Galvalume Steel Coil
Galvalume Steel Coil is also called Aluminum-Zinc Alloy Coated Steel, Zincalume steel, aluminized zinc steel (aluzinc steel), SGLC, The galvalume metal is composed of 55% aluminium, 43.4% zinc and 1.6% silicon solidified at 600 ~C. Its whole structure consists of aluminium-iron-silicon-zinc, forming a compact quaternary crystal alloy. The surface of the galvalume steel sheet is characterized by smooth, flat and gorgeous stars, and its base color is silver white. The special coating structure makes it have excellent corrosion resistance. The normal service life of galvalume steel sheet is up to 25a, and its heat resistance is good. It can be used in high temperature environment at 315 C. The adhesion between coating and paint film is good, and it has good processing performance. It can be punched, sheared and welded. The surface conductivity is very good.
Our Galvalume coils (Al-Zn alloy coating) provide exceptional durability with significantly enhanced corrosion resistance compared to traditional galvanized steel. The unique coating microstructure offers excellent heat reflectivity and oxidation resistance under continuous high-temperature environments. Available in a wide range of coating weights and tensile strength grades, with custom widths and surface treatment options (regular spangle, minimal spangle, chromate passivation). Ideal for roofing, HVAC systems, industrial furnaces, and agricultural equipment.
Our Galvalume coils are produced through continuous hot-dip processing lines featuring computer-controlled coating bath (Al-Zn alloy temperature maintained at ±3°C) and precision gas wiping system (coating weight tolerance ±2g/m²). The integrated production system includes hydrogen atmosphere annealing furnaces, rapid cooling sections, and online surface defect detection. Fully automated control ensures perfect coating uniformity and adherence to international standards, with customized coating composition and special performance requirements available.
In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.
Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.