GI Coils

Listing ID #3647436

Galvanised Coils are mainly prepared through two specific processes namely, Continuous Hot Dipping and Electro-Galvanisation. Continuous Hot Dipping is a process by which steel is repeatedly passed through a bath of molten zinc. In Electro Galvanisation, electrolytic disposition takes places and zinc application is performed. The finished product is a base metal with a tightly adhering layer of zinc achieved through Iron-Zinc bonding. The Galvanised Zinc layer on top of the sheet of steel protects the metal against environmental degradation through a sacrificial protection process. This sacrificial protection is possible because two dissimilar metals are in contact with each other and are coupled to be exposed with Water and Oxygen.