Introduction
7075 aluminum sheet and plate, recognized as an aerospace super duralumin, is a high-strength alloy with exceptional mechanical properties. It is widely utilized in various industries, including aviation, aerospace, automotive, and defense, among others. This article provides a detailed overview of 7075 aluminum sheets and plates, exploring their mechanical properties, specifications, surface quality, thickness tolerances, applications, and the selection process.
Mechanical Properties of 7075 Aluminium sheet & Plate
The mechanical properties of 7075 Aluminium sheet & Plates are influenced by factors such as temper, thickness, and heat treatment conditions. These properties are critical for determining the suitability of the material for specific applications. The following table outlines the typical mechanical properties of 7075 Aluminium sheet & Plates:
Take Aluminum 7075-T6 as an example
Mechanical Property |
Value (Range) |
Tensile Strength |
572 MPa (83,000 psi) |
Yield Strength |
503 MPa(73,000 psi) |
Elongation |
11 %
@Temperature 24.0 °C |
Modulus of Elasticity |
71.7 GPa (10,400 ksi) |
Hardness |
150 Brinell |
These values can be further enhanced through heat treatment processes like annealing, solution treatment, quenching, and aging.
7075 Aluminium sheet & Plate Specifications
The 7075 aluminum sheet can be customized to meet various application needs and processing requirements. The following table provides a general guideline for the size and thickness of 7075 aluminum sheets:
Specification |
Range |
Thickness |
0.2mm – 300mm |
Width |
≤2600mm |
Length |
≤16000mm |
Standards |
AMS 4044, AMS 4045, AMS 4046, AMS 4078, AMS 4122, AMS 4123, EN 4, ASTM B209, AMS-QQ-A-250, etc. |
The specific size and thickness range depend on the production equipment and processing technology available.
Surface Quality of 7075 Aluminium sheet & Plate
The surface quality of 7075 Aluminium sheet & Plates is crucial for their appearance, corrosion resistance, and mechanical properties. Huasheng Aluminum ensures strict control and testing of the surface quality, which includes:
- Surface Smoothness: The plate surface is smooth, without ripples or unevenness.
- No Obvious Defects: The surface is free from defects such as bubbles, cracks, scratches, oxidation, and color differences.
- Surface Cleanliness: The plate surface is clean and free of stains, with surface oxides removed.
To further improve the surface quality, Huasheng Aluminum offers surface treatments like anodic oxidation.
7075 Aluminium sheet & Plate Thickness Tolerances
The thickness tolerance of 7075 Aluminium sheet & Plates is determined by the thickness grade of the plate. The following table provides a general reference for thickness tolerances:
Thickness Range |
Tolerance |
>6.3mm |
±0.15mm |
1.5mm – 6.3mm |
±0.10mm |
<1.5mm |
±0.05mm |
It is essential to understand the specific thickness tolerance standards when purchasing 7075 aluminum sheets to ensure the quality meets the project requirements.
7075 Aluminium sheet & Plate Applications
Due to its robustness and resilience, 7075 aluminium is used extensively in various fields including:
- Aerospace: Components such as gears, shafts, and frames.
- Automotive: Highly stressed parts like chassis and suspension systems.
- Marine: Fittings and small boat hulls that require high strength.
- Sporting goods: Bicycle frames and climbing equipment.
- Military: Missile parts, regulating valve parts, and more.
7075 Aluminium sheet & Plates are also used in sports equipment, stage equipment, military equipment, and more.
7075 Aluminium sheet & Plate for Sale
Huasheng Aluminum offers various heat-treated 7075 Aluminium sheet & Plates to cater to different industry needs:
- 7075 T6 Aluminium sheet & Plate: Undergone solution treatment and natural aging, suitable for applications requiring high toughness and ductility.
- 7075 T651 Aluminium sheet & Plate: Undergone solution treatment and tensile balance treatment, ideal for applications requiring higher strength and rigidity.
- 7075 T7351 Aluminium sheet & Plate: Features high hardness, strength, and good corrosion resistance, used in aircraft fuselage, wing plates, propellers, etc.
- 7075 T7451 Aluminium sheet & Plate: Offers high hardness, strength, corrosion resistance, and good toughness, used in similar applications as T7351.
Chemical Composition of 7075 Aluminium sheet & Plate
The chemical composition of 7075 Aluminium sheet & Plates is as follows:
Element |
Percentage (%) |
Aluminum (Al) |
87.1 – 91.4 % |
Zinc (Zn) |
5.1 – 6.1 % |
Magnesium (Mg) |
2.1 – 2.9 % |
Copper (Cu) |
1.2 – 2.0 % |
Chromium (Cr) |
0.18 – 0.28 % |
Manganese (Mn) |
<= 0.30 % |
Titanium (Ti) |
<= 0.20 % |
Silicon (Si) |
<= 0.40 % |
Iron (Fe) |
<= 0.50 % |
Other elements |
<= 0.05 % for each, <= 0.15 % for total |
How to Choose the Right 7075 Aluminium sheet & Plate
When selecting a 7075 Aluminium sheet & Plate, consider the specific application requirements:
-
- For high strength and hardness, choose 7075 T7351 or T7451 plates.
- For better toughness and plasticity, opt for 7075 T7451 plates.
- T651 plates, with tensile balance treatment, offer high strength but relatively lower toughness.
- T6 plates, with natural aging treatment, have relatively lower strength but better toughness and ductility.
7075 Aluminium sheet & Plate Supplier
Huasheng Aluminum is a certified supplier with ISO, quality certifications, and other qualifications. We provide advanced production equipment and extensive production experience to meet customer needs and ensure product quality and performance standards. Our commitment to excellence ensures that we deliver high-quality 7075 Aluminium sheet & Plates and sheets for various industries.