Aluminium foil alloy
AssigneeNovelis Inc.
InventorsAndrew David HOWELLS, Hoellrigl Guenther, Armelle Daniélou, Florence Lauret
Life of this patent
Estimating the term…
Abstract
An aluminium alloy product having a gauge below 200 μm and a composition, in weight %, of Fe 1.0-1.8, Si 0.3-0.8, Mn up to 0.25, other elements less than or equal to 0.05 each and less than or equal to 0.15 in total, balance aluminium. A process of manufacturing the product includes the steps of continuous casting an aluminium alloy melt of the above composition, cold rolling the cast product without an interanneal step to a gauge below 200 μm and final annealing the cold rolled product. The product may be a deep drawn container.
Claims10
An aluminium alloy product having a gauge below 200 μm and the following composition in weight %:
- Fe 1.1-1.7
- Si 0.3-0.8
- Mn up to 0.25
- Other elements less than or equal to 0.05 each and less than or equal to 0.15 in total
- Al balance
- wherein the aluminium alloy product possesses the following properties:
- in the transverse direction:
- yield stress >100 MPa
- UTS >130 MPa
- elongation >19
- product of UTS×elongation >2500.
- in the longitudinal direction:
- yield stress >100 MPa
- UTS >140 MPa
- elongation >18
- product of UTS×elongation >2500.
Dependencies are inferred from the claim text.