Alnico Magnet for Guitar Pickups

Alnico magnets are a group of permanent magnets composed mainly of aluminum (Al), nickel (Ni), and cobalt (Co), with iron (Fe) as a base metal. In addition to these primary elements, small amounts of other materials such as copper (Cu) and titanium (Ti) are often added to further enhance their magnetic properties. Alnico magnets stand out for their high temperature stability, maintaining approximately 85% of room-temperature magnetization up to 1,000°F. They offer strong residual induction, high energy products, and natural corrosion resistance, eliminating the need for surface treatments (though plating is an option). Alnico magnets can be manufactured through casting or sintering. While sintered alnico magnets are slightly less powerful than cast versions, they offer better mechanical properties. The sintering process is ideal for high-volume production, producing structurally stronger parts than cast magnets and achieving relatively close tolerances without the need for grinding.   ∇ Highly resistant to extreme temperatures, with operating temps exceeding 1000°F ∇ Lower coercive strength, easily demagnetized ∇ Strong corrosion resistance: Less susceptible to oxidation than other magnets ∇ Available in both cast and sintered forms