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High density Alnico 5 Cast Alnico Magnet Used In Holding Magnets
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High density Alnico 5 Cast Alnico Magnet Used In Holding Magnets

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High density Alnico 5 Cast Alnico Magnet Used In Holding Magnets

 

Quick Detail:

1. Density - 7.3 g/cm3

2. Manufacturing process - casting (most common)

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

4. Saturation magnetizing field required - about 5kOe.

 

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

*LN9

6.8(680)

380 (30)

1.13 (9.0)

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Ms. Joanna Wu (manager)
Tel: 86-571-82837863
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Contact Method
Hangzhou Xiaoshan ZhiJiang Magnet Co.,Ltd
73021 State Farm, Ningwei town, Xiaoshan District, Hangzhou, Zhejiang, China (Mainland) / 311215
Fax: 86-571-82871538
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