Aluminum alloy having an excellent combination of strength, extrudability and corrosion resistance
US10000828B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2013 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Sep 25, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2255/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum alloy having an excellent combination of strength, extrudability and corrosion resistance may include in weight percent, about 0.01% or less copper; about 0.15% or less iron; about 0.60 to about 0.90% manganese, where manganese and iron are present in the alloy in a Mn:Fe ratio of at least about 6.6; about 0.02% or less nickel; about 0.08 to about 0.30% silicon; about 0.10 to about 0.20% titanium; and about 0.05 to about 0.20% zinc; the balance being aluminum and unavoidable impurities. Extruded articles and other articles may be formed using the alloy. Methods of forming such articles may include homogenizing a billet of the alloy prior to forming the article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.