Galvanized Steel Coils are steel sheets coated with a layer of zinc on the surface, primarily used to prevent corrosion of the steel sheet surface and extend its service life.GI Steel Coil haveadvantages such as strong corrosion resistance, good surface quality, favorable for further processing, and economic practicality. They are widely used in construction, home appliances, automobiles, containers, transportation, and home industries, especially in industries such as steel structure buildings, automobile manufacturing, and steel silo manufacturing. The thickness of galvanized steel coils generally ranges from 0.4 to 3.2 mm, with a thickness deviation of about 0.05 mm and a length and width deviation of generally 5 mm.
Galvanized Steel Coil
Galvalume Steel Coil
Aluminized zinc steel coil is an alloy material made of 55% aluminum, 43% zinc, and 2% silicon solidified at a high temperature of 600°C. It combines the physical protection and high durability of aluminum with the electrochemical protection of zinc. GL steel coil has excellent corrosion resistance, which is three times that of pure galvanized coil, and features a beautiful zinc flower surface, making it suitable for use as an exterior panel in buildings. Its corrosion resistance mainly comes from aluminum, which provides protective functionality. When zinc is worn away, aluminum forms a dense layer of aluminum oxide that prevents further corrosion of internal materials. The thermal reflectivity of aluminized zinc steel coil is very high, double that of galvanized steel plates, and it is often used as insulation material.
Construction industry: Used as covering materials for roofs, walls, ceilings, etc., to ensure buildings remain aesthetically pleasing and durable in harsh environments.
Automotive manufacturing: Used for producing body shells, chassis, doors, and other components, ensuring the safety and durability of vehicles.
Home appliance industry: Used for the exteriors of refrigerators, washing machines, air conditioners, etc., ensuring the aesthetics and durability of home appliances.
Communication equipment: Used for base stations, towers, antennas, etc., ensuring stable operation of communication devices.
Agricultural and industrial equipment: Used for manufacturing tools, greenhouse frames, and other agricultural equipment, as well as oil pipelines, drilling equipment, and other industrial equipment.Galvanized steel coils, due to their excellent corrosion resistance and processing performance, have become an indispensable important material in modern industry.
Construction industry: Aluminum-zinc coated steel coils are widely used in building facades, roofs, ceilings, etc., effectively protecting buildings from natural environmental erosion.
Home appliance industry: Used for the manufacturing of home appliances such as refrigerators and air conditioners, its excellent surface coating and corrosion resistance make the products more aesthetically pleasing and durable.
Automotive industry: Used for the manufacture of automotive parts such as car bodies and doors, its high strength and corrosion resistance can enhance the safety and lifespan of vehicles. The corrosion resistance of aluminum-zinc coated steel coils is primarily due to the protective effect of aluminum. If the zinc wears away, aluminum will form a layer of aluminum oxide, preventing further corrosion of the steel coil. The service life of aluminum-zinc coated steel coils can reach 25 years, and they have excellent heat resistance, suitable for use in high-temperature environments up to 315°C.
ROYAL GROUP
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Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
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Sales Manager: +86 153 2001 6383
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Monday-Sunday: 24-hour Service
Post time: Jul-17-2025