IEC 60404-13:2018 

Magnetic materials - Part 13: Methods of measurement of resistivity, density and stacking factor of electrical steel strip and sheet


Do you need a multi-user copy?




IEC 60404-13:2018 specifies the methods used for determining the resistivity, density and stacking factor of grain-oriented and non-oriented electrical steel strip and sheet. These quantities are necessary to establish the physical characteristics of the material. Moreover, the density is necessary to allow specified values of the magnetic polarization, resistivity and stacking factor to be determined. 
Since these properties are functions of temperature, the measurements will be made at an ambient temperature of (23 ±5) °C except when specified in this document.
This edition includes the following significant technical changes with respect to the previous edition:
  1. the sequence of the density and resistivity sections is changed and the title of the document revised to reflect this;
  2. the van-der-Pauw method (Method R2) is also applicable to Epstein strip specimens;
  3. the gas pyknometer method is introduced, and the liquid immersion method and the calculation method based on the chemical composition are quoted;
  4. the requirements of the stacking factor section, such as the tolerance of the dimensions of the test specimen and the repeatability of measurement, are changed;
  5. an example of the apparatus for determination of the resistivity using a rectangular sheet, which was previously part of the main body of the text, is moved to constitute informative Annex A;
  6. an example of the determination of the density by using the gas pyknometer method is added as an informative Annex B;
  7. an example of the determination of density based on the calculation of silicon and aluminium contents is added as an informative Annex C.

Look inside

Additional information

Publication typeInternational Standard
Publication date2018-07-10
Available language(s)English/French
TC/SCTC 68 - Magnetic alloys and steelsrss
ICS29.030 - Magnetic materials
17.220.20 - Measurement of electrical and magnetic quantities
Stability date  2024
File size1553 KB

The following test report forms are related:

Share your publications

Learn how to share your publications with your colleagues, using networking options.

Payment information

Our prices are in Swiss francs (CHF). We accept all major credit cards (American Express, Mastercard and Visa, JCB and CUP), PayPal and bank transfers as form of payment.

Keep in touch

Keep up to date with new publication releases and announcements with our free IEC Just Published email newsletter.

Contact customer services

Please send your enquiry by email or call us on +41 22 919 02 11 between 09:00 – 17:00 CET Monday to Friday.