Introduction
Metal sheets play a crucial role in ensuring durability, strength, and resistance in the world of construction and manufacturing. Among the most sought-after metal sheets, Aluzinc, Zincalume and Galvalume are different trade names of one product of metal sheet. This type of metal sheet is cold rolled galvanized steel with metal coating composed of Aluminium (55%), Zinc (43.4%) and Silicon (1.6%). It is formable, weldable and readily accepts paint finishes.
Thanks to the high content of aluminium, an aluminium-zinc coated sheet is able to withstand high temperatures without discoloration, and its light-reflective appearance makes it suitable for,e.g., roof coverings. Aluminium-zinc coated sheet is available in thicknesses of 0.3 to 2.0 mm.
This blog post will explore the world of Aluzinc/Galvalume/Zincalume Steel Sheets.
Properties of Aluzinc/Galvalume/Zincalume Steel Sheets
- Corrosion Resistance: The combination of aluminum and zinc creates a protective layer that enhances the longevity of the sheet, preventing rust and degradation.
- Lightweight and Flexible: Easier to transport and install compared to other metal sheets.
- Heat Reflectivity: Aluzinc metal sheet reflects heat efficiently, making it suitable for roofing applications in hot climates.
- Durability: It is stronger than traditional galvanized steel, offering better resistance to environmental wear and tear.
- Aesthetic Appeal: Aluzinc sheets have a shiny, smooth surface that makes them visually appealing.
- Cost-Effectiveness: Compared to stainless steel, Aluzinc is more affordable while still providing excellent performance.
- Sustainability: 100% recyclable and environmentally friendly.
Aluzinc corrugated sheeting
Aluzinc corrugated sheet is made of hot-dipped galvalume steel coil, by rolling into a variety of corrugated sheets, the hardness of steel plate material is G550(≧HRB85). And the diagonal lines are same and equal for each sheet. The thickness, width and numbers of wave peaks and valleys are very strictly exact and confirmed by the manufacturer for every order. During the installation, there is much less connection area with no gap.
Applications of Aluzinc/Galvalume/Zincalume Steel Sheets
- Roofing and Cladding: Due to its weather resistance, Aluzinc corrugated sheeting is a preferred choice for roofing materials.
- Automotive Industry: Used in vehicle body parts for its lightweight and anti-corrosive properties.
- Construction: Utilized in structural components, warehouses, and industrial buildings.
- Home Appliances: Found in washing machines, refrigerators, and ovens.
- Agriculture: Used for grain silos and animal enclosures due to its longevity.
- Commercial and Residential Roofing: Flat Zincalume Steel Sheets and Zincalume IBR sheeting are widely used in modern roofing systems.
- Water Tanks and Guttering: Due to its resistance to rust and corrosion.
- Solar Panel Mounting Structures: Its durability ensures a long-lasting framework for solar panel installations.
- Fencing and Gates: Used in perimeter fencing for industrial and residential properties.
Available Aluzinc/Galvalume/Zincalume Steel Sheets Sizes
Zincalume steel sheets sizes vary depending on the manufacturer and application. Common sizes include:
Thickness: 0.3mm to 1.2mm
Width: 600mm to 1250mm
Length: Customizable up to 12 meters
Advantages of Aluzinc/Galvalume/Zincalume Steel Sheets
- Aluzinc Steel/Galvalume metal /Zincalume steel sheets is commonly used in the insulation and ventilation industries. Providing a more effective solution at a lower cost, Aluzinc shows many clear advantages over ordinary aluminium steel.
- It comes with a thin and very effective fingerprint-free coating that offers a double benefit. It enhances the temporary protection of the metal during storage and transport, acts as a dry lubricant and improves its deep impact properties.
- As a good substrate for organic coatings, Aluzinc also allows direct application of paint without time-consuming preliminary treatment.
- When all these qualities are added to the fact that Aluzinc is easy to shape and weld but guarantees a long service life, it is clear that metal is the natural choice for all kinds of insulation, guttering, fencing, roofing and metal sheathing requirements.
Transport, handling and storage of Aluzinc/Galvalume/Zincalume Steel Sheets
Black rust
The protective oxide film that forms on the surface of Aluzinc during open exposure to the atmosphere gives the material a very long useful life in air. If water or moisture penetrates between tightly packed products, like gutters, rapid corrosion will take place.
Due to the limited access to oxygen, the oxide film will not re-form sufficiently quickly, and corrosion attack will occur. In this case, the products of corrosion will be black and are known as black rust. Black rust is normally very thin and does not affect the anti-corrosion properties of the coating, and is only an aesthetic blemish.
SPT (surface protection treatment)
SPT treatment provides excellent protection against fingerprinting during handling of the products. Enhanced anti-corrosion protection SPT also provides enhanced anti corrosion protection during transport and storage. The protection against discoloration on contact with stagnant water is substantially improved.
The SPT coating does not have a significant effect on the technical useful life of the products, but it provides a finer surface over a longer period of time.
Final Thoughts
Finally, we can sum up that Aluzinc/Galvalume/Zincalume steel sheets have a distinctive smooth, flat, and lustrous star-pattern surface with a silver-white base color. The unique coating structure provides excellent corrosion resistance. These sheets can last up to 25 years under normal use conditions and offer good heat resistance, capable of withstanding temperatures up to 315°C.
They also exhibit strong adhesion between the coating and paint layers, along with good process-ability, allowing for operations like stamping, cutting, and welding. Additionally, they possess excellent surface conductivity.
Qingdao witop steel group have reliable and stable quality, reasonable price, fast delivery time and 20-year exporting experiences of steel products. Company’s one Galvalume Production Line is with Annual Capacity of 80,000 Tons. Our expert team is always available at your service.
