Patent ID: 6423155
Filing Date: 2002-07-23
Classification: C21D,C22C

Abstract:
A method for producing a high strength metal alloy having high magnetic saturation induction comprising the steps of:melting together in a vacuum or protective atmosphere in percent by weight an alloy mixture consisting essentially of: about 20% to about 35% Co; about 2% to about 6% Ni; 0% to about 0.15% C; about 0.75% to about 3% Mo; 0% to about 3.0% Cr; 0% to about 2% Mn; with the balance comprised of Fe; forming the alloy melt into at least one billet; homogenizing said billet under a protective atmosphere; hot rolling the homogenized billet to plate; normalizing or solution heat treating said plate under a vacuum or inert gas protective atmosphere; quenching the normalized or solution heat treated plate; precipitation aging the quenched plate; and, cooling the precipitation aged plate to ambient temperature.