Description
Aluminum Nickel Cobalt (Alnico) magnets are mainly made from aluminum, nickel, cobalt, copper, iron and sometimes titanium. The low coercive force limits their application in many cases. Alnico magnets have two different manufacturing processes: casting and sintering.
Model No. NS20151453453391518
Flowchart Characteristics Properties
Grade
MMPA Equivalent
Br
Hcb
Hcj
(BH)max
Remark
mT
Gs
kA/m
Oe
kA/m
Oe
kJ/m3
MGOe
LN10
Alnico3
600
6000
40
500
43
540
10
1.20
Isotropic
LNG13
Alnico2
680
6800
48
600
51
640
13
1.60
LNGT18
Alnico8
580
5800
90
1130
92
1160
18
2.20
LNG37
Alnico5
1200
12000
48
600
49
610
37
4.65
Anisotropic
LNG40
1250
12500
48
600
49
610
40
5.00
LNG44
1250
12500
52
650
53
660
44
5.50
LNG52
Alnico5DG
1300
13000
56
700
57
710
52
6.50
LNG60
Alnico5-7
1350
13500
59
740
60
750
60
7.50
LNGT28
Alnico6
1000
10000
58
720
59
740
28
3.50
LNGT36J
Alnico8HC
700
7000
140
1750
148
1850
36
4.50
LNGT38
Alnico8
800
8000
110
1380
112
1400
38
4.75
LNGT44
880
8800
120
1500
122
1530
44
5.50
LNGT60
Alnico9
900
9000
110
1380
112
1400
60
7.50
LNGT72
1050
10500
112
1400
114
1430
72
9.00
Curie Temperature (°C) 860 Maximum Operating Temperature (°C) 525-550 Resistivity (μ ohm.cm) 47-54 Hardness (Hv) 520-630 Density (g/cm3) 6.90-7.30 Relative Recoil Permeability (μrec) 1.70-4.70 Saturation Field Strength, kOe (kA/m) 2.7-6.3 (215-500) Temperature Coefficient of Br (%/°C) -0.025 ~ -0.02 Temperature Coefficient of iHc (%/°C) +0.01 ~ +0.03
