Galvalume steel coil is also known as Al-Zn coated steel coil. It is a carbon steel sheet coated with aluminum-zinc alloy through a continuous hot-dip process. The typical coating composition is 55% aluminum, 43.5% zinc and 1.5% silicon. This coating combines the superior corrosion resistance of aluminum and the galvanic protection of zinc.
Due to this unique alloy coating, Galvalume steel coil has excellent corrosion resistance, heat resistance, weather resistance and long service life. It can last 25-30 years without significant color fading or perforation. This superior durability makes it ideal for outdoor roofing and wall applications with harsh environments like industrial buildings, warehouses, barns, etc.
In addition to excellent anti-corrosion properties, Galvalume steel coil also has a bright and uniform spangle, as well as good paintability and formability. It can be painted in many colors to match different architectural styles. And it can also be cold-formed into different profiles according to specific needs.
Galvalume steel coil is produced through strict quality controls and testing. Key properties like coating weight, hardness, adhesion, surface finish and dimensional accuracy are carefully checked to ensure they meet relevant industry standards and customer requirements. Regular inspections are also implemented to guarantee product quality and consistency.
With unique properties and multiple advantages, Galvalume steel coil serves as an ideal building material for modern construction projects. It creates architecturally attractive and high-performance roofs/walls at a lower overall cost. The increasing application of Galvalume products is a result of growing awareness regarding their superior qualities of low maintenance, sustainability and cost effectiveness.
Compared with ordinary galvanized steel, Galvalume steel coil has superior performance and longer service life, though the initial cost is slightly higher. But its outstanding durability can save the cost of frequent maintenance, repair and replacement, making it a more cost-efficient choice in the long run. This advanced product is creating new opportunities across the world.
Galvalume metal
