Cold rolled steel typically has a good surface finish, tight dimensional tolerances and excellent machinability. Therefore, cold rolled steel, as a raw material, is widely used in many application fields, including manufacturing, construction, home appliances, automobiles, machinery, etc.

Stronger, Smooth Surface And Tighter Tolerance: the Main Attributes

The strength of cold rolled steel is significantly higher than that of hot rolled steel. When the rollers compress the steel at room temperature, the steel becomes stronger due to strain hardening. Cold rolled steel is usually around 20% stronger than hot rolled steel.

Cold rolled steel also has a better surface finish. Smoother with fewer surface defects. This not only improves the aesthetics of cold rolled steel; it makes cold rolled steel a more suitable material for certain applications, such as bridge construction.

Cold rolling allows tighter tolerances than hot rolling. What exactly does this mean? In metalworking, the term "tolerance" refers to the overall thickness of the metal. Cold rolled steel is generally thinner than hot rolled steel (without sacrificing strength). Therefore, cold rolling offers tighter tolerances than other steelmaking processes.

Common Cold Rolled Steel Products

Cold rolled steel is great for projects that require precision. Suitable for moderate stretch applications due to ease of forming. It is therefore very suitable for use in many household appliances and metal furniture. Metal filing cabinets and school lockers are also made of this metal. In the construction sector, cold rolled steel is a common material for the construction of steel sheds, industrial buildings and garages.

Another downsides is its low malleability. Hot rolled steel is very temperature dependent, but cold rolled steel cannot. Cold rolling involves compressing steel under rolls at room temperature, making it more difficult to shape. This means you have to be more careful about measuring the width in advance - once you start, you won't have any wiggle room.

We offer cold rolled steel in various size ranges and grades china hot dipped galvanized steel coil to meet the specific needs of our customers.