What is a cold rolled steel?

cold rolled steel is steel, which was processed under its recrystallization temperature through the passage between a pair of rollers. Recrystallization temperature is the temperature at which the grate structure of the metal has been reached, so it was without tension and deformation. In this way, cold rolling differs from hot rolling, which is used to work metal over its recrystallization temperature. Cold steel stock is available in different sizes and shapes with characteristics useful in a wide range of applications. The metal then passes through the rollers to reduce its thickness. Most cold rolling takes place in several passages and usually includes two metal processing stations. One station is used for a greater initial size reduction, while the other produces a minor reduction in completion and produces an acidity surface. Due to the increased hardness created by cold rolling, this process is more limited than rolling hot hearts when reducing the size achieved at each passu.

There are several reasons for cold. This process reduces the thickness of the worked metal and achieves stricter thickness tolerance than to produce heat rolling. Cold rolling can also create a high quality finish and prepare the metal to receive the surface coating.

can be produced a number of steel storage degrees depending on the reduction of the size of the original material. Steel for rolling the skin is subject to a reduction of 0.5–1.0% and is known for smooth finish and good ductility. Other steps include a quarter of a hard, half hard and hard, which can reach up to 50% reduction in size from the original supply.

Since the size of the steel rolled on the cold further decreases, the strength and hardness increase, but its ductility decreases. The quarterly hard steel retains sufficient draft that it can bend back to each other without breaking. Half the hard steel canE be bent only to 90 degrees and full hard steel can only be bent to 45 degrees without fracture. After rolling the cold, the heating of the metal in the process known as annealing can restore part of its draft. The final cold rolled steel supply can be made in the form of leaves, strips, rods or other forms.

Cold steel products have a number of attributes suitable in a wide range of applications. In addition to its high strength, the rolled steel is highly resistant to persecution and shows useful magnetic properties. It also easily accepts surface coatings such as enamel and color. Manufactured objects made of steel rolled steel from commercial products such as appliances and bathtubs to industrial products, including engines, generators and transformers. <<