The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 1992
Filed:
Jan. 24, 1991
William J Schumacher, Monroe, OH (US);
Armco Inc., Middletown, OH (US);
Abstract
A substantially martensitic stainless steel as cast having good castability, ductility and capability of being hardened to a wide range of hardness, the steel consisting essentially of, in weight percent, up to about 0.08% carbon, about 1.0 to about 4.0% maganese, about 13.0 to about 17.0% chromium, about 1.5 to about 4.0% copper, up to about 0.12% nitrogen, less than about 1.0% silicon, less than about 1.0% molybdenum, less than 1.0% nickel, less than about 0.03% phosphorus, less than about 0.5% sulfur, up to about 0.005% boron, up to 0.5% niobium, vanadium, titanium and/or zirconium and balance essentially iron. The steels have particular utility in the production of cast golf clubs, forged golf clubs, cutlery, boat propellers and other cast, forged and wrought products, including free machining materials.