Aluminium 6082 vs 6063 – What’s the Difference

Aluminium 6082 vs 6063

When choosing the right type of aluminium for your project, it can be overwhelming to determine which grade to use. Aluminium 6082 and 6063 are popular options, but what’s the difference? In this blog post, we’ll take a closer look at these two grades of aluminium and help you make an informed decision on which one to use for your next project.

Difference Between Aluminium 6082 and 6063


Aluminium 6082 and 6063 have different chemical compositions. 6082 contains more silicon and magnesium, giving it higher strength and ideal for structural applications. On the other hand, 6063 contains more aluminium and magnesium, which makes it more suitable for applications where aesthetics are important, such as window frames and decorative materials.

Strength and Toughness

As mentioned earlier, 6082 has a higher strength than 6063, making it perfect for structural applications. It has a higher tensile strength, yield strength, and hardness than 6063. However, 6063 is more malleable, making it easy to extrude and form into complex shapes.


Both 6082 and 6063 are easy to weld, but 6082 is more difficult to weld compared to 6063 due to its higher strength and alloy composition. Welded joints in 6082 may be susceptible to cracking, but this can be prevented by using proper welding techniques and equipment.

Corrosion resistance

Both grades of aluminium have good corrosion resistance, but 6082 has better corrosion resistance compared to 6063. 6082 is often used in marine applications due to its resistance to saltwater and other harsh environmental factors.


Cost is an important factor when choosing between Aluminium 6082 and 6063. 6082 is typically more expensive than 6063 due to its higher strength and better corrosion resistance.


In conclusion, the choice between Aluminium 6082 and 6063 depends on the specific application of the aluminium. If you need high strength and toughness, go for 6082. If aesthetics and ease of extrusion are important, then 6063 is the better option. Additionally, if you need to use aluminium in harsh environments like marine applications, 6082 is the best choice due to its superior corrosion resistance. Ultimately, it’s essential to weigh the pros and cons of each option before choosing one to ensure the success of your project.



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