Blog #wholesale hot rolled steel coil

With the development of hot rolling technology, the quality of wholesale hot rolled steel coil is continuously improved, and the thickness is gradually thinned. The hot rolled coil is used as raw material to produce hot rolled galvanized coil instead of the traditional single coil galvanizing, which not only broadens the hot rolling galvanizing. The use of the board, but also squeezed the market share of hot-dip galvanized coil with the cold-rolled coil as the substrate. Internationally, many people wholesale hot rolled steel coil.

With the advancement of hot rolling technology, especially the thin slab continuous casting and rolling (CSP) technology, the thickness of wholesale hot rolled steel coil is getting thinner and thinner. In recent years, a number of CSP production lines have been built in China, such as Zhugang, Handan Iron and Steel, Baotou Steel, Tangshan Iron and Steel, etc. Maanshan Iron and Steel Co., Ltd. are currently under construction, and the thinnest rolling specifications can reach 0.8mm. The large number of applications of CSP technology objectively provides thinner hot rolled raw materials with better mechanical properties and specifications for the hot rolled plate.

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A. Hot rolled coil is a steel sheet heated by a billet. The thickness of wholesale hot rolled steel coil is between 2 mm and 13.5 mm. Generally, the price of hot rolled coil is cheaper than that of flat plate.

B. The raw materials of cold-rolled coils are the same as those of hot-rolled coils. The process of knowledge processing is different. The high quality cold rolled steel coil china is transformed into coil by repeated cold rolling, pickling and cold rolling. This kind of steel plate has a smaller scope of use and its price is cheaper than that of hot-rolled coils.

C. Galvanized steel coil, as its name implies, is coated with zinc metal on the surface of the steel plate. The main purpose of this is to prevent the surface of the steel plate from being corroded and to increase its service life. Galvanized steel coil can be divided into hot dip galvanized steel coil, high quality cold rolled steel coil china, composite galvanized steel coil and color galvanized steel coil according to different processing methods.

D. The high quality prepainted color galvanized coil is made of galvanized steel coil as the base material, repeatedly spraying paint on the galvanized coil, and then through complex processing procedures. This kind of roll has many colors, such as yellow, blue, red and white teeth. Because of the moderate price, it is widely used as wall and roof.

What are the types of steel coil?

A. Hot rolled coil is a steel sheet heated by a billet. The thickness of wholesale hot rolled steel coil is between 2 mm and 13.5 mm. Generally, the price of hot rolled coil is cheaper than that of flat plate.

B. The raw materials of cold-rolled coils are the same as those of hot-rolled coils. The process of knowledge processing is different. The high quality cold rolled steel coil china is transformed into coil by repeated cold rolling, pickling and cold rolling. This kind of steel plate has a smaller scope of use and its price is cheaper than that of hot-rolled coils.

C. Galvanized Steel Coil made in China, as its name implies, is coated with zinc metal on the surface of the steel plate. The main purpose of this is to prevent the surface of the steel plate from being corroded and to increase its service life. Galvanized sheet coil can be divided into hot dip galvanized steel sheet, galvanized steel sheet, composite galvanized steel sheet and color galvanized steel sheet according to different processing methods.

D. The high quality prepainted color galvanized coil is made of galvanized sheet coil as the base material, repeatedly spraying paint on the galvanized sheet, and then through complex processing procedures. This kind of roll has many colors, such as yellow, blue, red and white teeth. Because of the moderate price, it is widely used as wall and roof.