Resistant samarium-cobalt magnets SmCo

Rare-earth SmCo magnetSimilarly to recently very popular neodymium magnets (NdFeB magnets), also samarium magnets (SmCo) belong to the strongest magnets. Their power is almost comparable with the power of neodymium magnets.

On-line sale of SmCo magnets

Choose the magnet shape and the way of magnetizing

Main benefits of samarium magnets

However, on contrary to neodymium magnets, they are characterized with one very remarkable positive feature, i.e. their temperature resistance. The temperature resistance may be even up to 300 °C (in neodymium magnets this is 200 °C at maximum).

Another great strength of these magnets consists in their resistance against corrosion without a need of a surface treatment - therefore the SmCo magnets are supplied without any surface treatment.

Composition of the SmCo magnet

According to the ratio of main elements contained in these magnets, samarium - Sm and cobalt, Co, we divide them into two main types: SmCo5 and Sm2Co17.

We guarantee operative delivery dates

As for the usual offer of prisms, cylinders and rings, we supply within 3-5 days after receipt your order.

Magnets comparison table

 Ferrite isotropic
Ferrite anisotropicRare-earth
SmCoAlNiCo
Price
Force
Temperature resistance
Chemical resistance  

 

In the following table you may choose the magnetic and physical properties of SmCo materials that will suit you most.

Magnetic properties (at the temperature of 20 °C)

TyepResidual Induction (Br)Coercive Force (Hcb)

Intrinsic Coercive Force (Hcj)

Max. Energy Product (BH max)Curie temp..
 mTkGskA/mkOekA/mkOekJ/m³MGOe°C
SmCo5(SmPr)Co5
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
YX-18 0.85-0.90 8.5-9.0 660-700 8.3-8.8 1194-1830 15-23 127-143 16-18 750
YX-20 0.90-0.94 9.0-9.4 676-725 8.5-9.1 1194-1830 15-23 150-167 19-21 750
YX-22 0.92-0.96 9.2-9.6 710-748 8.9-9.4 1194-1830 15-23 160-175 20-22 750
YX-24 0.96-1.00 9.6-10.0 730-770 9.2-9.7 1194-1830 15-23 175-190 22-24 750
SmCo5
YX-16s 0.79-0.84 7.9-8.4 620-660 7.8-8.3 ≥1830 ≥23 118-135 15-17 750
YX-18s 0.84-0.89 8.4-8.9 660-700 8.3-8.8 ≥1830 ≥23 135-151 17-19 750
YX-20s 0.89-0.93 8.9-9.3 684-732 8.6-9.2 ≥1830 ≥23 150-167 19-21 750
YX-22s 0.92-0.96 9.2-9.6 710-756 8.9-9.5 ≥1830 ≥23 167-183 21-23 750
YX-24s 0.96-1.00 9.6-10.0 740-788 9.3-9.9 ≥1830 ≥23 183-199 23-25 750
SmCo5 (SmGd)Co5
LTc
(YX-10)
0.62-0.66 6.2-6.6 485-517 6.1-6.5 ≥1830 ≥23 75-88 9.5-11 750
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
Sm2Co17 Sm2(CoFecuzr)17
YXG-24H 0.95-1.02 9.5-10.2 692-764 8.7-9.6 ≥1990 ≥25 175-191 22-24 800
YXG-26H 1.02-1.05 10.2-10.5 748-796 9.4-10.0 ≥1990 ≥25 191-207 24-26 800
YXG-28H 1.03-1.08 10.3-10.8 756-812 9.5-10.2 ≥1990 ≥25 207-220 26-28 800
YXG-30H 1.08-1.10 10.8-11.0 788-835 9.9-10.5 ≥1990 ≥25 220-240 28-30 800
YXG-32H 1.10-1.13 11.0-11.3 812-860 10.2-10.8 ≥1990 ≥25 230-255 29-32 800
YXG-22 0.93-0.97 9.3-9.7 676-740 8.5-9.3 ≥1433 ≥18 160-183 20-23 800
YXG-24 0.95-1.02 9.5-10.2 692-764 8.7-9.6 ≥1433 ≥18 175-191 22-24 800
YXG-26 1.02-1.05 10.2-10.5 748-796 9.4-10.0 ≥1433 ≥18 191-207 24-26 800
YXG-28 1.03-1.08 10.3-10.8 756-812 9.5-10.2 ≥1433 ≥18 207-220 26-28 800
YXG-30 1.08-1.10 10.8-11.0 788-835 9.9-10.5 ≥1433 ≥18 220-240 28-30 800
YXG-32 1.10-1.13 11.0-11.3 812-860 10.2-10.8 ≥1433 ≥18 230-255 29-32 800
YXG-26M 1.02-1.05 10.2-10.5 676-780 8.5-9.8 955-1433 12-18 191-207 24-26 800
YXG-28M 1.03-1.08 10.3-10.8 676-796 8.5-10.0 955-1433 12-18 207-220 26-28 800
YXG-30M 1.08-1.10 10.8-11.0 676-835 8.5-10.5 955-1433 12-18 220-240 28-30 800
YXG-32M 1.10-1.13 11.0-11.3 676-852 8.5-10.7 955-1433 12-18 230-255 29-32 800
YXG-24L 0.95-1.02 9.5-10.2 541-716 6.8-9.0 636-955 8.12 175-191 22-24 800
YXG-26L 1.02-1.05 10.2-10.5 541-748 6.8-9.4 636-955 8.12 191-207 24-26 800
YXG-28L 1.03-1.08 10.3-10.8 541-764 6.8-9.6 636-955 8.12 207-220 26-28 800
YXG-30L 1.08-1.15 10.8-11.5 541-796 6.8-10.0 636-955 8.12 220-240 28-30 800
YXG-32L 1.10-1.15 11.0-11.5 541-812 6.8-10.2 636-955 8.12 230-255 29-32 800
Sm2Co17 (SmEr)2(CoTM)17
LTC
(YXG-22)
0.94-0.98 9.4-9.8 668-716 8.4-9.0 ≥1433 ≥18 167-183 21-23 840

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