Difference between aluminized zinc steel plate and galvanized steel plate

define

Galvanized steel plate is welded steel plate with hot dip plating or electric galvanized layer on the surface. It is generally widely used in construction, household appliances, vehicles and ships, container manufacturing, machinery and electrical industry, etc. Galvanized steel plate is divided into ordinary electrolytic plate and fingerprint resistant electrolytic plate.

Aluminized zinc steel plate is a kind of multiphase alloy material containing rich aluminum and zinc. The surface of aluminized zinc steel plate is unique smooth, flat and gorgeous star flower, the base color is silver white. The special coating structure makes it have excellent corrosion resistance.

distinction

1. Different coating

The coating surface of galvanized steel plate is evenly distributed with a layer of zinc material, which plays an anodic protection role for the base metal. In other words, the alternative corrosion of zinc material protects the use of the base metal. Only when all zinc corrosion is finished can the base metal inside be harmed.

The coating of aluminized zinc plate is composed of 55% aluminum, 43.5% zinc and a small amount of other elements. Aluminum zinc plating coating has anodic protection role, but on the other hand due to the shrinking of zinc content on the one hand, because of the zinc material by aluminum bag not the role of electrolysis anode protection so greatly reduced, so once the aluminium zinc plate is cut, the cut off the edge of the protection of basic loss was will soon be under the condition of corrosion, so aluminium zinc plate should be cut less as far as possible.

2. Different features

Corrosion resistance: the corrosion resistance of aluminum and zinc plated steel plate is better than that of galvanized steel plate. It can be used as a variety of internal and external building materials and parts in a full range.

Good economy: lower production cost than galvanized and aluminized sheet.

Thermal reflectance: The thermal reflectance of aluminized zinc steel plate is very high, which is twice that of galvanized steel plate. People often use it to do heat insulation material.

3. Service life

The special coating structure of aluminized steel plate makes it have excellent corrosion resistance. The normal service life of aluminized zinc plate is 2-6 times that of ordinary galvanized steel plate.

4. Different uses

Aluminized zinc plate is mainly used in construction, automobile, household appliances and so on.

Galvanized steel plate is mainly used in construction, light industry, agriculture and fishery.