Material Properties Cellulose Acetate admin May 20, 2016January 17, 2017 Material Properties for Cellulose Acetate Physical specifications of materials. Materials Cellulose Acetate Description Density g/cc 1.28 lb/in^3 0.04625 Hardness Brinell unless specified 70(Rockwell-R) Tensile Strength ultimate Mpa 33 Ksi 4.785 Yield Strength MPa 26 Ksi 3.77 Modulus of Elasticity Gpa 1.7 10^6 Psi 0.2463768112 Poisson’s Ratio %Elongation at break 35 %Reduction of area Izod Impact J 2.42 Ft-lb 1.785476 Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K 0.25 Btu/ft-h-F 0.1445086705 Specific Heat Cpacity J/g-K 1.4 Btu/lb-F 0.336 Coefficient of thermal expansion 1E-6/K 159 1E-6/F 88.466165343 Electrical Resistivity Ohm-cm 1000000000000