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Description:The most commonly produced material is neodymium-iron-boron (NdFeB). This group of magnetic materials provides the highest available magnetic energies of any material. NdFeB magnets allow small shapes and sizes with high magnetic fields. Energy product ranges from 26 MGOe to about 45 MGOe. Super-strength rare earth magnets - sintered NdFeB magnets, have the characteristics of: 1) Extreme strong Br resident induction 2) Excellent demagnetization resistance capability 3) Good Price relative to its high magnetic properties 4) Coating is needed for NdFeB Surface treatment method: 1) Type information: metallic zinc, nickel, nickel + nickel, copper + nickel, nickel + copper + nickel gold, organic epoxy, nickel + epoxy coating 2) Temporary surface: passivation Both NdFeB and SmCo are available in sintered as well as bonded forms. Sintered NdFeB parts however, will produce the highest magnetic properties. NdFeB is sensitive to heat and should not be used in the environments that exceed 200. Bonded NdFeB are generally low in properties due to the special process of gluing the powder in a mold. The bonded form of the material can be produced with close tolerance off tools with little or no finishing required. The sintered form usually some finishing operations in order to hold close mechanical tolerances.