The Samarium Cobalt magnet is one type rare earth matrial permanent magnets. It is manufactured by using powder metallurgy techniques, and which offer the best performance value.
SmCo magnets are also named with SmCo magnetic steels, SmCo permanent magnet, SmCo permanent magnetic iron and rare earth cobalt permanent magnet.
1. It is a high performance, low temperature coefficient permanent magnet with its high working temperature-350 degree centigrade. When working above 180 degree centigrade,
2. it's maximum energy prodcut BH and steady temperature are superior than NdFeB magnetic material.
3. It needn't to be coated because it is difficult to be eroded and oxidized.
SmCo magnets are also named with SmCo magnetic steels, SmCo permanent magnet, SmCo permanent magnetic iron and rare earth cobalt permanent magnet.
1. It is a high performance, low temperature coefficient permanent magnet with its high working temperature-350 degree centigrade. When working above 180 degree centigrade,
2. it's maximum energy prodcut BH and steady temperature are superior than NdFeB magnetic material.
3. It needn't to be coated because it is difficult to be eroded and oxidized.
4. SmCo magnets widely used in transduces, instruments, etc.
The demagnetized curve of sintered SmCo magnet
The demagnetized curve of sintered SmCo magnet
Magnetic Characteristics of Sintered SmCo:
Materia | Grade | Max Engery product | Remanence | Coercive Force | Intrinsic Coercive Force | Temp Coeff | Density | Curie Temp | Working Temp |
(BH)max | Br | Hcb | Hcj | αBr | D | Tc | Tw | ||
KJ/m3(MGOe) | mT(KGs) | KA/m(KOe) | KA/m(KOe) | %/ ℃ | g/cm3 | ℃ | ℃ | ||
Sm1Co5 | 18A | 143(18) | 850(8.5) | 597(7.5) | 1273(16.0) | -0.04 | 8.2 | 740 | 250 |
18B | 143(18) | 850(8.5) | 660(8.3) | 1600(20.0) | |||||
19 | 150(19) | 900(9.0) | 690(8.7) | 900(11.3) | |||||
20A | 159(20) | 900(9.0) | 613(7.7) | 1989(25.0) | |||||
20B | 160(20) | 900(9.0) | 660(8.3) | 900(11.3) | |||||
20C | 160(20) | 900(9.0) | 680(8.5) | 1270(16.0) | |||||
21 | 165(21) | 920(9.2) | 710(8.9) | 1600(20.0) | |||||
22A | 175(22) | 940(9.4) | 700(8.8) | 900(11.3) | |||||
22B | 180(22) | 950(9.5) | 720(9.0) | 1270(16.0) | |||||
Sm2Co17 | 24C | 191(24) | 1000(10.0) | 356(4.5) | 413(5.2) | -0.03 | 8.3 | 820 | 350 |
24D | 190(24) | 1000(10.0) | 480(6.0) | 560(7.0) | |||||
24E | 190(24) | 1010(10.1) | 675(8.5) | 1300(16.0) | |||||
24F | 190(24) | 980(9.8) | 710(8.9) | 900(11.3) | |||||
24G | 190(24) | 1000(10.0) | 740(9.3) | 2070(26.0) | |||||
24H | 195(24) | 1020(10.2) | 748(9.4) | 1433(18.0) | |||||
25 | 205(26) | 1040(10.4) | 700(8.8) | 1300(16.0) | |||||
26A | 205(26) | 1020(10.2) | 420(5.2) | 440(5.5) | |||||
26B | 207(26) | 1030(10.3) | 716(9.0) | 1432(18.0) | |||||
26C | 210(26) | 1020(10.2) | 740(9.3) | 900(11.3) | |||||
26D | 205(26) | 1050(10.5) | 756(9.5) | 1433(18.0) | |||||
26E | 210(26) | 1070(10.7) | 780(9.8) | 2070(26.0) | |||||
28A | 220(28) | 1080(10.8) | 420(5.2) | 440(5.5) | |||||
28B | 223(28) | 1100(11.0) | 438(5.5) | 454(5.7) | |||||
28C | 220(28) | 1090(10.9) | 520(6.5) | 560(7.0) | |||||
28D | 224(28) | 1110(11.1) | 640(8.0) | 1040(13.0) | |||||
28E | 225(28) | 1060(10.6) | 760(9.6) | 900(11.3) | |||||
28F | 220(28) | 1080(10.8) | 780(9.8) | 955(18.0) | |||||
28G | 220(28) | 1100(11.0) | 820(10.3) | 2070(26.0) | |||||
30A | 240(30) | 1100(11.0) | 780(9.8) | 900(11.3) |