUS$80.00 · In stock · Download in 9 seconds
GB/T 3620.2-2023: Titanium and titanium alloy permissible variations of chemical composition for wrought product analysis 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 3620.2: Historical versions
Similar standardsGB/T 3620.2-2023: Titanium and titanium alloy permissible variations of chemical composition for wrought product analysis---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/GBT3620.2-2023 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.120.50 CCS H 64 Replacing GB/T 3620.2-2007 Titanium and Titanium Alloy Permissible Variations of Chemical Composition for Wrought Product Analysis Issued on. AUGUST 6, 2023 Implemented on. MARCH 1, 2024 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 4 2 Normative References... 4 3 Terms and Definitions... 4 4 Technical Requirements... 5ForewordThis 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 serves as a replacement of GB/T 3620.2-2007 Titanium and Titanium Alloys - Permissible Variations of Chemical Composition for Wrought Product Analysis. In comparison with GB/T 3620.2-2007, apart from structural adjustments and editorial modifications, the main technical changes are as follows. a) The content of the Scope is modified (see Chapter 1; Chapter 1 of Version 2007); b) The general principles of sampling are deleted (see 4.1 of Version 2007); c) The description of the applicability of the permissible variations of chemical composition is added (see 4.1.2); d) The permissible variations of the element W are added (see 4.1.3); e) The permissible variations of the elements O, Al, Cr, Mo, Mn, Cu, B, Zr and Y are modified (see 4.1.3; 4.4.3 of Version 2007); f) The requirements for sampling locations are modified (see 4.2; 4.2 of Version 2007); g) The analysis method YS/T 1262 for chemical composition is added (see 4.3). Please be noted that certain content of this document may involve patents. The institution issuing this document does not undertake the responsibility of identifying these patents. This document was proposed by China Non-ferrous Metals Industry Association. This document shall be under the jurisdiction of National Technical Committee on Nonferrous Metals of Standardization Administration of China (SAC/TC 243). The drafting organizations of this document. Baoji Titanium Industry Co., Ltd.; Baotai Group Co., Ltd.; China Nonferrous Metals Techno-Economic Research Institute Co., Ltd.; Xinjiang Xiangrun New Material Technology Co., Ltd.; CHINALCO Shenyang Nonferrous Metal Processing Co., Ltd.; Hunan Xiangtou Goldsky New Materials Co., Ltd.; Baowu Special Metallurgical Co., Ltd.; Baoji Top Titanium Industry Co., Ltd.; Youyan Engineering Technology Research Institute Co., Ltd. The main drafters of this document. Bai Huanhuan, Ma Zhongxian, Xie Chen, Bai Zhuihui, Zhang Jiangfeng, Qing Daga, Ma Jiakun, Yang Rong, Ye Hongchuan, Liu Jiatao, Li Junzhao, Li Xiaodong, Li Baoxia, Yu Yang, Feng Junning, Feng Yongqi, Gao Qi. This document was firstly issued in 1983, firstly revised in 1994 and secondly revised in 2007. This is the third revision. Titanium and Titanium Alloy Permissible Variations of Chemical Composition for Wrought Product Analysis1 ScopeThis document specifies the permissible variations of chemical composition for titanium and titanium alloy wrought product (plates, strips, foils, pipes, bars, wires, forgings, profiles and castings). This document is applicable to the demand-side’s check analysis and arbitration analysis of the chemical composition of the product. This document does not apply to the supply-side’s analysis of the chemical composition of the product, nor does it apply to the check analysis of changes in the content of impurity elements (such as. hydrogen, nitrogen and oxygen) caused by the demand-side’s reprocessing of the product.2 Normative ReferencesThe contents of the following documents constitute indispensable clauses of this document through the normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 4698 (all parts) Methods for Chemical Analysis of Titanium Sponge, Titanium and Titanium Alloys GB/T 31981 Methods of Sampling and Sample Preparation for Chemical Composition Analysis of Titanium and Titanium Alloy3 Terms and DefinitionsThe following terms and definitions are applicable to this document. 3.1 check analysis Chemical composition analysis conducted by the demand-side by taking samples from the processed products.4 Technical Requirements4.1 Permissible Variation of Chemical Composition 4.1.1 Unless otherwise specified in the product standard or order sheet, the permissible variation of chemical composition of titanium and titanium alloy wrought products shall comply with the stipulations of Table 1. 4.2 Sampling Method The sampling method of the analytical specimens of the chemical composition of titanium and titanium alloy shall comply with the stipulations of GB/T 31981. 4.3 Analytical Method of Chemical Composition 4.3.1 The analytical method of the chemical composition of titanium and titanium alloy wrought products shall comply with GB/T 4698 (all parts) or YS/T 1262.The analytical methods for elements not included in GB/T 4698 (all parts) or YS/T 1262 shall be determined by the demand-side and the supply-side through negotiation. 4.3.2 The arbitration analysis of the chemical composition of titanium and titanium alloy wrought products shall comply with the analytical method specified in the product standard; when the arbitration analysis method is not specified in the product standard, it shall be determined by the demand-side and the supply-side through negotiation. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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