BS IEC 60404-8-7 defines the grades of electrical steel strips and sheets with specified mechanical properties and magnetic polarization. In particular, BS IEC 60404-8-7 gives general requirements, mechanical properties, magnetic polarization, geometric characteristics, tolerances, and technological characteristics, as well as inspection procedures.
BS IEC 60404-8-7 applies to electrical steel strips and sheets intended for the construction of poles and rims of rotating electrical machines.
BS IEC 60404-8-7 on magnetic materials is relevant to:
Steel displays ferromagnetic properties as it is derived from iron.
BS IEC 60404-8-7 groups the grades of cold-rolled grain-oriented electrical steel strip and sheet in three classes:
As a manufacturer, compliance with BS IEC 60404-8-7 can ensure that properties such as low core losses, high flux density and permeabilities, meet the specific need of applications.
Best industry guidance on magnetic properties of steel as per BS IEC 60404-8-7 can be beneficial in making the right selection of materials used for the optimal performance of parts and overall applications in corrosive environments.
BS IEC 60404-8-7:2020 replaces the fourth edition published in 2017. The main changes compared to the previous edition are as follows:
IEC 60404-8-7 Ed.5.0