Material Properties Magnesium Alloy AZ31B Annealed May 20, 2016 admin Material Properties for Magnesium Alloy AZ31B Annealed Physical specifications of materials. Materials Magnesium Alloy AZ31B Description Annealed Density g/cc 1.77 lb/in^3 0.0639 Hardness Brinell unless specified 56 Tensile Strength ultimate Mpa 255 Ksi 36.975 Yield Strength MPa 150 Ksi 21.75 Modulus of Elasticity Gpa 45 10^6 Psi 6.52173912 Poisson’s Ratio 0.35 %Elongation at break 21 %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K 96 Btu/ft-h-F 55.491329472 Specific Heat Cpacity J/g-K 1 Btu/lb-F 0.24 Coefficient of thermal expansion 1E-6/K 26 1E-6/F 14.466165402 Electrical Resistivity Ohm-cm 0.0000092 Auto Amazon Links: No products found.Auto Amazon Links: No products found.