The difference between cold rolled steel sheet and hot rolled steel plate. The carbon content of ASTM A709 low alloy steel sheet, hot rolled steel plate is slightly higher than that of cold rolled steel sheet. In the case of little difference in composition, the density of cold rolled steel sheet and hot rolled steel plate is the same. Hot rolled steel plate has characteristics of low hardness, easy processing and good ductility. Cold rolled steel sheet has high hardness, and it is relatively difficult for processing. But it is not easy to deform and has high strength. Hot rolled steel plate can be made into alloy steel plate by adding other elements, and its properties are also excellent compared with other high-quality steel plates.
According to the economic development trend in Asia and the economic development of China, India, Japan and ASEAN, it is estimated that the steel consumption in Asia will be 1228 million tons in 2019, with a year-on-year growth of 6.6%; the ASTM A709 low alloy steel sheet steel demand in Asia in 2020 is predicted to be 1.241 billion tons, with a year-on-year growth of 1.1%. According to the ASTM A709 low alloy steel sheet economic development of Europe, it is estimated that the steel consumption in Europe will be 202 million tons in 2019, with a year-on-year decrease of 3.3%; the steel demand in Europe in 2020 is predicted to be 205 million tons, with a year-on-year growth of 1.5%.
A514 Gr P steel plate is high strength quenched and tempered alloy steel, which is an American standard steel plate. ASTM A709 low alloy steel sheet, A514 Gr P steel plate has high tensile strength and yield strength. It is commonly used in the manufacture of offshore platform, mining and various construction machinery and other structural parts. With the development of industry and the discovery of more and more offshore oil, the market demand for A514 Gr P steel plate is increasing.
