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:
May. 25, 1982
Filed:
Sep. 24, 1980
Ronald H Espy, West Chester, OH (US);
Armco Inc., Cincinnati, OH (US);
Abstract
A ferritic stainless steel containing 0.03% maximum carbon, up to about 12% manganese, about 0.03% maximum phosphorus, about 0.030% maximum sulfur, about 1.0% maximum silicon, about 12% to about 26% chromium, about 5% maximum nickel, 0.10% to 0.5% aluminum, 0.2% to 0.45% columbium, 0.03% maximum nitrogen, about 2% maximum copper, about 5% maximum molybdenum, residual titanium, and balance essentially iron. Columbium is present in excess of the amount required to react completely with carbon. The steel has high ductility and toughness in heavy sections and good corrosion resistance in weld areas.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile