Aluminum Alloys France | A-U 4 SG

A-U 4 SG is a high-strength, heat-treatable aluminum-copper alloy with enhanced silicon content, offering excellent machinability, good wear resistance, and reliable performance under high mechanical loads. It is commonly used in aerospace, automotive, and mechanical engineering for forged parts such as structural components, fittings, and elements exposed to dynamic stresses. While its corrosion resistance is lower than that of other aluminum alloys, it can be effectively improved through surface treatments. At Rosswag, we produce high-quality forged components from A-U 4 SG using advanced open-die forging and precision machining. Its strong mechanical properties and processing versatility make it ideal for demanding engineering applications.