IEC 60404-8-5:2020

Magnetic materials - Part 8-5: Specifications for individual materials - Electrical steel strip and sheet with specified mechanical properties and magnetic polarization

IEC 60404-8-5:2020(E) defines the grades of electrical steel strip and sheet with specified mechanical properties and magnetic polarization. In particular, it gives general requirements, mechanical properties, magnetic polarization, geometric characteristics, tolerances and technological characteristics, as well as inspection procedures.
This document applies to electrical steel strip and sheet intended for the construction of poles and rims of rotating electrical machines.
The grades are grouped into two classes according to their manufacturing process:
- hot-rolled grades;
- cold-rolled grades.
They correspond to Class D21 of IEC 60404-1.
This edition includes the following significant technical changes with respect to the previous edition:
a) extension of the range of products to include the improved grades;
b) division of "flatness" into "edge wave (wave factor)" and "residual curvature" in consistent with IEC 60404-9;
c) change length of test specimen for determinations of geometrical characters from 2 m to 1 m.

General Information

• Status: Published
• Publication Date: 17-Aug-2020
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• ICS: 29.030 - Magnetic materials
• Technical Committee: TC 68 - Magnetic alloys and steels
• Drafting Committee: WG 1 - TC 68/WG 1
• Current Stage: PPUB - Publication issued
• Start Date: 09-Sep-2020
• Completion Date: 18-Aug-2020

Standards Content (Sample)

IEC 60404-8-5
®


Edition 2.0 2020-08
INTERNATIONAL
STANDARD



Magnetic materials –
Part 8-5: Specifications for individual materials – Electrical steel strip and sheet
with specified mechanical properties and magnetic polarization
IEC 60404-8-5:2020-08(en)

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IEC 60404-8-5

®


Edition 2.0 2020-08




INTERNATIONAL



STANDARD



















Magnetic materials –

Part 8-5: Specifications for individual materials – Electrical steel strip and sheet

with specified mechanical properties and magnetic polarization

























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 29.030; 17.220.20 ISBN 978-2-8322-8747-7




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– 2 – IEC 60404-8-5:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Classification . 8
5 Designation . 8
6 General requirements . 9
6.1 Production process . 9
6.2 Form of supply . 9
6.3 Delivery condition .
...