Magnet Materials

Magnet Material Selection

Manufactured in DuBois, Pennsylvania, Magnet Applications, Inc. is the only North American manufacturer of compression bonded, injection molded and hybrid magnets. In addition, we provide sintered neodymium magnets and magnetic assemblies. Our exclusive NeoBlend™ neodymium magnets can be designed to any size, shape or strength thanks to a complete range of presses from 4-ton to 200-ton.

Magnet Applications, Inc. engineers are ready to assist you with the important task of magnet material selection. Our material selection includes the full range of NdFeB grades including radial rings and the latest high temperature grades for the most demanding applications. The design considerations include temperature, vibration, cost, energy product, oxidation, electrical conductivity and more. Read more about Permanent Magnets in our Tech Brief here.

Neodymium Iron Boron (NdFeB)

Sintered-Neo-2.jpg

  • Rare Earth magnet
  • Offers the highest Br and Hci values
  • The strongest magnet available – up to 52 MGOe
  • Susceptible to oxidation due to high iron content
  • Can be used in environments up to 200°C

Magnet Material Charts

Bonded Neodymium

Bonded-Neo.jpg

  • Popular resin bonded magnet (resin bonds particles during the compression bonded or injection molded process)
  • Available up to 11 MGOe and with a coating
  • Typical applications include encoders and BLDC motors
  • Temperature limit of 150°C
  • Low cost, low electrical conductivity

Magnet Material Charts

Samarium Cobalt

Samarium-Cobalt-2.jpg

  • Rare Earth magnet
  • Extremely strong – currently up to 32 MGOe
  • Less susceptible to oxidization and more brittle than Neodymium
  • Withstands high temperature environments – up to 300°C
  • Generally more expensive than Neodymium

Magnet Material Charts

Ceramic/Ferrite

Ceramic-Ferrite-1.jpg

  • Produced from Barium or Strontium ferrite powders
  • Excellent choice for low cost and low Br requirements – up to 4.2 MGOe
  • Corrosion-resistant
  • Ideal for use in electrical insulators
  • Withstands high temperature environments – up to 300°C

Magnet Material Charts

Alnico

Alnico-Ring.jpg

  • Made from Aluminum, Nickel and Cobalt
  • Available up to 5.5 MGOe; easily demagnetized
  • Corrosion-resistant
  • Ideal for use in electrical insulators
  • Maximum high temp resistance – up to 540°C

Magnet Material Charts