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0.75” X 0.0625” RARE EARTH DISC MAGNET (10)

0.75” X 0.0625” RARE EARTH DISC MAGNET (10)
0.75” X 0.0625” RARE EARTH DISC MAGNET (10)0.75” X 0.0625” RARE EARTH DISC MAGNET (10)

Part# MFM683

Rare-Earth Disc Magnets, 0.75 in. Diameter x 0.0625 in. Thick, 10-Count

Product Description

These disc magnets are 0.75 inch (19.1mm) diameter and 0.063 inch (1.6mm) 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 NSN0683
Imperial Dimensions 0.75 inch diameter x 0.0625 inch thick
Metric Dimensions 19.05mm diameter x 1.5875mm thick
Material Sintered Neodymium-Iron-Boron (NdFeB)
Shape Disc
Plating Ni-Cu-Ni (Nickel)
Magnetization Direction Thickness
Grade N40
Pull Force (lbs[g]) 4[1814]
Surface Field(G) 1899
Maximum Operating Temperature 80 Deg C (176 Deg F)
Dimensional Tolerance +/-0.005"
Magnet Quantity 10
Volume (cm3) 0.45
Weight (g) 3.39
Brand Magcraft
Packaging Magpak Tube
UPC 875661000832
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