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Samarium Cobalt Sintered SmCo Magnets, Rare Earth SmCo Magnet
High-Performance Magnets with Excellent Temperature Stability
Samarium cobalt magnets (also known as Sintered SmCo Magnets, Rare Earth SmCo Magnet), are extremely powerful permanent magnetS. Part
of
the rare-earth magnet family, Sintered SmCo Magnets, Rare Earth SmCo Magnet rank similarly in strength to neodymium magnets but have
much
higher temperature stability and higher coercivity. They can operate at temperatures up to 525°F
(300°C). In addition, they have a very high resistance to demagnetization and to corrosion. SmCo
magnets
are available in numerous shapes, sizes and grades that span a wide range of properties and
application
requirements.
SmCo Magnetic Materials Properties Data
|
Samarium Cobalt -Magnetic Properties
|
|
Grade
|
Press¹
|
Type²
|
Br
(kGauss)
|
Hc
(kOersteds)
|
Hci
(kOersteds)
|
BHmax
(MGOe)
|
Temperature Coefficients
(%/℃)
|
Maximum Operating Temp @ Pc
=2(²)
|
|
Range
|
Typical
|
Minimum
|
Range
|
of Br
|
of Hci
|
(℃)
|
(°F)
|
|
S3410
|
D
|
2:17
|
11,3~12,1
|
100
|
100
|
29~34
|
-0.03
|
-0.22
|
~300
|
~570
|
|
S3320
|
D
|
2:17
|
11,2~12,0
|
106
|
200
|
28~33
|
-0.04
|
-0.27
|
~325
|
~610
|
|
S3310
|
D
|
2:17
|
11,2~12,0
|
90
|
100
|
28~33
|
-0.04
|
-0.25
|
~300
|
~570
|
|
S3120
|
D
|
2:17
|
10,7~11,5
|
103
|
200
|
25~31
|
-0.04
|
-0.20
|
~350
|
~660
|
|
S3018
|
D
|
2:17
|
10,2~11,2
|
98
|
180
|
24~30
|
-0.04
|
-0.20
|
~400
|
~750
|
|
S3007
|
D
|
2:17
|
10,5~11,2
|
825
|
700
|
24~30
|
-0.04
|
-0.17
|
~250
|
~480
|
|
S2909
|
D
|
2:17
|
10,2~11,0
|
925
|
900
|
25~29
|
-0.03
|
-0.17
|
~300
|
~570
|
|
S2809
|
D
|
2:17
|
10,0~10,8
|
925
|
900
|
24~28
|
-0.03
|
-0.19
|
~300
|
~570
|
1 D: Die-Pressed, I: Isostatcally-Pressed
2 Type: Sm.Co5 or Sm2C017 types
3 The Maximum Operating Temperature shown here is for magnets operating at a Permeance Coeficient of 2.
At
the temperatures shown the materal's BH Curve
does not develop a knee and is still fairly linear.
|
Samarium Cobalt-Typical Physical Properties
|
|
Density
|
Bending Strength
|
Compressive Strength
|
Electrical
Resistivity(Ωm)
|
Coeff.Of Thermal Expansion⁴
|
Curie Temperature
|
|
(kg/m³)
|
(Ibs/in³)
|
(kg/m²)
|
(Ibs/in²)
|
(kg/m²)
|
(Ibs/in²)
|
// M
|
”'M
|
(℃)
|
(°F)
|
|
8.4x103
|
0.304
|
1.2×103
|
1.7×104
|
9.1x103
|
1.3×105
|
0.8x10-6
|
9.2×10-6
|
11.8×10-6
|
825
|
1510
|
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