Different Types of Cold Rolled Coil

Cold rolled coil offers a wide range of applications for a number of industries and products. Its dimensional accuracy, formability, and surface finish make it ideal for many different uses.

Cold rolled steel goes through a cold rolling mill, which uses rollers to compress and flatten metal billets even further. This process also tightens metal grain crystals, which helps to reduce surface roughness and appearance.

Strength

Cold rolled steel is more rigid and less malleable than other types of metal, and it’s often used in situations where precise dimensions and a sleek appearance are important. For example, prime cold rolled coil is used to manufacture appliances and furniture because it’s durable and offers a high level of dimensional accuracy.

Cold-rolled steel can also be used to make pipes and tubes for construction projects. It’s strong and durable enough to handle the pressure of pipe manufacturing, and it provides stability and a smooth surface finish.

Unlike hot-rolled steel, which is coiled while it’s still extremely malleable, cold-rolled steel is coiled while it’s cooled down to room temperature and passed through cold reduction mills that compress it into thinner gauges. This process, known as annealing, relieves stress and increases the strength of the metal.

The tensile strength of cold-rolled steel is higher than that of hot-rolled steel, and its yield strength is much greater. This makes it an ideal material for machining, because the scaly, gray appearance of hot-rolled steel can be difficult to work with. In addition, cold rolled steel has a smooth deoxidized matte finish that’s easy to paint and coat. This makes it ideal for use in metalworking applications like fabrication, forming, and stamping. It can even be cold extruded, which is a method that forces a slug of metal through a die at room or slightly elevated temperatures.

Durability

Cold rolled metal is work hardened in the rolling process and can be quite brittle. To soften the metal and make it easier to use, it goes through a heating process called annealing. This heats the coil to around 1,200 degrees Fahrenheit. The resulting annealed steel is easier to cut and bend without losing its strength or quality.

This annealing also improves the surface finish on the steel. It removes the mill scale from the coil and produces a cold rolled coil clean, smooth, and refined surface. In addition, it can reduce the need for further treatments like galvanizing.

Since cold rolled metal is prone to corrosion, the industry typically applies an oiling that protects it during shipment and storage. Curtis Steel uses rust-preventative oils that meet the requirements of EN 10130 to ensure that our coils arrive ready for processing.

Due to their superior durability and sleek appearance, cold-rolled metals are commonly used in appliances like refrigerators and washing machines. They’re also popular in construction projects, including building materials, wall panels, and structural components. Rapid industrialization in developing economies has increased demand for high-quality building and manufacturing materials, bolstering the global market for cold-rolled coils. With its tighter tolerances and better surface finish, cold-rolled metal is ideal for a variety of precision projects. It helps save dozens of hours and thousands of dollars in metalworking expenses for businesses.

Corrosion Resistance

Cold rolled steel is often coated to improve its resistance to corrosion. This process enhances the durability of the metal, extending its lifespan. Steel coatings are available in a variety of colors, textures, and finishes. These coatings also offer additional protection against weather damage. The corrosion resistance of cold rolled coils is comparable to that of hot-rolled steel.

The act of working the steel cold increases its hardness while decreasing its ductility, which makes it better able to hold a shape without breaking. In addition, cold rolled metal has tighter dimensional tolerances than hot-rolled steel. This makes it ideal for applications that require precise thickness, width, and length measurements.

Furniture and Shelving

Cold-rolled steel coils are commonly employed in the manufacturing of desks, tables, chairs, cabinets, and shelving units. They provide stability, strength, and a sleek appearance that is perfect for many furniture applications.

Construction

Prime cold-rolled steel is used to produce roof materials, wall Hardened & Tempered Steel Strip Supplier panels, and structural components for buildings and other structures. The durability and corrosion resistance of cold-rolled steel make it an excellent choice for construction purposes.

Appearance

Cold rolled steel coil is flat metal that’s been through the cold rolling process. This takes hot rolled steel coil, which is pickled and oiled, then passes it through work rolls at room temperature, or less than the recrystallisation temperature of the metal. This reduces the thickness of the material, while improving its appearance and mechanical properties.

The resulting metal is more refined than hot rolled coil, with a smooth surface and no pits or pressed iron oxide scales that sometimes appear on hot rolled products. It also has better dimensional accuracy and surface finish, which makes it ideal for use in industries that require precise dimensions, high quality surfaces, and consistent mechanical properties.

This material can be used in a wide range of applications, including automobile manufacturing, electrical products, rolling stock, aviation, precision instruments, and canned food. It’s used in these applications because of its strength, machinability, and corrosion resistance.

Cold rolled steel is also more flexible than hot rolled coil, which allows it to be formed into various shapes and structures. It can be used to make structural elements for buildings and other projects, including reinforcements, pipes, and troughs. It’s also useful in manufacturing automotive components like load-bearing parts and fuel tanks, as well as seat parts and electric motors. It’s often painted or galvanised for added protection and durability.