China SmCo Magnet, Sintered SmCo Magnet
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Products Permanent Magnet >> Sintered SmCo Magnet

Sintered SmCo Magnet

As another kind of rare-earth permanent magnet--Samarium Cobalt(the following called SmCo-magnet) is widely used second generation rare-earth magnetic material. SmCo magnet is made from cobalt and samarium and other rare-earth elements, is a high performance permanent magnet, it exhibits high magnetic performance characteristics in energy  and coercive force. There are two compositions of magnets in this family: Sm1Co5 and Sm2Co17. The highest commercially available energy products of Sm2Co 17 are in the 30MGOe range. The 2:17(most popular) offers a better performance & lower temperature coefficient, however it is slightly more expensive and require very high magnetic field to magnetise it.
SmCo-magnet has higher maximum working temperatures than neodymium, although its maximum strengh is less. Its biggest advantage is its high working temperature up to 300 degree centigrade. In the meantime, its higher corrosion and oxidation resistance are also crucial. So SmCo magnets usually need not be plated with other metal. The cost of SmCo material is the most expensive, so SmCo-magnet is recommended only when its performance is a high temperature environment concerned .

SmCo Magnet Features:
1.Excellent resisitance to corrosion and oxidation.
2.Extremely brritle.
3.Impossible to demagnetise.
4.High resistance to demagnetization
5.Suitable in a temperature of over 100c to 350c or hostil enviroments.
6.Various shapes and dimensions can be met.
7.Low temperature coefficent.
8.High performance.

Applications:robotics,machine,tools,relays,sensors,watch,motors,transducers,instruments,positional detectors,generators,radar and etc.

SmCo Magnet Properties:

Material Grade Energy Product BH(max) Residual Induction
Br(min-max)
Coercive Force Hcb(min-max) Intrinsic Coercive Force Hcj(min-max) Density Max work Temp.
KJ/m3 MGoe T KGs KA/m KOe KA/m KOe g/cm3
SmCo5 XG16 120-143 15-18 0.77-0.86 7.7-8.6 613-716 7.7-9.0 ≧1194 ≧15 8.3 250
XG16H 120-143 15-18 0.77-0.86 7.7-8.6 613-716 7.7-9.0 ≧1592 ≧20
XG18 135-159 17-20 0.81-0.92 8.1-9.2 637-756 8.0-9.5 ≧1194 ≧15
XG18H 135-159 17-20 0.81-0.92 8.1-9.2 637-756 8.0-9.5 ≧1592 ≧20
XG20 151-175 19-22 0.85-0.95 8.5-9.5 637-756 8.0-9.5 ≧1194 ≧15
XG20H 151-175 19-22 0.85-0.95 8.5-9.5 637-756 8.0-9.5 ≧1592 ≧20
XG22 167-191 21-24 0.89-1.00 8.9-10 661-772 8.3-9.7 ≧1194 ≧15
XG22H 167-191 21-24 0.89-1.00 8.9-10 661-772 8.3-9.7 ≧1592 ≧20
Sm2Co17 XGS24M 175-199 22-25 0.92-1.04 9.2-10.4 318-788 4.0-9.9 398-1194 5.0-15.0 8.4 350
XGS24 175-199 22-25 0.92-1.04 9.2-10.4 661-796 8.3-10.0 1194-1990 15.0-25.0
XGS24H 175-199 22-25 0.92-1.04 9.2-10.4 661-804 8.3-10.1 ﹥1990 ﹥25.0
XGS26M 191-215 24-27 1.00-1.06 10.0-10.6 318-796 4.0-10.0 398-1194 5.0-15.0
XGS26 191-215 24-27 1.00-1.06 10.0-10.6 677-820 8.5-10.3 1194-1990 15.0-25.0
XGS26H 191-215 24-27 1.00-1.06 10.0-10.6 677-820 8.5-10.3 ﹥1990 ﹥25.0
XGS28M 207-231 26-29 10.4-11.0 10.4-11.0 318-804 4.0-10.1 398-1194 5.0-15.0
XGS28 207-231 26-29 10.4-11.0 10.4-11.0 677-820 8.5-10.3 1194-1990 15.0-25.0
XGS28H 207-231 26-29 10.4-11.0 10.4-11.0 677-820 8.5-10.3 ﹥1990 ﹥25.0
XGS30M 223-247 28-31 10.7-11.2 10.7-11.2 318-804 4.0-10.1 398-1194 5.0-15.0
XGS30 223-247 28-31 10.7-11.2 10.7-11.2 700-828 8.8-10.4 1194-1990 15.0-25.0
XGS30H 223-247 28-31 10.7-11.2 10.7-11.2 700-828 8.8-10.4 ﹥1990 ﹥25.0
XGS32M 231-255 29-32 10.9-11.5 10.9-11.5 318-804 4.0-10.1 398-955 5.0-12.0
XGS32 231-255 29-32 10.9-11.5 10.9-11.5 716-836 9.0-10.5 ﹥955 ﹥12.0
XGS22LT 159-183 20-23 9.0-9.9 9.0-9.9 677-756 8.5-9.5 ≧1194 ≧15.0
XGS24LT 159-183 20-23 9.2-10.2 9.2-10.2 677-756 8.5-9.5 ≧1194 ≧15.0

Related SmCo Magnet Keywords:

Sintered SmCo Magnet, Samarium Cobalt Magnet

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