The aluminum alloy commonly used for aircraft parts such as fuel tanks, wings, and fuselage skins is 7075 aluminum. This alloy is known for its high strength-to-weight ratio, making it a popular choice for applications where strength is critical.
7075 aluminum is an aerospace-grade alloy that is alloyed with zinc, copper, and magnesium. It has a high tensile strength and is highly resistant to fatigue, making it well-suited for use in structural applications in the aerospace industry. In addition to its high strength, 7075 aluminum also has good machinability and excellent corrosion resistance.
Due to its excellent strength-to-weight ratio, 7075 aluminum is often used in aircraft parts that are subjected to high stress and high loads, such as wing spars, fuselage frames, and bulkheads. It is also used for fuel tanks, engine mounts, and other structural components.
Overall, 7075 aluminum is a popular choice for aircraft parts due to its high strength, good machinability, and excellent corrosion resistance, making it well-suited for use in the demanding aerospace industry.