Abstract

Corrigendum 1 - Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies

General Information

Status: Published
Publication Date: 21-Mar-2018

ICS: 29.030 - Magnetic materials

Technical Committee: TC 68 - Magnetic alloys and steels
Drafting Committee: WG 2 - TC 68/WG 2

Current Stage: PPUB - Publication issued
Start Date: 22-Mar-2018
Completion Date: 10-May-2018

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Corrects: IEC 60404-10:2016 - Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies
Effective Date: 05-Sep-2023

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IEC 60404-10:2016/COR1:2018 - Corrigendum 1 - Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies
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IEC 60404-10:2016/COR1:2018 - Corrigendum 1 - Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies Released:3/22/2018

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Frequently Asked Questions

What is IEC 60404-10:2016/COR1:2018?

IEC 60404-10:2016/COR1:2018 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Corrigendum 1 - Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies". This standard covers: Corrigendum 1 - Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies

What is the scope of IEC 60404-10:2016/COR1:2018?

Corrigendum 1 - Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies

What ICS categories does IEC 60404-10:2016/COR1:2018 belong to?

IEC 60404-10:2016/COR1:2018 is classified under the following ICS (International Classification for Standards) categories: 29.030 - Magnetic materials. The ICS classification helps identify the subject area and facilitates finding related standards.

What standards are related to IEC 60404-10:2016/COR1:2018?

IEC 60404-10:2016/COR1:2018 has the following relationships with other standards: It is inter standard links to IEC 60404-10:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

How can I access IEC 60404-10:2016/COR1:2018?

IEC 60404-10:2016/COR1:2018 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)

IEC 60404-10:2016/COR1:2018 - ...

 IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60404-10
Edition 2.0 2016-10
MAGNETIC MATERIALS –
Part 10: Methods of measurement of magnetic properties of electrical steel strip
and sheet at medium frequencies

CO RRI G E NDUM 1
Replace Formula (B.3) with the fol
...

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IEC

IEC 60404-1:2016(Main)

Magnetic materials - Part 1: Classification

IEC 60404-1:2016 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.

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IEC 60404-1:2016/AMD1:2025(Amendment)

Amendment 1 - Magnetic materials - Part 1: Classification

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IEC 60404-18:2025(Main)

Magnetic materials - Part 18: Permanent magnet (magnetically hard) materials - Methods of measurement of the magnetic properties in an open magnetic circuit using a superconducting magnet

IEC 60404-18:2025 defines the general principle and technical details of the methods of measurement of the DC magnetic properties of permanent magnet materials in an open magnetic circuit using a superconducting magnet (SCM).
This method is applicable to permanent magnet materials, such as those specified in IEC 60404‑8‑1, the properties of which are presumed homogeneous throughout their volume.
There are two methods:
- the SCM-vibrating sample magnetometer (VSM) method;
- the SCM-extraction method.
This document also specifies methods to correct the influence of the self-demagnetizing field in the test specimen on the demagnetization curve obtained in an open magnetic circuit. The magnetic properties are determined from the corrected demagnetization curve.

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IEC 60404-1-1:2004(Main)

Magnetic materials - Part 1-1: Classification - Surface insulations of electrical steel sheet, strip and laminations

Establishes a classification of surface insulations for electrical steel sheet, strip and laminations according to their general composition, relative insulating ability and function. These surface insulations are either oxide layers or applied coatings. The purpose of this classification is to create a nomenclature for the various types of surface insulations and to assist users of surface insulations by providing general information about the chemical nature and use of the surface insulations. It is not the intent of this classification to specify insulation requirements in terms of specific values of surface insulation resistance. Such requirements are agreed between the purchaser and the steel producer, where applicable. The classification is used in conjunction with the various specifications for cold rolled electrical steels (see the standards in the IEC 60404-8 series in Clause 2).

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Amendment 1 - Magnetic materials - Part 1-1: Classification - Surface insulations of electrical steel strip, sheet and laminations

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IEC 60404-8-3:2023(Main)

Magnetic materials - Part 8-3: Specifications for individual materials - Cold-rolled non-oriented electrical steel strip and sheet delivered in the semi-processed state

IEC 60404-8-3:2023 defines the grades of cold-rolled non-oriented electrical steel strip and sheet delivered in the semi-processed state in nominal thicknesses of 0,47 mm, 0,50 mm, 0,64 mm, 0,65 mm and 0,79 mm. It gives general requirements, magnetic properties, geometric characteristics, tolerances and technical characteristics as well as inspection procedures. The nominal thicknesses of 0,47 mm, 0,64 mm and 0,79 mm apply to the grades for use at 60 Hz only.
This document applies to cold-rolled non-oriented electrical steel strip and sheet delivered in the semi-processed state, i.e. without final heat treatment, in coils or sheets, and intended for the construction of magnetic circuits. This document does not apply to materials supplied in the fully-processed state.
These materials correspond respectively to classes B2 and C21 of IEC 60404-1.
This edition includes the following significant technical changes with respect to the previous edition:
a) Modification of terms and technical requirements concerning geometrical characteristics to be consistent with IEC 60404-9:2018;
b) Insertion of Table 3 – Tolerances on nominal thickness;
c) Change of the length of the test specimen for determination of geometrical characteristics from 2 m to 1 m;
d) Deletion of Annex A with the European numerical system of designation of steels.

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Magnetic materials - Part 8-1: Specifications for individual materials - Permanent magnet (magnetically hard) materials

IEC 60404-8-1:2023 specifies minimum values for the principal magnetic properties of, and dimensional tolerances for, technically important permanent magnet (magnetically hard) materials.
For information purposes only, this document provides values for the densities of the materials and the ranges of their chemical compositions.
This fourth edition includes the following significant technical changes with respect to the previous edition:
a) recently developed anisotropic REFeB hot deformed magnets and anisotropic HDDR REFeB bonded magnets are included;
b) high energy Ca-La-Co ferrites stabilized by La and Co substitution are included;
c) new and high-performance grades of REFeB and RE2Co17 sintered magnets and isotropic REFeN bonded magnets are added.

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IEC 60404-12:2023(Main)

Magnetic materials - Part 12: Methods of test for the assessment of the thermal endurance of surface insulation coatings on electrical steel strip and sheet

IEC 60404-12:2023 is applicable to surface insulation coatings on electrical steel strip and sheet classified in IEC 60404-1-1.
This document defines the general principles and technical details of the tests for the assessment of the thermal endurance of surface insulation coatings on electrical steel strip and sheet.
The assessment is made by evaluating the change of a specified property of the surface insulation coating due to a heat treatment at a specified temperature up to 850 °C for a specified duration time up to 2 500 h. The specified property is measured at an ambient temperature of (23 ± 5) °C both without heat treatment and after heat treatment.
This edition includes the following significant technical changes with respect to the previous edition:
the method of test for adhesion has been modified to match to the method of bend test specified in ISO 1519 using a cylindrical mandrel of 32 mm in diameter instead of the 30 mm diameter mandrel specified in the first edition;
the method of test for interlaminar insulation resistance has been modified to match to the method specified in IEC 60404-11 and the modified Franklin test has been removed;
the method of test for compressibility has been modified to match to the method of test for stacking factor specified in IEC 60404-13;
the concept of "resistance grades" has been removed;
the clamping pressure to be used at temperature ratings above 500 °C has been reduced to (0,01 ± 0,001) N/mm2;
the testing for continuous exposure has been made a subject to an agreement between the manufacturer and the purchaser and the procedure has been moved to an informative Annex A.

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IEC 60404-3:2022(Main)

Magnetic materials - Part 3: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester

IEC 60404-3:2022 is applicable to grain-oriented and non-oriented electrical steel strip and sheet for measurement of AC magnetic properties at power frequencies. The object of this document is to define the general principles and the technical details of the measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester (SST). This edition includes the following significant technical changes with respect to the previous edition:
- Annex A was revised. The method of determining the yokes’ lamination resistance was added to Annex A;
- Annex B of the consolidated version of 2010 referred to calibration of the SST using the Epstein method. It was cancelled;
- Annex B (new), Annex C and Annex D were revised, they are for information only;
- Annex C was modified taking account of the new situation regarding P and R grades;
- Annex D was amended by addition of Clause D.4 on the numerical air flux compensation.

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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 60404-8-4:2022 defines the grades of cold-rolled non-oriented electrical steel strip and sheet in nominal thicknesses of 0,35 mm, 0,47 mm, 0,50 mm, 0,65 mm and 1,00 mm. In particular, it gives general requirements, magnetic properties, geometric characteristics, tolerances and technological characteristics, as well as inspection procedure. The nominal thickness 0,47 mm applies to the grades for use at 60 Hz only. This document applies to cold-rolled non-oriented electrical steel strip and sheet supplied in the fully-processed state, i.e. the final annealed condition, in coils or sheets, and intended for the construction of magnetic circuits. This document does not apply to materials supplied in the semi-processed state. This edition includes the following significant technical changes with respect to the previous edition:
- modification of terms and technical requirements concerning geometrical characteristics to be consistent with IEC 60404-9:2018;
- insertion of Table 3 - Tolerances on nominal thickness;
- change of the length of test specimen for determination of geometrical characteristics from 2 m to 1 m.

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Corrigendum 1 - Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies

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IEC 60404-10:2016/COR1:2018 - Corrigendum 1 - Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies Released:3/22/2018

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