Aluminum nickel cobalt magnets are not used in the market much, so in the past article did not introduce, recently some customers asked, so today to introduce the magnetic properties of aluminum nickel cobalt parameters, as well as the composition ratio.

The following is the magnetic energy parameter table of aluminum nickel-cobalt alloy magnet 1 2 3 4 5 6 8 9, containing the percentage of components;

Alnico 5 (LNG44) = Alcomax 3 = Alnico 500 = LNG44

Alnico 6 (LNG28) = Alcomax 4 = Alnico 400 = LNG28

Alnico 8 (LNGT40) = Hycomax 2 = Alnico 8H = LNGT40

Aluminum-nickel-cobalt permanent magnets are made of an alloy of primarily iron, aluminum, nickel and cobalt, but may also contain small amounts of other elements (such as copper and titanium). Aluminum-nickel-cobalt grades vary depending on the cobalt content, ranging from 0 (Alnico 3) to 40% (Alnico 8). The lower aluminum-nickel-cobalt grades (2, 3, and 4) are unoriented magnet grades whose magnetic properties are homogeneous and identical in all directions. The magnetic output of this grade is relatively low. Anisotropic grades (ALNICO 5, 6, 8, and 9) are designed to produce a high magnetic output in a specified direction.

The Alnico 5 grade, which is widely used at present, can provide energy for the magnetic circuit at a cost that is better than any other aluminum-nickel-cobalt grade. Alnico 8 has the highest coercivity of all AlNICO grades, as well as excellent energy per unit volume and low reversible temperature coefficient, and is recommended for applications where it is exposed to strong demagoguing fields or where short field lengths are required.

Click on the data download to view more permanent magnet grade data, inspection and certification report.

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