Steel Coils
Hot-rolled Steel Coils
Hot-rolled steel coils, commonly known as black skin coils, can be further rolled, cut, or formed into pipes, with a wide range of applications.
Hot-rolled steel coils have good toughness, sufficient strength, good weldability, and easy processing and shaping. In addition to being the main raw material for cold-rolled products, they are widely used in hardware, automotive, home appliance parts processing, structural fittings, architectural fittings, and processing into structural steel for construction, etc.
Pickled Coils
Pickled coils are made from high-quality hot-rolled thin plates, which are processed through acid pickling equipment to remove oxide layers, trim edges, and refine them.
The surface quality and usage requirements (mainly cold bending forming or stamping performance) are intermediate products between hot-rolled plates and cold-rolled plates, ideal substitutes for some hot-rolled plates and cold-rolled plates. Pickled plate has good surface quality. Compared with ordinary hot-rolled steel plate, hot-rolled pickled plate removes surface iron oxide, improves surface quality of steel, enhances appearance, and is also convenient for welding, oil coating, and painting. It is commonly used in automotive industry, compressor industry, machinery manufacturing industry, processing industry, fan industry, motorcycle industry, steel furniture, hardware accessories, electrical cabinet shelves, and various shaped stamping parts, etc.
Cold-Rolled Steel Coils
Cold-rolled steel products are made from hot-rolled coils through uncoiling, welding, leveling, hydrochloric acid pickling, rolling, annealing, trimming, and refining, and then rolled into thinner cold-rolled steel coils by serial cold rolling mills, followed by processes such as electrolytic cleaning, annealing, and temper rolling.
Cold-rolled steel coils can roll out thinner steel than hot-rolled steel coils, with improved dimensional accuracy, straightness, and high surface finish, not easy to deform, and suitable for coating processing, widely used in automobile body panels, printing iron drums, household appliances, rolling doors, commodity shelves, bicycles, etc.
Galvanized steel Coil
Galvanized steel coil is a process of coating non-corrosive zinc on metal. Because zinc is more reactive than iron or steel, the zinc coating will be corroded first, thereby protecting the steel or iron matrix.
It has excellent corrosion resistance, solvent resistance, fingerprint resistance, paint adhesion, scratch resistance, conductivity, and spot welding properties, widely used in construction, household appliances, vehicles and ships, container manufacturing, and electromechanical industries.
Patterned Steel Coils
The patterned steel coil, also known as embossed steel coil, has patterns such as rhombus, kidney bean, and lentil, among which the kidney bean pattern is the most common, featuring raised or recessed patterns on the surface.
Due to the non-slip effect of the patterned surface, it is also called non-slip coil and is often used for floors, pedal, etc. It is commonly used in decoration, construction, furniture, etc., to enhance the aesthetics and texture of the product.