It has good strength and toughness, with a yield strength of 540MPa, a tensile strength of 590 - 780MPa, and an elongation greater than 16%. The reasonable combination of carbon (C), silicon (Si), manganese (Mn), phosphorus (P) and sulfur (S) in its chemical composition makes SS540 have excellent plasticity and strength.
Hot-dip galvanized steel sheet not only has high strength and hardness, can resist extrusion and deformation of external forces, but also has good plasticity and weldability, which is convenient for processing and assembly. In addition, it also has good reflective properties, can reduce the absorption of solar radiation, reduce indoor temperature, and improve energy efficiency.
Hot-dip galvanized steel is coated with pure zinc to provide excellent corrosion protection. This coating can provide continuous protection in the atmosphere for decades, reducing the cost of maintaining and replacing steel.
Q355B galvanized steel sheet has a tensile strength of up to 400-550MPa and a yield strength of 280-420MPa, which can maintain high strength and stability under heavy loads and complex working conditions. With an elongation of 21-29%, it can exhibit good plastic deformation ability when subjected to external forces, absorb more energy, and protect the structure from damage.
SGHC and SGCC are the same hot-dip galvanized steel sheets, generally processed according to JIS G 3302, but it is made from hot-rolled original sheets, and the applied thickness is 1.6mm to 6.0mm, which is thicker than SGCC. It also uses the hot-dip galvanizing process and has the high corrosion resistance brought by hot-dip galvanizing. The zinc layer can effectively protect the steel sheet and prevent rust and corrosion.
DC51D, DC52D, DC53D, DC54D+Z are different grades of galvanized steel sheets. Galvanized steel sheets are made by dipping thin steel sheets into a molten zinc bath to adhere a layer of zinc to the surface. They are mainly produced by continuous galvanizing process, that is, the rolled steel sheets are continuously dipped into a molten zinc bath to make galvanized steel sheets.
