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0.5” X 0.15” X 0.125” RARE EARTH RING MAGNET (12)

0.5” X 0.15” X 0.125” RARE EARTH RING MAGNET (12)
0.5” X 0.15” X 0.125” RARE EARTH RING MAGNET (12)0.5” X 0.15” X 0.125” RARE EARTH RING MAGNET (12)

Part# MFM590

Rare-Earth Ring Magnets, 0.5 in. Outside Diameter x 0.15 in. Inside Diameter x 0.125 in. Thick, N, 12-Count

Product Description

These countersunk ring magnets are 0.500 inch (12.7mm) outside diameter, 0.150 inch (3.8mm) 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 3 lbs. Maximum working temperature is 176 F (80 C).

Part Number NSN0590
Imperial Dimensions 0.5 inch outside diameter x 0.15 inch inside diameter x 0.125 inch thick
Metric Dimensions 12.7mm outside diameter x 3.81mm 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]) 3.2[1451]
Surface Field(G) 3531
Maximum Operating Temperature 80 Deg C (176 Deg F)
Dimensional Tolerance +/-0.005"
Magnet Quantity 12
Volume (cm3) 0.37
Weight (g) 2.75
Brand Magcraft
Packaging Magpak Tube
UPC 897970000860
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