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SmCo is also named with SmCo
magnetic steel, SmCo
permanent magnet, SmCo
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. SmCo 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, Samarium
Cobalt holds its standard
property in higher maximum
temperatures than
Neodymium, although
its maximum strength is
less. The cost of SmCo
material is the most
expensive, so SmCo is
recommended only when its
performance is a high
temperature environment is a
concern.
The characteristics of
Samarium Cobalt Magnet
*Very high magnetic
properties with good
stability.
*Superior resistance to high
temperature, Curie
temperature of majority is
over 800℃
*Excellent corrosion
resistance capability, no
coating is needed for
surface protection
MAGNETIC PROPERTIES OF
SINTERED SMCO MAGNETS
|
Code |
Br |
Hcb |
Hcj |
(BH)max |
|
mT |
kGs |
kA/m |
koe |
kA/m |
koe |
kJ/m3 |
MGoe |
|
XC16 |
750~880 |
7.5~8.8 |
597±40 |
7.5±0.5 |
≥1591 |
≥20.0 |
127±16 |
16±2 |
|
XC16A |
750~880 |
7.5~8.8 |
597±40 |
7.5±0.5 |
≥1989 |
≥25.0 |
127±16 |
16±2 |
|
XC16B |
750~880 |
7.5~8.8 |
597±40 |
7.5±0.5 |
≥2386 |
≥30.0 |
127±16 |
16±2 |
|
XC18 |
800~930 |
8.0~9.3 |
637±40 |
8.0±0.5 |
≥1194 |
≥15.0 |
143±16 |
18±2 |
|
XC18A |
800~930 |
8.0~9.3 |
637±40 |
8.0±0.5 |
≥1591 |
≥20.0 |
143±16 |
18±2 |
|
XC18T |
800~930 |
8.0~9.3 |
637±40 |
8.0±0.5 |
≥1591 |
≥20.0 |
143±16 |
18±2 |
|
XC18B |
800~930 |
8.0~9.3 |
637±40 |
8.0±0.5 |
≥1989 |
≥25.0 |
143±16 |
18±2 |
|
XC20 |
900~980 |
9.0~9.8 |
637±40 |
8.0±0.5 |
≥1432 |
≥18.0 |
159±16 |
20±2 |
|
XC20 |
900~950 |
9.0~9.5 |
≥670 |
8.5~9.2 |
≥1591 |
≥20.0 |
159±16 |
20±2 |
|
XC20A |
900~980 |
9.0~9.8 |
637±40 |
8.0±0.5 |
≥1989 |
≥25.0 |
159±16 |
20±2 |
|
XC22 |
900~1030 |
9.0~10.3 |
653±40 |
8.2±0.5 |
≥1432 |
≥18.0 |
175±16 |
22±2 |
|
XC22A |
900~1030 |
9.0~10.3 |
653±40 |
8.2±0.5 |
≥1989 |
≥25.0 |
175±16 |
22±2 |
|
XC24 |
950~1080 |
9.5~10.8 |
676±40 |
8.2±0.5 |
≥1432 |
≥18.0 |
191±16 |
24±2 |
|
XC24A |
1000~1100 |
10.0~11.0 |
676±40 |
8.2±0.5 |
≥1989 |
≥25.0 |
191±16 |
24±2 |
|
XC26 |
1000~1130 |
10.0~11.3 |
357~516 |
4.5~6.5 |
413~556 |
5.0~7.0 |
207±16 |
26±2 |
|
XC26A |
1000~1130 |
10.0~11.3 |
716±40 |
9.0±0.5 |
≥796 |
≥10.0 |
207±16 |
26±2 |
|
XC26B |
1000~1130 |
10.0~11.3 |
716±40 |
9.0±0.5 |
≥1194 |
≥15.0 |
207±16 |
26±2 |
|
XC26C |
1000~1130 |
10.0~11.3 |
716±40 |
9.0±0.5 |
≥1591 |
≥20.0 |
207±16 |
26±2 |
|
XC26D |
1000~1080 |
10.0~10.8 |
≥732 |
9.0~10.5 |
≥2300 |
≥30.0 |
207±16 |
26±2 |
|
XC28 |
1060~1180 |
10.6~11.8 |
357~516 |
4.5~6.5 |
413~556 |
5.0~7.0 |
223±16 |
28±2 |
|
XC28A |
1060~1180 |
10.6~11.8 |
763±40 |
9.6±0.5 |
≥796 |
≥10.0 |
223±16 |
28±2 |
|
XC28B |
1050~1150 |
10.5~11.5 |
≥750 |
9.4~9.8 |
≥960 |
≥12.0 |
223±16 |
28±2 |
|
XC28C |
1060~1180 |
10.6~11.8 |
763±40 |
9.6±0.5 |
≥1194 |
≥15.0 |
223±16 |
28±2 |
|
XC30 |
1100~1200 |
11.0~12.0 |
438~597 |
5.5~6.5 |
454~597 |
5.7~7.5 |
238±16 |
30±2 |
|
XC30A |
1100~1200 |
11.0~12.0 |
≥560 |
7.0~8.5 |
≥716 |
≥12.0 |
238±16 |
30±2 |
Two types of SmCo magnets
are SmCo5 and Sm2Co17. SmCo5
has the maximum energy
products of 18MGOe,
comparing with the Sm2Co17
30MGOe, 2-17 composition is
also more corrosion
resistant and more stable at
very high temperature. The
maximum working temperature
is between 250 centigrade
degree to 350 centigrade
degree.
Smco (Samarium Cobalt)
magnets are highly resistant
to corrosion and require no
special surface treatment.
This makes SmCO magnets an
excellent choice for compact
designs where high
temperature environments may
be required
SmCo magnets, ab. for
Samarium Cobalt Magnets,
existed in SmCo5 magnet and
Sm2Co17 magnet, are
available the designer a
tremendous combination of
extremely high magnetic
properties, outstanding
thermal stability and
excellent corrosion
resistance.
These Characters make SmCo
the ideal material in
applications like
servo-motors, pump
couplings, and sensors,
particularly where the
magnet is required to
operate at high temperature,
across a broad temperature
range of in a corrosive
environment.
SmCo magnet is a high
performance, low temperature
coefficient permanent magnet
which made of samarium and
cobalt and other rare-earth
elements. Its biggest
advantage is its hight
working temperature---350o
C. It needn't to be coated
because it is difficult to
be eroded and oxidized. SmCo
magnet is widely used in
motors, watch, transducers,
instruments, positional
detector, generators, radar,
and etc.
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