Material Properties Polyethylene Terephthalate (PET) Base Resin admin May 20, 2016January 17, 2017 Material Properties for Polyethylene Terephthalate (PET) Base Resin Physical specifications of materials. Materials Polyethylene Terephthalate (PET) Description Base Resin Density g/cc 1.3 lb/in^3 0.04 Hardness Brinell unless specified Tensile Strength ultimate Mpa 59 Ksi 8.555 Yield Strength MPa Ksi Modulus of Elasticity Gpa 2.48 10^6 Psi 0.35942028928 Poisson’s Ratio %Elongation at break 10 %Reduction of area Izod Impact J 0.267 Ft-lb 0.1969926 Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K Btu/ft-h-F 0 Specific Heat Cpacity J/g-K Btu/lb-F Coefficient of thermal expansion 1E-6/K 83 1E-6/F 46.180451091 Electrical Resistivity Ohm-cm 1000000000000000