Aluminum is a non-ferrous metal with high output worldwide, and its cost is far lower than that of titanium alloy and carbon fiber. Aluminum alloys are suitable for large-scale applications, and are environmentally friendly and easy to recycle.
Data show that since 1888, about 75% of aluminum metal is still in use today. The energy consumption of recycled aluminum is equivalent to 5% of the original energy consumption of aluminum production, but the energy consumption of scrap steel is equivalent to 25% to 60% of the energy consumption of refined steel smelting.