EXPERIMENT LMAPR-E2: Cold Work and Annealing of Brass Fibht the sections in the Tables : Percent cold reduction. vs . hardness ( Table annealing temperature VS . hardness ( ( Table 2) annealing temperature vs. gain size ( ( Table 3 Table 1. Percent cold Reduction versus Hardness Percent Cold Reduction Hardness HV (10kg) HV(10) Original sample 20 % 40 % 60 % 80 %