S355J0 is a kind of carbon structural steel plate produced by European standard. It is similar to Q345B steel plate in performance, composition and application. However, some details of these two kinds of steel plates are different, which can not be completely replaced. astm a36 ss400 galvanised mild steel, S355J0 steel is used in buildings, bridges, ships, vehicles and other structures.
The difference between cold rolled steel sheet and hot rolled steel plate. The carbon content of astm a36 ss400 galvanised mild steel, 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.
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Sulfur is a very harmful element in astm a36 ss400 galvanised mild steel steel. The presence of sulfur will increase the hot brittleness of steel, reduce the various mechanical properties of astm a36 ss400 galvanised mild steel steel, and reduce the weldability, impact toughness, fatigue resistance and corrosion resistance of steel.