1.What is the classification of DX51D?
According to the type of coating, it can be divided into DX51D+Z (galvanized), DX51D+ZF (galvanized iron), DX51D+ZA (galvanized aluminum), DX51D+AZ (aluminum zinc), etc.
2.What are the chemical composition and mechanical properties of DX51D?
The carbon content does not exceed 0.18%, the manganese content does not exceed 1.2%, the phosphorus content does not exceed 0.12%, etc. Its yield strength is usually 270-500N/mm², the tensile strength is generally greater than or equal to 290N/mm², and the elongation is not less than 26%.
3.What are the coating parameters of DX51D?
Common zinc layer weights include 80g, 120g, 150g per square meter and other different specifications. The thickness of the zinc layer is related to the weight of the zinc layer. For example, the thickness of a zinc layer of 80g per square meter is approximately 11μm.
4.What is the surface quality of the DX51D?
Surface grades are usually divided into FA (ordinary grade), FB (higher grade), FC (higher grade), etc. The surface should be free of obvious scratches, pits and other defects. High-grade surface grades have higher requirements for appearance quality.
5.What are the performance characteristics of DX51D?
It has a certain degree of ductility and is suitable for simple forming, bending, and welding, meeting general processing needs. At the same time, by selecting the appropriate coating weight, it can obtain good corrosion resistance, and the price is relatively affordable, with a high cost performance.