Magcraft Magnets . MFM 0.75” X 0.375” X 0.125” Rare Earth Ring Magnet (6)

Rare-Earth Ring Magnets, 0.75 in. Outside Diameter x 0.375 in. Inside Diameter x 0.125 in. Thick, 6-Count
Article number:
MFM615
Availability:
In stock
C$16.99
Excl. tax
SPECIFICATIONS These ring magnets are 0.750 inch (19.1mm) diameter, 0.375 inch (9.5mm) inside diameter and 0.125 inch (3.2mm) thick. They are magnetized through the thickness. 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 4 lbs. Maximum working temperature is 176 F (80 C). Part Number NSN0615 Imperial Dimensions 0.75 inch outside diameter x 0.375 inch inside diameter x 0.125 inch thick Metric Dimensions 19.05mm outside diameter x 9.525mm inside diameter x 3.175mm thick Material Sintered Neodymium-Iron-Boron (NdFeB) Shape Ring Plating Ni-Cu-Ni (Nickel) Magnetization Direction Thickness Grade N40 Pull Force (lbs[g]) 4.01[1819] Surface Field(G) 3194 Maximum Operating Temperature 80 Deg C (176 Deg F) Dimensional Tolerance +/-0.005" Magnet Quantity 6 Volume (cm3) 0.68 Weight (g) 5.09 Brand Magcraft Packaging Magpak Tube UPC 875661000153 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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