Cold Rolled Products
As BSSW we also provide cold rolled steel products for the industry with competitive prices.
The term “cold rolled” actually refers to the product name of flat-rolled sheet and coil products.
Cold-rolled steel is low-carbon steel produced by a “cold rolling” method and processed at near normal room temperatures. Cold-rolled steel offers superior strength and machinability. Cold-rolled steel sheets are commonly used for engineered products where tight tolerances, concentricity, straightness and coated surfaces are required.
Cold-rolled steel is produced in cold reduction mills where the material is cooled at near room temperature, followed by annealing and/or tempers rolling. This process produces steel that has a wide range of surface finishes and is superior in tolerance, concentricity, and straightness compared to hot-rolled steel. Cold-rolled steel contains a low carbon content, and an annealing method makes them softer than hot-rolled sheet. Cold-rolled steel products are commonly produced in sheets, strips, bars and rods. Cold-rolled products are generally smaller than the same products produced by a hot-rolled method.
Cold-rolled steel sheets and strips are available in full-hard, half-hard, quarter-hard and skin-rolled conditions. Among these conditions, full-hard rolling reduces the thickness almost 50%, while the others are thicker. Skin-rolled steel stock is commonly used in subsequent cold-working methods where good ductility is required.
Other shapes can be cold-rolled if the cross-section is relatively uniform and the transverse dimension is relatively small. Cold-rolled shapes are processed in a series of shaping operations. This is usually done along the lines of sizing, breakdown, roughing, semi-roughing, semi-finishing and finishing.
Cold-rolled steel is used for a variety of products ranging from home appliances like refrigerators and washing machines to industrial machinery, architectural components, automobiles and a variety of construction-related products. Cold-rolled steel is an indispensable material in our modern society. Cold-rolled steel exhibits corrosion resistant properties. Smoother surface finishes are more corrosion resistant.