Super tips on using Galvanized steel
Galvanization is considered to be the process of applying a protective zinc coating to steel, this method helps to prevent rusting in the long run. The most common method in sheet metal fabrication shops is hot-dip galvanizing, by which parts are submerged in a bath of molten zinc.
Hot-dipping galvanizing deposits a thick and robust layer of zinc iron alloys on the surface of steel which provides a protective layer.
This protection occurs in three different ways:
- The zinc coating, when intact, prevents corrosive substances from reaching the underlying steel or iron.
- It acts as a sacrificial terminal, which is the main component of a galvanic cathodic protection (CP) system used to protect buried or submerged metal from corrosion. This means that if the coating is scratched, the exposed steel or iron will be protected by the remaining zinc.
- The zinc protects its base metal by corroding before iron.