hot dip galvanised iron
Hot dip galvanized iron represents a cutting-edge metal protection process where iron or steel components are immersed in molten zinc at temperatures around 450°C. This process creates a metallurgically bonded coating that offers superior corrosion resistance and durability. The zinc coating forms multiple layers, with the outermost layer consisting of pure zinc while the inner layers comprise zinc-iron alloys. This multilayer protection system ensures comprehensive shield against environmental factors, making the material ideal for both indoor and outdoor applications. The galvanization process penetrates all surfaces, including hard-to-reach areas, providing complete protection against rust and corrosion. The coating thickness can be customized according to specific requirements, typically ranging from 45 to 85 microns for standard applications. The resultant surface is not only corrosion-resistant but also offers excellent mechanical protection, making it suitable for harsh environments. The process also enhances the metal's aesthetic appeal, creating a uniform, bright finish that maintains its appearance over time. This treatment significantly extends the lifespan of iron components, often providing protection for 50 years or more in normal environments.