The SmCo Magnet is a high performance, low temperature coefficient permanent magnet made of samarium and cobalt and other rare-earth elements. Its biggest advantage is its high working temperature---350℃,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 other applications.
>>Production Chart of Sintered NdFeB
>>Magnetic Properties of Sintered SmCo Magnets
Magnetic Properties of Sintered SmCo Magnets
Material
Grade
Br
Hcb
Hcj
(BH) max
TW
T
KA/m
KA/m
KJ/m3
KGs
KOe
KOe
MGOe
Max
Min
Max
Min
Max
Min
Max
Min
℃
SmCo5 & Sm(Pr)Co
YX18
0.92
0.82
756
639
1751
1194
159
127
250
9.2
8.2
9.5
8
22
15
20
16
YX20
0.95
0.87
756
639
1751
1194
175
143
9.5
8.7
9.5
8
22
15
22
18
YX22
1
0.93
772
660
1751
1194
207
175
10
9.3
9.7
8.3
22
15
24
20
YX24
1.04
0.96
780
660
1751
1194
207
175
10.4
9.6
9.8
8.3
22
15
26
22
Sm2Co17
YGX24M
1.04
0.96
772
318
955
398
207
175
350
1.04
9.6
9.7
4
12
5
26
22
YGX24
1.04
0.96
780
660
≥1194
207
175
10.4
9.6
9.8
8.3
≥15.0
26
22
YGX24H
1.04
0.96
780
660
≥1592
207
175
10.4
9.6
9.8
8.3
≥20.0
26
22
YGX26M
1.07
1
796
318
955
398
223
191
10.7
10
10
4
12
5
28
25
YGX26
1.07
1
820
677
≥1194
223
191
10.7
10
10.3
8.5
≥15.0
28
25
YGX26H
1.07
1
820
677
≥1592
28
25
10.7
10
10.3
8.5
≥20.0
28
25
Magnetic Properties of Sintered SmCo Magnets
Material
Grade
Br
Hcb
Hcj
(BH) max
TW
T
KA/m
KA/m
KJ/m3
KGs
KOe
KOe
MGOe
Max
Min
Max
Min
Max
Min
Max
Min
℃
Sm2Co17
YGX28M
1.1
1.04
796
318
955
398
239
207
350
11
10.4
10
4
12
5
30
26
YGX28
1.1
1.04
820
677
≥1194
239
207
11
10.4
10.3
8.5
≥15.0
30
26
YGX28H
1.1
1.04
820
677
≥1592
239
207
11
10.4
10.3
8.5
≥20.0
30
26
YGX30M
1.12
1.07
796
318
955
398
247
223
11.2
10.7
10
4
12
5
31
28
YGX30
1.12
1.07
820
677
≥1194
247
223
11.2
10.7
10.3
8.5
≥15.0
31
28
YGX32M
1.15
1.09
796
318
955
398
31
28
11.5
10.9
10
4
12
5
32
29
YGX32
1.15
1.09
820
677
≥955
262
238
11.5
10.9
10.3
8.5
≥12.0
32
29
Low
Temp.
Coeff
Sm2Co17
YXG22LT
1
0.93
756
677
≥1194
191
159
350
10
9.3
9.5
8.5
≥15.0
26
22
YXG24LT
1.04
0.96
756
677
≥1194
223
191
10.4
9.6
9.5
8.5
≥15.0
26
22
YXG26LT
1.07
1
812
677
≥1433
223
191
10.7
10
10.2
8.5
≥18.0
28
25
>>Physical Properties of Sintered SmCo
Physical Properties of Sintered SmCo Magnets
Material
SmCo 1:5
SmCo 2:17
Br Temp. Coefficient (%/℃)
-0.04
-0.03
Curie Temp. (TC ℃)
750
800
Density (g/c m³)
8.1-8.2
8.3
Vickers Hardness (Hv)
400-500
500-600
Working Temp. (℃)
250
280-300
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