EN 60404-1:2017

Magnetic materials - Part 1: Classification

IEC 60404-1:2016 is available as IEC 60404-1:2016 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60404-1:2016(E) is intended to classify commercially available magnetic materials. The term "magnetic materials" denotes substances where the application requires the existence of ferromagnetic or ferrimagnetic properties. The classification of magnetic materials is based upon the generally recognized existence of two main groups of products: - soft magnetic materials (coercivity less than or equal to 1 000 A/m); - hard magnetic materials (coercivity greater than 1 000 A/m). This edition includes the following significant technical changes with respect to the previous edition: a) Removal of all tables and values describing typical properties of the material to be consistent with the aim of the document to be a classification and not a specification. b) Enlargement of the Ni content for the classes E1 and E3. c) Enlargement of the Co content for the classes F3. d) Addition of a new class: U5 bonded rare earth-iron-nitrogen magnets.

Magnetische Werkstoffe - Teil 1: Einteilung

Matériaux magnétiques - Partie 1: Classification

L'IEC 60404-1:2016 a pour objet la classification des matériaux magnétiques disponibles commercialement. Le terme "matériaux magnétiques" décrit les substances dont l'application exige l'existence de propriétés ferromagnétiques ou ferrimagnétiques. Dans le présent document, la classification des matériaux magnétiques est basée sur l'existence généralement reconnue de deux groupes principaux de produits: - les matériaux magnétiques doux (coercitivité ≤ 1 000 A/m); - les matériaux magnétiques durs (coercitivité >1 000 A/m). Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) Suppression de l'ensemble des tableaux et valeurs décrivant les propriétés types du matériau dans un souci de cohérence avec l'objectif du document visant à établir une classification et non une spécification. b) Augmentation de la teneur en Ni pour les classes E1 et E3. c) Augmentation de la teneur en Co pour les classes F3. d) Ajout d'une nouvelle classe: classe U5 - aimants agglomérés terres rares-fer-azote.

Magnetni materiali - 1. del: Razvrstitev (IEC 60404-1:2016)

Ta del standarda IEC 60404 je namenjen razvrstiti komercialnih magnetnih materialov. Izraz "magnetni materiali" označuje snovi, za uporabo katerih se zahteva prisotnost feromagnetnih ali ferimagnetnih lastnosti.
V tem dokumentu razvrstitev magnetnih materialov temelji na splošno priznanem obstoju dveh glavnih skupin izdelkov:
• mehkih magnetnih materialov (koercivnost ≤1000 A/m);
• trdih magnetnih materialov (koercivnost > 1000 A/m).
Znotraj teh glavnih skupin razvrstitev upošteva naslednje značilnosti, kjer je to potrebno:
• glavni legirni element in metalurško stanje ter fizične lastnosti materiala;
• če je mogoče in priročno, razvrstitev upošteva razmerje med temi značilnostmi.
Razvrstitve po posebnih področjih uporabe ni mogoče uporabiti za vse materiale, ker se različni materiali lahko zelo pogosto uporabljajo za isti namen, odvisno od zahtevanih značilnosti.

General Information

• Status: Published
• Publication Date: 26-Jan-2017
• Withdrawal Date: 27-Nov-2019
• 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: 27-Jan-2017
• Completion Date: 27-Jan-2017
• Ref Project: SIST EN 60404-1:2017 - Magnetic materials - Part 1: Classification (IEC 60404-1:2016)

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2017
Magnetni materiali - 1. del: Razvrstitev (IEC 60404-1:2016)
Magnetic materials - Part 1: Classification (IEC 60404-1:2016)
Ta slovenski standard je istoveten z: EN 60404-1:2017
ICS:
29.100.10 Magnetne komponente Magnetic components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60404-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2017
ICS 29.030
English Version
Magnetic materials - Part 1: Classification
(IEC 60404-1:2016)
Matériaux magnétiques - Partie 1: Classification Magnetische Werkstoffe - Teil 1: Klassifizierung
(IEC 60404-1:2016) (IEC 60404-1:2016)
This European Standard was approved by CENELEC on 2016-11-28. 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60404-1:2017 E
European foreword
The text of document 68/533/CDV, future edition 3 of IEC 60404-1, prepared by IEC/TC 68 "Magnetic
alloys and steels" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2017-08-28
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2019-11-28
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60404-1:2016 was approved by CENELEC as a European
Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When 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 - -
(IEV) -
Part 121: Electromagnetism
IEC 60050-151 -  International Electrotechnical Vocabulary - -
(IEV) -
Part 151: Electrical and magnetic devices
IEC 60050-221 -  International Electrotechnical Vocabulary - -
(IEV) -
Chapter 221: Magnetic materials and
components
IEC 60401-3 -  Terms and nomenclature for cores made EN 60401-3 -
of magnetically soft ferrites -
Part 3: Guidelines on the format of data
appearing in manufacturers' catalogues of
transformer and inductor cores
IEC 60404-2 -  Magnetic materials - EN 60404-2 -
Part 2: Methods of measurement of the
magnetic properties 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
Magnetic materials -
IEC 60404-4 -  EN 60404-4 -
Part 4: Methods of measurement of d.c.
magnetic properties of iron and steel
IEC 60404-6 -  Magnetic materials - EN 60404-6 -
Part 6: Methods of measurement of the
magnetic properties of magnetically soft
metallic and powder materials at
frequencies in the range 20 Hz to 200 kHz
by the use of ring specimens
IEC 60404-7 -  Magnetic materials - - -
Part 7: Method of measurement of the
coercivity of magnetic materials in an open
magnetic circuit
Publication Year Title EN/HD Year

IEC 60404-8-1 -  Magnetic materials - EN 60404-8-1 -
Part 8-1: Specifications for individual
materials - Magnetically hard materials
IEC 60404-8-3 -  Magnetic materials - - -
Part 8-3: Specifications for individual
materials - Cold-rolled electrical non-
alloyed and alloyed steel sheet and strip
delivered in the semi-processed state
IEC 60404-8-4 -  Magnetic materials - - -
Part 8-4: Specifications for individual
materials - Cold-rolled non-oriented
electrical steel strip and sheet delivered in
the fully-processed state
IEC 60404-8-5 -  Magnetic materials - - -
Part 8: Specifications for individual
materials -
Section 5: Specification for steel sheet and
strip with specified mechanical properties
and magnetic permeability
IEC 60404-8-6 -  Magnetic materials - EN 60404-8-6 -
Part 8-6: Specifications for individual
materials - Soft magnetic metallic materials
IEC 60404-8-7 -  Magnetic materials - - -
Part 8-7: Specifications for individual
materials - Cold-rolled grain-oriented
electrical steel strip and sheet delivered in
the fully-processed state
IEC 60404-8-8 -  Magnetic materials - - -
Part 8: Specifications for individual
materials -
Section 8: Specification for thin magnetic
steel strip for use at medium frequencies
IEC 60404-8-9 -  Magnetic materials - - -
Part 8: Specification for individual materials
- Section 9: Standard specification for
sintered soft magnetic materials
IEC 60404-8-10 -  Magnetic materials - - -
Part 8-10: Specifications for individual
materials - Magnetic materials (iron and
steel) for use in relays
IEC 60404-10 -  Magnetic materials - - -
Part 10: Methods of measurement of
magnetic properties of electrical steel strip
and sheet at medium frequencies
ISO 4948-1 -  Steels; Classification - - -
Part 1: Classification of steels into
unalloyed and alloy steels based on
chemical composition
IEC 60404-1 ®
Edition 3.0 2016-10
INTERNATIONAL
STANDARD
Magnetic materials –
Part 1: Classification
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.030 ISBN 978-2-8322-3671-0

– 2 – IEC 60404-1:2016 © IEC 2016
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Magnetically soft materials (coercivity ≤1 kA/m) . 8
4.1 Class A – Irons . 8
4.1.1 Reference documents . 8
4.1.2 Chemical composition . 8
4.1.3 Basis of subclassification . 8
4.1.4 Available forms . 8
4.1.5 Physical characteristics . 8
4.1.6 Main applications . 8
4.2 Class B – Low carbon mild steels . 9
4.2.1 Class B1 – Bulk material . 9
4.2.2 Class B2 – Flat material. 9
4.3 Class C – Silicon steels . 10
4.3.1 Class C1 – Bulk material . 10
4.3.2 Class C2 – Flat material . 11
4.4 Class D – Other steels . 16
4.4.1 Class D1 – Bulk material . 16
4.4.2 Class D2 – Flat material . 18
4.4.3 Class D3 – Stainless steels . 18
4.5 Class E – Nickel-iron alloys . 19
4.5.1 Class E1 – Nickel content 70 % to 85 % . 19
4.5.2 Class E2 – Nickel content 54 % to 68 % . 20
4.5.3 Class E3 – Nickel content 40 % to 51 % . 21
4.5.4 Class E4 – Nickel content 35 % to 40 % . 22
4.5.5 Class E5 – Nickel content 29 % to 33 % . 23
4.6 Class F – Iron-cobalt alloys . 24
4.6.1 Class F1 – Cobalt content 47 % to 50 % . 24
4.6.2 Class F2 – Cobalt content 35 % . 24
4.6.3 Class F3 – Cobalt content 23 % to 30 % . 25
4.7 Class G – Other alloys . 26
4.7.1 Class G1 – Aluminium-iron alloys . 26
4.7.2 Class G2 – Aluminium-silicon-iron alloys . 27
4.8 Class H – Magnetically soft materials made by powder metallurgical
techniques . 27
4.8.1 Class H1 – Soft ferrites . 27
4.8.2 Class H2 – Magnetically soft sintered materials . 29
4.8.3 Class H3 – Powder composites . 29
4.9 Class I – Amorphous soft magnetic materials . 30
4.9.1 General . 30
4.9.2 Class I1 – Iron-based amorphous alloys . 30
4.9.3 Class I2 – Cobalt-based amorphous alloys . 31
4.9.4 Class I3 – Nickel-based amorphous alloys . 32
4.10 Class J – Nano-crystalline soft magnetic materials . 33

IEC 60404-1:2016 © IEC 2016 – 3 –
4.10.1 Reference document . 33
4.10.2 Production process . 33
4.10.3 Chemical composition . 33
4.10.4 Basis of subclassification . 33
4.10.5 Available forms . 33
4.10.6 Physical characteristics . 33
4.10.7 Main applications . 34
5 Magnetically hard materials (coercivity > 1 kA/m) . 34
5.1 Class Q – Magnetostrictive alloys – Rare earth iron alloys (Class Q1) . 34
...