Extruded material of a free-cutting aluminum alloy excellent in embrittlement resistance at a high temperature
US8454766B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Mar 31, 2008 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Mar 31, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C21/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An extruded material of a free-cutting aluminum alloy excellent in embrittlement resistance at a high temperature, containing from 3 to 6% by mass of Cu and from 0.9 to 3% by mass of Bi with the balance being Aluminum and inevitable impurities, wherein a temperature for reducing the Charpy impact test value to half of the value at room temperature is 180° C. or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.