After the creation of a zinc coating on the steel surface, galvannealed flat steels are produced by converting the interfacial coating into a zinc-iron alloy layer through induction heating.
This coating process, aimed at preventing corrosion and extending the material's lifespan in open atmospheric conditions, results in galvanized materials, which are especially important inputs for the automotive industry and sectors dealing with exterior surface coating.
Galvanized/galvannealed steels are passivated through chromating and/or oiling to protect the zinc coating on the surface. The surface qualities of galvanized materials are produced in three different grades—A, B, and C—based on international standards.