SmCo magnet is a kind of strong magnetic substance, which is widely used in industry, scientific research and other fields. Here is its detailed introduction:

1. Material composition: SmCo magnets are mainly composed of samarium (Sm) and cobalt (Co). Its chemical formula is SmCo5 or Sm2Co17, respectively representing the molar ratio of samarium and cobalt.

2. Magnetic properties: SmCo magnet is a strong magnetic material with excellent magnetic properties such as high coercive force, high remanence, and high magnetic energy product. Among them, the maximum coercive force of samarium cobalt 5 magnet (ie SmCo5) is about 25kOe, the remanence density is about 8kG, and the magnetic energy product is about 14MGOe; the maximum coercive force of samarium cobalt 17 magnet (ie Sm2Co17) is about 35kOe , The remanence density is about 10kG, and the magnetic energy product is about 30MGOe.

3. Manufacturing process: SmCo magnets are usually made by powder metallurgy process. The production process includes raw material preparation, mixing, pressing, sintering, processing and other steps. Among them, the sintering process is a key process in the production of samarium cobalt magnets, which directly affects its magnetic properties.

4. Application fields: SmCo disc magnets have the advantages of high temperature stability and good corrosion resistance, and are widely used in high-performance motors, sensors, solar panels and other fields. In addition, it can also be used to make high-tech products such as magnetic transmission systems and high-speed electric vehicles.

The above is the detailed introduction of samarium cobalt disc magnet, which has important scientific value and application prospect.

Samarium cobalt magnets are composed of samarium, cobalt and other rare earth materials by proportioning, and made by smelting, pressing and sintering, and which have high BH, corrosion resistance and oxidation resistance and extremely low reversible temperature coefficients. SmCo5 and Sm2Co17, (BH)max is in range of 16 to 32 MGOe. Maximum working temperature reaches 350°C. SmCo magnet has an extreme low temperature coefficient and perfect corrosion resistance.

Compared with NdFeB magnets, SmCo magnets have stronger corrosion resistance, higher temperature stability and suitable for high temperature environments.

Our SmCo magnets are all REACH and ROHS compliant and don’t contain any SVHC. It is produced according to ISO 9001 and ISO 14001 Quality Control Standards. PPAP, APQP, CPK/PPK, 8-D, CO, FTA are available. SmCo magnets can be made in blocks, discs, rings, arcs and many other shapes. If you require a bespoke SmCo magnets or magnetic assembly, Technical Support or our SmCo Magnet Technical Data Sheet, please contact us. If you need a quotation for an existing magnet shape or a bespoke shape, please contact us. We offer a highly competitive price for your reference.

Typical Magnetic Performance for SmCo magnet

Material	Grade	Remanence		Coercive Force		Intrinsic Coercive		Max Energy		Working Temp
		Br		Hcb		Hcj		(BH)max		Working Temp
		T	KGs	KA/m	KOe	KA/m	KOe	KJ/m³	MGOe	℃
SmCo5	XG18	0.85-0.90	8.5-9.0	650-700	8.3-8.8	1194-1830	15-23	127-143	16-18	≤250
SmCo5	XG20	0.90-0.94	9.0-9.4	666-725	8.5-9.1	1194-1830	15-23	143-159	18-20	≤250
SmCo5	XG22	0.94-0.97	9.4-9.7	700-748	8.9-9.4	1194-1830	15-23	159-175	20-22	≤250
SmCo5	XG24	0.97-1.02	9.7-10.2	720-780	9.2-9.7	1194-1830	15-23	175-195	22-24	≤250
SmCo5	XG18H	0.85-0.90	8.5-9.0	650-700	8.3-8.8	≥1830	≥23	127-143	16-18	≤250
SmCo5	XG20H	0.90-0.94	9.0-9.4	666-725	8.5-9.1	≥1830	≥23	143-159	18-20	≤250
SmCo5	XG22H	0.94-0.97	9.4-9.7	710-748	8.9-9.4	≥1830	≥23	159-175	20-22	≤250
SmCo5	XG24H	0.97-1.02	9.7-10.2	730-780	9.2-9.8	≥1830	≥23	175-195	22-24	≤250
Sm2Co17	XGS20L	0.90-0.94	9.0-9.4	533-732	6.7-9.2	636-955	8-12	143-159	18-20	≤250
Sm2Co17	XGS22L	0.94-0.97	9.4-9.7	533-740	6.7-9.3	636-955	8-12	159-175	20-22	≤250
Sm2Co17	XGS24L	0.97-1.02	9.7-10.2	541-756	6.8-9.5	636-955	8-12	175-191	22-24	≤250
Sm2Co17	XGS26L	1.02-1.05	10.2-10.5	541-764	6.8-9.6	636-955	8-12	191-207	24-26	≤250
Sm2Co17	XGS28L	1.05-1.08	10.5-10.8	541-780	6.8-9.8	636-955	8-12	207-223	26-28	≤250
Sm2Co17	XGS30L	1.08-1.11	10.8-11.1	541-796	6.8-10.0	636-955	8-12	223-239	28-30	≤250
Sm2Co17	XGS32L-A	1.11-1.13	11.1-11.3	549-804	6.9-10.1	636-955	8-12	239-255	30-31	≤250
Sm2Co17	XGS32L-B	1.13-1.145	11.3-11.45	550-805	6.9-10.1	636-955	8-12	246-262	31-32	≤250
Sm2Co17	XGS20M	0.90-0.94	9.0-9.4	637-732	8.0-9.2	955-1433	12-18	143-159	18-20	≤300
Sm2Co17	XGS22M	0.94-0.97	9.4-9.7	645-740	8.1-9.3	955-1433	12-18	159-175	20-22	≤300
Sm2Co17	XGS24M	0.97-1.02	9.7-10.2	661-764	8.3-9.6	955-1433	12-18	175-191	22-24	≤300
Sm2Co17	XGS26M	1.02-1.05	10.2-10.5	685-788	8.6-9.9	955-1433	12-18	191-207	24-26	≤300
Sm2Co17	XGS28M	1.05-1.08	10.5-10.8	693-812	8.7-10.2	955-1433	12-18	207-223	26-28	≤300
Sm2Co17	XGS30M	1.08-1.11	10.8-11.1	700-828	8.8-10.4	955-1433	12-18	223-239	28-30	≤300
Sm2Co17	XGS32L-A	1.11-1.13	11.1-11.3	812-860	10.2-10.8	≥1433	≥18	239-255	30-31	≤300
Sm2Co17	XGS32L-B	1.13-1.145	11.3-11.45	820-870	10.3-10.9	≥1433	≥18	239-255	31-32	≤300
Sm2Co17	XGS20	0.90-0.94	9.0-9.4	653-732	8.2-9.2	≥1433	≥18	143-159	18-20	≤300
Sm2Co17	XGS22	0.94-0.97	9.4-9.7	677-740	8.5-9.3	≥1433	≥18	159-175	20-22	≤300
Sm2Co17	XGS24	0.97-1.02	9.7-10.2	693-772	8.7-9.7	≥1433	≥18	175-191	22-24	≤300
Sm2Co17	XGS26	1.02-1.05	10.2-10.5	748-796	9.4-10.0	≥1433	≥18	191-207	24-26	≤300
Sm2Co17	XGS28	1.05-1.08	10.5-10.8	756-820	9.5-10.3	≥1433	≥18	207-223	26-28	≤300
Sm2Co17	XGS30	1.08-1.11	10.8-11.1	788-836	9.9-10.5	≥1433	≥18	223-239	28-30	≤300
Sm2Co17	XGS32-A	1.11-1.13	11.1-11.3	812-860	10.2-10.8	≥1433	≥18	239-255	30-31	≤300
Sm2Co17	XGS32-B	1.13-1.145	11.3-11.45	820-870	10.3-10.9	≥1433	≥18	239-255	31-32	≤300
Sm2Co17	XGS20H	0.90-0.94	9.0-9.4	661-732	8.3-9.2	≥1990	≥25	143-159	18-20	≤350
Sm2Co17	XGS22H	0.94-0.97	9.4-9.7	685-740	8.6-9.3	≥1990	≥25	159-175	20-22	≤350
Sm2Co17	XGS24H	0.97-1.02	9.7-10.2	700-772	8.8-9.7	≥1990	≥25	175-191	22-24	≤350
Sm2Co17	XGS26H	1.02-1.05	10.2-10.5	756-796	9.5-10.0	≥1990	≥25	191-207	24-26	≤350
Sm2Co17	XGS28H	1.05-1.08	10.5-10.8	765-820	9.6-10.3	≥1990	≥25	207-223	26-28	≤350
Sm2Co17	XGS30H	1.08-1.11	10.8-11.1	796-836	10.0-10.5	≥1990	≥25	223-239	28-30	≤350
Sm2Co17	XGS32-A	1.11-1.13	11.1-11.3	820-860	10.3-10.8	≥1990	≥25	239-255	30-31	≤350
Sm2Co17	XGS32-B	1.13-1.15	11.3-11.5	830-880	10.4-11.0	≥1990	≥25	246-262	31-32	≤350
Sm2Co17	XGS16LT	0.81-0.85	8.1-8.5	605-669	7.6-8.4	≥1592	≥20	111-127	14-16	≤300
Sm2Co17	XGS18LT	0.85-0.90	8.5-9.0	629-708	7.9-8.9	≥1592	≥20	127-143	16-18	≤300
Sm2Co17	XGS20LT	0.90-0.94	9.0-9.4	661-732	8.3-9.2	≥1592	≥20	143-159	18-20	≤300
Sm2Co17	XGS22LT	0.94-0.97	9.4-9.7	685-740	8.6-9.3	≥1592	≥20	159-175	20-22	≤300

Physical properties of SmCo magnet

Material

Modulus of

elasticity

Ultimate

tensile

strength

Density

Electrical Resistivity

Curie

temperature

Recoil

permeability

Temp. Coeff.

of Br

SmCo5

23 x 106 psi

6 x 103 psi

8.2 g/cm3

5 µ-ohm-cm/cm2

700-750 ℃

1.00-1.05

-0.045% / ℃

Sm2Co17

17 x 106 psi

5 x 103 psi

8.4 g/cm3

86 µ-ohm-cm/cm2

800-850 ℃

1.00-1.10

-0.03 % / ℃

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