Tungsten Carbide 93 - 95 % Cobalt 5 - 7 % > Density 14.947 - 15.0% g/cm > 3 o Thermal Conductivity 100 W/m/C Electrical Resistivity 20 u ohms/cm Linear Expansion Coefficient 20 - 400C > o 4.9 10/C > -6o Linear Expansion Coefficient 20 - 800C > o 5.3 10/C > -6o Transverse Rupture Strength @ 20C > o 2600 N/mm > 2 Fracture Toughness K c @ 20C > o 12 MN/m > 2 Compressive Strength @ 20C > o 6200 N/mm > 2 Poisson's Ratio 0.22 Magnetic Properties Slightly magnetic >