Samarium Cobalt holds its standard property in higher maximum temperatures than neodymium,although its maximum strengh 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.
Typical Magnetic Porperties of Samarium Cobalt Materials Properties of SmCo Powder
Grade |
Residual Flux Density Br |
Coercive Force Hcb |
Intrinsic Coercive force Hcj |
Max. energy product (BH)max |
||||
mT |
kGs |
kA/m |
koe |
kA/m |
koe |
kJ/m3 |
MGoe |
|
SmCo-YX6 |
500~600 |
5.0~6.0 |
≥358 |
4.5~5.5 |
≥960 |
≥12.0 |
47~72 |
6~9 |
SmCo-YX10 |
600~700 |
6.0~7.0 |
≥438 |
5.5~6.5 |
≥1200 |
≥15.0 |
64~88 |
8~11 |
SmCo-YX12 |
700~750 |
7.0~7.5 |
≥520 |
6.5~7.3 |
≥1591 |
≥20.0 |
96~120 |
12~15 |
SmCo5-YX16 |
750~880 |
7.5~8.8 |
597±40 |
7.5±0.5 |
≥1591 |
≥20.0 |
127±16 |
16±2 |
SmCo-YX16A |
750~880 |
7.5~8.8 |
597±40 |
7.5±0.5 |
≥1989 |
≥25.0 |
127±16 |
16±2 |
SmCo-YX16B |
750~880 |
7.5~8.8 |
597±40 |
7.5±0.5 |
≥2386 |
≥30.0 |
127±16 |
16±2 |
sm2co17-YX18 |
800~930 |
8.0~9.3 |
637±40 |
8.0±0.5 |
≥1194 |
≥15.0 |
143±16 |
18±2 |
SmCo-YX18A |
800~930 |
8.0~9.3 |
637±40 |
8.0±0.5 |
≥1591 |
≥20.0 |
143±16 |
18±2 |
SmCo-YX18T |
800~930 |
8.0~9.3 |
637±40 |
8.0±0.5 |
≥1591 |
≥20.0 |
143±16 |
18±2 |
SmCo-YX18B |
800~930 |
8.0~9.3 |
637±40 |
8.0±0.5 |
≥1989 |
≥25.0 |
143±16 |
18±2 |
sm2co17-YX20 |
900~980 |
9.0~9.8 |
637±40 |
8.0±0.5 |
≥1432 |
≥18.0 |
159±16 |
20±2 |
SmCo-YX20 |
900~950 |
9.0~9.5 |
≥670 |
8.5~9.2 |
≥1591 |
≥20.0 |
159±16 |
20±2 |
SmCo-YX20A |
900~980 |
9.0~9.8 |
637±40 |
8.0±0.5 |
≥1989 |
≥25.0 |
159±16 |
20±2 |
SmCo-YX22 |
900~1030 |
9.0~10.3 |
653±40 |
8.2±0.5 |
≥1432 |
≥18.0 |
175±16 |
22±2 |
SmCo-YX22A |
900~1030 |
9.0~10.3 |
653±40 |
8.2±0.5 |
≥1989 |
≥25.0 |
175±16 |
22±2 |
SmCo-YX24 |
950~1080 |
9.5~10.8 |
676±40 |
8.2±0.5 |
≥1432 |
≥18.0 |
191±16 |
24±2 |
SmCo-YX24A |
1000~1100 |
10.0~11.0 |
676±40 |
8.2±0.5 |
≥1989 |
≥25.0 |
191±16 |
24±2 |
SmCo-YX26 |
1000~1130 |
10.0~11.3 |
357~516 |
4.5~6.5 |
413~556 |
5.0~7.0 |
207±16 |
26±2 |
YX26A |
1000~1130 |
10.0~11.3 |
716±40 |
9.0±0.5 |
≥796 |
≥10.0 |
207±16 |
26±2 |
YX26B |
1000~1130 |
10.0~11.3 |
716±40 |
9.0±0.5 |
≥1194 |
≥15.0 |
207±16 |
26±2 |
YX26C |
1000~1130 |
10.0~11.3 |
716±40 |
9.0±0.5 |
≥1591 |
≥20.0 |
207±16 |
26±2 |
YX26D |
1000~1080 |
10.0~10.8 |
≥732 |
9.0~10.5 |
≥2300 |
≥30.0 |
207±16 |
26±2 |
SmCo-YX28 |
1060~1180 |
10.6~11.8 |
357~516 |
4.5~6.5 |
413~556 |
5.0~7.0 |
223±16 |
28±2 |
SmCo-YX28A |
1060~1180 |
10.6~11.8 |
763±40 |
9.6±0.5 |
≥796 |
≥10.0 |
223±16 |
28±2 |
SmCo-YX28B |
1050~1150 |
10.5~11.5 |
≥750 |
9.4~9.8 |
≥960 |
≥12.0 |
223±16 |
28±2 |
SmCo-YX28C |
1060~1180 |
10.6~11.8 |
763±40 |
9.6±0.5 |
≥1194 |
≥15.0 |
223±16 |
28±2 |
SmCo-YX30 |
1100~1200 |
11.0~12.0 |
438~597 |
5.5~6.5 |
454~597 |
5.7~7.5 |
238±16 |
30±2 |
SmCo-YX30A |
1100~1200 |
11.0~12.0 |
≥560 |
7.0~8.5 |
≥716 |
≥12.0 |
238±16 |
30±2 |
Characteristics & application of SmCo permanent magnet