EN IEC 60404-13:2018

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

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:
the sequence of the density and resistivity sections is changed and the title of the document revised to reflect this;
the van-der-Pauw method (Method R2) is also applicable to Epstein strip specimens;
the gas pyknometer method is introduced, and the liquid immersion method and the calculation method based on the chemical composition are quoted;
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;
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;
an example of the determination of the density by using the gas pyknometer method is added as an informative Annex B;
an example of the determination of density based on the calculation of silicon and aluminium contents is added as an informative Annex C.

Magnetische Werkstoffe - Teil 13: Verfahren der Messung des spezifischen elektrischen Widerstandes, der Dichte und des Stapelfaktors von Elektroband und -blech

Matériaux magnétiques - Partie 13: Méthodes de mesure de la résistivité, de la masse volumique et du facteur de foisonnement des bandes et tôles en acier électrique

L'IEC 60404-13:2018 spécifie les méthodes utilisées pour déterminer la résistivité, la masse volumique et le facteur de foisonnement des bandes et tôles en acier électrique à grains orientés et à grains non orientés. Ces grandeurs sont nécessaires pour établir les caractéristiques physiques du matériau. De plus, la masse volumique est nécessaire pour déterminer les valeurs spécifiées pour la polarisation magnétique, la résistivité et le facteur de foisonnement. Comme ces propriétés dépendent de la température, les mesures seront prises à une température ambiante de (23 ± 5) °C sauf spécification contraire dans le présent document. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
l'ordre des articles traitant de la masse volumique et de la résistivité a été modifié, ce qui a nécessité une révision du titre du document afin de refléter ce changement;
la méthode Van der Pauw (Méthode R2) est également applicable aux bandes Epstein;
la méthode utilisant un pycnomètre à gaz a été introduite, et la méthode en milieu liquide ainsi que la méthode de calcul basée sur la composition chimique sont citées;
les exigences de l'article traitant du facteur de foisonnement, comme la tolérance concernant les dimensions de l'éprouvette d'essai et la répétabilité des mesures, ont été modifiées;
un exemple de l'appareillage utilisé pour la détermination de la résistivité sur tôle rectangulaire, qui était intégré au corps du document dans l'édition précédente, a été déplacé pour former l'Annexe A informative;
un exemple de détermination de la masse volumique par la méthode utilisant un pycnomètre à gaz a été ajouté à l'Annexe B informative;
un exemple de détermination de la masse volumique par le calcul des teneurs en silicium et en aluminium a été ajouté à l'Annexe C informative.

Magnetni materiali - 13. del: Metode za meritve upornosti, gostote in skladnega faktorja električnih jeklenih trakov in pločevine (IEC 60404-13:2018)

Ta del standarda IEC 60404 določa metode, ki se uporabljajo za določanje upornosti, gostote ter skladnega faktorja zrnato orientiranih in neorientiranih električnih jeklenih trakov in pločevine. Te količine so potrebne za ugotavljanje fizikalnih lastnosti materiala. Podatek o gostoti pa je potreben tudi za ugotavljanje specifičnih vrednosti magnetne polarizacije, upornosti in skladnega faktorja.
Ker te lastnosti temeljijo na temperaturi, je treba meritve opraviti pri temperaturi okolja (23 ±5) °C, razen če je to določeno v tem dokumentu.

General Information

• Status: Published
• Publication Date: 25-Oct-2018
• Withdrawal Date: 13-Aug-2021
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• ICS: 29.030 - Magnetic materials
• Technical Committee: CLC/SR 68 - Magnetic alloys and steels
• Drafting Committee: IEC/TC 68 - IEC_TC_68
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 26-Oct-2018
• Completion Date: 26-Oct-2018
• Ref Project: SIST EN IEC 60404-13:2019 - Magnetic materials - Part 13: Methods of measurement of resistivity, density and stacking factor of electrical steel strip and sheet (IEC 60404-13:2018)

Relations

• Replaces: EN 60404-13:2007 - Magnetic materials - Part 13: Methods of measurement of density, resistivity and stacking factor of electrical steel sheet and strip
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2019
1DGRPHãþD
SIST EN 60404-13:2008
0DJQHWQLPDWHULDOLGHO0HWRGH]DPHULWYHXSRUQRVWLJRVWRWHLQVNODGQHJD
IDNWRUMDHOHNWULþQLKMHNOHQLKWUDNRYLQSORþHYLQH,(&
Magnetic materials - Part 13: Methods of measurement of resistivity, density and
stacking factor of electrical steel strip and sheet (IEC 60404-13:2018)
Magnetische Werkstoffe - Teil 13: Verfahren der Messung des spezifischen elektrischen
Widerstandes, der Dichte und des Stapelfaktors von Elektroband und -blech (IEC 60404-
13:2018)
Magnetic materials - Part 13: Methods of measurement of density, resistivity and
stacking factor of electrical steel sheet and strip (IEC 60404-13:2018)
Ta slovenski standard je istoveten z: EN IEC 60404-13:2018
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
29.030 Magnetni materiali Magnetic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60404-13

NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2018
ICS 17.220.20; 29.030 Supersedes EN 60404-13:2007
English Version
Magnetic materials - Part 13: Methods of measurement of
resistivity, density and stacking factor of electrical steel strip and
sheet
(IEC 60404-13:2018)
Matériaux magnétiques - Partie 13: Méthodes de mesure Magnetische Werkstoffe - Teil 13: Verfahren der Messung
de la résistivité, de la masse volumique et du facteur de des spezifischen elektrischen Widerstandes, der Dichte und
foisonnement des bandes et tôles en acier électrique des Stapelfaktors von Elektroband und -blech
(IEC 60404-13:2018) (IEC 60404-13:2018)
This European Standard was approved by CENELEC on 2018-08-14. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60404-13:2018 E

European foreword
The text of document 68/574/CDV, future edition 2 of IEC 60404-13, prepared by IEC/TC 68
"Magnetic alloys and steels" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 60404-13:2018.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-05-14
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2021-08-14
document have to be withdrawn
This document supersedes EN 60404-13:2007.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 60404-13:2018 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
ISO 1183-1:2012 NOTE Harmonized as EN ISO 1183-1:2012 (not modified)
ISO 2738:1999 NOTE Harmonized as EN ISO 2738:1999 (not modified)

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-121 -  International Electrotechnical Vocabulary - Part 121: - -
Electromagnetism
IEC 60050-221 -  International Electrotechnical Vocabulary. Chapter 221: - -
Magnetic materials and components
IEC 60404-2 -  Magnetic materials - Part 2: Methods of measurement EN 60404-2 -
of the magneticproperties of electrical steel sheet and
strip by means of an Epstein frame
IEC 60404-3 -  Magnetic materials - Part 3: Methods of measurement - -
of the magnetic properties of magnetic sheet and strip
by means of a single sheet tester
ISO 1183-3 -  Plastics - Methods for determining the density of non- EN ISO 1183-3 -
cellular plastics - Part 3: Gas pyknometer method

IEC 60404-13 ®
Edition 2.0 2018-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Magnetic materials –
Part 13: Methods of measurement of resistivity, density and stacking factor of

electrical steel strip and sheet

Matériaux magnétiques –
Partie 13: Méthodes de mesure de la résistivité, de la masse volumique et du

facteur de foisonnement des bandes et tôles en acier électrique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 29.030 ISBN 978-2-8322-5869-9

– 2 – IEC 60404-13:2018 © IEC 2018
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Determination of the resistivity. 7
4.1 General . 7
4.2 Principles of measurement . 7
4.2.1 Method of determining ρ for an Epstein strip specimen (Method R1) . 7
4.2.2 Method of determining ρ for a rectangular sheet specimen (Method R2)
with supplementary remarks for strip specimen . 8
4.2.3 Determination of thickness d . 9
4.3 Test specimen . 10
4.3.1 Epstein strip specimen . 10
4.3.2 Rectangular sheet specimen . 10
4.4 Apparatus . 10
4.4.1 Common requirements for Method R1 and Method R2 . 10
4.4.2 Requirements for Method R1 . 10
4.4.3 Requirements for Method R2 . 11
4.5 Measuring procedure . 11
4.5.1 Determination of the thickness d of the test specimen . 11
4.5.2 Procedure with strip specimen (Method R1) . 11
4.5.3 Procedure with rectangular sheet specimen (Method R2) . 11
4.6 Reproducibility . 11
4.7 Test report . 12
5 Determination of the density . 12
5.1 General . 12
5.2 Method based on the measurement of resistance (Method D1) . 13
5.2.1 Principles of measurement . 13
5.2.2 Test specimen . 14
5.2.3 Measuring procedure . 14
5.2.4 Reproducibility . 15
5.3 Gas pyknometer method (Method D2) . 15
5.3.1 Principles of measurement . 15
5.3.2 Test specimen . 15
5.3.3 Test apparatus . 15
5.3.4 Measuring procedure . 15
5.3.5 Reproducibility . 15
5.4 Test report . 15
6 Determination of the stacking factor. 16
6.1 General . 16
6.2 Test specimen . 16
6.3 Measuring procedure . 16
6.4 Reproducibility . 17
6.5 Test report . 17
Annex A (informative) An example of the apparatus for the measurement of the
resistivity using a rectangular sheet specimen (Method R2) . 19

IEC 60404-13:2018 © IEC 2018 – 3 –
Annex B (informative) An example of the determination of density using the gas
pyknometer method (Method D2) . 20
B.1 Overview. 20
B.2 Test specimen . 20
B.3 Apparatus . 21
B.4 Calibration . 21
B.5 Measuring procedure . 21
B.6 Repeatability . 22
Annex C (informative) Calculation of density based on silicon and aluminium content

(Method D4) . 23
Bibliography . 24

Figure 1 – Circuit for the measurement of resistance of an Epstein strip specimen
(Method R1) . 7
Figure 2 – Circuit for the measurement of resistance of a rectangular sheet specimen
(Method R2) . 8
Figure 3 – Experime
...