Aluminum Grades for High-Quality Precision Machining


High-quality materials that can withstand the demanding nature of CNC machining are required for precision machining parts. Aluminum is one such material, and it has excellent machinability, strength, and corrosion resistance. However, all aluminum grades are not appropriate for CNC machining. This article will give information about different aluminum grades and identify the most appropriate for precision machining components. The most common grades of aluminum are 6061, 7075, 2024, and 6063. Let’s look at the differences between them. Meanwhile, if you are looking for a reliable manufacturer who provides services of precision machining parts, you can click on the link.

Grade 6061 Aluminium

Grade 6061 aluminum is one of the most frequently used grades in CNC machining. This grade of aluminum is perfect for precision machining parts because it has a good surface finish and high corrosion resistance. Additionally, 6061 aluminum has exceptional strength, machinability, and weldability. This grade of aluminum is best for suspension parts in automobiles and aircraft parts in the aerospace industry.

Grade 7075 Aluminium

It is another grade that is frequently used in CNC machining. This type of aluminum is renowned for having a high strength-to-weight ratio. It is perfect for uses that call for both high strength and lightweight. Furthermore, 7075 aluminum has good fatigue resistance. This helps make it perfect for applications requiring frequent loading cycles. In the aerospace and defense industries, this grade of aluminum is a good option for military equipment and aircraft parts.

Grade 2024 Aluminium

Grade 2024 aluminum is a high-strength alloy. It is used because of its excellent machinability and good fatigue resistance. The high strength-to-weight ratio and good corrosion resistance of this grade of aluminum make it the perfect material for precision-machined parts that need both high strength and low weight. Additionally, 2024 aluminum is simple to braze and weld, which makes it perfect for applications requiring joining. The aerospace and automotive industries widely use this grade of aluminum for engine parts and aircraft parts.

Grade 6063 Aluminium

The heat-treatable alloy grade 6063 aluminum is used in because of its excellent machinability and surface finish. This type of aluminum is frequently used in architectural applications like window and door frames because it has good corrosion resistance. Additionally, 6063 aluminum is easily formed and can be brazed and welded. This grade of aluminum is perfect for precision-machined components that demand a good surface finish and aesthetics.

Which Grade Makes the Best Parts for Precision Machining?

While all the above grades are appropriate for CNC machining, the final grade selection is based on the particular application’s requirements. Grade 7075 aluminum is the ideal material for precision machining parts that require high strength and low weight, and grade 6063 aluminum is the best material for components with good corrosion resistance and aesthetics. Grade 6061 aluminum is the best option for parts that need a good balance of strength and machinability. Grade 2024 aluminum is the best material to use for components that need to be highly durable and have good fatigue resistance.


In conclusion, high-quality materials like aluminum, which is renowned for its exceptional machinability, strength, and corrosion resistance, are necessary for precision machining parts. Not all aluminum grades, though, are appropriate for CNC machining. The particular application requirements ultimately determine the grade to be used. Aluminum of grades 6061, 7075, 2024, and 6063 are all suitable for precision machining parts and each grade has specific benefits. Precision machining parts can be produced with high accuracy and quality by selecting the right grade of aluminum.


Please enter your comment!
Please enter your name here