Aluminum alloy sheet excellent in high-temperature sagging resistance and sacrificial anode property and having high room-temperature strength
US4828936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Jun 9, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12764
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum alloy sheet as a fin material for tubes of a heat exchanger, excellent in high-temperature sagging resistance and sacrificial anode property and having a high room-temperature strength, which consists essentially of: PA0 Manganese: from 0.95 to 1.50 wt. %, PA0 silicon: from 0.5 to 1.2 wt. %, PA0 zinc: from 0.1 to 2.0 wt. %, PA0 at least one element selected from the group consisting of: PA1 copper: from 0.05 to 0.60 wt. %, and PA1 magnesium: from 0.05 to 0.60 wt. %, where, the total amount of said copper and said magnesium being up to 1.0 wt. %, and PA1 the balance being aluminum and incidental impurities. the above-mentioned aluminum alloy sheet may further additionally contain at least one element selected from the group consisting of: PA0 chromium: from 0.03 to 0.30 wt. %, and PA0 zirconium: from 0.03 to 0.15 wt. % where, the total amount of said chromium and said zirconium being up to 0.4 wt. %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.