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.

Date of Patent:
Mar. 26, 2002

Filed:

Jan. 31, 2000
Applicant:
Inventors:

Thomas J. Klemp, Massena, NY (US);

Richard A. Jeniski, Jr., New Kensington, PA (US);

David W. Hohman, Hamburg, PA (US);

Assignee:

Alcoa Inc., Pittsburgh, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 2/108 ;
U.S. Cl.
CPC ...
C22C 2/108 ;
Abstract

This invention relates to an aluminum alloy with B-rated or better machineability, said alloy being suitable for using as brazing in the Nocolock® process. The alloy consists essentially of: about 0.5-0.8 wt. % silicon; about 0.4-0.6 wt. % magnesium; about 0.4-0.72 wt. % tin; up to about 0.5 wt. % iron; up to about 0.3 wt. % copper; up to about 0.35 wt. % manganese; up to about 0.15 wt. % chromium; and up to about 0.2 wt. % zinc; the balance aluminum and incidental elements and impurities. This product is preferentially processed into one or more of the following tempers: T1, T5, T6, T651, T6510, T6511, T8, T851, and T9.


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