7A04 Aluminum Alloy

7A04 aluminum is an ultra-high-strength Al-Zn-Mg-Cu super-duralumin, engineered for the most demanding structural environments. As a flagship 7000 series alloy, it offers exceptional compressive strength and toughness, rivaling many steels while maintaining a low weight. Typically supplied in T6 or T651 tempers, it is a staple for B2B procurement in aerospace and defense. Its superior mechanical properties make it the definitive choice for aircraft skins, high-stress landing gear components, and heavy-duty structural frames.

Description

Linsy 7A04 aluminum is an ultra-high-strength Al-Zn-Mg-Cu super-duralumin, engineered for the most demanding structural environments. As a flagship 7000 series alloy, it offers exceptional compressive strength and toughness, rivaling many steels while maintaining a low weight. Typically supplied in T6 or T651 tempers, it is a staple for B2B procurement in aerospace and defense. Its superior mechanical properties make it the definitive choice for aircraft skins, high-stress landing gear components, and heavy-duty structural frames.

Application of 7A04 Aluminum Alloy

  • Parts of an aircraft
  • Outside coverings of wings
  • Used in commercial and military planes
  • Separators in the plane
  • Main frames of the aircraft

7005 Aluminum Alloy applications in aircraft frames and wing coverings

Specification

Alloy Temper Thickness (mm) Width (mm) Length (mm)
7A04 Alu. Sheet/Coil T6,T651 0.3-600 500-2600 500-16000
Length, width, and height can be customized
Alloy Temper Outer Diameter (mm) Inner Diameter (mm) Length (mm)
7A04 Alu. Tube T6,T651 Φ1 – 17,000mm Φ0.5 – 1500mm 5-20,000
Length, width, and height can be customized
Alloy Temper Diameter (mm) Length (mm)
7A04 Alu. Bar T6,T651 Φ1 – 10,000mm 5-20,000
Length, width, and height can be customized

Chemical Composition

Element Percentage %
Si 0.5 Max
Fe 0.5 Max
Cu 1.4-2.0
Mn 0.2-0.6
Mg 2.0-3.0
Cr 0.1-0.25
Zn 5.0-7.0
Others/Each 0.05
Others/Total 0.15
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Mechanical Properties and Tempers

Aluminum 7A04
Tensile Strength,Ultimate > 530 MPa
Tensile Strength,yield 390-500 MPa
Elongation at Break % > 6%
Modulus of Elasticity 72 GPa

 

Feature

  • Ultra-High Strength: One of the strongest commercial aluminum alloys, specifically designed for high-load environments.
  • Excellent Toughness: Maintains structural integrity under extreme pressure and impact.
  • Good Machinability: Despite its hardness, it machines well to precise tolerances in the T6 state.
  • Heat Treatable: Properties can be finely tuned through various aging processes to balance strength and stress-corrosion resistance.

Why Choose Linsy

Linsy Aluminum is a leading supplier of aluminum products. We provide services to many industries, such as aerospace, automotive, shipbuilding, general engineering, and other special industrial needs.

We focus on maintaining high-quality standards and caring for the environment. Our commitment is clear through our certifications: ISO 9001:2008 for quality management, ISO 14001:2004 for environmental management, and OHSAS 18001:2007 for health and safety management.

Linsy Aluminum sells its products in Europe and many other places. These places include South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and several countries in South Asia.

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Linsy Advantages

Linsy Aluminum is a leading supplier of aluminum processing products, serving diverse industries including aerospace, general engineering, automotive, marine, shipbuilding and other specialized industrial applications.

We are committed to maintaining the highest standards of quality and environmental responsibility, as demonstrated by our certifications: ISO 9001:2008, ISO 14001:2004 and SGS.

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