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7050 Aerospace Aluminum Profile Extrusion

7050 aluminum alloy is a high-strength heat-treatable aluminum alloy commonly used in the aerospace industry, particularly for manufacturing structural components that require high strength and fatigue resistance.

The main characteristics of 7050 include excellent stress corrosion cracking resistance and good toughness, especially notable in thick plates and extruded profiles.

7050 aluminum alloy profiles are suitable for producing large structural components with thick cross-sections, such as aircraft wing beams, fuselage frames, landing gear, and supporting structures.

7050 Aerospace Aluminum Profile Extrusion

7050 Aerospace Aluminum Profile Extrusion Specifications

Currently offering to the following specifications:

AMS-4340, AMS-4341, AMS-4342

Latest Designation: DMS-2227

Other Specifications: ABS, ASNA, LN, Werkstoff, NTA, DAN, AIR

7050 Extrusion Aluminum Profile Features

  • 1. High Strength: 7050 aluminum alloy possesses extremely high strength, especially after heat treatment (such as in the T7451 or T7651 temper), with strength comparable to 7075, while exhibiting better crack resistance.
  • 2. Excellent Stress Corrosion Resistance: Compared to 7075, 7050 aluminum alloy demonstrates superior resistance to stress corrosion cracking and exfoliation corrosion, making it especially suitable for aerospace components that must serve in moist or corrosive environments for extended periods.
  • 3. Outstanding Fatigue Performance: 7050 extruded aluminum profiles show excellent fatigue resistance under dynamic loads, making them ideal for use in high-fatigue stress aircraft components.
  • 4. Good Machinability: Despite its high strength, 7050 aluminum alloy retains good machinability and can be extruded, forged, and machined using conventional processing methods.

Haomei 7050 Aluminum Aerospace Profile

Haomei Aluminum is a professional manufacturer of aerospace materials with AS9100 aerospace certification. 7050 aluminum extruded profiles come in various shapes and sizes.

7050 T6 Aerospace Grade Aluminum Profile Extrusion

  • Characteristics: 7050 T6 is a high-strength aluminum alloy with excellent fatigue resistance, primarily used for structural applications requiring maximum strength. The T6 temper involves solution heat treatment and artificial aging to achieve high hardness.
  • Aviation Applications: Used in critical structural components like aircraft wings, fuselage frames, and bulkheads, where strength-to-weight ratio and resistance to stress cracking are essential.

7050 T73 Aerospace Grade Aluminum Profile

  • Characteristics: 7050 T73 provides enhanced stress corrosion resistance and slightly reduced strength compared to T6. It undergoes a two-stage aging process that improves durability.
  • Aviation Applications: such as fuselage skins, bulkheads, and wing spars, where corrosion resistance is crucial.

7050 T76 Aerospace Grade Aluminum Extrusions

  • Characteristics: 7050 T76 offers a balance between T6's high strength and T73’s improved stress corrosion resistance. It is subjected to a specific aging process for enhanced toughness.
  • Aviation Applications: Utilized in structural components such as wing ribs and spars, where a compromise between maximum strength and resistance to stress corrosion cracking is needed.

7050 O Aircraft Grade Aluminum Extrusion

  • Characteristics: In the O temper, 7050 aluminum is in its annealed state, providing maximum ductility and formability but low strength.
  • Aviation Applications: Primarily used for forming complex shapes or structures before being heat treated to higher strength tempers. Commonly used in pre-forming wing and fuselage parts that will later undergo further processing.

7050 T7451 Aircraft Grade Aluminum Profiles

  • Characteristics: 7050 T7451 has excellent resistance to stress corrosion cracking and is typically used in thick plate forms. It is heat-treated and stress relieved by stretching.
  • Aviation Applications: Utilized in large structural components such as wing spars and fuselage frames, especially where high stress resistance and fatigue performance are critical.

7050 T7651 Aluminum Aircraft Extrusion

  • Characteristics: The T7651 temper offers a unique combination of high strength, good fracture toughness, and improved stress corrosion resistance. It is solution heat-treated, stress relieved, and aged.
  • Aviation Applications: Used in load-bearing components such as landing gear struts, wing ribs, and fuselage sections that require both high strength and resistance to environmental factors.

7050 T7452 Aircraft Aluminum Extrusion

  • Characteristics: This temper provides good stress corrosion resistance and is solution heat-treated, stress relieved by compression, and aged.
  • Aviation Applications: Suitable for machined components like fuselage frames and wing ribs, where a combination of high strength and resistance to stress corrosion is essential.

7050 T73511 Aluminum Extrusion

  • Characteristics: 7050 T73511 offers a balance between high strength and good stress corrosion cracking resistance. It is aged and stress relieved through stretching.
  • Aviation Applications: Commonly used for aircraft structural components such as longerons, wing spars, and fuselage frames, where maintaining strength under cyclical loading and exposure to corrosive environments is necessary.

The chemical composition of 7050 aircraft grade aluminum extrusion

Element Composition(%)
Si 0.12
Fe 0.15
Cu 2.0-2.6
Mn 0.10
Mg 1.9-2.6
Cr 0.04
Zn 5.7-6.7
Ti 0.06
Zr 0.08-0.15
Other 0.20
Al Remainder

Application of 7050 Aluminum Profiles in the Aerospace Field

7050 aluminum profiles have extensive applications in the aerospace field, especially in critical load-bearing structures and high-stress environments.

1. Wing Spars and Skin

Wing spars are one of the most important load-bearing structures of an aircraft, enduring the immense lift and loads generated during flight. 7050 aluminum profiles are often used for main spars, secondary spars, and other load-bearing structures due to their high strength and excellent corrosion resistance. This aluminum alloy exhibits superior fatigue resistance, enabling it to withstand long-term dynamic stress and harsh environmental conditions. Especially during long-haul flights or under heavy loads, the rigidity and strength of the wing must remain reliable. With its high strength-to-weight ratio, 7050 aluminum profiles help reduce aircraft weight, improve fuel efficiency, and ensure flight safety.

Additionally, wing skin also requires materials with high fatigue and corrosion resistance. The excellent crack resistance and wear resistance of 7050 aluminum alloy make it well-suited for wing skins. It can effectively extend the service life of wings by resisting wind resistance and environmental impacts.

2. Aircraft Fuselage Frames

The fuselage frame is the core of the overall structure, supporting both the outer shell of the aircraft and its internal systems. The high strength of 7050 aluminum profiles makes them ideal materials for fuselage frames. Since the aircraft is subjected to internal pressure and external environmental stress during flight, the fuselage frame must maintain its structural integrity. The high strength and fatigue resistance of 7050 aluminum ensure that the fuselage frame resists deformation or cracking over long-term use. Additionally, its excellent corrosion resistance and durability mean that the material maintains stable performance even in harsh environments like high humidity or salt spray.

3. Landing Gear Components

Landing gear is one of the components that bear the greatest impact and stress during takeoff and landing, requiring materials with extremely high strength and corrosion resistance. 7050 aluminum profiles, with their outstanding tensile strength and toughness, are widely used in the load-bearing components of landing gear, such as struts, wheel hubs, and other critical connecting parts. Particularly during repeated landings, the landing gear must endure high loads and extreme stress. The high fatigue strength of 7050 aluminum ensures its long life under frequent use.

Moreover, landing gear is often exposed to external environments and is vulnerable to corrosion from rain, salt spray, and other factors. The corrosion resistance of 7050 aluminum helps reduce maintenance costs and extend component life, ensuring safe and reliable operation of the landing gear under various weather and environmental conditions.

7050 aluminum profiles, with their high strength, corrosion resistance, and excellent fatigue resistance, play a crucial role in the aerospace field, particularly in load-bearing structures, fuselage frames, and landing gear components.

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