IEC 60404-13 Magnetic Materials - Test for Resistivity, Density and Stacking Factor of Electrical Steel Strip and Plate

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of IEC 60404-13 testing. This standard specifies methods used to determine the resistivity, density and stacking factor of grain-oriented and non-oriented electrical steel strip and plate.

These quantities are necessary to determine the physical properties of the material. Also, density is required to allow determined values ​​of magnetic polarization, resistivity and stacking factor to be determined.

As these properties are functions of temperature, measurements shall be made at an ambient temperature of (23 ±5) °C, unless specified in this document.

This edition includes the following important technical changes from the previous edition:

• The order of the density and resistivity sections has been changed and the title of the document has been revised to reflect this;
• The Van-der-Pauw method (Method R2) can also be applied to Epstein strip samples;
• The gas pycnometer method is introduced, and the liquid immersion method and the calculation method based on chemical composition are quoted;
• The requirements of the stacking factor division are changed, such as the tolerance of the dimensions of the test sample and the repeatability of the measurement;
• An example of an apparatus for determining the resistivity using a rectangular plate that was previously part of the main body of the text was migrated to form an informative;
• An example of the determination of density using the gas pycnometer method is included as informative Annex B;

An example of density determination based on calculation of silicon and aluminum content is included as informative.

EUROLAB assists manufacturers with IEC 60404-13 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.