This article will let Baowu take you to understand the difference between galvanized sheet and galvalume sheet.

Galvanized sheet refers to a steel sheet plated with a layer of zinc on the surface.

Galvalume steel sheet refers to a steel sheet with a surface coating of 55% aluminum alloy.

Therefore, the surface of the galvanized sheet is all plated with zinc, which has a good protection effect on the material and is not easy to rust. The galvalume sheet, because part of the surface is changed from zinc to aluminum, is prone to oxidation and rust. Therefore, in comparison, the service life of galvanized sheet is longer than that of galvalume sheet.

In addition, what is the difference between the characteristics of galvanized sheet and galvalume sheet?

• Galvanized sheet and galvalume sheet have very good heat resistance, because they are made of materials with relatively high heat resistance temperature, so they will still be well preserved after a relatively high temperature;

• Both galvanized sheet and galvalume sheet have good heat reflectivity. In layman's terms, galvanized sheet and galvalume sheet can reflect heat to isolate heat. However, in comparison, the reflectivity of the galvalume sheet is better than that of the galvanized sheet;

• The density of galvalume sheet is relatively smaller, because its coating is changed from zinc to aluminum, and the density of aluminum is smaller than that of zinc. of small. Therefore, galvalume sheet is more economical and cheaper than galvanized sheet;

• Both galvanized sheet and galvalume sheet are relatively easy to be painted, their adhesion is relatively good, and uneven color is less likely to occur.

All in all, galvanizing and galvalume are to prevent steel from rusting and coating metal on the surface, but the anti-corrosion effect is different, and the economic benefits are also different.

The above is the difference between galvanized and galvalume. If you want to know more, please feel free to pay attention to Baowu.