Large 4" Red/Silver Horseshoe Alnico Magnet - With Marked Poles and Keeper Bar

Dowling Magnets

$ 11.95 
SKU: MAGDOW742115

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4 Inch Horseshoe Alnico Magnet

Painted With Keeper

This horseshoe alnico magnet is ideal for magnetic demonstrations in classrooms or for use as a piece of equipment in the laboratory. Alnico is an acronym referring to a family of iron alloys which in addition to iron are composed primarily of aluminium (Al), nickel (Ni) and cobalt (Co), hence al-ni-co. Alnico alloys are ferromagnetic, with a high coercivity (resistance to loss of magnetism) and are used to make permanent magnets. This alnico magnet is carefully painted with the North and South poles marked. Included is a steel keeper bar to protect the poles from damage or loss of magnetism.


 

The following is a list of types of magnets from strongest to weakest.

  1. Neodymium
  2. Hematite
  3. Ceramic
  4. Alnico
  5. Soft Iron
  6. Steel

 


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