Aviation aluminum plate, as aluminum plates designed and used specifically for the aviation field, have become an indispensable and important material for modern aviation manufacturing due to their high strength, light weight and good corrosion resistance.
Both 7075 and 7475 aviation aluminum plates belong to the 7 series aluminum alloy. They are super-hard aluminum alloys in the aviation aluminum series and have good wear resistance, corrosion resistance and mechanical properties.
Both 7075 and 7475 aviation aluminum plates contain zinc (Zn) and magnesium (Mg) as the main alloy elements. The MgZn2 structure formed by these elements has a significant strengthening effect, making both alloys characterized by high strength and high hardness.
7075 aluminum alloy may be slightly inferior to 7475 aluminum alloy in strength, but 7475 aluminum alloy has better fracture toughness while maintaining high strength. This makes 7475 aluminum alloy more advantageous in certain application scenarios where both strength and toughness need to be considered.
The corrosion resistance of 7075 aluminum alloy is relatively poor, while the 7475 aluminum alloy has better corrosion resistance. This may be due to the addition of more alloying elements to the 7475 aluminum alloy, forming a denser oxide film, thereby improving its corrosion resistance.
7075 aviation aluminum plate:
Strength: tensile strength σb (MPa) ≥ 560, yield strength σp0.2 (MPa) ≥ 495.
Plasticity: The plasticity is good after solution treatment, and the strengthening effect of heat treatment is good.
Low temperature strength: good strength below 150℃.
Welding performance: Poor welding performance and tendency to stress corrosion cracking.
7475 aviation aluminum plate:
Strength and toughness: High strength and good fracture toughness.
Corrosion resistance: Has better corrosion resistance.
Other properties: Specific mechanical properties such as tensile strength, yield strength, etc. may vary depending on the specific state and processing method.
7075 aviation aluminum plate: mainly used to manufacture aircraft structures and other high-stress structural parts that require high strength and corrosion resistance, such as aircraft upper and lower wing wall panels, stringers, etc. In addition, it is also widely used in mold processing, mechanical equipment, tooling fixtures and other fields.
7475 aviation aluminum plate: mainly used for aluminum-clad and non-aluminum-clad plates for fuselage, wing frames, stringers, etc. and other parts that require both high strength and high fracture toughness.
Aircraft aluminum sheets are specially treated to provide extremely high strength and rigidity while maintaining a low density. This property makes it ideal for manufacturing lightweight, high-strength aerospace components, helping to improve the overall performance and fuel efficiency of aircraft.
Typical Application of Aviation aluminum Plate:
| Item | Grade | Temper | Application |
| 1 | 2024 | O,T351,T851 | Fuselage structure, wing tensile component, shear web, stiff structure section |
| 2 | 2014 | T851,T351 | Fuselage machining component, bulkhead, wing skins and other structure component for high performance military aircraft |
| 3 | 2324 | T39 | Lower wing skins and wing box component for commercial aircraft |
| 4 | 7050 | T7651,T7451 | fuselage ring, frame |
| 5 | 7150 | T6151,T7751 | Upper wing skins for large commercial airplane which requires resistant to high pressure, upper wing reinforce plate and lower horizontal stabilizer panel for civil and military aircraft |
| 6 | 7055 | T7751 | Upper wing structure, horizontal stabilizer, keel beam, seat track, freight slide track |
| 7 | 7075 | T651, T7651,O,T7351 | Airplane structure component required high strength, moderate toughness and moderate corrosion resistance |
| 8 | 7475 | T651,T7351 | Fuselage skin, wing skin, wing spar, fuselage bulkhead |
Aerospace aluminum plates have good processability and are easy to cut, bend and weld, meeting the needs of complex shapes and structures in aircraft manufacturing.
Aviation aluminum plate
Aviation aluminum plates play a pivotal role in aircraft manufacturing and have a wide range of applications, including but not limited to:
Fuselage and wings: Aviation aluminum plate is one of the main materials for manufacturing aircraft fuselage and wings. Its lightweight and high-strength characteristics help reduce the weight of the aircraft and improve flight efficiency.
Internal structural parts: In the internal structure of aircraft, aviation aluminum plates are widely used to manufacture frames, ribs, partitions and other components to ensure the overall stability and safety of the aircraft.
Fuel tanks and casings: The corrosion resistance of aviation aluminum sheets makes them an ideal material for manufacturing key components such as fuel tanks and casings, effectively preventing fuel leakage and corrosion problems.
In addition to the aviation field, aviation aluminum plates are also widely used in many other industries:
Automobile manufacturing industry: Aviation aluminum sheets are used to manufacture automobile bodies, engine covers, doors and other components, which help reduce the weight of automobiles and improve fuel consumption efficiency and sports performance.
Electronics industry: In the casings and conductive parts of consumer electronics such as smartphones and tablets, aviation aluminum sheets are favored for their high conductivity and plasticity.
Construction industry: Aviation aluminum panels can be used in the manufacture of building facades, roofs, skylights and other components. Its excellent weather resistance ensures the long-term use of the building.
