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Cold rolled plate
Cold rolled steel is a process that takes a hot rolled steel piece and further colder it down to a desired temper. Cold rolling steel allows for the material to be stronger and also thinner than hot rolled steel. The cold rolling process is a very important step used in the production of steel. It gives the metal a smoother finish and makes it easier to work with.
The process of cold rolling steel begins by heating the hot rolled steel. This heating process increases the strength of the steel. After it is heated, the steel is divided into various thicknesses, which are based on the customers specifications. The steel is then passed through a series of rollers in order to reduce the thickness of the plate. This process also increases the strength of the steel again.
The cold roll steel then undergoes a process of annealing. This is where the steel is heated in an oven for a long period of time in order to increase its malleability. After this process, the steel is then cooled in order to reduce the potential for the steel to become brittle. After the cold roll steel has been annealed, it is then rolled using pressure, making it much harder. Once the steel has been hardened, it then goes through tempering, which is where the hardness is reduced in order to make the steel suitable for further use.
The cold rolled steel plates are then tested for strength, hardness, ductility, size and shape. Once the plates meet all the desired criteria, they are then cut and processed into the correct sizes and shapes according to the customer’s specifications.
Cold rolled steel is mainly used in industrial manufacturing, due to its strength, hardness and formability. A few examples of these are automotive production, shipbuilding and construction. It is also increasingly used in art as it can be more easily moulded and manipulated to fit the desired shape.
The advantages of cold rolled steel are that it has a higher strength to weight ratio than hot rolled steel, it is available in a variety of shapes and thicknesses, and it can be easily formed and welded. It also has a higher tolerances for dimensional and form accuracy than hot rolled steel.
The main disadvantage of cold rolled steel is that it is more expensive than hot rolled steel due to the additional processing that needs to be done. The cold rolling process also takes longer than hot rolled steel.
In conclusion, cold rolled plate has many advantages over hot rolled plate, such as increased hardness, strength to weight ratio and greater formability. These advantages make it the ideal choice in many industrial manufacturing applications. With increased use in art, cold rolled steel is becoming increasingly popular in many sectors.
