Home               equipment Quality Control             Contact

Ferrite Magnet

Ferrite Core

Flexible Rubber Magnet

NdFeB Magnet

Alnico Magnet

Bonded Injection

Magnetic Toy

Magnetic Separtor

Specialized casting techniques are used to achieve the unique crystalline grain orientation found in the Alnico 5 and 8 grades. These anisotropic grades are designed to produce high magnetic output in a specified direction. Orientation is achieved during heat treatment, by cooling the casting from 2000?F at a controlled rate within a magnetic field which conforms to the preferred direction of magnetization. Alnico 5 and Alnico 8 are anisotropic and exhibit a preferred direction of orientation.

Magnetic orientation should be specified on your drawing when you send an order to us. Cast Alnico 5 is the most commonly used of all the cast Alnicos. It combines high inductions with a high energy product of 5 MGOe or more and is used extensively in rotating machinery, communications, meters and instruments, sensing devices and
holding applications. The higher resistance to demagnetization (coercive force) of Alnico 8, cobalt content to 35%, allows this material to function well for short lengths or for length to diameter ratios of less than 2 to 1.

Sintered Alnico materials offer slightly lower magnetic properties but better mechanical characteristics than the cast Alnico materials. Sintered Alnico magnets are most suitable in small sizes (less than 1 oz.). In this process, the desired mix of metal powders is pressed to shape and size in a die, then sintered at 2300?F in a hydrogen atmosphere. The sintering process is well suited to large volume production, and results in parts which are structurally stronger than cast magnets. Relatively close tolerances can be achieved without grinding.

Typical Magnetic Performance for Cast Alnico

Grade

Br

Hc

(BH)max

Curie Temp

Work Temp

US standard

mT

Gs

KA/m

Oe

KJ/m3

MGOe

C

C

MMPA
Equivalent

*LN9

680

6800

30

380

9.0

1.13

810

450

Alnico 3

*LN10

650

6500

42

530

10.0

1.20

810

450

Alnico 3

*LNG12

720

7200

45

500

12.4

1.55

810

450

Alnico 2

*LNG13

700

7000

50

620

13.0

1.60

810

450

Alnico 2

LNG16

800

8000

53

660

16.0

2.00

850

450

Alnico 4

LNG34

1180

11800

44

550

35.0

4.30

860

525

Alnico 5C

LNG37

1200

12000

48

600

37.0

4.65

860

525

Alnico 5

LNG40

1250

12500

48

600

40.0

5.00

860

525

LNG44

1250

12500

52

650

44.0

5.50

860

525

LNG52

1300

13000

56

700

52.0

6.50

860

525

Alnico 5 DG

LNG60

1350

13500

59

740

60.0

7.50

860

525

Alnico 5~7

*LNGT18

580

5800

100

1250

18.0

2.20

860

550

Alnico 8

LNGT28

1000

10000

58

720

28.0

3.50

860

525

Alnico 6

LNGT32

800

8000

100

1250

32.0

4.00

860

550

Alnico 8

LNGT38

820

8200

110

1380

38.0

4.75

860

550

LNGT44

880

8800

120

1500

44.0

5.50

860

550

LNGT60

900

9000

110

1380

60.0

7.50

860

550

LNGT72

1050

10500

112

1400

72.0

9.00

860

550

Alnico 9

LNGT36J

700

7000

140

1750

36.0

4.50

860

550

Alnico 8 HC

Typical Magnetic Performance for Sintered Alnico

Grade

Br

Hc

(BH)max

D

Curie Temp

US standard

mT

Gs

KA/m

Oe

KJ/m3

MGOe

g/cm3

C

MMPA
Equivalent

Min
Max

Min
Max

Min
Max

*FLN8

520
580

5.2
5.8

43
47

540
590

8
10

1.00
1.25

6.8

760

Alnico 3

*FLNG12

700
780

7.0
7.8

40
50

540
650

12
14

1.50
1.75

7.0

810

Alnico 2

*FLNGT14

570
630

5.7
6.3

76
86

980
1100

14
16

1.75
2.00

7.1

850

Alnico 8

*FLNGT18

560
620

5.6
6.2

88
100

1130
1280

18
22

2.25
2.75

7.2

850

Alnico 8

FLNG28

1050
1100

10.5
11.0

46
50

590
640

28
33

3.50
4.15

7.2

850

Alnico 5

FLNG34

1100
1180

11.0
11.8

50
54

640
690

34
38

4.30
4.80

7.2

890

Alnico 5

FLNGT28

1000
1050

10
10.5

56
61

710
770

28
30

3.50
3.80

7.2

850

Alnico 6

FLNGT31

780
830

7.8
8.3

104
115

1130
1480

31
36

3.90
4.50

7.2

850

Alnico6

FLNGT33

650
680

6.5
6.8

136
143

1880
2000

33
36

4.15
4.50

7.2

850

Alnico8

FLNGT38

800
850

8.0
8.5

123
129

1580
1660

38
42

4.75
5.30

7.2

850

Alnico 8

FLNGT42

880
920

8.8
9.2

120
131

1530
1680

42
48

5.30
6.00

7.2

850

Alnico 8

 


 

       
Tel: + 86 (0)551 6115520 6115519
Fax: + 86 (0)551 6115521
Email: safecaremag@vip.163.com 

Address: 1611,1615,LiHao Business Center,BeierHuan RD., Xin zhan Area, Hefei, China PC230041
@Copy Right - SAFECARE GROUP., All Right Reserved.