High proof stress Al—Zn aluminum alloy extrusion material superior in bendability
US10202671B2 · kind B2 · utility
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Key dates
| Filing date | May 8, 2015 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Sep 14, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/053
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A high proof stress aluminum alloy extrusion material having superior bendability and crack resistance. The high proof stress aluminum alloy extrusion material is an aluminum alloy comprising: 5.0 to 7.0 wt % of zinc; 0.5 to 1.5 wt % of magnesium; 0.05 to 0.3 wt % of copper; no greater than 0.15 wt % of zirconium; 0.1 to 0.4 wt % of iron; 0.05 to 0.4 wt % of silicon; with the balance being Al and impurities, in which at least 90% of a metallographic structure is a recrystallized structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.