Prodsuct Introdsuction
7075 aluminum alloy is another common alloy, wide variety. It contains zinc and magnesium. More common in the aluminum alloy strength is best is 7075 alloy, but it can't be welded, and its corrosion resistance is rather poor, many manufacturing parts with CNC cutting is 7075 alloy. Zinc in this series is the main alloying element, add a little magnesium alloy can make the material can be heat treatment, reached a very high strength characteristic. This series of materials are generally added with a small amount of copper, chromium and other alloys, among which the number 7075 aluminum alloy is especially superior, with the highest strength, suitable for aircraft frames and high-strength accessories.
Prodsuct Parameter
Si | Fe | Cu | Mn | Mg |
0.40 | 0.50 | 1.2-2.0 | 0.30 | 2.1-2.9 |
Cr | Zn | Ti | other | Al |
0.18-0.28 | 5.1-6.1 | 0.20 | 0.15 | remainder |
Prodsuct Feature and Application
Zinc is the main alloy element in 7075. Adding magnesium to the alloy containing 3%-7.5% zinc can form MgZn2 with significant strengthening effect, which makes the heat treatment effect of the alloy far better than that of the binary alloy containing aluminum-zinc. The tensile strength can be further improved by increasing the content of zinc and magnesium in the alloy, but the ability to resist stress corrosion and spalling corrosion will decrease accordingly. Through heat treatment, very high strength properties can be achieved.
7075 materials are generally added with a small amount of copper, chromium, and other alloys, among which 7075-t651 aluminum alloy is especially superior. It is praised as the best aluminum alloy with high strength and far superior to any mild steel. The alloy also has good mechanical and anodic properties. Representative USES are aerospace, mold processing, mechanical equipment, fixture, especially for manufacturing aircraft structure, and other requirements of high strength, strong corrosion-resistance of high-stress structure.