p355gh material specification steel grade equivalent plate

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Special boiler steel is derived from carbon structural steel, P355GH material specification. The expression of boiler steel grade is similar to that of high-quality carbon structural steel, and the carbon content is usually 0.20%. The chemical composition of boiler steel is basically the same as that of high-quality carbon structural steel of the same brand, but the mechanical properties are strictly required, especially the impact toughness, and the aging sensitivity is required to be small. After deoxidation and removal of non-metallic inclusions, boiler steel has a uniform structure, the grain size is controlled at 3-7 grade, and the defects such as interlayer, shrinkage, porosity and porosity are relatively less.

The black futures market is weakening. Terminal and middlemen are cautious in their inquiry and purchase, and p355gh material specification merchants have different shipments. However, the factory price of p355gh material specification keeps rising and the spot bottom is more supportive. The market mentality is still good. The high demand is limited, but the support from the raw material side is strong. It is expected that the p355gh material specification price will be stable tomorrow.

The difference between cold rolled steel sheet and hot rolled steel plate. The carbon content of p355gh material specification, 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.