SmCo Magnets
- Description
- Parameter
- Application
- Coatings
The SmCo Magnet is a high performance, low temperature coefficient permanent magnet made of samarium and cobalt and other rare-earth elements. Its biggest advantage is its high working temperature---350℃,It needn't to be coated because it is difficult to be eroded and oxidized. SmCo magnet is widely used in motors、watch, transducers ,instruments, positional detector, generators, radar and other applications.
>>Production Chart of Sintered NdFeB
>>Magnetic Properties of Sintered SmCo Magnets
|
Magnetic Properties of Sintered SmCo Magnets |
||||||||||
|
Material |
Grade |
Br |
Hcb |
Hcj |
(BH) max |
TW |
||||
|
T |
KA/m |
KA/m |
KJ/m3 |
|||||||
|
KGs |
KOe |
KOe |
MGOe |
|||||||
|
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
℃ |
||
|
SmCo5 & Sm(Pr)Co |
YX18 |
0.92 |
0.82 |
756 |
639 |
1751 |
1194 |
159 |
127 |
250 |
|
9.2 |
8.2 |
9.5 |
8 |
22 |
15 |
20 |
16 |
|||
|
YX20 |
0.95 |
0.87 |
756 |
639 |
1751 |
1194 |
175 |
143 |
||
|
9.5 |
8.7 |
9.5 |
8 |
22 |
15 |
22 |
18 |
|||
|
YX22 |
1 |
0.93 |
772 |
660 |
1751 |
1194 |
207 |
175 |
||
|
10 |
9.3 |
9.7 |
8.3 |
22 |
15 |
24 |
20 |
|||
|
YX24 |
1.04 |
0.96 |
780 |
660 |
1751 |
1194 |
207 |
175 |
||
|
10.4 |
9.6 |
9.8 |
8.3 |
22 |
15 |
26 |
22 |
|||
|
Sm2Co17 |
YGX24M |
1.04 |
0.96 |
772 |
318 |
955 |
398 |
207 |
175 |
350 |
|
1.04 |
9.6 |
9.7 |
4 |
12 |
5 |
26 |
22 |
|||
|
YGX24 |
1.04 |
0.96 |
780 |
660 |
≥1194 |
207 |
175 |
|||
|
10.4 |
9.6 |
9.8 |
8.3 |
≥15.0 |
26 |
22 |
||||
|
YGX24H |
1.04 |
0.96 |
780 |
660 |
≥1592 |
207 |
175 |
|||
|
10.4 |
9.6 |
9.8 |
8.3 |
≥20.0 |
26 |
22 |
||||
|
YGX26M |
1.07 |
1 |
796 |
318 |
955 |
398 |
223 |
191 |
||
|
10.7 |
10 |
10 |
4 |
12 |
5 |
28 |
25 |
|||
|
YGX26 |
1.07 |
1 |
820 |
677 |
≥1194 |
223 |
191 |
|||
|
10.7 |
10 |
10.3 |
8.5 |
≥15.0 |
28 |
25 |
||||
|
YGX26H |
1.07 |
1 |
820 |
677 |
≥1592 |
28 |
25 |
|||
|
10.7 |
10 |
10.3 |
8.5 |
≥20.0 |
28 |
25 |
||||
|
Magnetic Properties of Sintered SmCo Magnets |
||||||||||
|
Material |
Grade |
Br |
Hcb |
Hcj |
(BH) max |
TW |
||||
|
T |
KA/m |
KA/m |
KJ/m3 |
|||||||
|
KGs |
KOe |
KOe |
MGOe |
|||||||
|
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
℃ |
||
|
Sm2Co17 |
YGX28M |
1.1 |
1.04 |
796 |
318 |
955 |
398 |
239 |
207 |
350 |
|
11 |
10.4 |
10 |
4 |
12 |
5 |
30 |
26 |
|||
|
YGX28 |
1.1 |
1.04 |
820 |
677 |
≥1194 |
239 |
207 |
|||
|
11 |
10.4 |
10.3 |
8.5 |
≥15.0 |
30 |
26 |
||||
|
YGX28H |
1.1 |
1.04 |
820 |
677 |
≥1592 |
239 |
207 |
|||
|
11 |
10.4 |
10.3 |
8.5 |
≥20.0 |
30 |
26 |
||||
|
YGX30M |
1.12 |
1.07 |
796 |
318 |
955 |
398 |
247 |
223 |
||
|
11.2 |
10.7 |
10 |
4 |
12 |
5 |
31 |
28 |
|||
|
YGX30 |
1.12 |
1.07 |
820 |
677 |
≥1194 |
247 |
223 |
|||
|
11.2 |
10.7 |
10.3 |
8.5 |
≥15.0 |
31 |
28 |
||||
|
YGX32M |
1.15 |
1.09 |
796 |
318 |
955 |
398 |
31 |
28 |
||
|
11.5 |
10.9 |
10 |
4 |
12 |
5 |
32 |
29 |
|||
|
YGX32 |
1.15 |
1.09 |
820 |
677 |
≥955 |
262 |
238 |
|||
|
11.5 |
10.9 |
10.3 |
8.5 |
≥12.0 |
32 |
29 |
||||
|
Low Temp. Coeff Sm2Co17
|
YXG22LT |
1 |
0.93 |
756 |
677 |
≥1194 |
191 |
159 |
350 |
|
|
10 |
9.3 |
9.5 |
8.5 |
≥15.0 |
26 |
22 |
||||
|
YXG24LT |
1.04 |
0.96 |
756 |
677 |
≥1194 |
223 |
191 |
|||
|
10.4 |
9.6 |
9.5 |
8.5 |
≥15.0 |
26 |
22 |
||||
|
YXG26LT |
1.07 |
1 |
812 |
677 |
≥1433 |
223 |
191 |
|||
|
10.7 |
10 |
10.2 |
8.5 |
≥18.0 |
28 |
25 |
||||
>>Physical Properties of Sintered SmCo
|
Physical Properties of Sintered SmCo Magnets |
||
|
Material |
SmCo 1:5 |
SmCo 2:17 |
|
Br Temp. Coefficient (%/℃) |
-0.04 |
-0.03 |
|
Curie Temp. (TC ℃) |
750 |
800 |
|
Density (g/c m³) |
8.1-8.2 |
8.3 |
|
Vickers Hardness (Hv) |
400-500 |
500-600 |
|
Working Temp. (℃) |
250 |
280-300 |
|
Magnetic Properties of Sintered SmCo Magnets |
||||||||||
|
Material |
Grade |
Br |
Hcb |
Hcj |
(BH) max |
TW |
||||
|
T |
KA/m |
KA/m |
KJ/m3 |
|||||||
|
KGs |
KOe |
KOe |
MGOe |
|||||||
|
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
℃ |
||
|
SmCo5 |
YX18 |
0.92 |
0.82 |
756 |
639 |
1751 |
1194 |
159 |
127 |
250 |
|
9.2 |
8.2 |
9.5 |
8 |
22 |
15 |
20 |
16 |
|||
|
YX20 |
0.95 |
0.87 |
756 |
639 |
1751 |
1194 |
175 |
143 |
||
|
9.5 |
8.7 |
9.5 |
8 |
22 |
15 |
22 |
18 |
|||
|
YX22 |
1 |
0.93 |
772 |
660 |
1751 |
1194 |
207 |
175 |
||
|
10 |
9.3 |
9.7 |
8.3 |
22 |
15 |
24 |
20 |
|||
|
YX24 |
1.04 |
0.96 |
780 |
660 |
1751 |
1194 |
207 |
175 |
||
|
10.4 |
9.6 |
9.8 |
8.3 |
22 |
15 |
26 |
22 |
|||
|
Sm2Co17 |
YGX24M |
1.04 |
0.96 |
772 |
318 |
955 |
398 |
207 |
175 |
350 |
|
1.04 |
9.6 |
9.7 |
4 |
12 |
5 |
26 |
22 |
|||
|
YGX24 |
1.04 |
0.96 |
780 |
660 |
≥1194 |
207 |
175 |
|||
|
10.4 |
9.6 |
9.8 |
8.3 |
≥15.0 |
26 |
22 |
||||
|
YGX24H |
1.04 |
0.96 |
780 |
660 |
≥1592 |
207 |
175 |
|||
|
10.4 |
9.6 |
9.8 |
8.3 |
≥20.0 |
26 |
22 |
||||
|
YGX26M |
1.07 |
1 |
796 |
318 |
955 |
398 |
223 |
191 |
||
|
10.7 |
10 |
10 |
4 |
12 |
5 |
28 |
25 |
|||
|
YGX26 |
1.07 |
1 |
820 |
677 |
≥1194 |
223 |
191 |
|||
|
10.7 |
10 |
10.3 |
8.5 |
≥15.0 |
28 |
25 |
||||
|
YGX26H |
1.07 |
1 |
820 |
677 |
≥1592 |
28 |
25 |
|||
|
10.7 |
10 |
10.3 |
8.5 |
≥20.0 |
28 |
25 |
||||
|
Magnetic Properties of Sintered SmCo Magnets |
||||||||||
|
Material |
Grade |
Br |
Hcb |
Hcj |
(BH) max |
TW |
||||
|
T |
KA/m |
KA/m |
KJ/m3 |
|||||||
|
KGs |
KOe |
KOe |
MGOe |
|||||||
|
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
℃ |
||
|
Sm2Co17 |
YGX28M |
1.1 |
1.04 |
796 |
318 |
955 |
398 |
239 |
207 |
|
|
11 |
10.4 |
10 |
4 |
12 |
5 |
30 |
26 |
|||
|
YGX28 |
1.1 |
1.04 |
820 |
677 |
≥1194 |
239 |
207 |
|||
|
11 |
10.4 |
10.3 |
8.5 |
≥15.0 |
30 |
26 |
||||
|
YGX28H |
1.1 |
1.04 |
820 |
677 |
≥1592 |
239 |
207 |
|||
|
11 |
10.4 |
10.3 |
8.5 |
≥20.0 |
30 |
26 |
||||
|
YGX30M |
1.12 |
1.07 |
796 |
318 |
955 |
398 |
247 |
223 |
||
|
11.2 |
10.7 |
10 |
4 |
12 |
5 |
31 |
28 |
|||
|
YGX30 |
1.12 |
1.07 |
820 |
677 |
≥1194 |
247 |
223 |
|||
|
11.2 |
10.7 |
10.3 |
8.5 |
≥15.0 |
31 |
28 |
||||
|
YGX32M |
1.15 |
1.09 |
796 |
318 |
955 |
398 |
31 |
28 |
||
|
11.5 |
10.9 |
10 |
4 |
12 |
5 |
32 |
29 |
|||
|
YGX32 |
1.15 |
1.09 |
820 |
677 |
≥955 |
262 |
238 |
|||
|
11.5 |
10.9 |
10.3 |
8.5 |
≥12.0 |
32 |
29 |
||||
|
Low Temp. Coeff Sm2Co17
|
YXG22LT |
1 |
0.93 |
756 |
677 |
≥1194 |
191 |
159 |
350 |
|
|
10 |
9.3 |
9.5 |
8.5 |
≥15.0 |
26 |
22 |
||||
|
YXG24LT |
1.04 |
0.96 |
756 |
677 |
≥1194 |
223 |
191 |
|||
|
10.4 |
9.6 |
9.5 |
8.5 |
≥15.0 |
26 |
22 |
||||
|
YXG26LT |
1.07 |
1 |
812 |
677 |
≥1433 |
223 |
191 |
|||
|
10.7 |
10 |
10.2 |
8.5 |
≥18.0 |
28 |
25 |
||||
|
Magnetic Properties of Sintered NdFeB Magnets |
|||||||||
|
Grade |
Remanence (Br) |
Coercive Force (HcB) |
Intrinsic Coercive Force （HcJ） |
Max.Energy Product (B-H) Max |
Max Operation Temp. ℃ |
||||
|
|
mT |
KG |
KA/m |
KOe |
KA/m |
KOe |
KJ/ m3 |
MGOe |
Tw ℃ |
|
N30 |
1080-1130 |
10.8-11.3 |
≥ 796 |
≥ 10 |
≥ 955 |
≥ 12 |
233-247 |
28-31 |
80 ℃ |
|
N33 |
1130-1170 |
11.3-11.7 |
≥ 836 |
≥ 10.5 |
≥ 955 |
≥ 12 |
247-271 |
31-34 |
80 ℃ |
|
N35 |
1170-1220 |
11.7-12.2 |
≥ 868 |
≥ 10.9 |
≥ 955 |
≥ 12 |
263-287 |
33-36 |
80 ℃ |
|
N38 |
1220-1250 |
12.2-12.5 |
≥ 899 |
≥ 11.3 |
≥ 955 |
≥ 12 |
287-310 |
36-39 |
80 ℃ |
|
N40 |
1250-1280 |
12.5-12.8 |
≥ 907 |
≥ 11.4 |
≥ 955 |
≥ 12 |
302-326 |
38-41 |
80 ℃ |
|
N42 |
1280-1320 |
12.8-13.2 |
≥ 915 |
≥ 11.5 |
≥ 955 |
≥ 12 |
318-342 |
40-43 |
80 ℃ |
|
N45 |
1320-1380 |
13.2-13.8 |
≥ 923 |
≥ 11.6 |
≥ 955 |
≥ 12 |
342-366 |
|
|
pplications
Examples of applications using SmCo
>Computer Hard Drive Magnets
>Microphones
>Headphones
>Dentures
>Loudspeakers
>Magnetic Pump Couplings
>Door Catches
>Magnetic Suspension
>Motors (e.g. washing machines, drills, food mixers, vacuum cleaners, hand dryers)
>Generators (e.g. Wind turbines, Wave Power, Turbo Generators, etc)
>Sensors
>Orthopaedics
>Halbach Arrays
>Jewellery
>Healthcare
>MRI and NMR
>Magnetic Separators
>TWT (Transverse Wave Tube)
>Magnetic Bearings
>Lifting Apparatus
>Limpet Pot Magnets
>Starter motors
>ABS systems
>Fans Eddy Current
>Brakes
>Alternators
>Meters
>Magnetic Clamps
>Magnetic Levitation
>Electro-acoustic pick-ups
>Switches
>Relays
>>Coatings of SmCo Magnets
|
Available Coatings |
||||
|
Surface |
Coating |
Thickness (Microns) |
Color |
Resistance |
|
Passivation |
|
1 |
Silver Grey |
Temporary Protection |
|
Nickel |
Ni+Ni |
10-20 |
Bright Silver |
Excellent Against Humidity |
|
Ni+Cu+Ni |
||||
|
Zinc |
Zn |
8-20 |
Bright Blue |
Good Against Salt Spray |
|
C-Zn |
||||
|
Tin |
Ni+Cu+Sn |
15-20 |
Shinny Color |
Excellent Against Humidity |
|
Gold |
Ni+Cu+Au |
10-20 |
Gold |
Superior Against Humidity |
|
Copper |
Ni+Cu |
10-20 |
Gold |
Temporary Protection |
|
Epoxy |
Epoxy |
15-25 |
Black, Red, Grey |
Excellent Against Humidity& Salt Spray |
|
Ni+Cu+Epoxy |
||||
|
Zn+Epoxy |
||||
|
Chemical |
Ni |
10-20 |
Silver Grey |
Excellent Against Humidity |
|
Parylene |
Parylene |
5-20 |
Grey |
Excellent Against Humidity, Salt Spray, Superior Against Solvents, Gases, Fungi and Bacteria, FDA Approved |
NiCuNI: The Nickel-Copper-Nickel(Ni-Cu-Ni) coating has excellent physical and chemical properties, like corrosion resistance, hardness, abrasive resistance
Au： Excellent resistance to high temperature, corrosion and colour changing
Ag： Enhanced corrosion resistance, increasing the conductivity
Epxoy： Epoxy resin has good physical and chemical properties, and has excellent adhesion strength on the surface of the metal and nonmetal materials, good dielectric properties
Zn： Blue white zinc coating is generally thinner than the Ni-Cu-Ni coating and anticorrosion ability is relatively good. Blue white zinc coating after