Metal buildings account for almost half of the low-rise non-residential buildings, and a large number of these buildings use high quality prepainted color galvanized coil plates for roofs and wallboards. The painted steel sheet is a cost-effective and durable product.

In many applications, proper selection of paint systems (pretreatment, primer and finish) can provide galvanized steel roofs and walls with a service life of 20 years or longer. However, in order to achieve this long service life, China PPGI corrugated roofing sheet factory must also consider many other issues, including the nature of the use environment, the thickness and conditions of galvanized steel sheets, and the coating of coated coils. Process and panel design and rolling process. Construction site problems, such as storage and treatment of rolled sheets, architectural design, installation practice and on-site maintenance, also affect the service life of pre-painted metal building components.

Pre-coated galvanized steel sheets have been successfully used for decades under various climatic conditions on roofs and walls.

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.

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