Rareearth magnet 0.75" x 0.250"

Imperial Dimensions - 0.75 (3/4)diameter x 0.250 (1/4)thick Metric Dimensions - 19.05mm diameter x 6.35mm thick Material - Sintered Neodymium-Iron-Boron (NdFeB) Shape - Disc Plating - Ni-Cu-Ni (Nickel) Magnetization Direction - Thickness Grade - N40 Pull Force (lbs[g]) - 16[7258] Surface Field(G) - 3817 Maximum Operating Temperature - 80 Deg C (176 Deg F) Dimensional Tolerance - +/-0.005" Magnet Quantity - 4 Volume (cm3) - 1.81 Weight (g) - 13.57 Brand - Magcraft Packaging - Magpak Tube UPC - 875661000825 Remanent Flux Density Br (kG [T]) - 12.5-12.8 [1.25-1.28] Coercivity HcB (kOe [kA/m]) - >=10.9 [>=867] Intrinsic Coercivity HcJ (kOe [kA/m]) - >=12.0 [>=995] Maximum Energy Product Bhmax (MGOe [kJ/m3]) - 38-41 [302-326] Density p(g/cm3) - >=7.45 Compression Strength (Mpa) - 600-1200 Bending Strength (Mpa) - 150-380 Vickers Hardness (HV) - 460-660 Recoil Permeability (urec) - 1.05 Electrical Resistance (Ohm*mm2/m) - 1.25-1.55 Curie Temperature Tc (°C) - 310 Thermal Expansion Coefficient 100°C//(x10^-6/K) - 6 Thermal Expansion Coefficient 100°C?(x10^-6/K) - (-1)