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Alnico Blocks

Alnico Block Magnets, which include bar magnets, are often used in educational facilities from elementary school through to post-graduate work and have a wide range of experimental applications. With high residual induction compared to Neodymium and Ceramic Ferrite magnets, Alnico magnets are still very sensitive to demagnetization. Alnico magnets are the weakest of permanent magnets, however they have excellent temperature stability and very good resistance to corrosion. They are famous in audio sound recording and performance for their ability to clarify sound. Their mechanical strength is greater than either Neodymium or Ceramic Ferrite magnets because Alnico magnets are both hard and brittle.

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The Pull Force listed for each magnet is based on lifting 10mm thick steel from a horizontal surface. Magnets on a vertical surface (of 10mm thick steel) are generally able to hold around only 30% of the pull force listed in the product description. This is due to the effects of gravity and the lack of friction between the surface and the shiny magnet. Read More