With the development of modern technology and economy, cars have changed from a symbol of wealth to a travel necessity for every household.

With the continuous development of the global automobile industry and the deepening of the concept of environmental protection, lightweighting has become an important trend in the development of the automobile industry. In this context, cold-rolled automotive steel, as an important lightweight material, is gradually receiving widespread attention and application.

Performance of silicon steel sheet 1: The silicon steel sheet is required to have low iron loss. Low iron loss of silicon steel sheets is an important indicator of the quality of silicon steel sheets.

Cold rolled steel coils have a better finish and are more durable than hot rolled steel. Cold rolling is a process where steel is rolled at room temperature, below its recrystallisation temperature. Although cold rolled steel coils are superior to other coils, they are more difficult to handle due to their higher carbon content.

As we have said before, there are many different industries that use sheet metal, whether it is stainless steel, thin aluminium strip or copper and brass, here are some of the industries that use this material on a regular basis.

The cold rolled coil is made of hot rolled coil. In cold rolled process, the hot rolled coil is rolled below the recrystallization temperature, and the generally rolled steel is rolled at room temperature. Steel sheet with high silicon content has low brittleness and low plasticity, and needs to be preheated to 200 °C before cold rolling. Since the cold rolled coil is not heated during the production process, there are no defects such as pitting and iron oxide which are often found in hot rolling, and the surface quality and the finish are good.

It is a product obtained by cold-pressing a hot-rolled sheet. Due to the multi-pass cold rolling, the surface quality is better than that of the hot-rolled sheet, and after the heat treatment, good mechanical properties can be obtained.

When the output of cold-rolled wear-resistant plates is more than 1 million tons/year, modern cold-rolling units with large-scale, continuous, automatic and high-speed characteristics should be adopted. To improve production efficiency, try to avoid multiple single or double machines works following reversible rolling method.

All steel plate and pipe products contains 2 basic elements- carbon and iron, there might be some composition differences and various manufacture process. As for galvanized steel coil and cold rolled steel coil, they are similar steel products with unique performance and applications.