Sintered Neodymium Iron Boron (Sintered NdFeB)
Due to over 20 years of continuous development the Neodymium Iron Boron Family has evolved over 30 grades based on the maximum energy product and operating temperature. Some grades have become obsolete as laboratory curios become factory product. Some factories are now claiming operating temperatures as low as 50ºC and up to 230ºC for specialist use. MagDev source from several factories and a summary of the range of grades is shown below. Please note that not all sizes are available in all grades. It is wise to seek assistance during the concept stage of product design to establish what we can offer.
Plating Characteristics
Plating Type Overall Thickness Salt Spray Test Pressure Cooker Test
NiCuNi (Nickel Copper Nickel) 15-21 μm 24 hours 48 hours
NiCu + Black Nickel 15-21 μm 24 hours 48 hours
NiCuNi + Epoxy 20-28 μm 48 hours 72 hours
NiCuNi + Gold 16-23 μm 36 hours 72 hours
NiCuNi + Silver 16-23 μm 24 hours 48 hours
Zinc 7-15 μm 12 hours 24 hours
Each individual layer of Nickel and Copper are 5-7 μm thick. The Gold and Silver plating layers are 1-2 μm thick.
Test results shown to allow comparison between plating options. Performance in your application under your specific test conditions may vary. Salt Spray testing conducted with a 5% NaCl solution, at 35°C. Pressure Cooker Test (PCT) conducted at 2 atm, 120°C at 100% RH.