What is 7075-T6 Aluminum Alloy
7075-T6 aluminum is a high performance aluminum alloy material with excellent physical and mechanical properties. The following is a detailed explanation of its definition:
1. Alloying elements:
7075-T6 aluminum is mainly composed of aluminum, zinc, magnesium and other elements, of which zinc is the main alloying element, which provides high strength and hardness. The following is a table of the metal composition of 7075-T6 aluminum alloy
| element | Percentage of content（%） |
|---|---|
| aluminium (Al) | about 95-99% |
| copper(Cu) | 1.2 – 2.0% |
| manganese (Mn) | 0.30% |
| magnesium (Mg) | 2.1 – 2.9% |
| silicon (Si) | <0.4% |
| Iron (Fe) | <0.5% |
| chromium (Cr) | 0.18 – 0.28% |
| Zinc (Zn) | 5.1 – 6.1% |
| titanium (Ti) | 0.2% |
2. T6 status:
“T6” means that the alloy has undergone a specific heat treatment process. That is, solid solution treatment and artificial aging treatment. This treatment process significantly improves the strength, hardness and corrosion resistance of the alloy.
3. Physical and mechanical properties:
- Strength: It has high strength below 150 degrees and has particularly good low temperature strength.
- Welding Properties: It has poor welding properties and there is a tendency of stress corrosion cracking. So it is difficult to weld.
- Corrosion resistance: due to the role of alloying elements, 7075-T6 aluminum alloy has good corrosion resistance.
- Processing performance: after solid solution treatment, the material has good plasticity and is easy to process into various shapes.
- Yield Tensile Strength：503 MPa
- Ultimate Tensile Strength：572 MPa
- Tensile Modulus: 72 GPa
- Shear Strength: 331 MPa
- Shear Modulus: 26 GPa
- Fatigue Strength: 159 MPa
- Elongation At Break: 11 %
- Poisson’s Ratio: 0.32
- Hardness: B87/150
- Density: 2.8 g/cm³
The uses of aluminum 7075-T6 aluminum：
According to these characteristics above we can know that 7075-T6 aluminum extrusion products can be used in the following:
Aircraft structural parts:
Because of its high strength and high corrosion resistance, 7075-T6 aluminum profiles is widely used in the manufacture of aircraft structural parts, such as upper and lower wing wall panels, truss bars and other key components. Its excellent physical properties can ensure the safe operation of aircraft in complex environments.
Aerospace parts:
In the field of aerospace, 7075-T6 aluminum profiles also play an important role, used in the manufacture of various structural parts and components for spacecrafts.
Military Carriers:
The high strength and hardness characteristics of 7075-T6 aluminum alloy make it an ideal material for manufacturing military vehicles, tanks, armored vehicles and other equipment. Its light weight and high strength enable it to reduce vehicle weight, and by increasing wall thickness it can be bulletproof.
Weapon Systems:
The material is also widely used in the manufacture of weapon systems, such as gun barrels and missiles, to meet the stringent requirements for material properties in military equipment.
To summarize
7075-t6 aluminum extrusion is a high-performance alloy product. Because of its superior performance, it is used in modern weapons and aerospace applications. 2024 will see a large market demand for it as wars in Russia and the Middle East continue.
Hugh Aluminum is an aluminum extrusion plant located in China. We have 7075 aluminum extrusions, CNC and surface treatment capabilities. We are able to manufacture military grade aluminum extrusion products.
If you need to purchase in bulk or looking for quality suppliers. Please contact us!
