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IEC 60404-8-7-ed.5.0-RLV
Magnetic materials - Part 8-7: Specifications for individual materials - Cold-rolled grain-oriented electrical steel strip and sheet delivered in the fully-processed state
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STANDARD published on 9.9.2020
The information about the standard:
Designation standards: IEC 60404-8-7-ed.5.0-RLV
Publication date standards: 9.9.2020
SKU: NS-1093977
The number of pages: 44
Approximate weight : 132 g (0.29 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60404-8-7-ed.5.0-RLV :
IEC 60404-8-7:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60404-8-7:2020 defines the grades of cold-rolled grain-oriented electrical steel strip and sheet in nominal thicknesses of 0,20 mm, 0,23 mm, 0,27 mm, 0,30 mm and 0,35 mm. In particular, it gives general requirements, magnetic properties, geometric characteristics, tolerances and technological characteristics, as well as inspection procedures. This document applies to Goss textured grain-oriented electrical steel strip and sheet supplied in the final annealed condition in coils or sheets, and intended for the construction of magnetic circuits. The grades are grouped into three classes: - conventional grades; - high permeability grades; - magnetic domain refined high permeability grades. They correspond to Class C22 of IEC 60404-1. This edition includes the following significant technical changes with respect to the previous edition: - insertion of a third class of grain-oriented electrical steels for magnetic domain refined high permeability grades; - introduction of the single sheet tester (SST) method as reference measurement method for this third class of material together with a conversion factor for transposition of the SST measurement results to equivalent Epstein values; - update of the electrical steel range to take account of the current offers and demands of grades.
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