At present, prime hot dipped galvanized steel coils (gi steel sheet coil) is more and more popular. To get hot dip galvanized prepainted steel coil, severel process needs to be done. In order to prevent corrosion and prolong service life of prime hot dipped galvanized steel coils, steel plate is coated with a layer of metal zinc, which is called a galvanized plate. Hot dip galvanization of hot dipped galvanized sheet metal(hdg steel)is the reaction of molten metal with an iron substrate to produce an alloy layer, thereby combining the substrate and the plating layer. Hot-dip galvanizing is to pickle iron and steel parts first. In order to remove iron oxide on the surface of iron and steel parts, after pickling, after pickling hot dipped galvanized steel sheet in coils. Due to the different treatment methods in the coating process, the surface state of the galvanized hot dipped steel sheet is also different, such as ordinary zinc flower, fine zinc flower, flat zinc flower, no zinc flower, etc. The pre coated gi sheet price is generally higher than the price of gi sheet, so is products of hot dip galvanized prepainted steel coil.
Types Of Hot-dip Galvanized Steel (GI)
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Big Spangle Galvanized Steel
Normal zinc Spangle (commonly known as ordinary zinc spangle, large zinc spangle) hot dip galvanised steel coil is the basic variety of hotdip galvanized steel strip (plate).View More -
Small Spangle Galvanized Steel
It is required to control the solidification process of the zinc layer to obtain relatively uniform and fine zinc flowers, but visible to the naked eye. All types of the HDG hot dip galvanized steel coils are making procedure and function are the same, only appearance difference.View More -
Zero Spangle Galvanized Steel
Small zinc flowers invisible to the naked eye were obtained by means of control.Different customer preferences, different markets, and different uses determine different zinc flowers.View More