Difference between aircraft aluminium sheet and ordinary aluminium sheet for sale haomei

What is the difference between aircraft aluminium sheet and ordinary aluminium sheet? Aviation aluminium sheets and aerospace aluminum sheets are generally referred to as 7 series aluminium sheets. Ordinary aluminium sheets are used in our daily life and are generally 6 series aluminium alloy sheets. Most of the aluminium sheets for construction and industrial use are ordinary 1 to 6 series aluminium alloy sheets. What is the difference between aerospace aluminium sheets and ordinary aluminium sheets?

First of all, the biggest difference between aerospace aluminium plates and ordinary aluminium plates is the mechanical properties. 7 series aluminium alloys have the highest hardness value among all aluminium alloys and are therefore suitable for aerospace applications. The 6 series aluminium alloy has medium hardness, which can basically meet the needs of production and life. The second difference is the difference in cost between aerospace aluminium alloy sheets and ordinary aluminium sheets. The higher the hardness of the aluminium sheet, the more difficult it is to shape, so the cost of a 7 series aluminium alloy sheet is very high. Our common 6 series aluminium alloy (most commonly used 6063, 6061, etc.) has medium hardness, easy to extrude and low production cost. The third difference is that aircraft aluminium plates cannot be welded and can only be joined by other methods. Ordinary aluminium sheets for construction and industrial aluminium profiles can be welded, so the application area is much wider. The fourth difference is that the 7 series aluminium alloy has very poor corrosion resistance, so the surface must be treated with a special process, which increases the cost. The common 6 series aluminium alloy has a certain degree of corrosion resistance, and if the surface is anodised, it can greatly improve the corrosion resistance.

To sum up, aerospace aluminium alloys differ greatly from ordinary aluminium alloys in terms of hardness, cost, welding methods and corrosion resistance, so both are used in different applications. Ordinary aluminium alloy sheets have many properties and are used in a wide range of applications. Aerospace aluminium sheets have an advantage in terms of hardness and are therefore generally used in the aviation sector. If you want to buy aerospace sheets, contact us at Hormel! We produce and sell first class aerospace and marine aluminium sheets!