Cold Rolled Steel And Galvanized Steel

Cold rolled steel is cold-rolled steel sheet production

, commonly known as cold plate. Cold is at room temperature will further rolling thin plate is a target thickness of the steel plate. And compare with hot rolled steel, cold-rolled steel plate thickness is more accurate, and the surface is smooth, beautiful, but also has superior mechanical properties, especially the processing performance. Because of cold rolled coil relatively brittle and hard, not too suitable for processing, so typically cold rolled steel demand after annealing, pickling and smooth surface then handed to the customer.

Cold rolled steel is divided into the three generation of products: boiling steel for the first generation, second generation of aluminum killed steel, interstitial free steelfor the third generation. Cold rolled steel for automotive, refrigerator, washing machine and other household appliances, and industrial equipment, a variety of building materials. Cold rolled plate main origin are: Baosteel, Shougang, Anshan Iron and steel, Benxi Iron and steel, Wuhan Iron and steel, Han steel, baotou iron and steel group, Tangshan Iron and steel, Lianyuan Steel, Jinan Iron and steel and other.

In order to prevent the plate surface from corrosion, prolong its service life, the surface of the steel plate coated with a layer of metallic zinc, zinc coated steel plate called the galvanized steel. Galvanized steel is widely used in construction, light industry, automobile, home appliances, electronics, agriculture, packaging and other industries. In recent years, our country building, home appliances and other industries of galvanized steel demand growth is very rapid, large market potential, especially in recent years, with the rapid development of construction of light structure, car output increases year after year, household appliances and widespread popularity, joint ventures, foreign-owned enterprises of electronic product export in great quantities, making galvanized plate consumption growth fast.

Galvanized steel according to production and processing methods can be divided into the following categories: hot dip galvanized steel, alloying galvanized steel, galvanized steel, single and double differential plating galvanized steel, alloy, composite galvanized steel. At present most commonly used is hot dip galvanized steel.

by: sunnies

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