How to Distinguish 7075 and 6061 Aluminum Strips?

Different ingredients:

Zinc is the main alloying element in 7075 aluminum alloy, accounting for up to 6%. In addition, it also contains high levels of magnesium and copper elements.

The main components of 6061 aluminum alloy are magnesium and silicon, while the composition of zinc is relatively low. Meanwhile, it also contains a certain amount of copper and iron elements, but compared to 7075, its trace element content is generally lower.

Mechanical properties:

The mechanical properties, including strength and hardness, of 7075 aluminum alloy are much higher than those of 6061. This makes 7075 more suitable for certain applications that require high strength and hardness.

Although 6061 aluminum alloy has low strength and hardness, it has good cutting and welding properties. It can also improve strength through heat treatment and other methods, and reduce weight by pulling pipes. Therefore, in certain situations where welding performance is required, 6061 is more suitable.

耐食性：

The corrosion resistance of 6061 aluminum alloy is slightly better than 7075. This is mainly attributed to the silicon element in 6061, which helps to form a dense oxide film and protects the aluminum material from corrosion.

Price:

The price of 6061 aluminum alloy is relatively moderate, making it a cost-effective material. Due to the advantages in composition and performance, the price of 7075 aluminum alloy is usually much higher than that of 6061.

In summary, there are significant differences between 7075 and 6061 aluminum alloys in terms of composition, mechanical properties, corrosion resistance, and price. The choice of aluminum alloy mainly depends on specific application requirements and budget considerations.