Casting AlNiCo

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Alnico magnets exhibit excellent temperature stability, high residual induction, and relatively high energies. Alnico is composed primarily of alloys of Aluminum, Nickel, and Cobalt.  Cast AlNiCo magnets may be manufactured in complex shapes, such as horseshoes, not possible with other magnet materials. The most commonly used cast Alnico magnet is Cast Alnico 5. 

Alnico has a low coercive force, and is easily demagnetized if not handled with care. For optimum performance of Alnico 5, the magnetic length should be approximately 5 times the pole diameter or equivalent diameter. 



Application field
The AlNiCo magnet application newly developed hall-effect and MR-based automotive electronic sensors. The traditional applications include magneto, TWT amplifiers, actuators, and instrument.

Magnetic Properties 

Grade

Remanence(Br)

Coercivity Force(Hcb)

Max. Energy Product(BHmax)

Maximum Operating Temp.

US Standard

IEC Standard

mT

kGs

kA/m

kOe

kJ/m3

MGOe

*LN10

650

6.5

42

0.53 

10

1.2

450 

Alnico 3

Alnico 9/3

*LNG11

720

7.2

37

0.48 

11.2

1.4

450 

Alnico 1

Alnico 8/4

*LNG13

700

7

50

0.62 

13

1.6

450 

Alnico 2

Alnico 12/6

LNG16

800

8

53

0.66 

16

2

525 

[Alnico 4]

/

LNG34

1180

11.8

44

0.55 

35

4.3

525 

[Alnico5C]

/

LNG37

1180

11.8

48

0.60 

37

4.65

525 

[Alnico5C]

Alnico 37/5

LNG40

1220

12.2

48

0.60 

40

5

525 

Alnico 5

/

LNG44

1220

12.2

52

0.65 

44

5.5

525 

Alnico 5

Alnico 44/5

LNG52

1250

12.5

55

0.69 

52

6.5

525 

Alnico5DG

Alnico 52/6

LNG60

1300

13

56

0.70 

60

7.5

525 

Alnico 5~7

/

LNGT18

580

5.8

90

1.13 

18

2.26

550 

[Alnico 8]

Alnico 17/9

LNGT28

1050

10.5

56

0.70 

28

3.5

550 

Alnico 6

Alnico 26/6

LNGT32

800

8

104

1.30 

34

4.25

550 

Alnico 8

Alnico 38/11

LNGT38

820

8.2

110

1.38 

38

4.75

550 

Alnico 8

Alnico 38/11

LNGT44

880

8.8

120

1.50 

44

5.5

550 

Alnico 8

/

LNGT60

900

9

110

1.38 

60

7.5

550 

Alnico 8

Alnico 60/11

LNGT72

1050

10.5

112

1.41 

72

9

550 

Alnico 9

/

LNGT36J

700

7

140

1.75 

36

4.5

550 

Alnico8HC

Alnico 36/15

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