Rare Earth Magnets N Number

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• Frequently Asked Questions

• What percentage of rare earth products are mixed rare earths?

  Most commercial products are mixed rare earth concentrates, accounting for approximately 95% of usage.

• Where do rare earth oxides come from?

  World production in 2013 of rare earth oxides was 110,000 tonne, with main production from China of 100,000 tonne, USA at 4,000 tonne and Australia at 2,000 tonne, mainly from the Mount Weld deposit in Western Australia.

• What are the grades of rare earth magnets?

  Rare earth magnets have a holding power, expressed in pounds. Neodymium iron bore (NdFeB) is a type of neodymium rare earth magnet that has a permanent holding. Rare earth magnets come in various grades such as N52, N42, and N45 . Gauss rating of neodymium magnets determines the speed that the magnets work, and is a magnetism measurement of strength.

• What are rare magnets?

  Ferrofluid on glass, with a rare-earth magnet underneath. Rare-earth magnets are strong permanent magnets made from alloys of rare earth elements. Developed in the 1970s and 80s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets.

• What are earth magnets?

  Rare-earth magnet. Rare-earth magnets are strong permanent magnets made from alloys of rare-earth elements . Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets.