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