ICS29.030

CCSK14

中華人民共和國國家標準

GB/T21220—2024

代替GB/T21220—2007

軟磁金屬材料

Softmagneticmetallicmaterials

（IEC60404?8?6：2016，Magneticmaterials—Part8?6：Specificationsfor

individualmaterials—Softmagneticmetallicmaterials，MOD）

2024?09?29發布2024?09?29實施

國家市場監督管理總局

國家標準化管理委員會發布

GB/T21220—2024

目次

前言··························································································································Ⅲ

1范圍·······················································································································1

2規范性引用文件········································································································1

3術語、定義和縮寫······································································································2

4分類·······················································································································3

4.1概述·················································································································3

4.2合金A類（純鐵）··································································································3

4.3合金C類（鐵硅）··································································································3

4.4合金E類（鐵鎳）··································································································3

4.5合金F類（鐵鈷）··································································································3

4.6鐵鉻軟磁合金·····································································································3

5牌號·······················································································································3

6一般要求·················································································································4

6.1化學成分和生產方法····························································································4

6.2供貨狀態···········································································································4

7技術要求·················································································································4

7.1磁性能··············································································································4

7.2幾何特性及公差··································································································5

8檢驗和測試··············································································································5

8.1通則·················································································································5

8.2試樣的選擇········································································································5

8.3磁性能··············································································································6

8.4幾何特性和公差··································································································6

8.5復驗·················································································································7

9申訴·······················································································································7

10訂貨單內容············································································································7

11證書·····················································································································7

附錄A（資料性）鐵鉻軟磁合金類別及磁性能要求······························································14

參考文獻····················································································································15

Ⅰ

GB/T21220—2024

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結構和起草規則》的規

定起草。

本文件代替GB/T21220—2007《軟磁金屬材料》，與GB/T21220—2007相比除結構調整和編輯

性改動外，主要技術變化如下：

——更改了E1類合金中的銅、釩等元素典型成分范圍（見表2，2007年版的表1）；

——更改了E類合金在某些條件下的振幅磁導率（見表3，2007年版的表2）；

——更改了E類合金在某些條件下的最低磁極化強度規定值（見表4，2007年版的表3）；

——增加了F類合金在2800A/m條件下最低磁極化強度的規定（見表4）；

——更改了E類合金的尺寸限制范圍（見表1，2007年版的表5）。

本文件修改采用IEC60404?8?6：2016《磁性材料第8-6部分：單項材料規范軟磁金屬材料》。

本文件與IEC60404?8?6：2016相比做了下述結構調整：

——增加了4.6、5.2；

——5.1對應IEC60404?8?6：2016的第5章；

——表1對應IEC60404?8?6：2016的表5，表2~表5分別對應IEC60404?8?6：2016的

表1~表4；

——增加了資料性附錄A。

本文件與IEC60404?8?6：2016的技術差異及其原因如下：

——用GB/T21219—2023、GB/T43344—2023、GB/T17951.2—2014、GB/T2521.1—2016和

GB/T2521.2—2016替換了第1章范圍中的引用文件IEC60404?1、IEC60404?8?10、

IEC60404?8?3、IEC60404?8?4、IEC60404?8?7（見第1章），以適應我國的技術條件；

——用GB/T2900.60—2002、GB/T2900.74—2008和GB/T9637—2001替換了第3章術語和

定義引導語中的引用文件IEC60050?121、IEC60050?131、IEC60050?221，以適應我國的技術

條件；

——用GB/T17505—2016、GB/T18253—2018、GB/T13012—2008、GB/T13888—2024、

GB/T3655—2022、GB/T3658—2022、YB/T4292—2012和GB/T21219—2023分別替換

了ISO404、ISO10474、IEC60404?4、IEC60404?7、IEC60404?2、IEC60404?6、IEC60404?9、

IEC60404?1（見8.1、8.3.1、8.3.2、8.4.3、第9章和表2），以適應我國的技術條件；

——刪除了E.S型試樣長徑比中引用的IEC60404?7（見3.2），因本文件未涉及長徑比；

——增加了鐵鉻軟磁合金分類方法、牌號及相關技術要求（見4.6、5.2和附錄A），以適應我國的技

術條件。

本文件做了下列編輯性改動：

——為與我國標準協調，將標準名稱改為《軟磁金屬材料》；

——增加了資料性附錄“鐵鉻軟磁合金類別及磁性能要求”。

請注意本文件的某些內容可能涉及專利。本文件的發布機構不承擔識別專利的責任。

本文件由中國電器工業協會提出。

本文件由全國電工合金標準化技術委員會（SAC/TC228）歸口。

本文件起草單位：中國南方電網超高壓輸電公司南寧局、明光三友電力科技有限公司、紹興康健材

料科技有限公司、海鹽中達金屬電子材料有限公司、桂林電器科學研究院有限公司、包頭稀土研究院、

Ⅲ

GB/T21220—2024

江西艾特磁材有限公司、浙江工業大學、河北工業大學、中國計量大學、安徽鑫瑞新材料有限公司、杭州

象限科技有限公司、撫順特殊鋼股份有限公司、天津大學、青縣擇明朗熙電子器件有限公司、首鋼智新

遷安電磁材料有限公司、衡陽市金則利特種合金股份有限公司、西安西電高壓開關操動機構有限責任

公司、浙江瑞浦科技有限公司、青拓集團有限公司、東莞市昱懋納米科技有限公司、安徽智磁新材料科

技有限公司、江西悅安新材料股份有限公司、施耐德電氣（中國）有限公司上海研發分公司、浙江恩鴻

電子有限公司、湖南創一電子科技股份有限公司、浙江青山鋼鐵有限公司、寧波市羅氏磁業有限公司、

寧波寧港永磁材料有限公司、浙江雙銀特材科技有限公司、山東嘉諾電子有限公司、湖南航天磁電科技

有限公司、寧波興隆磁性技術有限公司、佛山市明富興金屬材料有限公司。

本文件主要起草人：陳極升、任世剛、石康、吳漢民、崔得鋒、劉國征、皮金斌、車聲雷、王景芹、吳瓊、

張曉輝、趙毅、于杰、沙軍威、和鵬、胡志遠、高廣、曹偉產、李立、奚飛飛、朱政權、鄧畢力、李上奎、

許礽翀、張麗、蘇立良、季燈平、羅招官、馬漢云、劉李、梁西澤、鄧興民、黃將侖、蔡明星、楊同綱、周焊峰、

夏亞金、郭艷、黃嵐霞。

本文件及其所代替文件的歷次版本發布情況為：

——2007年首次發布為GB/T21220—2007；

——本次為第一次修訂。

Ⅳ

GB/T21220—2024

軟磁金屬材料

1范圍

本文件規定了純鐵、鐵硅、鐵鎳和鐵鈷、鐵鉻的一般要求、磁性能及尺寸公差，描述了相應檢驗方

法。材料可以棒材、坯、片材、帶材或線材的形式供貨，純鐵、鐵硅、鐵鎳和鐵鈷材料與GB/T21219—

2023磁性材料類別中的A，C1，C2，E1至E4及F1至F3規定的合金材料相對應。

本文件適用于繼電器的磁性材料純鐵和鋼被GB/T43344—2023涵蓋，GB/T43344—2023在磁

性能上對純鐵（A類）和鐵硅（C21、C22類）的規定條款不如本文件規定的細，但給出了更寬的尺寸

公差。

本文件適用于工頻下無取向和取向電工鋼（C21及C22類）按比總損耗分類，被GB/T17951.2—

2014、GB/T2521.1—2016和GB/T2521.2—2016涵蓋。

本文件適用于按比總損耗分類的中頻下的無取向和取向電工鋼，它們被IEC60404?8?8涵蓋。

2規范性引用文件

下列文件中的內容通過文中的規范性引用而構成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用于

本文件。

GB/T2521.1—2016全工藝冷軋電工鋼第1部分：晶粒無取向鋼帶（片）（IEC60404?8?4：

2013，MOD）

GB/T2521.2—2016全工藝冷軋電工鋼第2部分：晶粒取向鋼帶（片）（IEC60404?8?7：2008，

MOD）

GB/T2900.60—2002電工術語電磁學（eqvIEC60050?121：1998）

GB/T2900.74—2008電工術語電路理論（IEC60050?131：2002，MOD）

GB/T3655—2022用愛潑斯