A Beginner’s Guide to Choosing the Right Aluminum 7075T for Your Next Project

A Beginner’s Guide to Choosing the Right Aluminum 7075T for Your Next Project

Aluminum 7075T is a popular aerospace and automotive-grade material that is high in strength, corrosion-resistant, and lightweight. Its high strength-to-weight ratio makes it an ideal choice for a wide range of applications, from aircraft frames to high-performance sports equipment. If you are looking for the perfect aluminum 7075T to meet your specific project needs, there are a few key factors to consider before making your choice.

In this post, we’ll take a closer look at how to make a smart choice when selecting aluminum 7075T for your next project.

Consider the Properties of Different Aluminum 7075T Grades

When choosing an aluminum grade, the first thing to consider is which grade is suitable for your specific project. Aluminum 7075T is available in several grades, each with its own set of properties. Grades of aluminum 7075T include 7075T6, 7075T651, and 7075T73. Each of these grades has unique characteristics, including strength, corrosion resistance, and machinability. Consider your project needs and take these factors into account when choosing an appropriate aluminum grade.

Look for the Right Surface Finish

The surface finish is important for some applications. The surface finish you choose may depend on your project’s requirements. Some surface finishes may be more suited to specific applications than others. Choosing a high-quality surface finish also ensures that impurities, such as dirt and other debris, do not affect the material's performance.

Understand the Machining Capabilities of Aluminum 7075T

The machining capabilities of aluminum 7075T are a significant factor in choosing the grade for your project. Machinability refers to the ability of the material to be cut, drilled, and formed to the desired shape. If your project involves complex or intricate machining, you may consider choosing a softer aluminum grade. 7075T is not an easy-to-machine material, especially in its harder states.

Consult an Expert

Consulting an expert is another smart way to choose the most suitable aluminum 7075T grade for your project. Since aluminum 7075T has so many different grades and properties, it can be challenging to choose the right one at times. An expert in the field can help you navigate the selection process and advise you on the best aluminum grade to meet your specific needs.

Determine Your Budget

The cost is an essential factor when selecting aluminum 7075T. Each grade comes with a different price point, which means you may need to balance your options with your budget. You should consider both the cost of the raw material and any additional expenses related to machining, finishing, and delivery.

Difference with Aluminum 6061

Aluminum 7075 and Aluminum 6061 are both popular aluminum alloys with distinct characteristics. Here's a comparison that help you to select Aluminum 6061 VS 7075:


Aluminum 7075 is significantly stronger than Aluminum 6061. It has a higher tensile strength and yield strength, making it suitable for applications that require high strength and durability.


Both alloys have relatively low density, but Aluminum 6061 is slightly lighter compared to Aluminum 7075. This makes Aluminum 6061 a preferred choice in industries where weight reduction is crucial, such as aerospace.

Corrosion Resistance:

Aluminum 7075 has lower corrosion resistance than Aluminum 6061. It is more susceptible to corrosion, especially in environments with high levels of salt or moisture. On the other hand, Aluminum 6061 has excellent resistance to corrosion.


Aluminum 6061 is known for its excellent machinability. It can be easily shaped, cut, and drilled, making it suitable for various machining operations. Aluminum 7075, although still machinable, is generally considered more difficult to work with due to its hardness.


Both alloys are weldable, but Aluminum 6061 has better weldability compared to Aluminum 7075. The latter may require special welding techniques to prevent cracking during the welding process.


Choosing the right aluminum 7075T grade is essential when undertaking any project. When selecting the best aluminum grade, consider the material's properties, machinability, surface finish, budget, and consult with an expert when necessary. By following these tips, you can select the right aluminum grade to meet your project needs.