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U Shape Alnico Magnet

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U Shape Alnico Magnet U Shape Alnico Magnet U Shape Alnico Magnet U Shape Alnico Magnet U Shape Alnico Magnet U Shape Alnico Magnet U Shape Alnico Magnet

U Shape Alnico Magnet

Magnet type: intered or Cast Alnico Magnet U Shape

Material Grade: Alnico 5,8 is normally used

Working Temperature: 50~550°C

Surface Treatment: ncoated

Magnetization Direction: xial,Diametrial,Multi-Poles

Customization: cceptable

  • Product Details

Alnico Magnet

These magnets are based mainly on iron (Fe), aluminum (Al), nickel (Ni) and cobalt (Co). The magnets are fragile 
and not ductile. Therefore, after the raw metal is melted at high temperature and turned into an alloy, it is cast into a
casting mold. These magnets are therefore also known as cast magnets.Al-Ni-Co magnets achieve high Br values and 
high temperature stability, readily cause low-temperature demagnetization and thermal demagnetization, achieve 
high mechanical strength, and offer other advantages. However, these magnets have low magnetic coercive force
and readily undergo demagnetization due to an external magnetic field, are unsuited for thin products, and placed 
under other constraints. In the design process, it is therefore important to select a method of magnetization 
that allows for sufficient shape and magnetic characteristics, and a method of assembly in
which consideration is given to demagnetization.

Produced by casting or sintering powder metallurgical technique with alloy composite of Al-Ni-Fe-Co

Alnico is a very hard and brittle material and does not lend itself to conventional machining. 
UNMAG have experienced machinists and the proper equipment to grind alnico to its required dimensions.

Characteristic of Both Cast and Sintered Alnico magnet
Very temperature stable, great for high heat applications
Maximum working temperature 450-550°C
Does not lend itself to conventional machining (hard and brittle)
High residual induction and energy product compared to ceramic material
Low coercive force compared to ceramic and rare earth materials (more subject to demagnetization)
Most common grades of alnico are 5 and 8
Not suited for repelling or high friction applications



Parameter Name Value
Cruie Temperature 760 ~ 890℃
Max. Operatin Temperature 450 ~ 550℃
Resistivity 47 ~ 54 μ Ω.cm
Hardness 520 ~ 630 HV
Density 6.9 ~ 7.3 g/cm³
Relative Recoil Permeablility 1.7 ~ 4.7 μrec
Saturation Field Strength 2.7 ~ 6.3 kOe / 215~500 kA/m
Temperature Coefficient of Br -0.025 ~ -0.02%/℃
Temperature Coefficient of iHc +0.01 ~ +0.03 %/℃

Mixing
Melting
Casting
Coarse processing
Heat treatment
Finish processing
Magnetization



Applications of Alnico Magnets - Separators, sensors, electron tubes, traveling wave tubes, radar, holding magnets, 

coin acceptors, clutches and bearings, auto ignition magnetos, motors, distributors, relays,controls, generators, 

receivers, telephones, bell ringers,microphones, guitar pickups, loudspeakers, security systems, cow magnets.


Regarding of magnetic properties of Alnico Magnet, Please click here.

For your different application,different grade/series for your choice.


For more details,welcome to contact with our sales engineers.                                             
Hot Tags : Alnico 2 Magnets Magnes Alnico Alnico Magneti Alnico 3 Magnets
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