Galvanized sheet is no stranger to everyone, but many owners do not know what is hot-dip and cold-rolled. In fact, the materials of these two types of steel plates are the same, but they are turned into two different plates through different processing methods. The processing methods of hot-dip galvanized steel plates are more complicated, the use range is wider, and the price is relatively higher. So, what are the types of hot-dip galvanized steel? What are the disadvantages of hot-dip galvanized steel? Let's take a brief look with Galvanized Steel Sheet Manufacturer.
What are the types of hot-dip galvanized steel sheet?
Hot-dip galvanized steel can be divided into three types: thin steel plate, thick steel plate, and extra-thick steel plate. The steel plate has many functions. It can be used as roof panels, packaging boxes, automobile shells, and various mechanical parts.
a. Hot-rolled coil is a steel billet that is heated. After being processed through various links, the thickness of the hot-rolled steel sheet is between 2mm and 13.5mm. Generally, the price of coils will be cheaper than flat sheets.
b. The raw materials of Cold Rolled Steel Coil are the same as those of hot rolled coils. The process of knowledge processing is different. Cold rolled coils are repeatedly cold-rolled, pickled and cold-rolled. The scope of use of this steel plate is relatively small, and the price will be cheaper than that of hot rolled.
Galvanized Steel Sheet
c. Galvanized Steel Sheet, as its name implies, is coated with a layer of metal zinc on the surface of the steel sheet. The purpose of this is to prevent the surface of the steel sheet from being corroded and increase its service life. Galvanized steel sheet can be divided into hot-dip galvanized steel sheet, alloyed galvanized steel sheet, electro-galvanized steel sheet, printed coated galvanized steel sheet, single-sided and double-sided galvanized steel sheet, alloy, and composite plating according to different processing methods. Zinc steel sheet, color galvanized steel sheet, and polyvinyl chloride laminated galvanized steel sheet.
d. Color-coated steel coils are made of galvanized steel coils, which are sprayed with paint repeatedly, and then go through complicated processing procedures. There are many colors of this kind of coil, the more commonly used are yellow, blue, red and white. Because of its moderate price, it is widely used as wall and roof.
The above is about the types of hot-dip galvanized steel sheet, I hope to help everyone.