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The difference between Corten A hot rolled corten steel section, hot rolled sheet and cold rolled sheet: hot rolled sheet has low hardness, easy processing and good ductility. The cold-rolled sheet has high hardness and relatively difficult processing, but it is not easy to deform and has high strength. The cold rolled sheet is mostly used in automobile manufacturing and electrical products. Therefore, the two have their own characteristics. According to these characteristics, it is more appropriate to choose the right rolled plate to maximize its effect and benefit.
In general, the global manufacturing industry has been seriously impacted by the epidemic, and the foreign epidemic is still in the outbreak period, and its Corten A hot rolled corten steel section demand recovery still has some time. However, the domestic epidemic situation has come to an end. In addition, the state has repeatedly stressed that the development of traditional infrastructure and new infrastructure needs a lot of steel. And now the return to work is getting better. As of March 20, the return rate of key projects is 89.1%, and the return rate of 11000 key projects in China is nearly 90%.
Oxygen is a harmful element in Corten A hot rolled corten steel section steel. With the increase of oxygen content, the strength of Corten A hot rolled corten steel section steel increased, but the plasticity, especially the toughness, decreased significantly, and the weldability became worse. The presence of oxygen causes hot brittleness of Corten A hot rolled corten steel section steel.
Corten A hot rolled corten steel section, A588GrB material is a high-strength low-alloy structural steel in shapes of profiles, plates and bars. Through the alloying of Cu, P, Cr, Ni, a protective layer is formed on the surface of the metal substrate, so that A588GrB steel has a high resistance to atmospheric corrosion. A588GrB high-strength low-alloy steel is widely used in various weather-resistant building structural parts (especially for industrial atmospheric environments), bridge auxiliary structural parts.