prBAS EN IEC 60404-8-1:2025

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.<br /> For information purposes only, this document provides values for the densities of the materials and the ranges of their chemical compositions.<br /> This fourth edition includes the following significant technical changes with respect to the previous edition:<br /> a) recently developed anisotropic REFeB hot deformed magnets and anisotropic HDDR REFeB bonded magnets are included;<br /> b) high energy Ca-La-Co ferrites stabilized by La and Co substitution are included;<br /> c) new and high-performance grades of REFeB and RE2Co17 sintered magnets and isotropic REFeN bonded magnets are added.