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Ring Shape High Powered Cast Alnico 8 Magnet For Loudspeakers
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Ring Shape High Powered Cast Alnico 8 Magnet For Loudspeakers

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Ring Shape High Powered Alnico 8 Magnet For Loudspeakers

 

Quick Detail:

 

1. Various shapes- blocks, bars, discs, rings, horseshoes, cylinders, etc.

2. Manufacturing process - casting (most common)

3. Density - 7.3 g/cm3

4. Ground Surface

 

Cast Alnico magnet is composed primarily of Aluminum, Nickel, Cobalt, Copper and Iron. It has very 

good corrosion resistance and high temperature operation.

Although other magnetic materials offer greater energy and coercivity values, the high remanence

 and thermal stability of AlNiCo makes it the most effective magnetic material for certain applications, 

like generator, microphone, lifting, voltmeter and measuring instruments. It is widely applied in high 

stability fields like aerospace, military, automobile and security systems.

 

Physical Properties of Cast Alnico

Curie Temperature ()

760-890

Max. Operating Temperature ()

450-550

Resistivity (μohm.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 (%/)

-0.025 ~ -0.02

Temperature Coefficient of iHc (%/)

+0.01 ~ +0.03

 

Applications:

 

Holding  magnets    

Sensors and transformers

Security  systems 

Relays 

Chucks

Instrumentations

Magnetic switches

Safety Controls

Motors and Generators

Receivers

Telephones

Microphones

Bell ringers

Loudspeakers

 

Performance of Cast AlNiCo Magnets

Grade

Br
KGs (Mt)

Hcj
Oe (KA/m)

Bhmax
MGOe(KJ/m3)

D
g/cm3

MMPA
Class

α %/°C
Br (Hcj)

TC.
°C

TW. 
°C

*LNGT18

5.8(580)

1250 (100)

2.20 (18.0)

7.3

Alnico8

-0.02(+0.03)

860

550

LNGT32

8.0(800)

1250 (100)

4.00 (32.0)

7.3

Alnico8

-0.02(+0.03)

860

550

LNGT40

8.0(800)

1380 (110)

5.00 (40.0)

7.3

Alnico8

-0.02(+0.03)

860

550

LNGT60

9.0(900)

1380 (110)

7.50 (60.0)

7.3

Alnico9

-0.02(+0.03)

860

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Mr. Jiang
Tel: 86-755-27214693
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China Magnets Products Online Market
NO.898,North Zhongxing Road, Shenzhen, Guangdong, China (Mainland)
Related Keyword(s): Cast Alnico Magnet Alnico Ring Magnet Cast AlNICO AlNiCo Magnet Shape Magnet View all Ring Shape Sintered Alnico Magnet Alnico Permanent Magnet Alnico Rare Earth Magnet Alnico Magnet Pot View less
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