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:
Dec. 16, 1986
Filed:
Jul. 16, 1984
Bernard W Lifka, New Kensington, PA (US);
William G Truckner, Avonmore, PA (US);
Ralph W Rogers, Jr, New Kensington, PA (US);
Aluminum Company of America, Pittsburgh, PA (US);
Abstract
A shaped aluminum article is disclosed characterized by a yield strength of over 414 MPa (60 ksi) and good corrosion resistance when aged to a T76 temper. The article is formed from an aluminum base alloy having good formability in an annealed state, and sufficiently low quench sensitivity to permit air quenching. The alloy consists essentially of: 6.5. to 7.5 wt. % zinc, 2.4 to 3.0 wt. % magnesium, 0.0 to 0.8 wt. % copper, and 0.01 to 0.18 wt. % zirconium, with the following maximum amounts of other alloying ingredients or impurities: 0.2 wt. % silicon, 0.4 wt. % iron, 0.1 wt. % manganese, 0.05 wt. % chromium, 0.06 wt. % titanium, and 0.05 wt. % maximum each other alloying ingredient or impurity with a total maximum of 0.15 wt. %, the balance consisting of aluminum.