Aluminum plated carbon steel plate is coated with a layer of pure aluminum or aluminum silicon alloy steel plate containing 5% to 10% silicon on the surface. There are three methods for aluminum plating: hot plating, electrophoresis, and vacuum evaporation, with hot plating being the most widely used. Aluminum plated plates have good high-temperature oxidation resistance, do not change color for a long time at 450 ℃, and can be used at a maximum temperature of 750 ℃. It also has good atmospheric corrosion resistance, especially resistance to gases such as SO2, H2S, CO2, etc. The corrosion resistance is 3-6 times that of galvanized steel plate, mainly used in automotive exhaust systems, heat-resistant appliances, beverage cans, etc.

There are two types of aluminum plated plates: one is called Class 1, which is mainly heat-resistant and can withstand high temperatures of around 640 ℃. This type of aluminum plated steel plate is a low-carbon steel plate coated with 20-25 microns thick aluminum silicon alloy (containing 6-8.5% silicon). Another type is called Class 2, mainly corrosion-resistant, with a coating thickness 2-3 times that of Class 1. Regardless of the type, the coating is formed by hot dip coating. Therefore, a thin alloy layer is formed between the base metal and coating of low-carbon steel plates. Category 1 forms an aluminum iron silicon alloy layer, while category 2 forms an aluminum iron alloy layer. Compared with Class 1, Class 2 has lower melting point, thicker coating, and poorer weldability.

Aluminum plated plate is a combination of iron and aluminum, which are two widely used metals in our daily lives. This type of steel plate can fully utilize the characteristics of two metals to form a steel plate with special properties. This type of steel plate is increasingly favored by people due to its unique properties such as good corrosion resistance, heat resistance, and thermal radiation. Aluminum plated plates are used in environments with thermal radiation, acidity, condensation, and atmospheric corrosion, and have good corrosion resistance. In rural areas, industrial cities, and marine areas, the service life of outdoor aluminum plated steel plate components is 2-5 times that of aluminum plated plate components, which is particularly suitable for resisting SO2 and H2S corrosion.