IEC 60404-8-5 defines the grades of steel sheet and strip with specified mechanical properties and magnetic permeability. In particular it gives the technological, mechanical and magnetic properties, the dimensional tolerances as well as the conditions of acceptance. This standard applies to material used for the poles and rims of rotating electrical machines.
IEC 60404-8-5 Ed. 2.0 en:2020
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Magnetic materials – Part 8-5: Specifications for individual materials – Electrical steel strip and sheet with specified mechanical properties and magnetic polarization