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Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 7233.2-2023: Steel castings - Ultrasonic testing - Part 2: Steel castings for highly stressed components Status: Valid GB/T 7233.2: Historical versions
Basic dataStandard ID: GB/T 7233.2-2023 (GB/T7233.2-2023)Description (Translated English): Steel castings - Ultrasonic testing - Part 2: Steel castings for highly stressed components Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J31 Classification of International Standard: 77.040.20 Word Count Estimation: 44,477 Date of Issue: 2023-05-23 Date of Implementation: 2023-12-01 Older Standard (superseded by this standard): GB/T 7233.2-2010 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 7233.2-2023: Steel castings - Ultrasonic testing - Part 2: Steel castings for highly stressed components---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. ICS 77:040:20 CCSJ31 National Standards of People's Republic of China Replace GB/T 7233:2-2010 Ultrasonic testing of steel castings Part 2: High pressure steel castings Steelcastings-Ultrasonic testing- (ISO 4992-2:2020, MOD) Released on 2023-05-23 2023-12-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee table of contentsPreface III Introduction V 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General requirements 2 5 Detection method 7 Appendix A (Informative) The structural changes of this document compared with ISO 4992-2:202015 Appendix B (informative) Technical differences between this document and ISO 4992-2:2020 and their reasons 17 Appendix C (Normative) Detection Resolution of the Complete Equipment (Instrument/Probe Combination) 20 Appendix D (informative) Sound beam diameter 21 Appendix E (Informative) Display Types Produced by Typical Defects 23 Reference 35forewordThis document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting: This document is the second part of GB/T 7233 "Ultrasonic Testing of Steel Castings": GB/T 7233 has issued the following parts: --- Part 1: General purpose steel castings; --- Part 2: High pressure steel castings: This document replaces GB/T 7233:2-2010 "Ultrasonic Testing of Steel Castings Part 2: High Pressure Steel Castings", and Compared with GB/T 7233:2-2010, in addition to structural adjustments and editorial changes, the main technical content changes are as follows: a) Changed the material in the scope of application of the standard (see Chapter 1, Chapter 1 of the:2010 edition); b) Added some terms and definitions (see 3:5, 3:7); c) Increase the maximum allowable limit of defects (see 4:3:3:1~4:3:3:3); d) Changed the general principles of testing and the standards cited by equipment (see 5:1, 5:3:1~5:3:3, 5:1, 5:3:1~ of the:2010 edition 5:3:3); e) Added couplant, preparation of casting surface for scanning, range setting, general principle of sensitivity adjustment, transmission correction, defect characteristics Standards cited for general principles of characterization and quantification (see 5:3:4, 5:4, 5:5:2, 5:5:3:1, 5:5:3:2, 5:5:7:1); f) Added reference test block (see 5:3:5): This document is modified to adopt ISO 4992-2:2020 "Ultrasonic Testing of Steel Castings Part 2: High Pressure Steel Castings": Compared with ISO 4992-2:2020, this document has more structural adjustments: The structural changes between the two documents are listed in the appendix Record A: Compared with ISO 4992-2:2020, this document has more technical differences, and vertical A single line (|) is marked: See Appendix B for a list of these technical differences and their causes: The following editorial changes were made to this document: --- 3:6, delete the note of 3:8 in ISO 4992-2; --- Removed references: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Foundry Standardization Technical Committee (SAC/TC54): This document is drafted by: Shenyang Foundry Research Institute Co:, Ltd:, Anhui Yingliu Group Huoshan Foundry Co:, Ltd:, Harbin Jiuzhou Group Co:, Ltd: Co:, Ltd:, Steel Research Nanoco Testing Technology Co:, Ltd:, Zhejiang Dalong Special Materials Co:, Ltd:, China Railway Baoqiao Group Co:, Ltd:, Lanzhou Lanzhou Stone Heavy Equipment Co:, Ltd:, Tongyu Heavy Industry Co:, Ltd:, Sanming Yijun Machinery Casting Co:, Ltd:, Jiangxi Fuling Casting Co:, Ltd: Company, Jinyun County Creer Testing Equipment Co:, Ltd:, Xiangyang Jinnaite Machinery Co:, Ltd:, Qingdao Changhui Pipe Industry Co:, Ltd:, Shandong Zhen Tingjinggong Piston Co:, Ltd:, Shandong Automobile Manufacturing Co:, Ltd:, Yantai Standard Metrology Inspection and Testing Center, Erzhong (Deyang) Heavy Equipment Co:, Ltd: Co:, Ltd:, Harbin Electric Machinery Co:, Ltd:, CITIC Heavy Industry Machinery Co:, Ltd:, CRRC Changchun Railway Vehicle Co:, Ltd:, China Cheqiqihar Vehicle Co:, Ltd:, North Heavy Industry Group Co:, Ltd: The main drafters of this document: Li Xingjie, Xu Xu, Guo Zongshan, Sun Chungui, Zhang Zhen, Hou Chunyu, Du Yingliu, Wang Lihua, Zhang Jianwei, Ren Qing, Song Quanzhi, Wang Hanchao, Ma Zhengqiang, Wang Qingyu, Jia Guanfei, Shen Haihong, Xu Wenda, Wang Kai, Lu Qifeng, Chen Tao, Tian Meng, Cheng Shishu, Zhang Yiru, Liu Yi, Wang Engang, Wu Fangming, Du Ming, Zhang Zhouxu, Shuai Dejun, Huang Liankai, Liu Yuanyi, Zu Yuwei, Pang Wenhua, Hu Zhonghua, Xu Lei, Qi Yinghao, Cui Lanfang, Liu Yuchang, Zhang Wen, Xie Jingtian, An Yang: The previous versions of the documents replaced by this document are as follows: ---GB/T 7233, first released in 1987; ---GB/T 7233:2, first released in:2010; --- This is the first revision:IntroductionThe establishment of ultrasonic testing standards for steel castings is to establish a set of optimal ultrasonic testing specifications for Provide guidance on matters needing attention in testing materials, testing equipment, testing process, testing evaluation, testing records, etc: GB/T 7233 "Ultrasonic Testing of Steel Castings" aims to establish principles and relevant regulations applicable to ultrasonic testing of steel castings for different purposes: Then, it is proposed to consist of two parts: --- Part 1: General purpose steel castings: The purpose is to establish general requirements and testing methods applicable to steel castings for general purposes: --- Part 2: High pressure steel castings: The purpose is to establish the general requirements and testing methods applicable to high pressure steel castings: GB/T 7233 "Ultrasonic Testing of Steel Castings" clarifies the core technical requirements and applicable scope of steel castings for different purposes through two parts: around: By establishing the scope of application, terminology, technical requirements, etc: of ultrasonic testing of various steel castings for different purposes, the testing personnel can be more clear, Accurate operation, so as to strictly inspect the quality of steel castings, and produce high-quality steel castings, so that the technical guidance of this document can be obtained To effectively play, provide a basis for improving casting technology and process, promote the control and improvement of the quality of high-pressure steel castings, and provide a basis for equipment manufacturing Provide technical support for industrial upgrading of the industry: Ultrasonic testing of steel castings Part 2: High pressure steel castings1 ScopeThis document specifies the general requirements and testing methods for ultrasonic testing of high pressure steel castings: This document applies to ultrasonic testing of high pressure steel castings that have undergone grain refinement heat treatment and whose wall thickness does not exceed 600mm: for wall thickness For steel castings larger than 600mm, if there is no special requirement, it can be implemented by reference: This document does not apply to austenitic and austenitic-ferritic duplex stainless steels: Martensitic stainless steels may be implemented as a reference:2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 9445 Qualification and certification of non-destructive testing personnel (GB/T 9445-2015, ISO 9712:2012, IDT) GB/T 12604:1 Nondestructive Testing Terminology Ultrasonic Testing (GB/T 12064:1-2020, ISO 5577:2017, MOD) GB/T 19799:1 Nondestructive Testing Ultrasonic Testing No: 1 Calibration Test Block (GB/T 19799:1-2015, ISO 2400:2012, IDT) GB/T 19799:2 Nondestructive Testing Ultrasonic Testing No: 2 Calibration Test Block (GB/T 19799:2-2012, ISO 7963:2006, IDT) GB/T 27664:1 Performance and inspection of ultrasonic testing equipment for non-destructive testing - Part 1: Instruments GB/T 27664:2 Performance and inspection of ultrasonic testing equipment for non-destructive testing - Part 2: Probes GB/T 27664:3 Performance and inspection of ultrasonic testing equipment for non-destructive testing - Part 3: Combined equipment GB/T 39239 Characterization and quantification of discontinuities in ultrasonic nondestructive testing (GB/T 39239-2020, ISO 16827: 2012, MOD) GB/T 39240 General Rules for Nondestructive Testing Ultrasonic Testing (GB/T 39240-2020, ISO 16810:2012, MOD) GB/T 39242 Ultrasonic testing sensitivity and range setting for non-destructive testing (GB/T 39242-2020, ISO 16811: 2012, MOD)3 Terms and DefinitionsGB/T 12604:1, GB/T 39240, GB/T 39242, GB/T 39239 and the following terms and definitions apply to this document: 3:1 Point-like defect point-likedefect A defect whose size is smaller than or equal to the beam diameter: Note: The dimensions in this document refer to the size of the defect in the direction of length, width and wall thickness: [Source: GB/T 7233:1-2023,3:1] ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 7233.2-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 7233.2-2023_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 7233.2-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7233.2-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
