Al/Cu/Mg/Ag alloy with Si, semi-finished product made from such an alloy and method for production of such a semi-finished product

US7214279B2 · kind B2 · utility

Assignee

• Otto Fuchs KG

Inventors

• Gernot Fischer · Meinerzhagen, DE
• Dieter Sauer · Westlake Village, US
• Gregor Terlinde · Meinerzhagen, DE

Key dates

• Filing date: Jun 29, 2002
• Grant date: May 8, 2007
• Expiry date: Oct 20, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C21/16
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An Al/Cu/Mg/Mn alloy for the production of semi-finished products with high static and dynamic strength properties has the following composition: 0.3–0.7 wt % silicon (Si), max. 0.15 wt. % iron (Fe), 3.5–4.5 wt % copper (Cu), 0.1–0.5 wt. % manganese (Mn), 0.3–0.8 wt. % magnesium (Mg), 0.5–0.15 wt % titanium (Ti), 0.1–0.25 wt % zirconium (Zr), 0.3–0.7 wt. % silver (Ag), max. 0.05 wt. % others individually, max 0.15 wt. % others globally, the remaining wt. % aluminum (Al). The invention further relates to a semi-finished product made for such an alloy and a method of production of a semi-finished product made for such an alloy.