Cold Rolled Sheet Steel Properties

Crcq is available in coil sheet or strip formed with various gauge ranges widths and hardness.

Cold rolled sheet steel properties.

Tight control over chemical composition hot rolling parameters amount of cold reduction annealing time and temperature and the amount of temper rolling allow the production of high quality cold rolled steel products to meet customer requirements. The rolls induce plastic deformation. The steel is processed further in cold reduction mills where the material is cooled at room temperature followed by annealing and or tempers rolling. Cold rolled steel sheet is essentially hot rolled steel that has been further processed to increase its strength and strength to weight ratio.

As the working takes place in temperatures below the rescrystallisation temperature strain hardening occurs. Chemically it is very similar to a36 hot rolled steel but the cold rolling process creates a better surface finish and better properties. Cold rolled steel is essentially hot rolled steel that has had further processing. The mechanical properties of the steel.

Some of the main properties of cold formed steel are as follows. When steel is formed by press braking or cold rolled forming there is a change in the mechanical properties of the material by virtue of the cold working of the metal. Alliance steel offers a variety of cold rolled steel sheet and coil products and value added services to meet customer needs. This process will produce steel with closer dimensional tolerances and a wider range of surface finishes.

Cold rolled has sharper corners and more precise dimensions than hot rolled. Cold rolled has a smooth and shiny finish while hot rolled has a grey and scaly finish. When a steel section is cold formed from flat sheet or strip the yield strength and to a lesser extent the ultimate strength are increased as a result of this cold working particularly in the bends of the section. In general cold rolled steel sheet can hold tighter tolerances than hot rolled when machined or otherwise fabricated and provides a better overall surface finish.

Thus the yield strength of cold rolled steel is higher than that of hot rolled steel. In general cold rolled has better mechanical properties than hot rolled. To meet the various end use requirements cold rolled sheet products are metallurgically designed to provide specific attributes such as high formability deep drawability high strength high dent resistance good magnetic properties enamelability and paintability. Cold rolled is more expensive than hot rolled.

Hot rolled steel is rolled or shaped at a high temperature while cold rolled steel is rolled at room temperature. Therefore cold rolled steel is identifiable by an oily and smooth surface. Cold rolled steel is rolled at room temperature below its recrystallization temperature which enables better control over finished product shape thickness dimensions and surface finish.