Rare Earth SmCo Magnets

As one of the professional industrial magnet manufacturers, we focus on the development and sales of magnetic assemblies, related products involve neodymium pot(cup) magnets, ferrite pot(cup)magnets, rubber-coated(rubberized) pot magnets, salvage fishing magnets, all kinds of magnetic hooks, magnetic holder, and office magnets. These magnetic products can meet the needs of multidisciplinary applications for holding&fixing, salvaging & lifting, mounting, and hanging.

Rare Earth SmCo Magnets

Rare earth samarium-cobalt magnet（shorted as SmCo magnet）is a kind of rare earth magnet for high temperature resistance. It is a kind of functional magnetic material made of samarium magnet, cobalt and other metal rare earth materials by mixing, melting, grinding, pressing and sintering. SmCo magnets are classified as Sm1Co5 and Sm2Co17/Sm2Co17 magnetaccording the composition ratios of samarium and cobalt.

Application of rare earth samarium-cobalt（SmCo )magnets

Due to strong corrosion resistance and oxidation resistance, samarium-cobalt magnet(SmCo magnets) are widely used in aerospace, national defense and military industry, microwave devices, communication, medical equipment, instruments, meters, various magnetic transmission devices, sensors, magnetic processors, motors, magnetic cranes, etc.

Advantages of samarium-cobalt（SmCo）rare earth magnets

Samarium cobalt magnets for salehave high magnetic energy product,the maximum magnetic energy product of samarium-cobalt(SmCo) magnets ranges from 16MGOe to 32MGOe, and its theoretical limit is 34MGOe. SmCo magnets also known as strong rare earth magnets.

SmCo magnets have extremely low temperature coefficient. The maximum working temperature can reach 350 ℃ and the negative temperature is unlimited. When the working temperature is above 180 ℃, all of the maximum magnetic energy product (BHmax), coercivity, temperature stability and chemical stability are better than those of neodymium-iron-boron.

SmCo magnets have strong corrosion resistance and oxidation resistance,surface treatment not needed for SmCo.

Disadvantages of rare earth samarium cobalt（SmCo）magnets

lSamarium-cobalt magnets are easy to peel. Goggles must be worn when handling them.

lSmCo magnets are made by a process called sintering, and sintering of all materials. cracks are very likely to occur inside

lThe machining performance of SmCo magnet is poor,small corners are easy to be produced because of slight collision during the process of production,packing, and transportation.

Magnetic properties of samarium-cobalt magnets(SmCo magnets)

Material	Grade	Energy Product BH(max)		Residual InductionBr(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			613-716		≧1194	≧15		250
	XG16H	120-143	15-18			613-716		≧1592	≧20
	XG18	135-159	17-20			637-756		≧1194	≧15
	XG18H	135-159	17-20			637-756		≧1592	≧20
	XG20	151-175	19-22			637-756		≧1194	≧15
	XG20H	151-175	19-22			637-756		≧1592	≧20
	XG22	167-191	21-24			661-772		≧1194	≧15
	XG22H	167-191	21-24			661-772		≧1592	≧20
Sm2Co17	XGS24M	175-199	22-25			318-788		398-1194			350
	XGS24	175-199	22-25			661-796		1194-1990
	XGS24H	175-199	22-25			661-804		﹥1990	﹥25.0
	XGS26M	191-215	24-27			318-796		398-1194
	XGS26	191-215	24-27			677-820		1194-1990
	XGS26H	191-215	24-27			677-820		﹥1990	﹥25.0
	XGS28M	207-231	26-29			318-804		398-1194
	XGS28	207-231	26-29			677-820		1194-1990
	XGS28H	207-231	26-29			677-820		﹥1990	﹥25.0
	XGS30M	223-247	28-31			318-804		398-1194
	XGS30	223-247	28-31			700-828		1194-1990
	XGS30H	223-247	28-31			700-828		﹥1990	﹥25.0
	XGS32M	231-255	29-32			318-804		398-955
	XGS32	231-255	29-32			716-836		﹥955	﹥12.0
	XGS22LT	159-183	20-23			677-756		≧1194	≧15.0
	XGS24LT	159-183	20-23			677-756		≧1194	≧15.0

Friendly reminding for ordering rare earth SmCo magnets:

The products with a competitive samarium cobalt magnet pricehave better mechanical and physical properties than SmCo(2:17) magnets, which is slightly easier to process

If SmCo magnets are used in acid-base environment and another bad environment, electroplating treatment can be adopted on the them, Nickel-coated SmCo magnets, Zinc-coated SmCo magnets, Epoxy-coated SmCo magnets etc can be supplied

If you need un-magnetized SmCo magnets,you should be familiar with the magnetizing energy of your magnetizing equipment, so as to choose the correct SmCo magnet gradeswhich can be completely full magnetized.

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