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Common Material of Cold Rolled Plate

Mar. 02, 2020

Cold-rolled sheet has good performance, that is, cold-rolled strip and steel sheet with thinner thickness and higher accuracy can be obtained through cold rolling, with high flatness, high surface finish, clean and bright cold-rolled sheet surface, easy to be coated There are many types of processing and variety, and a wide range of uses. At the same time, it has the characteristics of high stamping performance, no aging, and low yield point. Therefore, cold-rolled sheet has a wide range of uses, mainly used in automobiles, printed iron drums, construction, building materials, bicycles and other industries. It is also the best choice for the production of organic coated steel plates. Today Cold Rolled Steel Sheet Supplier introduces the common materials of cold rolled sheet.


Cold rolled sheet has the following advantages:

1. Higher precision, the thickness difference of cold-rolled strip is not more than 0.01 ~ 0.03mm.

2, the size is thinner, the thinnest cold-rolled can be rolled 0.001mm steel strip; hot-rolled now the thinnest can reach 0.78mm.

3. The surface quality is better. The cold-rolled steel sheet can even produce a mirror surface; while the surface of the hot-rolled sheet has defects such as iron oxide scale and pits.

4. The cold-rolled sheet can be adjusted in accordance with user requirements such as mechanical properties such as tensile strength and process properties such as stamping performance.


Hot Dipped Galvanized Steel Sheet. The steel sheet is immersed in a molten zinc bath, and a layer of zinc steel sheet is adhered to the surface. At present, it is mainly produced by continuous galvanizing process, that is, the rolled steel sheet is continuously immersed in a molten zinc plating bath to make cold-rolled steel sheet.\


Hot Dipped Galvanized Steel Sheet


Hot Dipped Galvanized Steel Sheet


② Knowledge of alloyed cold rolled steel sheet. This steel sheet is also manufactured by the hot-dip method, but immediately after it is out of the tank, it is heated to about 500 ° C to form an alloy coating of zinc and iron. This galvanized sheet has good paint adhesion and weldability.


③ Knowledge of electric cold rolled steel sheet. Knowledge of manufacturing such cold-rolled steel plates by electroplating has good workability. But the coating is thin and the corrosion resistance is not as good as the hot-dip galvanized sheet.


④ Knowledge of single-sided plating and double-sided differential cold-rolled steel sheet. Knowledge of single-sided cold-rolled steel sheet, that is, products that are galvanized on only one side. In welding, painting, anti-rust treatment, processing, etc., it has better adaptability than double-sided galvanized sheet. In order to overcome the shortcomings of uncoated zinc on one side, there is another type of galvanized sheet coated with a thin layer of zinc on the other side, that is, double-sided differential galvanized sheet.


⑤ Knowledge of alloy and composite cold-rolled steel plate. It is made of zinc and other metals such as lead, zinc, and even plated steel. This steel plate has both excellent rust prevention performance and good coating performance.


In addition to the five types mentioned above, there are also colored Cold Rolled Steel Sheet, cold-rolled steel sheet with printed coating, and cold-rolled steel sheet with PVC laminate. But currently the most commonly used is hot-dip galvanized sheet.

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