The main advantages of the pickled coil
Pickled sheet is an intermediate product made from high-quality hot-rolled thin plates. After the removal of the oxide layer by the pickling unit, edge trimming and finishing, the surface quality and application requirements (mainly cold-bending forming or stamping performance) of the pickled sheet lie between hot-rolled plates and cold-rolled plates. It is an ideal substitute for some hot-rolled plates and cold-rolled plates.
Compared with hot-rolled plates, the advantages of acid-washed plates mainly lie in: 1. Good surface quality. Since hot-rolled acid-washed plates remove the surface oxide scale, they improve the surface quality of the steel, facilitating welding, oiling and painting. 2. High dimensional accuracy. After flattening, the plate shape can change to some extent, thereby reducing the deviation of unevenness. 3. Improved surface finish and enhanced appearance effect. 4. Can reduce the environmental pollution caused by users' acid-washing. Compared with cold-rolled plates, the advantages of acid-washed plates lie in that, while meeting the surface quality requirements, they enable users to effectively reduce the procurement cost. Many enterprises have increasingly higher requirements for the high performance and low cost of steel. With the continuous progress of rolling steel technology, the performance of hot-rolled thin plates is approaching that of cold-rolled plates, making "replacing cold with hot" technologically feasible. It can be said that acid-washed plates are a product with a relatively high performance-price ratio between cold-rolled plates and hot-rolled plates, and has a good market prospect.
The market manifestation of acid-etched coils
The acid-etched coil market mainly manifests in the following four aspects: replacing cold-rolled, replacing hot-rolled, replacing imported products, and replacing small acid-etched. Among them, replacing imported products and small acid-etched are actually existing markets with limited scope and cannot be completely substituted. With the rapid development of industries such as automobiles, machinery, and light industry, enterprises are facing huge pressure from market competition and are increasingly demanding higher product costs and quality. Acid-etched coils, with their high cost-performance ratio, will completely replace some cold-rolled and hot-rolled products and will gradually be recognized by users.
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