These steels belong to the galvanized series, where DX51D, DX52D, DX53D and DX54D represent different strength grades, while +Z means the surface is hot-dip galvanized 76. The galvanized layer provides good corrosion resistance and is suitable for a variety of outdoor and indoor building structures.
DX51D: Usually used for general purposes, with lower tensile strength. DX52D: Slightly higher tensile strength than DX51D, suitable for applications with slightly higher strength requirements. DX53D: Has higher tensile strength, suitable for more demanding application environments. DX54D: Is the highest grade among these, with the highest tensile strength, suitable for industrial applications with high strength requirements
DX51D: It is a common cold-rolled substrate with good formability and weldability, suitable for general stamping and bending processing. DX53D: It is a deep-drawn cold-rolled substrate with higher stamping performance and suitable for complex stamping forming2. DX54D: It has higher strength and toughness and is suitable for manufacturing structural parts that need to withstand greater stress5. DX55D: It usually refers to a steel grade with higher strength, which may be used to manufacture automotive structural parts, etc.
