Galvanized steel is defined as a carbon steel sheet coated with zinc on both sides. There are two main processes used to produce galvanized steel: continuous hot dipping and electro-galvanizing.
A zinc coating is one of the most effective and economical methods of protecting bare steel from a corroding environment. The zinc not only serves as a barrier between the steel and the environment, but it will also sacrifice itself to protect the underlying steel sheet. Sacrificial or galvanic protection occurs when two dissimilar metals are in contact and coupled with water and oxygen. Zinc corrodes preferentially to the iron in steel. This protection prevents corrosion of the steel at areas not covered with zinc. Thus, the spread of corrosion from cut edges, drill holes, etc. is minimized.
Application：Architecture；Household Appliances；Automobile；Industrial Instrument.
Chemical composition and mechanical properties Of PPGI Steel coil：
|Chemical composition of PPGI Steel coil|
|Content||0.22 max||1.60 max||0.05 max||0.05 max||0.05 max|
|Physical properties of PPGI Steel coil|
|Grade||Tensile strength||Yield point||Elongation after breaking||Impact energy Akv20 degrees|
Galvanized Advantages：Metallic glitter appearance without deep spangles border；Not easy color change caused by surface oxidization.
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