Alnico Block Magnet

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Alnico Block Magnet

Material Grade:

In case of a quotation request please tell us the dimensions the magnets needed. Please write... more
Alnico Block Magnet

In case of a quotation request please tell us the dimensions the magnets needed. Please write the dimensions according to the following scheme:

[length] x ID [width] x [height] 

Please keep in mind that in standard the magnetization direction is the height.

General Information

Alnico magnet material is an alloy of aluminum -nickel-cobalt with minor amounts of other elements such as titanium and copper. Alnico magnets are characterized by excellent temperature stability over a wide temperature range and high residual induction. They are a candidate for continuous duty applications where temperature extreme up to 500°C can be expected. However, the coercive force and maximum energy product are not high. They limit their applications in many cases. Casting and sintering are two major processes used to manufacture the Alnico magnets. Alnico magnets with complex shapes may be manufactured by casting.

Material Information

  • Production by casting or powder metallurgical techniques An alloy composed of a matrix of Al-Ni-Fe-Co
  • Excellent stability over a wide temperature range higher than 500°C
  • Strong corrosion resistance capability without coating for surface protection
  • Good resistance to demagnetization from vibration and shock
  • Good flux density at a reasonable cost
  • Very hard & brittle
Coating: none
Form: Block
Magnetization Direction: through height
Material: Casted Alnico, Sintered Alnico
Material Grade: FLN8 , FLNG12, FLNGT14 , FLNGT18 , FLNG28 , FLNG34 , FLNGT28, FLNGT31, FLNGT38 , FLNGT42 , Alnico 3-LN9 , Alnico 3-LN10 , Alnico 2-LNG12 , Alnico 2-LNG13, Alnico 5-LNG37 , Alnico 5-LNG40 , Alnico 5-LNG44, Alnico 5DG-LNG52, Alnico 5-7-LNG60, Alnico 6-LNGT28 , Alnico 8HC-LNGT36J , Alnico 8-LNGT18, Alnico 8-LNGT32 , Alnico 8-LNGT40, Alnico 9-LNGT60 , Alnico 9-LNGT75
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
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