Hot rolled steel is more malleable allowing it to be forced into a variety of different shapes.
Hot rolled vs cold rolled steel sheet.
Hot rolled steel is malleable and perfect for industrial applications such as structural beams rail tracks and sheet metal.
In comparison a cold rolled steel product with the same chemical composition has a yield strength of 365 mpa.
Cold rolled steel is stored and sold in coiled form after rolling.
First hot rolled steel coil is manufactured and later it is run through a mill which forms the coil into the steel sheet pile sections.
Although this combines two processes the method as i will point out later has an advantage of economy and scheduling in the cold formed process.
Steel comes in many grades specifications shapes and finishes the world steel association lists over 3 500 different grades of steel each with unique properties.
Hot rolled steel has a blue gray appearance and a rough feel once it completes the rolling process and will remain malleable and soft.
Hot rolled steel is easier to make to shape and form.
It is also used to produce sheet metal.
Cold rolled steela rolling process at temperatures that.
To know various materials used to manufacture sheet metal parts.
Hot rolled steel involves rolling the steel at high temperatures where cold rolled steel is processed further in cold reduction mills where the material is cooled followed by.
As an example a hot rolled steel product may have a yield strength of 235 mpa.
The major d ifference between hot rolled and cold rolled steel is the way they are processed.
All of ours ub uc pfc rsa flats are hot rolled whereas shs chs rhs that we provide are cold rolled structural steel.
This makes hot rolled steel a good choice for the manufacturing of structural components such as i beams or simple cross sections such as rail tracks.
As noted in an earlier post different types of steel undergo a wide range of processes to achieve the proper physical properties many people have heard that there s a difference between hot and cold rolled steel but don t understand what how the production of hot rolled or cold rolled steel is different from one another what industries and applications hot rolled and cold rolled serve.
Hot rolled steel is weaker than cold rolled but it s also cheaper since it doesn t go through the second production process.
The differences between hot rolled steel and cold rolled steel relates to the way these metals are processed at the mill and not the product specification or grade.
Thus the yield strength of cold rolled steel is higher than that of hot rolled steel.
Hot rolled steel involves rolling the steel sheets above re crystallization temperatures.
Whereas cold rolled steel is processed in cold reduction mills followed by annealing and tempering.
The rolls induce plastic deformation.
The various types mean that steel can by widely used in infrastructure appliances vehicles wind turbines and many more applications.
