An attempt has been made to make duralumin alloy with chemical composition as Al=94.2%, Cu=4% Mn=0.5%, Mg=0.5% Si=0.5% and residual iron 0.3%. Important tests like ultimate tensile strength, proof strength, elongation, reduction, hardness, izodimpact strength, density and corrosion resistance have been studied in chill cast condition and also in the heat treated form. Effects of quenching temperature, quenching and soaking baths, soaking times and aging temperatures on the mechanical properties of the alloy have been observed, Results have been tabulated showing comparative improvements in various bearing properties.