Alcoa USA Corp.

Kaiser Aluminum Warrick, LLC

Jean F Capps

Thomas N Rouns

David J McNeish

Christopher L Walters

Christopher R Miller

Samuel Combs

In some embodiments of the present invention a method includes: obtaining a first aluminum alloy sheet formed from rolling a first ingot of a 3xxx or a 5xxx series aluminum alloy, wherein, prior to rolling, the first ingot has been heated to a sufficient temperature for a sufficient time to achieve a first dispersoid f/r of less than 7.65; and forming a container precursor from the first aluminum alloy sheet, wherein when the first aluminum alloy sheet is formed into the container precursor, the container precursor has less observed surface striations and ridges as compared to a container precursor formed from a second aluminum alloy sheet rolled from a second ingot having a second dispersoid f/r value of 7.65 or greater.

Aluminum sheet with enhanced formability and an aluminum container made from aluminum sheet

In some embodiments of present disclosure, a method includes: obtaining an aluminum sheet comprising a 3xxx or a 5xxx alloy having a tensile yield strength as measured in the longitudinal direction of 27-33 ksi and an ultimate tensile strength; wherein the ultimate tensile strength minus the tensile yield strength is less than 3.30 ksi (UTS-TYS&#x3c;3.30 ksi); and forming a container having a dome from the aluminum sheet.

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Owensboro, KY, United States of America

Jean F Capps