The 7075 aluminum alloy (also known as aircraft aluminum or aerospace aluminum) was the first alloy of high strength composed by Al-Zn-Mg-Cu that was able to successfully combine the perks of the inclusion of chromium to develop high stress-corrosion cracking resistance in sheet products.

The hardness of aluminum alloy 7075 t6 plate is 150HB, which is a high-hardness aluminum alloy. 7075T6 aluminum alloy plate is a precision machined aluminum plate and one of the most commercially available aluminum alloys. The main alloying element of the 7075 aluminum alloy series is zinc, which has strong strength, good mechanical properties, and anode reaction.

Disadvantages of 7075-T6 Aluminium

The 7075 aluminum alloys represent a solid standard for great materials with a very convenient combination of properties for most jobs. However, they do have a few drawbacks that may be important to consider:

When compared to other aluminium alloys, the 7075 has a lower resistance to corrosion. If an enhanced stress-corrosion cracking resistance is desired, the 7075-T7351 aluminum might be a more suitable selection than the 7075-T6.

Despite having good machinability, its ductility is still the lowest when compared to other 7000-series alloys.

Its cost is relatively high, which limits its use.