Material Properties Berillium Copper, (C17000) Th04 Temper admin May 20, 2016 Material Properties for Berillium Copper, (C17000) Th04 Temper Physical specifications of materials. Materials Berillium Copper, (C17000) Description Th04 Temper Density g/cc 8.26 lb/in^3 0.298 Hardness Brinell unless specified 353 Tensile Strength ultimate Mpa 1310 Ksi 189.95 Yield Strength MPa 1150 Ksi 166.75 Modulus of Elasticity Gpa 115 10^6 Psi 16.66666664 Poisson’s Ratio 0.3 %Elongation at break 2.5 %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K 118 Btu/ft-h-F 68.208092476 Specific Heat Cpacity J/g-K 0.42 Btu/lb-F 0.1008 Coefficient of thermal expansion 1E-6/K 16.7 1E-6/F 9.2917293159 Electrical Resistivity Ohm-cm 0.0000069