IEC 60404-8-3:2005

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
4 Classification
5 Designation
6 General requirements
   6.1 Production process
   6.2 Form of supply
   6.3 Delivery condition
   6.4 Surface condition
   6.5 Suitability for cutting
7 Technical requirements
   7.1 Magnetic properties
   7.2 Geometric characteristics and tolerances
   7.3 Other properties
8 Inspection and testing
   8.1 General
   8.2 Selection of samples
   8.3 Preparation of test specimens
   8.4 Test methods
   8.5 Retests
9 Marking, labelling and packaging
10 Complaints
11 Information to be supplied by the purchaser
Annex A (informative) European numerical system of
                      designation of steels
Annex B (informative) Typical relative amplitude permeability
Annex C (informative) Maximum specific total loss at 1,0 T
Annex D (informative) Determination of density values
Bibliography

Applies to magnetic material intended for the construction of magnetic circuits. These materials correspond respectively to classes C.21 and B.2 of IEC 60404-1: 2000. This standard defines the grades of cold-rolled electrical non-oriented non-alloyed (non alloyed steel is that steel the basic constituent of which is iron containing alloying elements in amounts smaller than the limiting values fixed by ISO 4948 1) or alloyed (alloyed steel is that steel the basic constituent of which is iron containing alloying elements in amounts equal to or greater than the limiting values fixed by ISO 4948 1) steel sheet and strip delivered in the semi-processed state, i.e. without final heat treatment, of nominal thicknesses given in Tables 1 and 2. It specifies general requirements, the magnetic properties, the geometrical characteristics and tolerances, technological characteristics as well as the inspection procedure.