What Is Cold Rolled Steel Sheet in Coil?
Cold rolled steel sheet in coil is more versatile than hot rolled steel, and is better for projects that require smooth surfaces and well-defined corners. It can be oiled to prevent corrosion and wrapped in moisture-resistant paper packing.
Hr coil sheet is made from hot rolled steel and has a scaly surface, slight distortions, and less precise dimensions. It is usually a dull grey in color.
Size
Cold rolled steel is a type of flat product that’s been further processed. Unlike hot rolled steel, which is typically rolled while it’s still warm, cold rolled steel is cooled and then reheated. This enables the metal to be rolled more closely to specific sizes. The process also allows the steel to be annealed or tempered, which results in closer dimensional tolerances and more consistent surface quality.
This makes cold rolled steel ideal for projects that require precise dimensions and a high level of finish. It can be used for a wide range of applications, including manufacturing appliances, automobile components and furniture. It’s also frequently used in commercial and industrial construction.
In order to prevent corrosion, cold rolled steel is dipped in a rust-preventative oil as it exits the temper mill. This is a standard practice in the industry, and helps ensure that your coils are protected from damage during shipping and warehousing. Curtis Steel maintains clean, climate-controlled warehouses at all of its facilities, and this helps us to guarantee that your coil will arrive in top condition.
It’s important to note that, while rust-preventative oils help protect your coils cold rolled steel sheet in coil from corrosion, they do not protect against handling damage. For this reason, we recommend that you keep your coils on a pallet and surrounded by cardboard to protect them from any possible damage as they are transported or stored.
Color
Cold rolled steel products are often coated in order to provide added corrosion resistance and aesthetic appeal. The coatings can be a wide range of colors and formulations. The coatings also offer a high level of durability. The most common coatings used on steel are polyester, silicon modified polyester and polyvinyl chloride plastisol. These coatings are typically applied in a two coat system, with one basecoat and a topcoat.
The resulting product is a coated metal coil, which can then be slit and trimmed into the desired length. The coil is then wrapped in a moisture-resistant paper packing before being fitted with an outer metal cover. The package is secured with flat metal strapping bands positioned transversely and longitudinally across the coil. This allows the coil to be manipulated easily with fork-lift trucks.
It is important to remember that unwrapped coils of steel sheeting may spend a significant period of time in open storage, where they are exposed to rain and possibly a polluted atmosphere. Free moisture trickles down the edges of the plating and seeps in between the turns for a limited distance while the coil remains static. This results in a thin even film of surface rust.
To prevent this corrosion during shipment and warehousing, cold-rolled steel is dipped in rust-preventative oil. Curtis Steel carries this process out in clean, climate-controlled environments to ensure that our customers receive quality steel that is ready for immediate use.
Width
Steel coils are extremely versatile and can be used for a variety of different applications. They are also highly durable and affordable, making them a great option for many different projects. In addition, they are often a more environmentally friendly choice than other metals. The benefits of using steel coils include the fact that Tinplate Sheet supplier they can be cut to size easily, and they are also easy to manipulate. Steel coils are usually packaged in moisture-resistant paper and then sealed into a protective envelope or wrapped in a bundle with flat metal strapping bands around the perimeter of each coil. They are then secured to a wooden frame or other supports.
Compared to hot rolled steel, cold rolled steel has more precise dimensions and a better surface finish. It is typically oiled to prevent corrosion. This makes it a good choice for mechanical stress projects, such as metal furniture manufacturing or home appliance production. Cold rolled steel is also used in the automotive industry for its shock-proof and wear-resistant properties.
During the manufacturing process, cold rolled steel is worked hard to achieve various levels of temper, such as quarter-hard, half-hard, and full-hard. This allows it to be rolled thinner, but it also reduces its yield point and ductility. Depending on the level of temper, cold rolled steel can be bent back on itself or at an angle of up to 90 degrees without breaking.
Length
Cold rolled steel sheet and coil has tighter tolerances and a superior surface finish than hot rolled products. This is a result of the forming process, which takes place below the crystallization temperature. This gives the metal a more uniform physical characteristics and higher gauge accuracy. It’s also easier to work with in some applications because of its high stamping and bending capabilities. It is typically annealed and oiled to prevent corrosion during shipment and warehousing.
Alliance Steel offers a wide variety of cold-rolled materials to meet the needs of any project. Our cold rolled material is available in both strip and sheet form, and we offer additional value-added processing services like slitting, shearing, blanking, leveling, degreasing and brushing as well as metallurgical support.
Cold rolled steel is created by further reduction of thickness on a strip mill without the use of heat, which makes it thinner and flatter than hot rolled steel. It’s usually rolled to either quarter-, half- or full hard temper, which increases the yield strength and decreases its ductility. In the final product, it has a smooth deoxidized matte finish that makes for an excellent base for paint, lacquer and enamel. It can be used in a variety of projects including building components, domestic appliances and electrical goods because it can be cut, punched, bent and drilled with ease.
