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2023

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Alu-Zinc Galvalume Steel Coil Introductions

Aluminized Zinc-coated steel coil is a new type of steel plate material, which is made of cold rolled steel coil by hot dip plating. Because of its excellent corrosion resistance, this kind of steel coil is gradually replacing galvanized coil. It is widely used all over the world.


Aluminum zinc plated steel plate is aluminum zinc alloy structure, composed of 55% aluminum, 43.4% zinc and 1.6% silicon solidification at 600℃ high temperature and composition, the whole structure of aluminum - iron - silicon - zinc, forming a dense quaternary crystal of an alloy. Aluminum and zinc plated steel plate has many excellent characteristics: strong corrosion resistance, is 3 times that of pure galvanized sheet; It has a beautiful zinc finish and can be used as an exterior board." The corrosion resistance of alumINized zinc steel coil is mainly due to the protective function of aluminum. As the zinc wears away, the aluminum forms a dense layer of alumina, preventing corrosion resistance from further eroding the interior. Aluminum-zinc alloy steel plate has good heat resistance, can withstand the high temperature of more than 300 degrees Celsius, and aluminum-plated steel plate high temperature oxidation resistance is very similar, often used in chimney pipes, ovens, illuminators and solar lampshades. The thermal reflectance of aluminized zinc steel plate is very high, which is twice that of galvanized steel plate. People often use it as insulation material. Because the density of 55% Al-Zn is smaller than that of Zn, the area of aluminized zinc steel plate is more than 3% larger than that of galvanized steel plate in the case of the same weight and the same thickness of gold plating.
Application fields of aluminized zinc steel coil:
Construction: Roofs, walls, garages, sound walls, pipes and modular houses
Automobile: muffler, exhaust pipe, wiper accessories, fuel tank, truck box, etc
Home appliances: refrigerator backplane, gas stove, air conditioner, electronic microwave oven, LCD frame, CRT explosion-proof belt, LED backlight source, electric cabinet, etc
Agricultural use: pig house, chicken house, granary, greenhouse pipe, etc
Other: heat insulation cover, heat exchanger, dryer, warm water, etc