The key is in the coating: Multilayered coating to improve the corrosion resistance of steel
The strength of steel makes it one of the most robust materials known to man. When galvanized with zinc (Zn), it becomes more resistant to corrosion. This makes it an economical choice to use in construction and infrastructure. In the last decade, Zn reserves have fallen appreciably, forcing us to switch to using Zn alloys. Magnesium (Mg) is the most commonly used alloy mineral, and when used in small amounts it can improve the corrosive resistance of Zn.