Alnico

AlNiCo magnet is mainly produced from complex alloys of Aluminum, Nickel and Cobalt. It has excellent temperature stability (up to 500 degrees Centigrade), low Br. Temp coefficient, good resistance to demagnetization, high residual density and magnetic stability.

There are two types of manufacturing processes for AlNiCo, cast AlNiCo and sintered AlNiCo. Sintered AlNiCo has slight lower magnetic properties, but better mechanical strength than cast AlNiCo. Because of this it is easier to process small and irregular shaped products with sintered AlNiCo, while cast AlNiCo permits higher temperature operation (up to 500 degrees Centigrade).

Alnico magnets suffer small changes in its properties under high temperatures. They have low coercivity, meaning that they are easily demagnetized and have very good corrosion resistance, therefore, no special surface treatments are required for Alnico magnets.