1. Fuselage: The fuselage, or the main body of the aircraft, is made primarily of aluminum alloy 2024-T3. It is a strong, lightweight material that is resistant to corrosion.
2. Wings: The wings are also primarily made of aluminum alloys, including 2024-T3 and 7075-T6. These materials provide the necessary strength and durability to withstand the stresses of flight.
3. Control Surfaces: The control surfaces, such as ailerons, elevators, and rudders, are made of a combination of aluminum alloys and composite materials. Composite materials, which are formed by combining multiple materials such as carbon fiber and epoxy resin, offer high strength and reduced weight compared to traditional metal components.
4. Tail: The tail section, including the horizontal and vertical stabilizers, is largely constructed from aluminum alloys similar to those used in the fuselage and wings.
5. Landing Gear: The landing gear components, including the wheels, brakes, and struts, are typically made of high-strength steel alloys. These materials can withstand the impact forces of landing and taxiing.
6. Engines: The engines, mounted on the wings, are complex assemblies consisting of various materials such as titanium, steel, and nickel alloys. These materials can endure the extreme temperatures and stresses associated with engine operation.
7. Interior Components: The interior of the aircraft, including the seats, walls, and ceiling panels, is made from a variety of materials, including fabrics, plastics, and composite materials. These materials are chosen for their durability, comfort, and aesthetic appeal.
It's worth noting that the materials used in aircraft construction may vary slightly between different models and variants of the Boeing 737, as well as between different manufacturers and aircraft models in general.
