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IEC 60404-8-1 Ed.4.0 Edition 09/2023
Magnetic materials - Part 8-1: Specifications for individual materials - Permanent magnet (magnetically hard) materials
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  • 268.3 / copy
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Abstract

IEC 60404-8-1:2023 specifies minimum values for the principal magnetic properties of, and dimensional tolerances for, technically important permanent magnet (magnetically hard) materials.
For information purposes only, this document provides values for the densities of the materials and the ranges of their chemical compositions.
This fourth edition includes the following significant technical changes with respect to the previous edition:
a) recently developed anisotropic REFeB hot deformed magnets and anisotropic HDDR REFeB bonded magnets are included;
b) high energy Ca-La-Co ferrites stabilized by La and Co substitution are included;
c) new and high-performance grades of REFeB and RE2Co17 sintered magnets and isotropic REFeN bonded magnets are added.

Status

Standard - Active

Origin

Technical Committee :
68 : Magnetic alloys and steels

Implementation

start of the vote on the project      date of ratification (dor)   
end of the vote on the project      date of anouncement (doa)   
start of the vote on the final project      date of publication (dop)   
end of the vote on the final project      date of withdrawal (dow)   


Publication Official Journal
of the Grand-Duchy of Luxembourg
Reference

Relations

Relations to older standards
IEC 60404-8-1 Ed. 3.0

International Classification for Standards (ICS codes) :

17.220.20 : Measurement of electrical and magnetic quantities
29.030 : Magnetic materials

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