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Magnetic Properies of SmCo Magnet
Smco Magnet Smco Magnet
Grade

Br

Hcb

Hci

BHmax

kGs

mT

kOe

kA/m

kOe

kA/m

MGOe

kJ/m3

Sm 2 Co 17

SG - 22D

9.2 - 10.2

920 - 1020

≥ 5.0

≥ 398

6.0 - 10.0

477 - 796

22 ± 2

175 ± 16

SG - 26D

10.0 - 10.8

1000 - 1080

≥ 5.0

≥ 398

6.0 - 10.0

477 - 796

26 ± 2

206 ± 16

SG - 30D

10.6 - 11.6

1060 - 1160

≥ 5.0

≥ 398

6.0 - 10.0

477 - 796

30 ± 2

238 ± 16

SG - 32D

11.0 - 11.8

1100 - 1180

≥ 5.0

≥ 398

6.0 - 10.0

477 - 796

32 ± 2

254 ± 16

SG - 26

10.0 - 10.8

1000 - 1080

≥ 9.2

≥ 732

18.0 - 25.0

1432 - 1990

26 ± 2

206 ± 16

SG - 28

10.2 - 11.2

1020 - 1120

≥ 9.5

≥ 756

18.0 - 25.0

1432 - 1990

28 ± 2

222 ± 16

SG — 30

10.6 - 11.6

1060 - 1160

≥ 10.0

≥ 796

18.0 - 25.0

1432 - 1990

30 ± 2

238 ± 16

SG - 26G

10.0 - 10.8

1000 - 1080

≥ 9.2

≥ 732

25.0 - 35.0

1990 - 2786

26 ± 2

206 ± 16

SG - 28G

10.2 - 11.2

1020 - 1120

≥ 9.5

≥ 756

25.0 - 35.0

1990 - 2786

28 ± 2

222 ± 16

SG - 30G

10.6 - 11.6

1060 - 1160

≥ 10.0

≥ 796

25.0 - 35.0

1990 - 2786

30 ± 2

238 ± 16

SmCo 5

SG - 18

8.0 - 9.0

800 - 900

≥ 7.2

≥ 573

≥ 20.0

≥ 1592

18 ± 2

143 ± 16

SG - 20

8.5 - 9.5

850 - 950

≥ 8.2

≥ 652

≥ 18.0

≥ 1432

20 ± 2

159 ± 16

SG - 22

9.0 - 10.0

900 - 1000

≥ 8.7

≥ 692

≥ 18.0

≥ 1432

22 ± 2

175 ± 16

Physical Properties of SmCo Magnet

Characteristics

SG - 22D
SG - 26D
SG - 30D
SG - 32D

SG - 26
SG - 28
SG - 30

SG - 26G
SG - 28G
SG - 30G

kA/m

Curie Temp.Tc

800 - 850

800 - 850

800 - 850

800 - 820

Cperationg Temp

250

300

350

350

Density ρ

g/cm 3

8.3 - 8.5

8.3 - 8.5

8.3 - 8.5

5.1 - 8.3

Temp. Coefficient

(0-100 ℃ ) α Br

%/ ℃ ( ∥ )

- 0.02

- 0.02

- 0.02

- 0.04

%/ ℃ ( ⊥ )

- 0.03

- 0.03

- 0.03

- 0.05

Recoil Permeability μ rec
f

1.0 - 1.05

1.0 - 1.05

1.0 - 1.05

1.0 - 1.05

Vickers herdness

Hv

550 - 600

550 - 600

550 - 600

550 - 600

Yong ' s modulus

kN/mm 2

150

150

150

150

Spec Electr resistane

Ω mm 2 /m

0.75 - 0.85

0.75 - 0.85

0.75 - 0.85

0.75 - 0.85

   
 
 
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