Product Introduction
6061 and 6063 are heat-treatable alloys possessing good corrosion resistance. 6061 has as its major alloying elements magnesium and silicon, making it versatile and weldable. 6063 contains additions of manganese and silicon, which increases its corrosion resistance and workability but lowers its strength to slightly less than 6061.
Chemical composition
| Alloy | Si | Fe | Cu | Mn | Mg | Gr | Zn | Ti | Al |
| 6061 | 0.4-0.8 | 0.7 | 0.15-0.4 | 0.15 | 0.8-1.2 | 0.04-0.35 | 0.25 | 0.15 | Rest |
| 6063 | 0.50-0.6 | 0.35 | 0.10 | 0.10 | 0.45-0.9 | 0.10 | 0.10 | 0.10 | Rest |
Applications
Both 6061 -arid 6063 are used where the major requirements are good corrosion resistance, a high strength-to-weight ratio, and fairly good workability. 6063, because of its excellent finishing properties, finds popular use in architectural, furniture, and decorative applications.
6061 is commonly used for the following
Construction of aircraft structures, such as wings and fuselages, more commonly in homebuilt aircraft than commercial or military aircraft.2024 alloy is somewhat stronger, but 6061 is more easily worked and remains resistant to corrosion even when the surface is abraded, which is not the case for 2024, which is usually used with a thin Alclad coating for corrosion resistance.
