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Block Alnico Magnet Alnico 5 or Alnico 8 For Industry Used

1. Material: Block Alnico Magnet

2. Shape: Block / Rectangle

3. Dimensions: As required / Customized

4. Grade: Alnico 5,Alnico 8,Alnico 9 and etc.

Click here to check the grade of alnico magnet

5. Coating: Without coating or Polishing process

6. Magnetized: Through thickness,width,length

7. Max working Temp.: 450 ℃-550 ℃
8. Tolerance: +/-0.05mm or +/-0.1mm

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  • Product Detail
  • Technical Specifications
According to different production processes,alnico magnet is divided into cast alnico magnet and sintered alnico magnet.Compared to the cast alnico magnet,the sintered alnico magnet is limited to a small size,and the resulting blank materials has a dimensional tolerance that is better than that of the cast alnico magnet,and the magnetic properties are slightly lower than the cast alnico magnet,but processability is better.

The shape of the alnico magnet is mostly round and square,but irregular shapes can be customized on request.
The casting process (cast alnico magnet) can be processed into different sizes and shapes.

In permanent magnet material,cast alnico magnets have the lowest reversible temperature coefficient and can operate at temperatures up to 550 ℃.


Application of alnico magnet
1. Quick Die Change System
2. Electric motors
3. Electric guitar pickups
4. Microphones
5. Sensors
6. Speakers
7. Traveling wave tubes
8. Animal husbandry
9. Teaching equipments

Characteristics of alnico magnet
1. Crystal density,high strength
2. Stong corrosion resistance
3. Uniform composition,excellent magnetic properities
4. Good temperature stability
5. Maximum working temperature up to 550 ℃


Magnetization orientation of block alnico magnet
Most of block alnico magnet are magnetized through thickness.But there are some application scenarios that require magnetization of its length or width direction.If you have special requirements for magnetization,please do not hesitate to let us know.




Magnetized Through Thickness Magnetized Through Width Magnetized Through Length

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Magnetic Properties Of Cast Alnico Magnet
Grade MMPA
Equivalent
Class 		 Remanence
(Br) 		Coercive Force (Hcb) Maximum Energy Products
(BH)max 		Curie Temp.
Tc. 		Max
Working Temp.
Tw. 		Reversible Temp. Coefficient
a(Br)
T kGs KA/m kOe Kj/m³ MGO [°C] [°C] [%°C]
Isotropic *LN9 Alnico3 0.69 6.9 37 0.47 9 1.13 810 450 -0.03
*LN10 0.6 6 40 0.5 10 1.25 -0.03
*LNG12 Alnico2 0.72 7.2 44 0.55 12 1.5 -0.03
*LNG13 0.7 7 48 0.6 13 1.63 -0.03
*LNGT18 Alnico7 0.58 5.8 90 1.13 18 2.2 860 550 -0.03
Anisotropic LNG37 Alnico5 1.2 12 48 0.6 37 4.65 850 525 -0.02
LNG40 1.25 12.5 48 0.6 40 5 -0.02
LNG44 1.25 12.5 52 0.65 44 5.5 -0.02
LNG48 Alnico5DG 1.25 12.5 52 0.65 48 6 -0.02
LNG52 1.3 13 56 0.7 52 6.5 -0.02
LNG60 Alnico5～7 1.35 13.5 56 0.7 60 7.5 -0.02
LNGT28 Alnico6 1.05 10.5 56 0.7 28 3.5 -0.02
LNGT32 Alnico8 0.8 8 100 1.25 32 4.25 860 550 -0.03
LNGT38 0.82 8.2 110 1.38 38 4.75 -0.03
LNGT44 0.88 8.8 120 1.5 44 5.5 -0.03
LNGT48 0.9 9 120 1.5 48 6 -0.03
LNGT36J Alnico8HC 1.1 11 120 1.5 88 11 -0.03
LNGT60 Alnico9 0.9 9 110 1.38 60 7.5 -0.03
LNGT72 1.05 10.5 112 1.41 72 9 -0.03
LNGT88 1.1 11 120 1.5 88 11 -0.03
LNGT92 1.1 11 120 1.5 82 10.25 -0.03

Magnetic Properties Of Sintered Alnico Magnet

Grade 		MMPA
Equivalent
Class 		 Remanence
(Br) 		Coercive Force (Hcb) Maximum Energy Products
(BH)max 		Curie Temp.
Tc. 		Max Working Temp.
Tw. 		Reversible Temp. Coefficient
a(Br)
T kGs KA/m kOe Kj/m³ MGO [°C] [°C] [%°C]
Isotropic *FLN10 S-Alnico3 0.65 6.5 52 0.65 10 1.25 750 450 -0.03
*FLNG12 S-Alnico2 0.72 7.2 52 0.65 12 1.5 -0.03
*LNGT18 S-Alnico7 0.6 6 92 1.15 18 2.25 860 550 -0.03
Anisotropic FLNG35 S-Alnico5 1.15 11.5 52 0.65 35 4.4 850 510 -0.02
FLNGT28 S-Alnico6 1.05 10.5 60 0.75 28 3.5 860 550 -0.02
FLNGT40 S-Alnico8 0.88 8.8 120 1.5 40 5 -0.02
FLNGT42 1 10 105 1.3 42 5.25 -0.02
FLNGT44 0.92 9.2 120 1.5 44 5.5 -0.02
FLNGT48 0.95 9.5 128 1.6 49.5 6.2 -0.02
FLNGT36J S-Alnico8HC 0.75 7.5 140 1.75 36 4.5 -0.02

Mechanical Physical Properties Of Cast Alnico Magnet
Curie Temperature 760-890℃
Max. Operating Temperature 450-550℃
Resistivity 47-54μOhm.cm
Vickers Hardness 520-630Hv
Density 6.9-7.3g/cm³
Relative Recoil Permeability 1.7-4.7μrec
Saturation Field Strength 2.7-6.3kOe/215-500kA/m
Temperature Coefficient of Remanence (Br) -0.025~-0.02%/℃
Temperature Coefficient of Remanence (Hcj) +0.01~0.03%/℃ 

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