International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 68

Magnetic alloys and steels

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 68WG 1Mr Kiyoshi WajimaPPUB2020-092023

History

Stage
Document
Downloads
Decision Date
Target Date
ACD
68/589/RR PDF file 93 kB
2017-10-24 
CD
68/601/CD
PDF file 348 kB
2018-04-272018-11
PCC
2018-08-172018-08
A2CD
68/609/CC PDF file 244 kB
Word file 234 kB
2018-09-072018-12
A2CD
68/609A/CC PDF file 273 kB
Word file 254 kB
2018-09-072018-12
2CD
68/619/CD
PDF file 382 kB
2018-12-072018-11
PCC
2019-03-292019-03
ACDV
68/628/CC PDF file 183 kB
Word file 48 kB
2019-05-102019-12
A3CD
68/628A/CC  
2019-09-272019-11
ACDV
68/628B/CC PDF file 236 kB
Word file 56 kB
2019-10-042019-12
TCDV
2019-12-092020-01
CCDV
68/648/CDV
PDF file 461 kB
2020-01-312020-01
PRVC
2020-04-242020-04
APUB
68/662/RVC PDF file 202 kB
Word file 41 kB
2020-06-192020-07
TPUB
2020-06-302020-07
DECPUB
2020-07-072020-08
RPUB
2020-07-142020-07
BPUB
2020-07-292020-10
PPUB
2020-08-182020-09
  

Abstract

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.

Project

IEC 60404-8-5:2020 ED2

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