2024 vs 7075 Aluminum: What is the Difference Between

Alloys are made by combining two or more metals. It helps in enhancing the features of base metals and further modify their properties. Aluminum alloys are one of the most demanding materials because of their unique features and applications in engineering. 2024 and 7075 are high strength materials that have many industrial uses. In this article, we are focused on explaining their differences, properties, features, and applications. Let’s start by defining these alloys and then their differences.

Aluminum 2024 Definition

2024 Aluminum alloy has the main alloying agent copper. Categorized as a heat-treated alloy, 204 aluminum composition also includes Fe and Mg. It has a very soft nature and has high malleability. But heat treatments, specially annealed tempering convert it into a high strengthened alloy. Aircraft aluminum alloys include this alloy as a preferred choice. Because it has lower weight and high strength features.

Aluminum 7075 Definition

7075 Aluminum has the main alloying agent zinc. Also classified as heat-treated alloy, 7075 aluminum composition also has Mg, Cr, and Cu. Percentage of these elements differs with the applications as they impart high strength in the alloy. And it is then manufactured according to applications. Presence of Cu also increase the chance of corrosion. But its presence is essential as it also enhances its other features. It is also a soft alloy by nature and possesses high malleability. But given heat treatments make it a high strengthened alloy and makes it stronger than steel.

What is the Difference Between 2024 and 7075 Aluminum?

The main difference between these alloys is the composition. 2024 aluminum alloy contains Cu as the main alloying element. And 7075 has Zn as the main alloying agent. Presence of Cu in 2024 aluminum composition lower its strength than 7075. 2024 aluminum weldability is low and has lower corrosion resistance. But it has higher fatigue strength. And better cutting features makes it perfect as aircraft grade aluminum. However, 7075 has lower fatigue strength and moderate cutting features.

2024 and 7075 Aluminum Alloy Specification

2024 vs 7075 has main differences in its composition. The compositional chart has explained below to further characterize its differences.

Chemical Composition Chart

Physical Properties

Due to differences in composition, 2024 aluminum vs 7075 has different physical properties. These differences are elaborated with respect to their physical properties.

Strength

7075 has higher strength than 2024 aluminum alloy. This implies 7075 can tolerate pressure and stress at a higher rate and for longer period of time than 2024.

Durability

7075 has higher durability. 2024 vs 7075 shows basic differences in strength and durability. As 7075 higher durability makes it withstand longer than the other one.

Weight

The density of 7075 aluminum is 0.102lb/in³. While 2024 has 0.1lb/in^3. This shows 7075 has relatively higher weight than 2024.

Corrosion Resistance

7075 has better corrosion resistance characteristics. 2024 has low resistance and cannot survive harsh environments.

Cost

The cost of 7075 is higher than 2024. This is because of its better resistance and strength and other properties.

Mechanical Properties

The mechanical properties of 2024 vs 7075 are explained in the table below.

Weldability

2025 aluminum weldability is poor as compared to 7075. 2025 has high Cu content which creates cracking during welding. This makes welding difficult for 2024.

Joining strength

7075 has higher joining strength as compared to 2024. This is because 2024 is vulnerable to cracking during joining. 7075 has high toughness and strength therefore it can join better than 2024.

Machinability

2024 has better machinability than 7075. 7075 is hard and has high toughness and strength which makes it difficult to machine. China Tuofu has more knowledge in aluminum machining services.

Summary 2024 vs 7075 Comparison Chart

The summary of all the differences of 2024 aluminum vs 7075 are explained in the table below to summarize it in a better way.

What is 2024 or 7075 Aluminum used for?

2024 alloy has high machinability and fatigue strength. Its low weight and high strength make it suitable as aircraft aluminum alloy. Its aircraft grade aluminum is used in engine components, propellers, and shells for aircraft. In the military, it is used in making ships, weapons, and devices. It is also used in armored vehicles and rockets. In automobiles, it is used in making structures and other parts. Electrical parts, machinery like bolt and nuts, casings are made of 2024.

7075 has main applications in aerospace and in military as in making structures, and other parts like vehicles, engine components and many more. Transportation industry uses 7075 in making aluminum wheels, aluminum frame, and aluminum brakes. Sports industry uses 7075 in making aluminum golf club, aluminum skis, and other devices. 7075 is also used in manufacturing molds and dies and precision machine tools.

2024-T3 vs 7075-T6

Al 2024 t3 is naturally aged alloy after being cold worked and solution treated. 7075-t6 is an artificially aged alloy after being solution treated. 2024 t3 sheets shows its properties which are explained below along with the aluminum 7075 t6 properties.

2024-T4 vs 7075-T6

Al 2024 t4 refers to naturally aged solution treated alloy. Aluminum 2024 t6 properties are shown below. Aluminum 7075 t6 properties are also explained as 2024 vs 7075 in the table.

Why Choose Tuofa to Custom 2024 or 7075 Aluminum Parts?

If you are looking for a supplier for Aluminum parts, China Tuofa offers best services of custom parts. It offers rapid prototyping, and on-demand fabrication of aluminum parts. Custom machining services for aluminum parts include 3D printing, sheet metal fabrication and surface finishing such anodizing and sand blasting for a huge variety of Aluminum grades.

FAQs About 2024 and 7075 Aluminum

Is 2024 better than 7075 for fatigue strength?

Yes, 2024 offers higher fatigue strength than 7075. It offers high machinability as toughness is high in 7075 so it’s difficult to withstand cycling loading for a longer time.

Is 2024 aluminum strong?

Yes, 2024 aluminum is stronger. But when comparing to 7075, it is less strong than 7075. This is because of the presence of Cu which creates cracks during joining.

Disadvantages of 2024 Aluminum

2024 aluminum has low toughness and strength. it is also prone to corrosion resistance. it is difficult to withstand harsh environment for a longer time for 2024.