Hot Dipped Galvalume Coil

Hot dipped Galvalume Coil is a highly corrosion-resistant material. It is made of cold-rolled steel and coated with a coating consisting of 55% aluminum, 43.3% zinc, and 1.6% silicon. It is also known as galvanized steel. Galvalume steel is more durable and long-lasting than galvanized steel and is a common material for outdoor roofing or siding, chimney breasts, color-coated steel substrates, etc.

 

 

With corrosion resistance three times that of pure galvanized sheet, high temperature resistance exceeding 300°C, and doubled thermal reflectivity, this aluminum-zinc alloy material empowers eight major fields, including construction, home appliances, and automobiles, with its outstanding performance. Its quaternary crystal structure forms a natural protective shield, and its industrial strength is forged in a 600°C hot-dip coating process, providing antioxidant steel armor for more than 30 types of equipment worldwide.

The production process for galvanized steel coils requires numerous meticulous steps. First, the steel coil undergoes surface treatment, including degreasing and rust removal, to ensure a clean, smooth surface, paving the way for subsequent coating adhesion. The treated steel coil then enters a pretreatment tank for pickling and phosphating, forming a protective zinc-iron alloy layer and further enhancing coating adhesion. Next, an aluminum-zinc alloy coating solution is prepared according to a specific formula. The pretreated steel coil is then immersed in a hot-dip bath. Under precisely controlled temperatures, the aluminum-zinc alloy coating forms a uniform coating. After hot-dip coating, the coil is cooled to solidify and form a complete protective layer. Finally, post-processing steps include coating with an anti-corrosion agent, cleaning, and drying. The finished product undergoes rigorous inspection, including visual inspection, coating thickness measurement, and adhesion testing. Only qualified products are packaged and shipped.

Hot dipped Galvalume coil has a wide range of applications. In the construction industry, it's an excellent choice for roofing and walling materials. Metal roofing and wall panels, for example, offer excellent weather resistance, effectively resisting natural damage like wind, rain, and UV rays. Their diverse surface finishes also cater to diverse architectural styles. Galvalume coil also proves effective in the manufacture of decorative architectural components like doors, windows, railings, and stair railings, lending buildings a unique appearance and design.

In the home appliance industry, galvalume coil is commonly used in the manufacture of housings and components for appliances like refrigerators, air conditioners, and washing machines. Its corrosion and wear resistance not only protects the internal structure of appliances, extending their lifespan, but also enhances their aesthetic quality.

In the automotive industry, galvalume coil is used in the manufacture of vehicle body panels, doors, hoods, and other automotive components. Its excellent weather and corrosion resistance helps extend the vehicle's overall lifespan and enhances its long-lasting aesthetics.

In the transportation sector, galvalume coil is also used in the manufacture of railway vehicles, ships, bridges, and other facilities. Its weather and corrosion resistance effectively withstands complex outdoor environments, reducing maintenance costs and extending the lifespan of equipment.

In agricultural equipment manufacturing, galvanized steel coils are often used in the housings and components of agricultural vehicles and implements. This is because they provide excellent corrosion and wear resistance in the complex agricultural production environment.

In the manufacturing of housings and components for industrial equipment, such as pressure vessels, pipelines, and conveying equipment, the corrosion and wear resistance of galvanized steel coils effectively extend the service life of equipment and ensure stable operation.

With the continuous advancement of technology and the continuous upgrading of industrial needs, galvanized steel coils are expected to further optimize their production processes in the future, achieving more efficient and environmentally friendly production. In terms of performance, key indicators such as corrosion resistance and strength are expected to achieve new breakthroughs. Their application areas will also continue to expand into more emerging industries, injecting new vitality into promoting high-quality development in various industries.

1. Excellent corrosion resistance

The corrosion resistance of galvanized steel is mainly due to the protection of aluminum. When zinc is worn, aluminum forms a dense aluminum oxide layer to prevent corrosive substances from further corroding the interior.

2. Excellent heat resistance

The heat reflectivity of galvanized steel is very high, twice that of ordinary galvanized steel. It has good heat resistance and can withstand high temperatures above 300 degrees Celsius. Therefore, it is often used in chimney pipes, ovens, lighting, lampshades, etc.

3. Good adhesion

The galvanized steel has excellent adhesion to the paint. Therefore, it can be painted without pretreatment and weathering.

4. Beautiful appearance

The surface of galvanized steel is smooth, bright and uniform, which is more beautiful than galvanized steel. Therefore, it can be used directly as a roofing sheet. Galvanized steel looks bright and shiny.

Q: Are you trading company or manufacturer ?

A: We are professional manufacturer with 20 years' experience, and our company also is a very professional a trade company for steel products.We can also provide a wide range of steel products.

Q: Will you delivery the goods on time?

A: Yes,we promise to deliver on time,indemnity clause in contract terms will work if we couldn't.

Q: Do you provide samples ? Is it free or extra ?

A: The samples are free,you just need to pay the courier freight.

Q: Do you accept the third party inspection?

A: Yes, absolutely we accept.

Q: How could you guarantee your products?

A: Products are manufactured by certified workshops, inspected by professional inspector.

Q: How do we trust your company?

A: We specialist in steel business for many years, authenticated by SGS,welcome to visit our factory.