Cold-rolled steel is a type of steel that is processed using a cold rolling process. It is produced by passing hot-rolled steel through a rolling mill at room temperature, which reduces the thickness and improves the surface finish of the steel. The cold rolling process involves deforming the steel by applying pressure between a set of rollers, which reduces the thickness of the steel and increases its strength.

Cold-rolled steel has several characteristics that make it desirable for various applications. One of the main advantages of cold-rolled steel is its improved surface finish, which is smoother and more uniform compared to hot-rolled steel. This makes it suitable for applications where appearance is important, such as in automotive body panels, appliances, and furniture. Cold-rolled steel also has improved mechanical properties, such as higher strength and hardness, due to the strain hardening that occurs during the cold rolling process.

Cold-rolled steel is used in a wide range of applications, including in automotive, construction, appliances, packaging, and electrical equipment. It is commonly used to make sheets, strips, and coils, which are further processed into various products. Cold-rolled steel is typically more expensive than hot-rolled steel due to the additional processing steps involved, but its improved properties and surface finish make it well-suited for certain applications where quality and appearance are important.