Material Properties Elastomer- Styrene Butadiene Rubber (Sbr) admin May 20, 2016January 17, 2017 Material Properties for Elastomer- Styrene Butadiene Rubber (Sbr) Physical specifications of materials. Materials Elastomer- Description Styrene Butadiene Rubber (Sbr) Density g/cc 0.93 lb/in^3 0.0336 Hardness Brinell unless specified 71(Shore-A) Tensile Strength ultimate Mpa 30 Ksi 4.35 Yield Strength MPa Ksi Modulus of Elasticity Gpa 0.0163 10^6 Psi 0.0023 Poisson’s Ratio %Elongation at break 500 %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K Btu/ft-h-F Specific Heat Cpacity J/g-K Btu/lb-F Coefficient of thermal expansion 1E-6/K 1E-6/F Electrical Resistivity Ohm-cm 1000000000000000