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Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 21220-2024: Soft magnetic metallic materials Status: Valid GB/T 21220: Historical versions
Basic dataStandard ID: GB/T 21220-2024 (GB/T21220-2024)Description (Translated English): Soft magnetic metallic materials Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K14 Classification of International Standard: 29.030 Word Count Estimation: 22,232 Date of Issue: 2024-09-29 Date of Implementation: 2024-09-29 Older Standard (superseded by this standard): GB/T 21220-2007 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 21220-2024: Soft magnetic metallic materials---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.National Standard of the People's Republic of China ICS 29.030CCS K 14 Soft magnetic metal materials (IEC 60404⁃8⁃6.2016, Magnetic materials-Part 8⁃6.Specifications for 2024-09-29 Release 2025-04-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Replace GB/T 21220-2007 Table of ContentsPreface Ⅲ 1 Scope...1 2 Normative references ...1 3 Terms, definitions and abbreviations 2 4 Categories...3 4.1 Overview 3 4.2 Alloy Type A (Pure Iron) 3 4.3 Alloy C (Fe-Si) 3 4.4 Alloy E (Iron Nickel) 3 4.5 Alloy F (Iron-Cobalt) 3 4.6 Iron-chromium soft magnetic alloy ...3 5 Brand ...3 6 General requirements 4 6.1 Chemical composition and production method 4 6.2 Supply Status 4 7 Technical requirements...4 7.1 Magnetic properties 4 7.2 Geometrical characteristics and tolerances 5 8 Inspection and testing 5 8.1 General Principles 5 8.2 Selection of samples 5 8.3 Magnetic properties 6 8.4 Geometrical properties and tolerances 6 8.5 Retest 7 9 Complaints 7 10 Order Contents...7 11 Certificates...7 Appendix A (Informative) Types and Magnetic Property Requirements of Iron-Chromium Soft Magnetic Alloys 14 References ...15ForewordThis 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 is required. This document replaces GB/T 21220-2007 "Soft Magnetic Metallic Materials". Compared with GB/T 21220-2007, the following changes have been made. In addition to the changes in performance, the main technical changes are as follows. -- Changed the typical composition ranges of copper, vanadium and other elements in E1 alloys (see Table 2, Table 1 of the.2007 edition); --Changed the amplitude permeability of E-type alloys under certain conditions (see Table 3, Table 2 of the.2007 edition); -- Changed the minimum magnetic polarization intensity specified for E-type alloys under certain conditions (see Table 4, Table 3 of the.2007 edition); --Added the minimum magnetic polarization intensity of F-type alloys at 2 800 A/m (see Table 4); --Changed the size limit range of E-type alloys (see Table 1, Table 5 of the.2007 edition). This document is modified to adopt IEC 60404-8-6.2016 "Magnetic materials Part 8-6.Single material specification soft magnetic metallic materials". Compared with IEC 60404-8-6.2016, this document has made the following structural adjustments. --Added 4.6 and 5.2; --5.1 corresponds to Chapter 5 of IEC 60404-8-6.2016; -- Table 1 corresponds to Table 5 of IEC 60404-8-6.2016, and Tables 2 to 5 correspond to Table 6 of IEC 60404-8-6.2016. Table 1~Table 4; --Informative Appendix A was added. The technical differences between this document and IEC 60404-8-6.2016 and their reasons are as follows. --Use GB/T 21219-2023, GB/T 43344-2023, GB/T 17951.2-2014, GB/T 2521.1-2016 and GB/T 2521.2-2016 replaces the referenced documents IEC 60404-1, IEC 60404-8-10, IEC 60404-8-3, IEC 60404-8-4, IEC 60404-8-7 (see Chapter 1) to adapt to my country's technical conditions; -- Replaced Chapter 3 Terms and Conditions with GB/T 2900.60-2002, GB/T 2900.74-2008 and GB/T 9637-2001 Define the reference documents IEC 60050-121, IEC 60050-131, IEC 60050-221 in the introduction to adapt to my country's technology condition; -- Use GB/T 17505-2016, GB/T 18253-2018, GB/T 13012-2008, GB/T 13888-2024, GB/T 3655-2022, GB/T 3658-2022, YB/T 4292-2012 and GB/T 21219-2023 will replace ISO 404, ISO 10474, IEC 60404⁃4, IEC 60404⁃7, IEC 60404⁃2, IEC 60404⁃6, IEC 60404⁃9, IEC 60404-1 (see 8.1, 8.3.1, 8.3.2, 8.4.3, Chapter 9 and Table 2) to adapt to my country's technical conditions; -- Deleted the reference to IEC 60404-7 in the aspect ratio of ES type specimens (see 3.2), as this document does not involve aspect ratio; -- Added the classification method, grade and related technical requirements of iron-chromium soft magnetic alloy (see 4.6, 5.2 and Appendix A) to adapt to my country's technical requirements. Technical conditions. The following editorial changes were made to this document. --In order to coordinate with my country's standards, the name of the standard was changed to "Soft Magnetic Metal Materials"; -- Added the informative appendix “Types and magnetic properties requirements of iron-chromium soft magnetic alloys”. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Technical Committee for Standardization of Electrical Alloys (SAC/TC 228). This document was drafted by. Nanning Bureau of China Southern Power Grid Ultra-High Voltage Transmission Company, Mingguang Sanyou Electric Power Technology Co., Ltd., Shaoxing Kangjian Materials Materials Technology Co., Ltd., Haiyan Zhongda Metal Electronic Materials Co., Ltd., Guilin Electric Science Research Institute Co., Ltd., Baotou Rare Earth Research Institute, Jiangxi Aite Magnetic Materials Co., Ltd., Zhejiang University of Technology, Hebei University of Technology, China University of Metrology, Anhui Xinrui New Materials Co., Ltd., Hangzhou Quadrant Technology Co., Ltd., Fushun Special Steel Co., Ltd., Tianjin University, Qingxian Zeming Langxi Electronic Devices Co., Ltd., Shougang Zhixin Qian'an Electromagnetic Materials Co., Ltd., Hengyang Jinzeli Special Alloy Co., Ltd., Xi'an Xidian High Voltage Switch Operating Mechanism Co., Ltd. Company, Zhejiang Ruipu Technology Co., Ltd., Qingtuo Group Co., Ltd., Dongguan Yumao Nanotechnology Co., Ltd., Anhui Zhici New Materials Science and Technology Co., Ltd. Technology Co., Ltd., Jiangxi Yuean New Materials Co., Ltd., Schneider Electric (China) Co., Ltd. Shanghai R&D Branch, Zhejiang Enhong Electronics Co., Ltd., Hunan Chuangyi Electronic Technology Co., Ltd., Zhejiang Qingshan Iron and Steel Co., Ltd., Ningbo Roche Magnetics Co., Ltd., Ningbo Ninggang Permanent Magnetic Materials Co., Ltd., Zhejiang Shuangyin Special Materials Technology Co., Ltd., Shandong Jianuo Electronics Co., Ltd., Hunan Aerospace Magnetics Technology Co., Ltd., Ningbo Xinglong Magnetic Technology Co., Ltd., and Foshan Mingfuxing Metal Materials Co., Ltd. The main drafters of this document are. Chen Jisheng, Ren Shigang, Shi Kang, Wu Hanmin, Cui Defeng, Liu Guozheng, Pi Jinbin, Che Shenglei, Wang Jingqin, Wu Qiong, Zhang Xiaohui, Zhao Yi, Yu Jie, Sha Junwei, He Peng, Hu Zhiyuan, Gao Guang, Cao Weichan, Li Li, Xi Feifei, Zhu Zhengquan, Deng Bili, Li Shangkui, Xu Rongchong, Zhang Li, Su Liliang, Ji Dengping, Luo Zhaoguan, Ma Hanyun, Liu Li, Liang Xize, Deng Xingmin, Huang Jianglun, Cai Mingxing, Yang Tonggang, Zhou Hanfeng, Xia Yajin, Guo Yan, and Huang Lanxia. The previous versions of this document and the documents it replaces are as follows. --First published in.2007 as GB/T 21220-2007; --This is the first revision. Soft magnetic metal materials1 ScopeThis document specifies the general requirements, magnetic properties and dimensional tolerances of pure iron, iron silicon, iron nickel, iron cobalt and iron chromium, and describes the corresponding inspection methods. The materials can be supplied in the form of bars, billets, sheets, strips or wires. Pure iron, iron silicon, iron nickel and iron cobalt materials are in accordance with GB/T 21219- 2023 Corresponds to the alloy materials specified in A, C1, C2, E1 to E4 and F1 to F3 in the magnetic material category. This document applies to relays. Magnetic materials pure iron and steel are covered by GB/T 43344-2023.GB/T 43344-2023 covers magnetic materials. The properties of pure iron (type A) and iron silicon (type C21, C22) are not as detailed as those specified in this document, but wider dimensions are given. tolerance. This document applies to the classification of non-oriented and oriented electrical steel (C21 and C22 types) at power frequency according to the total loss ratio, which is GB/T 17951.2- 2014, GB/T 2521.1-2016 and GB/T 2521.2-2016 covered. This document applies to non-oriented and oriented electrical steels at medium frequencies classified by specific total losses, which are covered by IEC 60404-8-8.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 2521.1-2016 Full process cold rolled electrical steel Part 1.Grain non-oriented steel strip (sheet) (IEC 60404-8-4. 2013, MOD) GB/T 2521.2-2016 Full process cold rolled electrical steel Part 2.Grain oriented steel strip (sheet) (IEC 60404-8-7..2008, MOD) GB/T 2900.60-2002 Electrotechnical terminology - Electromagnetism (eqv IEC 60050-121.1998) GB/T 2900.74-2008 Electrical terminology Circuit theory (IEC 60050-131..2002, MOD) GB/T 3655-2022 Method for measuring the magnetic properties of electrical steel strips (sheets) using the Epstein square ring (IEC 60404-2..1996, MOD) GB/T 3658-2022 Annular test specimens for magnetic properties of soft magnetic metal materials and powder metallurgy materials in the frequency range of 20 Hz to 100 kHz Measurement method (IEC 60404-6.2018, MOD) GB/T 9637-2001 Electrical terminology - magnetic materials and components (eqv IEC 60050-221.1990) GB/T 13012-2008 Measurement methods of DC magnetic properties of soft magnetic materials (IEC 60404-4..2000, IDT) GB/T 13888-2024 Method for measuring the coercivity (up to 160 kA/m) of magnetic materials in an open magnetic circuit (IEC 60404-7.2019, IDT GB/T 17505-2016 General technical requirements for delivery of steel and steel products (ISO 404.2013, MOD) GB/T 17951.2-2014 Semi-process cold-rolled non-oriented electrical steel strip (IEC 60404-8-3..2005, MOD) GB/T 18253-2018 Types of inspection documents for steel and steel products (ISO 10474.2013, IDT) GB/T 21219-2023 Classification of magnetic materials (IEC 60404-1.2016, MOD) GB/T 43344-2023 Specification for magnetic materials (iron and steel) for relays (IEC 60404-8-10.2009, IDT) YB/T 4292-2012 Test methods for geometric properties of electrical steel strips (sheets) IEC 60404-8-8 Magnetic materials Part 8-8.Specifications for individual materials Thin electrical steel sheets and strips for use at medium frequencies (Magnetic materials-Part 8⁃8.Specifications for individual materials-Thin electrical steel strip and sheet ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 21220-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 21220-2024_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 21220-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21220-2024 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. |
