BS EN 60404-8-6:2017 specifies the general requirements, magnetic properties, geometric characteristics and tolerances as well as inspection procedures for pure iron, silicon-iron, nickel-iron and cobalt-iron. The materials are in the form of bar, billet, sheet, strip or wire. The alloys covered correspond to those defined by classes A, C1, C2, E1 to E4 and F1 to F3 in IEC 60404-1.

Magnetic materials used primarily for relays, iron and steel products, classified only by coercivity, are covered in IEC 60404-8-10. IEC 60404-8-10 is less restrictive in terms of magnetic properties than the irons (class A) and the silicon steels (classes C21 and C22) specified in this standard, but it gives more comprehensive dimensional tolerances.

Non-oriented and oriented silicon steels (C21 and C22) for industrial power frequency applications, classified by specific total loss, are covered in IEC 60404-8-3, IEC 60404-8-4 and IEC 60404-8-7.

Non-oriented and oriented thin magnetic materials for use at medium frequencies, classified by specific total loss, are covered in IEC 60404-8-8.


Cross References:
IEC 60050-121:1998
ISO 10474:2013 ED2
IEC 60404-2:1996 Cons Ed 3-1
EN 60404-6 (IEC 60404-6:2003) AS
IEC 60404-8-7:2008
IEC 60050-131:2002
IEC 60404-9:1987
IEC 60404-8-10:2009
IEC 60404-8-8:1991
IEC 60404-6:2003
IEC 60404-7:1982
IEC 60404-8-3:2005
IEC 60404-1:2016
IEC 60635:1978
IEC 60404-4:1995 Cons Ed 2-2
IEC 60404-8-4:2013
ISO 404:1992
EN 60404-2
EN 60404-4
IEC 60050-221
ISO 286-1:2010 Ed 2
EN ISO 286-1 (ISO 286-1:2010) AS


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