Material Properties E-Glass Fiber Generic admin May 20, 2016January 17, 2017 Material Properties for E-Glass Fiber Generic Physical specifications of materials. Materials E-Glass Fiber Generic Description Density g/cc 2.57 lb/in^3 0.09285 Hardness Brinell unless specified Tensile Strength ultimate Mpa 3448 Ksi 499.96 Yield Strength MPa Ksi Modulus of Elasticity Gpa 72 10^6 Psi 10.434782592 Poisson’s Ratio 0.2 %Elongation at break 4.8 %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K 1.3 Btu/ft-h-F 0.7514450866 Specific Heat Cpacity J/g-K 0.81 Btu/lb-F 0.1944 Coefficient of thermal expansion 1E-6/K 5 1E-6/F 2.781954885 Electrical Resistivity Ohm-cm 4020000000000