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7075 Aluminum: Properties & Applications

When it comes to materials that have revolutionized industries and pushed the boundaries of what is possible, aluminum often takes center stage. Among the many variants of this versatile metal, 7075 aluminum stands out as a powerhouse in the world of engineering and manufacturing.

What Makes 7075 Aluminum Special?

7075 aluminum is an ultra-high-strength alloy that offers exceptional strength-to-weight ratio, making it a preferred choice for applications where lightweight yet durable materials are crucial. This aluminum alloy contains zinc as the primary alloying element, along with small amounts of magnesium and copper.

7075 Aluminum Properties

The 7075 aluminum alloy boasts high strength, moderate corrosion resistance, limited weldability and workability, yet good machinability.

Density Of Aluminum 7075

The density of aluminum 7075, at 2.81 g/cc, offers benefits such as lightweight design, improved fuel efficiency, and enhanced overall performance in aerospace, automotive, and sporting applications due to its high strength-to-weight ratio.

7075 Aluminum Mechanical Properties

The mechanical properties of 7075 aluminum reveal its strength: boasting a tensile strength of 228 MPa, a yield strength of 103 MPa, and a modulus of elasticity of 71.7 GPa.

7075 Aluminium Advantages

7075 aluminium’s mechanical properties offer a range of advantages:

  • Exceptional Strength: With a high tensile strength of 228 MPa and yield strength of 103 MPa, 7075 aluminum excels in applications requiring robust materials to withstand high stress and loads.

  • Structural Integrity: The modulus of elasticity of 71.7 GPa indicates stiffness and the ability to maintain structural integrity under varying forces, ensuring reliability in demanding environments.

  • Weight Savings: Despite its strength, 7075 aluminium is relatively lightweight, making it ideal for applications where weight reduction is crucial, such as in aerospace and automotive industries.

  • Durability: The high tensile and yield strengths of 7075 aluminum contribute to its durability, allowing it to withstand harsh conditions and repetitive loading without compromising performance.

  • Versatility: Its superior mechanical properties make 7075 aluminium a versatile material suitable for a wide range of applications, including aerospace, automotive, and high-performance equipment manufacturing.

7075 Aluminum Thermal Properties

The thermal properties of 7075 aluminum, including a high thermal conductivity of 173 W/m-K and a coefficient of thermal expansion of 23.4 µm/m-°C over the temperature range of 20.0 – 100 °C, signify that this alloy efficiently conducts heat and expands moderately with temperature changes.

  • Thermal Conductivity: The high thermal conductivity indicates that aluminum 7075 can effectively transfer heat, making it suitable for applications where heat dissipation is important, such as in heat sinks or electronic enclosures.

  • Coefficient of Thermal Expansion: The coefficient of thermal expansion value shows how much the material expands or contracts in response to temperature changes. In this case, 7075 aluminum expands moderately with temperature variations, which can be beneficial in applications requiring dimensional stability across a range of operating temperatures.

Wide Applications of 7075 Aluminum

The adaptability of 7075 aluminum alloy makes it a go-to choice across a spectrum of industries. Renowned for its lightweight yet robust characteristics, this alloy is highly prized in sectors such as aerospace, aircraft, and automotive for its exceptional durability and resilience against fatigue factors.

In the aerospace domain, aluminum 7075 plays a pivotal role in the construction of vital components like fuselages and wings. Its versatility extends beyond aviation to recreational pursuits like cycling, rock climbing, archery, and firearms manufacturing, where its strength and reliability are highly valued.

Featured Product Of 7075 Aluminum

The 7075 aluminum bar stands out as a premium choice for applications that demand resilience and strength under high-stress conditions. Renowned for its exceptional durability and reliability, this bar is specifically engineered to excel in environments where robust performance is non-negotiable.

Popular Reasons for Using the 7075 Aluminum Bar

The popularity of the 7075 aluminum bar is primarily driven by its ability to meet specific application requirements effectively. Here are some key factors:

  • Strength and Durability: Industries that demand high strength and durability, such as aerospace, automotive, and machinery manufacturing, favor the 7075 aluminum bar for its exceptional tensile strength and resistance to wear and tear.

  • Weight Considerations: Applications where weight reduction is critical, like in aerospace and sports equipment manufacturing, benefit from the lightweight nature of the 7075 aluminum bar without compromising on strength.

  • Corrosion Resistance: Sectors exposed to harsh environments, such as marine and outdoor equipment manufacturing, choose the 7075 aluminum bar for its corrosion resistance, ensuring longevity and reliability in challenging conditions.

  • High-Stress Applications: For applications subjected to high stress, such as heavy machinery and industrial equipment, the 7075 aluminum bar’s ability to maintain structural integrity under pressure makes it a preferred material.

  • Temperature Resistance: Industries requiring materials with good temperature resistance, such as in high-temperature environments or thermal management systems, opt for the 7075 aluminum bar for its ability to maintain structural integrity under varying temperature conditions.

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