Sintered Ndfeb Magnets Brief Introduction
Sintered NdFeB magent has been commercially available since Novermber 1983. NdFeB magnets offer the highest energy product of any material today and are available in very wide range of shapes, sizes and grade.
Physical properties of NdFeB magnets
Parameters Units Indicators
Density g/cm3 ≥7.3
Home temperature ℃ 310-340
BrReversible temperature coefficient ℃/% -0.100~-0.130
HcjReversible temperature coefficient ℃/% ﹣0.40~﹣0.70
Compressive strength N/mm2 1050
Bending strength N/mm2 250
Tensile strength N/mm2 80
Webster Hardness 600
Coefficient of thermal expansion(20 to 200℃) 10-6/k ∥5⊥-1.5
Specific heat J/(Kg.K) 460
Thermal conductivity W/(m.K) 9
Resistivity μΩ.cm 150