Input material for forging is rolled billet of 110mm Diameter having reduction ratio of 5.5 and ASTM 4 grain size . In this case, the final grain sizes are a function of the amounts of deformation and the cooling rates that follow forging. Directional Free-machining-steel forgings: those made from steels with special alloying-element additions to facilitate machining. Cold-coined forging: // -->,