It is mainly produced by continous galvanizing process, that is to say, the rolled steel plate is continously im- mersed in the zinc melting bath to make galvanized steel plate and alloyed galvanized steel sheet. This steel plate is also made by hot dipping.
Galvanized steel is defined as a car- bonsteel sheet coated with zinc on both sides. Zinc coating is one of the most effective and economical meth- od of protecting bare steel from corroding environment.
Galvanized carbon steel plate is an- tirust. Its coating color is silver with high gloss as that of galvanized parts. And it contains zinc and has antirust ability.
Galvanized steel sheet is widely used in construction, engineering vehicles and bridges, in storage containers such as boilers and gas tanks, oil rigs and many offshore equipments.