Galvanized steel strips are widely used in several industries due to their excellent properties. In the automotive industry, it is used to manufacture body components, which make vehicles more energy-efficient due to its lightweight properties. In the building and construction industry, these steel strips can be used to make covering materials for doors, walls and roofs. In addition, they are also used to manufacture condensers for air conditioners and refrigerators.
The zinc-based alloy coating of hot-dip galvanized steel strip has a satisfactory appearance and can be firmly fixed on the strip steel substrate. This is because the zinc-based alloy coating undergoes a series of treatments during the production process to ensure its good bonding with the substrate.
The hot-dip galvanizing process forms a zinc coating on the surface of the steel strip, which can effectively isolate the steel from the external environment, prevent the steel from rusting and corrosion, and greatly extend the service life of the steel strip. It is suitable for various harsh industrial and outdoor environments.
Q235B/Q355B galvanized steel strip is made of high-quality carbon structural steel, of which Q235B represents B-grade steel with a yield strength of 235MPa, while Q355B represents B-grade steel with a yield strength of 355MPa. This steel has high strength and good toughness and can withstand large loads.
The dense protective layer and electrochemical sacrificial anti-corrosion effect form an excellent anti-corrosion layer to protect steel. Long-term anti-corrosion effect, no maintenance required, is the most economical long-term anti-corrosion method. Iron and zinc react to form an alloy, strong adhesion, impact resistance, friction and not easy to peel off.
DX51D, DX52D, DX53D, and DX54D are the classifications of continuous hot-dip galvanized steel sheets and strips in European standards (EN), where "D" stands for hot-dip galvanizing. Different numbers represent different performance levels. Generally, the larger the number, the better the elongation performance and other indicators12. "Z" stands for hot-dip galvanized layer, and is usually followed by a number such as z40, z60, z100, etc. The number represents the weight of the galvanized layer in g/m². The larger the number, the thicker the galvanized layer and the better the corrosion resistance.
