Material Properties Silica Glass admin May 20, 2016January 17, 2017 Material Properties for Silica Glass Physical specifications of materials. Materials Silica Glass Description Density g/cc 2.18 lb/in^3 0.0788 Hardness Brinell unless specified 443 Tensile Strength ultimate Mpa 69 Ksi 10.005 Yield Strength MPa Ksi Modulus of Elasticity Gpa 68 10^6 Psi 9.855072448 Poisson’s Ratio 0.19 %Elongation at break %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 0.7 Ksi(in)^0.5 0.63 Thermal conductivity W/m-K 1.38 Btu/ft-h-F 0.79768786116 Specific Heat Cpacity J/g-K 0.75 Btu/lb-F 0.18 Coefficient of thermal expansion 1E-6/K 0.75 1E-6/F 0.41729323275 Electrical Resistivity Ohm-cm 5000000000