7475 T7651 T7351 T651 Aircraft Aluminum Plate

7475 aluminum alloy belongs to the aluminum-zinc alloy series, featuring high strength and good corrosion resistance. It is typically used in structural components that require high strength and lightweight.

7475 t7651 and T7351 are two commonly used aluminum alloy materials, widely applied in aerospace and other high-strength requirement fields.

Below is a comparison table for 7475-T7651 and 7475-T7351 aerospace aluminum alloy plates:

What is 7475 Aluminium Plate?

7475 aluminum alloy is a high-strength material derived from 7075 aluminum alloy, with excellent mechanical properties, especially in crack propagation resistance, fatigue resistance, and fracture toughness. As a heat-treatable alloy, 7475 aluminum alloy is widely used in the aerospace industry, particularly in critical components of commercial aircraft, fighter jets, and transport aircraft.

Compared to 7075 aluminum alloy, 7475 aluminum alloy has about 40% higher toughness in the same temper condition, and its corrosion resistance and fatigue performance are equal to or better than many other high-strength aerospace alloys. This makes 7475 aluminum alloy an ideal choice, especially for aerospace applications requiring high strength, excellent fracture toughness, and fatigue resistance.

Main Advantages of 7475 Alloy

• High strength and good fracture toughness: provides excellent crack propagation resistance, suitable for structural components subjected to extreme working conditions.
• Excellent corrosion resistance: compared to other high-strength aluminum alloys, 7475's corrosion resistance is outstanding, particularly suitable for aerospace components in complex environments.
• Fatigue performance: The fatigue behavior of 7475 alloy is among the best in high-strength aluminum alloys, especially suited for components that need to endure repeated loading, such as wing frames, spars, and more.

7475 aluminum alloy is widely used in aircraft fuselage, wing frames, spars, and other structural components. It is also suitable for other aerospace components that require high strength and crack propagation resistance. Its unique properties make it an indispensable material in the aerospace industry.

Characteristics of 7475 t7651 and T7351 Aircraft Aluminum Plate

• High Strength: The tensile and yield strength of 7475 are very high, making it suitable for components that bear high loads.
• Good Corrosion Resistance: With proper surface treatment, 7475 can exhibit good corrosion resistance in humid environments.
• Weldability: Welding performance is relatively poor, but structural connections can be achieved through other methods (such as riveting).

Specification of 7475 Aluminum Sheet

7475 t7651 T7351 Aircraft Aluminum Plate Chemical Composition

7475 t7651 T7351 Aircraft Aluminum Plate Mechanical Properties

Haomei Aluminum 7475 Aluminum Sheet Tempers

7475 aluminum alloy is available in various heat treatment states, each imparting different performance characteristics to the alloy, thus meeting different application requirements.

7475 T651 Aircraft Aluminum Plate

Heat Treatment State (T651): The 7475 aluminum alloy plate in T651 condition undergoes solution treatment followed by stress relieving, retaining excellent strength and toughness. This state of the alloy is suitable for aerospace applications requiring high strength and toughness.

Characteristics:

• High Strength: The 7475 aluminum alloy in T651 condition provides extremely high mechanical strength, suitable for parts subjected to high loads.
• Toughness and Crack Propagation Resistance: After appropriate heat treatment, the T651 condition retains good toughness, effectively resisting crack propagation, thus increasing the durability of parts.
• Good Machinability: Due to the stress relief, T651 aluminum alloy does not undergo deformation during machining, helping to ensure the precision of complex parts.

Applications:

Used in high-stress structural components such as aircraft fuselage, wing skins, and wing parts.

Suitable for parts requiring high strength and fatigue resistance, such as airframe frames and spars.

7475 T7351 Aircraft Aluminum Plate

Heat Treatment State (T7351): The 7475 aluminum alloy in T7351 condition offers high strength and good toughness, having undergone a special aging treatment. This state is suitable for applications with medium to high strength requirements, especially for components needing high fatigue resistance and toughness.

Characteristics:

• High Fatigue Resistance: The T7351 condition has excellent fatigue resistance, making it suitable for structures subjected to repeated loads over extended periods.
• Fracture Toughness: Compared to T651, T7351 offers enhanced crack propagation resistance and fracture toughness, making it ideal for aerospace components requiring high toughness.
• Corrosion Resistance: The T7351 condition performs well in corrosion resistance, especially for components exposed to the harsh environments of aircraft.

Applications:

Used in medium-to-high strength structural components for aircraft, such as wing frames, spars, and cockpit structures.

Particularly suitable for load-bearing parts in aircraft and components that require high fatigue performance.

7475 T7651 Aircraft Aluminum Plate

Heat Treatment State (T7651): The 7475 aluminum alloy in T7651 condition undergoes a special heat treatment process, mainly through aging and temperature control, to optimize the alloy’s strength and toughness. This condition offers very high strength and excellent crack propagation resistance.

Characteristics:

• Extremely High Strength: The 7475 aluminum alloy in T7651 condition is used in applications requiring ultra-high strength, suitable for parts subjected to extreme load conditions.
• Fatigue and Crack Propagation Resistance: Compared to other alloy states, T7651 provides superior fatigue resistance and crack propagation resistance, making it ideal for aerospace parts that require long-term reliability under high stress.
• Good Corrosion Resistance: The T7651 condition retains good corrosion resistance, making it suitable for use in complex environments.

Applications:

Used in high-strength aerospace structural components such as aircraft wing beams, fuselage frames, and wing skins, which require extremely high strength.

Suitable for key flight structures requiring superior crack propagation resistance, strength, and toughness.

The following table introduces the main characteristics and application ranges of 7475 aluminum alloy in T651, T7351, and T7651 conditions.

Common Trade Names

UNS A97475, ISO AlZn5.5MgCu(A), AA7475-T7351, Al7475-T7351

7475 Aluminum Plate Applications

7475 aluminum alloy plate is widely used in the aerospace industry due to its high strength, excellent fracture toughness, and fatigue resistance, especially for high-stress and crack-prone components.

1. Fuselage Skin

In aircraft fuselage skins, 7475 aluminum plate provides the necessary high strength and crack propagation resistance. As the main load-bearing component on the exterior of the aircraft, the fuselage skin must withstand aerodynamic pressures, wind forces, and other external loads during flight. The high strength of 7475 aluminum alloy ensures the aircraft fuselage remains strong and durable while being lightweight, resisting stress concentrations and crack propagation during flight.

2. Cabin Walls

Cabin walls are critical components in the internal structure of an aircraft, carrying loads and separating different sections of the cabin. The use of 7475 aluminum plate in cabin walls improves the safety and stability of the aircraft. Its excellent fatigue performance and fracture toughness ensure the walls can withstand repeated loads over time without crack propagation, ensuring the safety of passengers and cargo.

3. Wing Components

7475 aluminum alloy plate is particularly important in aircraft wings, especially in areas subject to high strength and fatigue loads. Wing components typically bear substantial aerodynamic loads during takeoff and landing, and need to endure long periods of cyclic stress. The excellent crack propagation resistance of 7475 aluminum plate improves the reliability of wing components, reducing the risk of fatigue damage.

4. Wing Beams

Wing beams are the primary load-bearing components of an aircraft wing, supporting the wing skin, maintaining the wing's shape, and distributing the loads generated during flight. The extremely high strength and toughness of 7475 aluminum alloy plate make it ideal for such load-bearing structures. Its use in wing beams significantly enhances the structural strength of the wing and ensures flight stability.

5. Fuselage Bulkheads

7475 aluminum alloy plate is also commonly used in aircraft fuselage bulkheads, especially in areas requiring high strength, corrosion resistance, and fatigue resistance. Bulkheads typically endure various pressures and stresses from both inside and outside the aircraft during flight. The excellent crack propagation resistance and toughness of 7475 aluminum alloy make it the ideal choice for high-performance aerospace structures.

7475 aluminum alloy plate is primarily used in key load-bearing components of aircraft, especially in structures such as fuselage, wings, and bulkheads. Its advantages in fatigue resistance, crack propagation resistance, and high strength make it a crucial material choice in the aerospace industry, particularly for components subjected to high mechanical loads, prone to cracking, or requiring long-term usage.

Hot selling 7475 aluminum plate size list

You may also be interested in the following

• 

  7050 7475 Aerospace Aluminum for Wing Attach Structure

  Alloys 7050 and 7475 are used in the construction of wing attach structures, ensuring safety and durability during flight.

• 

  7050 7475 7099 Aircraft Aluminum for Wing Ribs

  7050, 7475, and 7099 high-strength aluminum alloys are used to manufacture wing ribs, providing structural support to the wings and enhancing structural integrity.

• 

  7050 7475 7099 Aerospace Aluminum for Wing Spars

  7050, 7475, and 7099 have outstanding strength-to-weight ratios and fatigue resistance, making these high-strength aluminum alloys ideal materials for manufacturing wing spars.

• 

  2024, 7075, and 7475 Aerospace Aluminum for Wing Skins

  2024, 7075, and 7475 combinations exhibit excellent strength and fatigue resistance, making them suitable for wing skins to withstand deformation under stress.