From a tension test, the experimental data (true strain – true stress) are: True Strain True Stress (MPa) 0.01 69.0 0.03 119.5 0.06 169.0 0.1 218.2 0.15 267.2 0.2 308.6 0.25 345.0 0.3 378.0 0.35 408.2 0.4 436.4 0.45 462.9 0.5 488.0 0.8 617.0 Define the Strength coefficient (K) and strain hardening exponent (n) representing a power law true stress/strain curve (σ=KƐ n )