Will the aluminum plate oxidize?

Many buyers will question whether the aluminum plate will oxidize? Then we will tell you the answer first - aluminum will oxidize, but our regular aluminum plate will hardly oxidize. And some materials called alumina plates or anodized aluminum are processed by a special process.

Let us first understand the natural oxidation of aluminum. After the aluminum plate is oxidized, aluminum oxide will be formed. This is an inorganic substance with a chemical formula of Al2O3. It is a high-hardness compound with a melting point of 2054°C and a boiling point of 2980°C. It is an ionized crystal that can be ionized at high temperatures and is often used in the manufacture of refractory materials. However, in ordinary use, aluminum plate is not easy to be oxidized. Although aluminum is an active metal, the surface of the aluminum plate will be oxidized to form a dense oxide film. In this case, it is not easy for oxygen to contact the metal aluminum inside, and it will no longer be oxidized, which is regarded as a self-protection of aluminum. Do not wipe off the oxide film because the surface of the aluminum plate is a little dirty (the oxide film is relatively hard and can be removed with a steel ball or a toilet cleaner) so that it will not oxidize again. As for the current acid rain, or the high content of sulfur dioxide in the air, it will have a certain impact on aluminum products, but this must be protected by a protector.

As for aluminum oxides such as industrial alumina and anodized aluminum sheets, these are manufactured through specialized processes. For example, industrial alumina is prepared from bauxite (Al2O3·3H2O) and diaspore. For Al2O3 with high purity requirements, it is generally prepared by chemical methods. There are many isomorphous crystals of Al2O3, more than 10 kinds are known, and there are mainly 3 crystal forms, namely α-Al2O3, β-Al2O3, γ-Al2O3. Among them, the structure is different and the properties are also different, and it is almost completely converted into α-Al2O3 at high temperatures above 1300 °C. And the anodized aluminum plate is carried out by solution or other means.

So this is basically the answer to whether the aluminum plate will oxidize. If you want to buy aluminum sheets, please contact Haomei, the professional and experienced aluminum plate manufacturer and supplier, at:

E-mail: sale@alusuppliers.com

1103, No.14 Waihuan Road, CBD, Zhengzhou, China