Adding materials to FEA material library

Hi All,

I am trying to add Brass (CZ122) aslo referred as CW617N. I was able to run a  SOL 101 Linear Statics solution on NX 10 by adding the following properties: mass density, Young's Modulus, Poisson's Ratio, Shear Modulus, Yield Strength and Ultimate tensile strength. However, I believe that I need more parameters like Initial Yield Point, Stress-Strain (H) and so on to perform SOL 106 Nonlinear Statics solution . If so what is the complete list of parameters I need to input? And where can I find a complete list of properties needed for the material CZ122 (Because I have tried searching everywhere to find a complete list of properties with little luck)?

Thanks,

Dag