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BS IEC 60404-1:2000
Superseded
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Magnetic materials Classification
Hardcopy , PDF
28-02-2017
English
15-09-2000
FOREWORD
1 General
1.1 Scope and object
1.2 Normative references
1.3 Definitions
2 Magnetically soft materials (coercivity <1 kA/m)
2.1 Class A - Irons
2.1.1 General
2.1.2 Physical characteristics
2.1.3 Main applications
2.2 Class B - Low carbon mild steels
2.2.1 Class B.1 - Bulk material
2.2.2 Class B.2 - Flat material
2.3 Class C - Silicon steels
2.3.1 Class C.1 - Bulk material
2.3.2 Class C.2 - Flat material
2.4 Class D - Other steels
2.4.1 Class D.1 - Bulk material
2.4.2 Class D.2 - Flat material
2.4.3 Class D.3 - Stainless steels
2.5 Class E - Nickel-iron alloys
2.5.1 Class E.1 - Nickel content 72 % to 83 %
2.5.2 Class E.2 - Nickel content 54 % to 68 %
2.5.3 Class E.3 - Nickel content 45 % to 50 %
2.5.4 Class E.4 - Nickel content 35 % to 40 %
2.5.5 Class E.5 - Nickel content 29 % to 33 %
2.6 Class F - Iron-cobalt alloys
2.6.1 Class F.1 - Cobalt content 47 % to 50 %
2.6.2 Class F.2 - Cobalt content 35 %
2.6.3 Class F.3 - Cobalt content 23 % to 27 %
2.7 Class G - Other alloys
2.7.1 Class G.1 - Aluminium-iron alloys
2.7.2 Class G.2 - Aluminium-silicon-iron
alloys
2.8 Class H - Magnetically soft materials made by
powder metallurgical techniques
2.8.1 Class H.1 - Soft ferrites
2.8.2 Class H.2 - Magnetically soft sintered
materials
2.8.3 Class H.3 - Powder composites
2.9 Class I - Amorphous soft magnetic materials
2.9.1 Class I.1 - Iron-based alloys
2.9.2 Class I.2 - Cobalt-based alloys
2.9.3 Class I.3 - Nickel-based alloys
3 Magnetically hard materials (coercivity >1 kA/m)
3.1 Class Q - Magnetostrictive alloys - Rare earth
iron alloys (Class Q.1)
3.1.1 General
3.1.2 Physical characteristics
3.1.3 Main applications
3.2 Class R - Magnetically hard alloys
3.2.1 Class R.1 - Alloys of aluminium-nickel-
cobalt-iron-titanium
3.2.2 Class R.3 - Iron-cobalt-vanadium-
chromium alloys
3.2.3 Class R.5 - Rare earth cobalt (RE-Co)
alloys
3.2.4 Class R.6 - Chromium-iron-cobalt alloys
3.2.5 Class R.7 - Rare earth iron boron
alloys
3.3 Class S - Magnetically hard ceramics - Hard
ferrites (Class S.1)
3.3.1 General
3.3.2 Physical characteristics
3.3.3 Main applications
3.4 Class T - Other magnetically hard materials -
Martensitic steels (Class T.1)
3.4.1 General
3.4.2 Physical characteristics
3.4.3 Main applications
3.5 Class U - Bonded magnetically hard materials
3.5.1 Class U.1 - Bonded aluminium-nickel-
cobalt-iron-titanium magnets
3.5.2 Class U.2 - Bonded rare earth cobalt
magnets
3.5.3 Class U.3 - Bonded neodymium-iron-boron
magnets
3.5.4 Class U.4 - Bonded hard ferrites
Table 1 - Ranges of chemical composition
Table 2 - Ranges of specified values for magnetic properties
Table 3 - Ranges of typical values of magnetic and mechanical
properties
Table 4 - Ranges of specified values of maximum specific
total loss
Table 5 - Ranges of specified values for magnetic and
electric properties
Table 6 - Ranges of specified values of maximum specific
total loss
Table 7 - Ranges of specified values of maximum specific
total loss
Table 8 - Ranges of typical values of maximum specific loss
Table 9 - Specified values of maximum specific total loss
Table 10 - Typical values of mechanical and magnetic
properties for the thickness of 0,50 mm
Table 11 - Typical values of magnetic properties
Table 12 - Typical ranges of magnetic and mechanical
properties
Table 13 - Typical ranges of mechanical properties
Table 14 - Ranges of specified values of mechanical and
magnetic characteristics of hot-rolled products
Table 15 - Ranges of specified values of mechanical and
magnetic characteristics of cold-rolled products
Table 16 - Ranges of chemical composition
Table 17 - Typical magnetic properties of materials in the
fully processed state
Table 18 - Specified magnetic properties of material with a
round hysteresis loop
Table 19 - Typical magnetic properties of material with a
flat hysteresis loop
Table 20 - Typical magnetic properties of material with a
rectangular hysteresis loop
Table 21 - Typical magnetic properties of material with a
round hysteresis loop
Table 22 - Typical magnetic properties of material with a
flat hysteresis loop
Table 23 - Specified magnetic properties of material with a
round hysteresis loop
Table 24 - Typical magnetic properties of material with a
flat hysteresis loop
Table 25 - Typical magnetic properties of material with a
rectangular hysteresis loop
Table 26 - Specified magnetic properties of material in the
fully processed state
Table 27 - Typical magnetic properties
Table 28 - Ranges of specified magnetic properties of
material with a round hysteresis loop
Table 29 - Typical magnetic properties of material with a
rectangular hysteresis loop
Table 30 - Specified magnetic properties
Table 31 - Specified magnetic properties
Table 32 - Typical properties for Mn-Zn ferrites
Table 33 - Typical properties for Ni-Zn ferrites
Table 34 - Ranges of specified properties
Table 35 - Typical physical and magnetic properties
Table 36 - Typical physical and magnetic properties
Table 37 - Typical physical and magnetic properties
Table 38 - Typical physical properties
Table 39 - Ranges of specified magnetic properties
Table 40 - Specified values of magnetic properties
Table 41 - Ranges of specified magnetic properties and
density of sintered material
Table 42 - Ranges of specified magnetic properties
Table 43 - Ranges of specified magnetic properties and
density for anisotropic RE-FeB alloys
Table 44 - Ranges of specified values of magnetic properties
Table 45 - Typical magnetic properties
Table 46 - Specified values of magnetic properties
Table 47 - Specified values of magnetic properties
Table 48 - Ranges of typical physical and magnetic properties
Table 49 - Ranges of specified magnetic properties
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