Samarium Cobalt Magnets (SmCo Magnet)
Product Description
Samarium-Cobalt magnets (SmCo) have the best Br temperature coefficient (-0,035%/℃) granting the absolute higher available induction above 150℃ working temperature. Despite a higher cost than other magnetic materials, SmCo provides an outstanding combination of high energy, thermal stability, and corrosion resistance. Protective coatings are generally not required except for particular applications. But SmCo is very crisp and fragile: if you drop it, it will break.
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Magnetic Property Parameters of SmCo5 and Sm2Co17 |
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|
Grade |
Br |
Hcb |
Hcj |
(BH)max |
Curie Temp. |
Working Temp. |
Temp. Coefficient |
|
|
SmCo5 |
ZR16 |
7.7-8.6 |
7.3-8.3 |
20 |
15-18 |
750 |
250 |
-0.04 |
|
ZR18 |
8.1-9 |
7.6-8.7 |
20 |
16-20 |
750 |
250 |
-0.04 |
|
|
ZR20 |
8.5-9.2 |
8-8.9 |
20 |
18-21 |
750 |
250 |
-0.04 |
|
|
ZR22 |
9-9.6 |
8.5-9.3 |
20 |
20-13 |
750 |
250 |
-0.04 |
|
|
ZR24 |
9.5-10 |
9-9.7 |
20 |
22-25 |
750 |
250 |
-0.04 |
|
|
Sm2Co17 |
ZRT18 |
8.1-9 |
7.6-8.7 |
20 |
16-20 |
820 |
350 |
-0.01 |
|
ZRT22 |
9-9.5 |
8.5-9.3 |
20 |
20-23 |
820 |
350 |
-0.015 |
|
|
Sm2Co17 |
ZR24L |
9.5-10 |
5.5-10.3 |
6.5-18 |
22-25 |
820 |
350 |
-0.035 |
|
ZR24M |
9.5-10 |
8-9.8 |
25 |
22-25 |
820 |
350 |
-0.035 |
|
|
ZR24H |
9.5-10 |
8.6-9.8 |
25 |
22-25 |
820 |
350 |
-0.035 |
|
|
ZR26L |
10-10.5 |
5.5-10.3 |
6.5-18 |
24-27 |
820 |
350 |
-0.035 |
|
|
ZR26M |
10-10.5 |
8-10.3 |
18-25 |
24-27 |
820 |
350 |
-0.035 |
|
|
ZR26H |
10-10.5 |
9.1-10.3 |
25 |
24-27 |
820 |
350 |
-0.035 |
|
|
ZR28L |
10.4-10.8 |
5.5-10.6 |
6.5-18 |
26-29 |
820 |
350 |
-0.035 |
|
|
ZR28M |
10.4-10.8 |
8-10.6 |
18-25 |
26-29 |
820 |
350 |
-0.035 |
|
|
ZR28H |
10.4-10.8 |
9.5-10.6 |
25 |
26-29 |
820 |
350 |
-0.035 |
|
|
ZR30L |
10.8-11.2 |
5.5-11 |
6.5-18 |
28-30 |
820 |
350 |
-0.035 |
|
|
ZR30M |
10.8-11.2 |
8-11 |
18-25 |
28-30 |
820 |
350 |
-0.035 |
|
|
ZR30H |
10.8-11.2 |
9.8-11 |
25 |
28-30 |
820 |
350 |
-0.035 |
|
|
ZR32L |
11.2-11.4 |
5.5-11.2 |
6.5-18 |
29.5-31 |
820 |
350 |
-0.035 |
|
|
ZR32M |
11.2-11.4 |
8-11.2 |
18-25 |
29.5-31 |
820 |
350 |
-0.035 |
|
|
ZR32H |
11.2-11.4 |
10.2-11.2 |
25 |
29.5-31 |
820 |
350 |
-0.035 |
|
|
ZR33L |
11.4-11.6 |
5.5-11.4 |
6.5-18 |
31-33 |
820 |
350 |
-0.035 |
|
|
ZR33M |
11.4-11.6 |
8-11.4 |
18-25 |
31-33 |
820 |
350 |
-0.035 |
|
|
ZR33H |
11.4-11.6 |
10.4-11.4 |
25 |
31-33 |
820 |
350 |
-0.035 |
|
