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Products: Permanent Magnets >> Sintered SmCo Magnet (Samarium Cobalt)
General Introduction SmCo is a high performance, low temperature coefficient permanent magnet with its high working temperature—350 degree centigrade. When working above 180 degree centigrade, its maximum energy product BH and steady temperature are superior than NdFeB magnetic materials. Sintered SmCo needn’t to be coated because it is difficult to be eroded and oxidized. Sintered SmCo is widely used in motors, watch, transducers, instruments, positional detector, generators, radar communications, medical equipments, various magnetism spreading devices, magnetic processor, electrical engineering and magnetic derrick.
What shapes can it be formed with SmCo magnet? SmCo material, samarium cobalt

Magnetic properties of SmCo5

Material	Grade	Remanence		Coercive Force		Intrinsic Coercive Force		Max. energy product		Curie Temperature	Max. Operating Temperature	Temperature Coefficient of Br	Temperature Coefficient of Hc
Material	Grade	Br		Hcb		Hcj		(BH)max		Tc	Tw	Temperature Coefficient of Br	Temperature Coefficient of Hc
SmCo₅ (Smpr)co₅		T	KGs	KA/m	KOe	KA/m	KOe	KJ/m³	MGoe	°C	°C	%°C	%°C
	YX- 16	0.81-0.85	8.1- 8.5	620-660	7.8- 8.3	1194-1830	15-23	110-127	14-16	750	250	-0.05	-0.3
	YX- 18	0.85-0.9	8.5- 9.0	660-700	8.3- 8.8	1194-1830	15-23	127-143	16-18	750	250	-0.05	-0.3
	YX- 20	0.9-0.94	9.0- 9.4	680-725	8.5-9.1	1194-1830	15-23	150-167	19-21	750	250	-0.05	-0.3
	YX- 22	0.92-0.96	9.2- 9.6	710-750	8.9-9.4	1194-1830	15-23	160-175	20-22	750	250	-0.05	-0.3
	YX- 24	0.96-1.0	9.6- 10.0	730-770	9.2-9.7	1194-1830	15-23	175-190	22-24	750	250	-0.05	-0.3
SmCo₅	YX- 20s	0.9-0.94	9.0- 9.4	680-725	8.5-9.1	1433-1830	18-23	143-160	18-20	750	250	-0.05	-0.3
SmCo₅	YX- 22s	0.92-0.96	9.2- 9.6	710-750	8.9-9.4	1433-1830	18-23	160-175	20-22	750	250	-0.05	-0.3
Low temperature coefficient SmCo5 (SmGd)Co₅	LTc (YX- 10)	0.59-0.63	5.9- 6.3	460-493	5.8-6.2	1430-1830	18-23	68-80	8.5-10	700	250	Temperature	Temperature Coefficient of Br %°C
												20-100°C	-0.004
												100-200°C	-0.021
												200-300°C	-0.042
ce(coFecu)₅	YX- 12	0.70-0.74	7.0- 7.4	358-390	4.5-4.9	358-478	4.5-6	80-103	10-13	450	200

Magnetic properties of Sm2Co17

Material	Grade	Remanence		Coercive Force		Intrinsic Coercive Force		Max. energy product		Curie Temperature	Max. Operating Temperature	Temperature Coefficient of Br	Temperature Coefficient of Hc
Material	Grade	Br		Hcb		Hcj		(BH)max		Tc	Tw	Temperature Coefficient of Br	Temperature Coefficient of Hc
Sm2Co17 Sm₂ (CoFecuzr)₁₇	YXG- 24H	0.95-1.02	9.5- 10.2	700-750	8.7-9.4	=1990	=25	175-191	22-24	800	350	-0.03	-0.2
	YXG- 26H	1.02-1.05	10.2- 10.5	750-780	9.4-9.8	=1990	=25	191-207	24-26	800	350	-0.03	-0.2
	YXG- 28H	1.03-1.08	10.3- 10.8	756-796	9.5-10	=1990	=25	207-220	26-28	800	350	-0.03	-0.2
	YXG- 30H	1.08-1.10	10.8- 11.0	788-835	9.9-10.5	=1990	=25	220-240	28-30	800	350	-0.03	-0.2
	YXG- 24	0.95-1.02	9.5- 10.2	700-750	8.7-9.4	=1433	=18	175-191	22-24	800	300	-0.03	-0.2
	YXG- 26	1.02-1.05	10.2- 10.5	750-780	9.4-9.8	=1433	=18	191-207	24-26	800	300	-0.03	-0.2
	YXG- 28	1.03-1.08	10.3- 10.8	756-796	9.5-10	=1433	=18	207-220	26-28	800	300	-0.03	-0.2
	YXG- 30	1.08-1.10	10.8- 11.0	788-835	9.9-10.5	=1433	=18	220-240	28-30	800	300	-0.03	-0.2
	YXG- 26M	1.02-1.05	10.2- 10.5	750-780	9.4-9.8	955-1273	12-16	191-207	24-26	800	300	-0.03	-0.2
	YXG- 28M	1.03-1.08	10.3- 10.8	756-796	9.5-10.0	955-1273	12-16	207-220	26-28	800	300	-0.03	-0.2
	YXG- 30M	1.08-1.10	10.8- 11.0	788-835	9.9-10.5	955-1273	12-16	220-240	28-30	800	300	-0.03	-0.2
	YXG- 28L	1.02-1.08	10.2- 10.8	398-445	5.0-5.6	400-520	5.2-6.5	207-220	26-28	800	250	-0.03	-0.2
	YXG- 30L	1.08-1.15	10.8- 11.5	398-445	5.0-5.6	400-520	5.2-6.5	220-240	28-30	800	250	-0.03	-0.2
Low temperature coefficient Sm2Co17 (SmEr)₂ (CoTM)₁₇	LTC (YXG- 22)	0.94-0.98	9.4- 9.8	668-715	8.4-9.0	1194-1591	15-20	167-183	21-23	840	300	Temperature	Temperature Coefficient of Br %°C
												-50-25°C	+0.005
												20-100°C	+0.012
												100-200°C	+0.006
												200-300°C	-0.025

Characteristic comparisons of permanent magnetic materials:

Materials	(BH)max	Hcj	Br Tc	(Working temperature)max	Anti-causticity
SmCo1：5	16-25	15-25	-0.05	200-250	Good
SmCo2：17	22-30	6-30	-0.03	300-350	Good
NdFeB	26-52	12-30	-0.11	80-200	Bad
Ferrite magnet	3-4.5	3-4.5	-0.19	200-300	Good
AINiCo	5-10	1-1.8	-0.03	450-500	Excellent

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