Hot rolled Steel VS Cold Rolled Steel

Processing of the materials with metalworks for the rolling pass is referred to as the rolling, shaping, and flattening process. They can include processing methods like roll forming, flat rolling, roll bending, and ring rolling. The temperature of the steel that has to be rolled is the most important part of this process.

In this, we will be discussing the fundamental differences in hot and cold rolling related to the finishing, processing, and performance of the end product.

Hot Rolled Steel:

In order to achieve the desired shape or product sheet the steel has to be heated to the recrystallization temperature and this process is known as hot rolled steel. These types of steel are used in projects where the tolerance, dimension, and precise shape of the fundamental steel are not required. 

Traits of hot-rolled steel are scaled surfaces, less predictable shapes, and round edges or corners. The manufacturing process of hot-rolled steel is very quick when compared to cold-rolled steel and is a cheap alternative.

Benefits of Hot rolled Steel:

  • Hot-rolled steel is less expensive when compared to cold-rolled steel as the processing is very less.
  • As the steel is elevated at high temperatures making workability better makes the shape and form easy.
  • As the cooling process of steel is gradually done the material does not have any internal stresses.

Hot Rolled Steel Application:

As the steel shrinks in the cooling process they are used in an application that does not require a high degree of shape control. They are used in 

  • Railroad Equipment.
  • Agriculture Equipment.
  • Construction Materials.
  • Automobile Parts.

Cold Rolled Steel:

In the cold rolled steel process, the steel is rolled below the recrystallization temperature, in order to achieve this the steel is cold when it’s no longer flexible. Cold-rolled steel is used in small projects or products like sheets, bars, rods, and strips. For high durability and tolerance steel cold process steel is used. 

Traits of cold rolled steel are straightness, smooth surface, and precise edges or corners. This steel is cold to room temperature before being rolled into specific dimensions. The general format shape of the cold rolled steel is square, round, and flat shapes. Cold-rolled steel has smoother and superior counterparts and is more expensive than hot-rolled steel.

Benefits of Cold Rolled Steel:

  • So the result is the cold rolled steel is 20 times stronger than the normal steel.
  • Cold-rolled steel gives a smooth finishing surface giving improved aesthetics to the construction structure.
  • Multiple options are available in cold rolled steel processing which includes full-hard, half-hard, quarter-hard, and skin-rolled. Mostly the full-hard cold rolled steel is used at is reduce the thickness by 50%.
  • For the manufacturing of the gears, spline shafts, and timing pulleys cold-rolled steel is used.

Uses of Cold Rolled steel:

  • In the manufacturing industry, cold-rolled steel is used for the production of steel coil, tube, steel sheet, and substrate of painted steel.
  • For the construction of the columns, joists, beams, decking, and floor cold rolled steel is commonly used.
  • As it is more vital than hot steel it is used in the construction of steel frames and mechanical pipelines.
  • The characteristics of cold rolled steel are glossy, sturdy, and smooth surfaces as well as tiger tolerance make is used in metal furniture and home appliances.

Based on the need and specification InfraGreen Coimbatore and Tiruppur district supply the steel as well as uses the right kind of steel in the construction process to give quality building or structure that lasts for a long time. 

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