What is the p265gh steel cold bending

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Hot-rolled steel sheet / cold-rolled steel sheet: Steel ingots or slabs are difficult to deform at normal temperature and difficult to process. They need to be heated to 1100 ° C to 1250 ° C for rolling. This P265GH steel rolling process is called hot rolling. Rolling at room temperature is generally understood as cold rolling. However, from the point of view of metallurgy, the boundary between hot rolling and cold rolling should be distinguished by the temperature of metal recrystallization, that is, rolling below the recrystallization temperature is cold rolling; Rolling above the recrystallization temperature is hot rolling.

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p265gh steel, P355NH plate is high temperature pressure vessel plate.Chemical composition of P355NH material: C ≤ 0.18, Si ≤ 0.50, Mn: 1.10 - 1.70, P ≤ 0.025, S ≤ 0.015, Al ≥ 0.020, N ≤ 0.012, Cr ≤ 0.30, Cu ≤ 0.30, Mo ≤ 0.08, Nb ≤ 0.05, Ni ≤ 0.05, Ti ≤ 0.03, V ≤ 0.10.Tensile properties of P355NH steel plate: the tensile strength range is 630-450Mpa. The yield strength is more than 355-295Mpa (less than 16mm). Elongation after fracture is 21-22%

Steel is an alloy of iron with carbon, silicon, manganese, phosphorus, sulfur and a small amount of other elements. In addition to iron, carbon content plays an important role in the mechanical properties of p265gh steel and so on steel. Iron and steel is an important raw material for machinery, construction, hardware and other industries. As an important pillar industry, the development of iron and steel has a glorious period, in which Tangshan was once an important production base of China's iron and steel. This is closely related to its geographical location and energy advantages.