Magcraft Magnets . MFM 0.5” X 0.5” Rare Earth Rod Magnet (4)

Rare-Earth Rod Magnets, 0.5 in. Diameter x 0.5 in. Long, 4-Count
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SPECIFICATIONSThese rod magnets are 0.500 inch (12.7mm) diameter and 0.500 inch (12.7mm) long. They are magnetized through the length. They are composed of grade 40 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Their individual pull force is approximately 19 lbs. Maximum working temperature is 176 F (80 C). Part Number NSN0643 Imperial Dimensions 0.5 inch diameter x 0.5 inch long Metric Dimensions 12.7mm diameter x 12.7mm long Material Sintered Neodymium-Iron-Boron (NdFeB) Shape Rod Plating Ni-Cu-Ni (Nickel) Magnetization Direction Length Grade N40 Pull Force (lbs[g]) 19.92[9036] Surface Field(G) 5218 Maximum Operating Temperature 80 Deg C (176 Deg F) Dimensional Tolerance +/-0.005" Magnet Quantity 4 Volume (cm3) 1.61 Weight (g) 12.07 Brand Magcraft Packaging Magpak Tube UPC 875661000436 Remanent Flux Density Br (kG [T]) 12.5-12.8 [1.25-1.28] Coercivity HcB (kOe [kA/m]) >=11.3 [>=923] 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
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