S220GD: This is one of the high-strength grades of galvanized steel sheet, with high yield strength and tensile strength, suitable for the manufacturing of structural components with high strength requirements
S250GD: Compared to S220GD, S250GD has higher strength and is suitable for manufacturing structural components that require higher strength
S280GD: Compared to S250GD, the strength of S280GD has slightly increased, making it suitable for manufacturing structural components that require higher strength
S320GD: This is one of the high-strength grades of galvanized steel sheet, with high yield strength and tensile strength, suitable for the manufacturing of structural components with high strength requirements
S350GD: Compared to S320GD, S350GD has higher strength and is suitable for manufacturing structural components that require higher strength
DX51D: This is the most common grade, belonging to low-carbon steel sheet, with good plasticity and welding performance, suitable for various cold forming processes and galvanizing treatments
DX52D: Compared with DX51D, DX52D has slightly higher carbon content and strength, making it suitable for cold forming and galvanizing processes that require higher strength
DX53D: Compared to DX52D, DX53D has slightly increased strength and is suitable for cold forming and stretching processing
High strength grades such as S220GD, S250GD, S320GD, etc. are suitable for structural components that need to withstand large loads or impacts, such as bridges, building structures, heavy machinery, etc.
Low strength grades such as DX51D, DX52D, DX53D, etc. are suitable for general construction, automotive manufacturing, home appliances and other fields, and are widely used due to their good processability and weldability.
English