The galvanized steel plate is composed of aluminum-zinc alloy structure, which is composed of 55% aluminum, 43.4% zinc and 1.6% silicon solidified at a high temperature of 600 ° C. The entire structure is composed of aluminum-iron-silicon-zinc, forming a dense quaternary crystal an alloy.

• Definition

Galvalume is an important alloy material that is often used in daily life.

• Feature

Galvalume-galvanized steel sheet has many excellent characteristics: strong corrosion resistance, which is three times that of pure galvanized sheet; the surface has beautiful spangles, and can be used as a building exterior panel.

1. Corrosion resistance

The corrosion resistance of "galvalume steel coil" is mainly due to the protective function of aluminum. When the zinc is worn away, the aluminum forms a dense layer of aluminum oxide, which prevents the corrosion-resistant substances from further corroding the interior.

2. Heat resistance

Aluminum-zinc alloy steel sheet has good heat resistance and can withstand high temperatures of more than 300 degrees Celsius, which is similar to the high-temperature oxidation resistance of aluminum-coated steel sheets. It is often used in

Chimney pipes, ovens, luminaires and shades for fluorescent lamps.

3. Heat reflectivity

The heat reflectance of galvanized steel sheet is very high, which is twice that of galvanized steel sheet, and people often use it as a heat insulation material.

4. Economy

Because the density of 55% AL-Zn is smaller than that of Zn, the area of galvanized steel sheet is more than 3% larger than that of galvanized steel sheet when the weight is the same and the thickness of the gold plating layer is the same.

• Application

1.Construction:  roofs, walls, garages, acoustic walls, pipes and prefabricated houses, etc.

2.Automotive:  mufflers, exhaust pipes, wiper accessories, fuel tanks, truck boxes, etc.

3.Home appliances:  refrigerator back panel, gas stove, air conditioner, electronic microwave oven, LCD frame, CRT explosion-proof belt, LED backlight, electrical cabinet, etc.

4.Agricultural use:  pig houses, chicken houses, granaries, greenhouse pipes, etc.

5.Others:  thermal insulation cover, heat exchanger, dryer, water heater, etc.