Classification of Galvanized Steel Sheet

　　① Hot-dip galvanised steel.

　　The thin steel plate is dipped into a molten zinc bath, so that a thin steel plate with a layer of zinc adheres to the surface. At present, the main use of continuous galvanizing process production, that is, after the rolling of the steel plate continuously immersed in the zinc-containing liquid galvanizing tank, made of galvanized steel.

　　② Alloy galvanised steel sheet.

　　This Galvanized Steel Sheet is also manufactured using the hot dipping method, but is heated to approximately 500°C immediately after discharge from the tank to form an alloyed film of zinc and iron. This type of galvanised steel has good coating adhesion and weldability.

　　③Electro-galvanised steel sheet.

　　Galvanized Steel Sheet produced by the electroplating method have good processing properties. However, the coating is thinner and less resistant to corrosion than hot-dipped galvanised sheets.

　　④ Single-sided and double-sided differential galvanised steel sheets.

　　Single-sided galvanised steel sheet is a product that is galvanised on one side only. It has better adaptability than double-sided galvanised sheet in terms of welding, painting, rust-proof treatment and processing.

　　⑤ Alloy and composite galvanised sheet steel.

　　To overcome the disadvantage of one side not being galvanised, there is another layer of Galvanized Steel Sheet on the other side, i.e. double-sided differential galvanised sheet.

　　It is made from zinc and other metals such as aluminium, lead and zinc and is used to manufacture alloy or even composite coated steel sheets. This type of steel sheet has not only excellent rust protection properties but also good coating properties.

　　In addition to the five types mentioned above, there are also coloured Galvanized Steel Sheet, printed and coated galvanised steel sheets, PVC laminated galvanised steel sheets, etc., but the most commonly used at present is still hot-dipped galvanised steel sheets.