SmCo Magnet
SmCo magnets known as Samarium, Samarium Cobalt or rare earth Cobalt magnets, are the second generation of rare earth permanent magnets. According to the difference between the production technologies, SmCo can be divided into bonded SmCo and sintered SmCo, but we are only specialized in sintered SmCo.
The sintered SmCo are anisotropic and can only be magnetized in the orientation direction. They consist mainly of Sm (Samarium) and Co (Coblat), and they are available with two series of materials, SmCo5 and Sm2Co17 often referred to as SmCo 1:5 and SmCo 2:17. SmCo5 have lower energy, Hcj (intrinsic coercive force), maximum operation temperature and Curie temperature than Sm2Co17, but SmCo5 are easier to magnetize to saturation.
They are available in a number of grades that span a wide range of properties and application requirements. They are powerful, with (BH)max range of 14MGOe~32MGOe; however, they are also very brittle and prone to cracking and chipping, so they must be handled with care and adequate protective gear. Due to their relative frailty, mechanisms and applications in which the magnets are used must be adapted and designed to support the material.
Characteristics:
High magnetic values – Br high to 11.3 kGs (1.13 T) and (BH)max high to 32 MGOe (255 kJ/m3)
High working temperature – maximum working temperature high to 250ºC~350ºC
Outstanding thermal stability – α(Br) low to -0.03 %/ºC and β(Hcj) low to -0.2%/ºC
Excellent corrosion resistance – no surface treatment needed
Excellent demagnetization resistance – maximum Hcj higher than 25 kOe (1990 kA/m)
Applications:
Due to their characteristics above, SmCo are the ideal magnetic material in following applications, particularly where the magnets are required to operate at high temperatures, across a broad temperature range, with stable magnetic field, or in a corrosive environment: travelling wave tubes, circulators, isolators, speakers, magnetron sputtering cathodes, sensors, servo motors, pump couplings, chemical pumps, magnetic assemblies, etc
Physical Properties:
Characteristics |
Reversible Temperature Coefficient 20-150ºC, α(Br) |
Reversible Temperature Coefficient 20-150ºC, β(Hcj) |
Coefficient of Thermal Expansion |
Thermal Conductivity |
Specific Heat |
Curie Temperature |
Flexural Strength |
Density |
Hardness, Vickers |
Electrical Resistivity |
Unit |
%/ºC |
%/ºC |
ΔL/L per ºCx10-6 |
kcal/mhrºC |
cal/gºC |
ºC |
Mpa |
g/cm3 |
Hv |
μΩ • cm |
SmCo5 |
-0.04 |
-0.2 |
//6⊥12 |
750 |
150-180 |
450-550 |
50~60 |
|||
Sm2Co17 |
-0.03 |
-0.2 |
//9⊥11 |
850 |
130-150 |
550-650 |
80~90 |
Magnetic Properties:
Material |
Grade |
Residual Induction |
Coercivity |
Intrinsic Coercivity |
Maximum Energy Product |
Density |
Curie Temp. |
Maximum Operating Temp. |
||||||
Br |
Hcb |
Hcj |
(BH )max |
D |
α(Br) |
β(Hcj) |
Tc |
Tw |
||||||
T |
kG |
kA/m |
kOe |
kA/m |
kOe |
kJ/m3 |
MGOe |
g/cm3 |
%/°C |
%/°C |
°C |
°C |
||
SmCo5 |
YX16 |
612-660 |
>1194 |
>15 |
110-135 |
14-17 |
-0.04 |
-0.20 |
750 |
250 |
||||
YX16H |
612-660 |
>1592 |
>20 |
110-135 |
14-17 |
-0.04 |
-0.20 |
750 |
250 |
|||||
YX18 |
644-700 |
>1194 |
>15 |
127-151 |
16-19 |
-0.04 |
-0.20 |
750 |
250 |
|||||
YX18H |
644-700 |
>1592 |
>20 |
127-151 |
16-19 |
-0.04 |
-0.20 |
750 |
250 |
|||||
YX20 |
676-725 |
>1194 |
>15 |
143-167 |
18-21 |
-0.04 |
-0.20 |
750 |
250 |
|||||
YX20H |
676-725 |
>1592 |
>20 |
143-167 |
18-21 |
-0.04 |
-0.20 |
750 |
250 |
|||||
YX22 |
710-748 |
>1194 |
>15 |
160-183 |
20-23 |
-0.04 |
-0.20 |
750 |
250 |
|||||
YX22H |
710-748 |
>1592 |
>20 |
160-183 |
20-23 |
-0.04 |
-0.20 |
750 |
250 |
|||||
YX24 |
730-780 |
>1194 |
>15 |
175-199 |
22-25 |
-0.04 |
-0.20 |
750 |
250 |
|||||
YX24H |
730-780 |
>1592 |
>20 |
175-199 |
22-25 |
-0.04 |
-0.20 |
750 |
250 |
|||||
Sm2Co17 |
YXG22 |
676-740 |
>1433 |
>18 |
160-183 |
20-23 |
-0.03 |
-0.20 |
850 |
350 |
||||
YXG22H |
676-740 |
>1990 |
>25 |
160-183 |
20-23 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG24 |
692-764 |
>1433 |
>18 |
175-191 |
22-24 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG24H |
692-764 |
>1990 |
>25 |
175-191 |
22-24 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG26M |
541-780 |
636-1433 |
8-18 |
191-207 |
24-26 |
-0.03 |
-0.20 |
850 |
300 |
|||||
YXG26 |
748-796 |
>1433 |
>18 |
191-207 |
24-26 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG26H |
748-796 |
>1990 |
>25 |
191-207 |
24-26 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG28M |
541-796 |
636-1433 |
8-18 |
207-223 |
26-28 |
-0.03 |
-0.20 |
850 |
300 |
|||||
YXG28 |
756-812 |
>1433 |
>18 |
207-223 |
26-28 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG28H |
756-812 |
>1990 |
>25 |
207-223 |
26-28 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG30M |
541-835 |
636-1433 |
8-18 |
223-240 |
28-30 |
-0.03 |
-0.20 |
850 |
300 |
|||||
YXG30 |
788-835 |
>1433 |
>18 |
223-240 |
28-30 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG30H |
788-835 |
>1990 |
>25 |
223-240 |
28-30 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG32M |
541-844 |
636-1433 |
8-18 |
230-255 |
29-32 |
-0.03 |
-0.20 |
850 |
300 |
|||||
YXG32 |
812-844 |
>1433 |
>18 |
230-255 |
29-32 |
-0.03 |
-0.20 |
850 |
350 |
|||||
YXG32H |
812-844 |
>1990 |
>25 |
230-255 |
29-32 |
-0.03 |
-0.20 |
850 |
350 |
|||||
Low Temp. Coefficient Sm2Co17 |
YXG22LT |
668-716 |
>1194 |
>15 |
167-183 |
21-23 |
-0.015 |
-0.20 |
850 |
350 |
Remarks:
Send product request
Other supplier products
Quick to position Built-in Bushing Magnet | Built-in bushing magnet is magnetic shuttering solutions for precast concrete industry! In fact, construction market is too small compared to a... | |
Hook Pot Magnet of NdFeB | Horizon have been producing and supplying the pot magnet. The pot magnet is also called cup magnet, holding magnet, round base magnet, mounti... | |
Reusable Bushing Magnet | Bushing magnet is magnetic shuttering solutions for precast concrete industry! In fact, construction market is too small compared to all Neodymi... | |
900Kg Shuttering Magnet | 900Kg shuttering magnet is magnetic shuttering solutions for precast concrete formworks! In fact, construction market is too small compare... | |
Countersunk cup magnet | Horizon have been producing and supplying the pot magnet. The pot magnet is also called cup magnet, holding magnet, round base magnet, mounting... |
Same products
Fishing Magnet Accessories | Seller: NINGBO SOUWEST MAGNETECH DEVELOPMENT CO.,LTD | Fishing magnet accessories including Fishing Magnet Rope, Fishing Magnet Toolbox, Threadcoker and... | |
Ferrite Pot Magnet | Seller: NINGBO SOUWEST MAGNETECH DEVELOPMENT CO.,LTD | The magnetic core in a pot magnet is ferrite material. High in magnetic strength for lower cost, ... | |
Souwest Magnetech Ferrite Magnets | Seller: NINGBO SOUWEST MAGNETECH DEVELOPMENT CO.,LTD | Ferrite magnets are permanent magnets in chinamade mainly from SrO or BaO and Fe2O3-- They are el... | |
Souwest Magnetech Double Sided Fishing Magnet | Seller: NINGBO SOUWEST MAGNETECH DEVELOPMENT CO.,LTD | Our double sided fishing magnetsfor sale is designed explicitly for magnet fishing. The users wil... | |
Deep Pot Magnets | Seller: NINGBO SOUWEST MAGNETECH DEVELOPMENT CO.,LTD | A deep pot magnet is a type of pot magnet. The magnet is housed in a cylindrical housing, usually... |