Main grades: Alnico 2, 3, 4, 5, 8
Alnico 2 traces back to days of the 1950 telecasters, this class seems to work well for middle-position pickups. It is known by its sweet, vintage tone, and there seem to be little disadvantages to using it.
Alnico 3 is the weakest of the three grades. It contains less cobalt, a core ingredient in the rest of the Alnico family. Because of the decrease in magnetic pull, it works wonders for neck pickups, where there is the most string vibration.
Alnico 5 is the strongest of the three alnico grades. The tone and response of the magnet is more powerful than its two cousins. This makes it perfect for bridge pickups. Where there is the least vibration. If you want an aggressive, in-your-face kind of sound, Alnico 5 is your best bet.
About Alnico Magnet:
Alnico magnets are produced in three different processes: casting, sintering, bonding. It can be processed into different sizes and shapes, with a minimum reversible temperature coefficient, and the operating temperature can be as high as 500 degrees Celsius.
Alnico alloys make for very strong, long-lasting magnets. Given their strength and durability, alnico alloys were consequently adopted for widespread consumer applications in which magnets with such properties were especially useful, such as electric motors, sensors, loudspeakers, etc. And electric guitar pickups. At its simplest, an electric guitar pickup consists of a permanent magnet wrapped in coils of wire, so it stands to reason that high-quality magnets such as those containing alnico would make for high-quality guitar pickups. And that they did — alnico-magnet pickups were found to produce a smooth, warm and highly musical tone.
As a manufacturer of magnetic products with 28-year experience, AOMAG MAGNETICS always focuses on enhancing the production capacity. Over 100 million magnetic products delivered to American, European, Asian and African countries each year, including Neodymium Rare Earth Magnets,Ferrite Magnets,Magnetic Assemblies,etc.