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SmCo
magnet
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Other Magnet
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Tel：0574-88169508
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0574-88169555
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0574-88169501
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0574-88169502
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0574-88169503
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Fax：0574-88169517
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0574-88169511
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0574-88169512
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Application
introduction:::
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SmCo
is also named with SoCo magnetic steel, SmCo permanent magnet, SoCo
permanent magnetic iron and rare-earth cobalt permanent magnet. It’s a
high performance, low temperature coefficient permanent magnet with its
high working temperature—350 degree centigrade. When working above 180
degree centigrade, its maximum energy product BH and steady temperature
are superior than NdFeB magnetic materials. It needn’t to be coated
because it is difficult to be eroded and oxidized. SoCo magnet is widely
used in motors, watch, transducers, instruments, positional detector,
generators, radar communications, medical equipments, various magnetism
spreading devices, magnetic processor, electrical engineering and
magnetic derrick
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Partial physical
property of sintering SmCo magnets
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parameter name
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unit
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SmCo1:5
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SmCo2:17
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density
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G/cm3
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8．3
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8．4
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Curie Temperature
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K
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1000
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1100
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Vickers hardness
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MPa
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450-500
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550-600
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compressing strength
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MPa
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1000
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800
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Electronic resistivity
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Ω.cm
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5～6×10-5
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8～9×10-5
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bending strength
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Mpa
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150-180
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130-150
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stretching strength
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Mpa
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400
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350
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Hot coefficient of expansion
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(10-6/℃)
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∥6
⊥12
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∥8
⊥11
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The above specific numbers help to consult,
not to be the judging basis
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Magnetic field
strength H(min) of sintered SmCo magnet（KA/m）:::
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Materials
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SmCo1：5
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SmCo1：5
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SmCo2：17
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SmCo2：17
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Ce(co,Fe,cu)5
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Hcj Scope
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HCj≥1194
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HCj≤1194
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HCj≥1433
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HCj≤1273
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HCj≤800
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Magnetic field strength H(min)
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3500
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2400
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5000
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3500
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1600
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Agglutinates
generally the samarium cobalt 2: 17 most lowers needs the saturated
magnetizing field is material itself HCj value 2-3 times
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Characteristic
comparisons of permanent magnetic materials:::
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Materials
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(BH)max
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iHc
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Br Tc
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(Working temperature)max
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Anti-causticity
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SmCo1：5
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16-25
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15-25
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-0.05
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200-250
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Good
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SmCo2：17
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22-30
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6-30
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-0.03
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300-350
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Good
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NdFeB
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26-52
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12-30
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-0.11
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80-200
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Bad
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Ferrite magnet
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3-4.5
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3-4.5
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-0.19
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200-300
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Good
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AINiCo
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5-10
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1-1.8
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-0.03
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450-500
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Excellent
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（1）Sintered
SoCo permanent magnetic materials have the character of brittleness,
lacking of the ductility. So it isn’t suitable for using as structural
part when being designed. The physical specifications of SmCo(1:5) is
better than SmCo(2:17)’s because SmCo(1:5) is easy to machine while
SmCo(2:17) is more brittle. SmCo permanent magnet magnetized must be
picked up carefully during the process of assembling, avoiding ironware
to prevent absorbing mutually and the magnets broke off, or two slices
of magnetic irons cause damage resulted in absorbing together, besides,
it will even cause body-hurt
（2）Sintered
SoCo permanent magnetic materials would make some slight collision in
the process of producing, packing and delivering, so there may be have
some visual flaw owing to a bit small horn. However, it wouldn’t damage
its magnetic specifications, its stability and its anti-degenerated
magnetic ability as long as its flaw doesn’t affect normal construction
or functions.
（3）Clients
who require non-magnetized SmCo permanent magnet must be acquaint with
self-magnet equipments for the purpose of completely satiate and
magnetize our products or codes.
（4）If
the designed products are in sour alkali or worse applying
environments, our company may provide products of Zn, Ni, Gold or
wreath oxygen plated. We feel very graceful for your applications.
Welcome to fax or make email consultation. We are pleased to help you
with all problems of the techniques. We all work hard trying to provide
you SmCo permanent magnetic materials with top-quality and low-price.
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