Beside Cast AlNiCo magnets, the AlNiCo magnets also have Sintered Alnico magents, this materials offer slightly lower magnetic properties but better mechanical characteristics than the cast Alnico materials. Sintered Alnico magnets are most suitable in small sizes(less than 1 oz.)in this process. The desired mix of metal powder is pressed to shape and size in a die, then sintered at 2300 F in a hydrogen atmosphere. The sintering process is well suited to large volume production, and results in parts which are structurally stronger than cast magnets. Relatively close tolerances can be achieved without grinding. alnico magnet, alnico magnets.

Magnetic Performance Range for Sintered Alnico: