Available Grades of Samarium Cobalt SmCo Magnet

SmCo Magnets Grade Info

SmCo magnet is high performance, low temperature coefficient permanent made of samarium and cobalt and other rare-earth elements. Its biggest advantage is high working temperature-300 degree centigrade. It does not need to be coated because it is difficult to be eroded and oxidized. SmCo magnet is widely used in motor, watch, transducers, instruments, positional detector, generator, radar, etc.

As part of the rare earth group of permanent magnets, samarium cobalt SmCo magnets typically fall into two families of materials. They include rare earth Sm1Co5 and Sm2Co17 and are referred to as 1:5 and 2:17 materials. There are three different manufacturing processes: sintered SmCo magnet, bonded SmCo magnet, and injection molding SmCo magnet.

Available Grades of SmCo Magnet

Stanford Magnets SmCo Magnet Grade
Composite	Type	Grade	Residual Induction/BR (Gauss)	Coercive Force/Hc (Oe)	Intrinsic Coercive Force/Hci (Koe)	Max.Energy Product/Bhmax (MGOe)	Maximum Operating Temp (°C/°F)	Curie Temp (°C/°F)
Sm1Co5	N	16	8100	7800	15	16	127/260	482/899
Sm1Co5	N	18	8500	8300	15	18	143/289	482/899
Sm1Co5	N	20	9000	8500	15	20	167/332	482/899
Sm1Co5	N	22	9200	8900	15	22	175/347	482/899
Sm1Co5	N	24	9600	9200	15	24	190/374	482/899
Sm1Co5	NS	16S	7900	7700	23	17	135/275	482/899
Sm1Co5	NS	18S	8400	8100	23	19	151/303	482/899
Sm1Co5	NS	20S	8900	8600	23	21	167/332	482/899
Sm1Co5	NS	22S	9200	8900	23	23	183/361	482/899
Sm1Co5	NS	24S	9600	9300	23	25	199/390	482/899
Sm1Co5	NX	10X	6200	6100	23	11	88/190	572/1061
Sm2Co17	NL	24L	9500	6800	8-12	24	191/375	482/899
Sm2Co17	NL	26L	10200	6800	8-12	26	207/404	482/899
Sm2Co17	NL	28L	10500	6800	8-12	28	220/428	482/899
Sm2Co17	NL	30L	10800	6800	8-12	30	240/464	482/899
Sm2Co17	NL	32L	11000	6800	8-12	32	255/491	482/899
Sm2Co17	NM	26M	10200	8500	12-18	26	207/404	572/1061
Sm2Co17	NM	28M	10500	8500	12-18	28	220/428	572/1061
Sm2Co17	NM	30M	10800	8500	12-18	30	240/464	572/1061
Sm2Co17	NM	32M	11000	8500	12-18	32	255/491	572/1061
Sm2Co17	N	24	9500	8700	18	24	191/375	572/1061
Sm2Co17	N	26	10200	9400	18	26	207/404	572/1061
Sm2Co17	N	28	10500	9700	18	28	220/428	572/1061
Sm2Co17	N	30	10800	9900	18	30	240/464	572/1061
Sm2Co17	N	32	11000	10200	18	32	255/491	572/1061
Sm2Co17	NH	24H	9500	8700	25	24	191/375	662/1223
Sm2Co17	NH	26H	10200	9400	25	26	207/404	662/1223
Sm2Co17	NH	28H	10500	9700	25	28	220/428	662/1223
Sm2Co17	NH	30H	10800	9900	25	30	240/464	662/1223
Sm2Co17	NH	32H	11000	10200	25	32	255/491	662/1223
Sm2Co17	NX	22X	9400	8400	15-20	22	175/347	572/1061

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