The hot rolled and cold rolled steel start out as large steel slabs
.The basic difference between these two types of steel is one of
process. As you can imagine, ¡°hot rolling¡± refers to processing done
with heat. ¡°Cold rolling¡± refers to processes done at or near room
temperature.Because of the different technological process, cold rolled steel has its unique advantages in some aspects.
.The basic difference between these two types of steel is one of
process. As you can imagine, ¡°hot rolling¡± refers to processing done
with heat. ¡°Cold rolling¡± refers to processes done at or near room
temperature.Because of the different technological process, cold rolled steel has its unique advantages in some aspects.
Dimensional Accuracy ¨C Cold Rolled Steel is more precise dimensionally than a hot rolled
product created by the hot rolling process. The Cold Rolled Steel has
already gone through the cooling process, which helps it remain closer
to the finished dimension requirements. Improved Strength & Hardness ¨C the cold rolling of hot rolled steel increases the strength and
hardness while decreasing the ductility of the steel. When a metal is
cold rolled, it is plastically deformed as it is forced between rolls.
This deformation causes dislocations of atoms within the metal causing
them to over-lap each other and increasing density. Increased density
means greater metal strength and hardness. Superior Surface Finish ¨C the finish on Cold Rolled Steel provides a uniform dull surface that
is smoother than hot rolled and suitable for painting or lacquering.
product created by the hot rolling process. The Cold Rolled Steel has
already gone through the cooling process, which helps it remain closer
to the finished dimension requirements. Improved Strength & Hardness ¨C the cold rolling of hot rolled steel increases the strength and
hardness while decreasing the ductility of the steel. When a metal is
cold rolled, it is plastically deformed as it is forced between rolls.
This deformation causes dislocations of atoms within the metal causing
them to over-lap each other and increasing density. Increased density
means greater metal strength and hardness. Superior Surface Finish ¨C the finish on Cold Rolled Steel provides a uniform dull surface that
is smoother than hot rolled and suitable for painting or lacquering.
Cold
rolled or cold formed steel has a smooth, shiny finish with an oily
texture that is free of rust or scale so it can easily be painted or
chromed. The dimensions of the final product are more precise and
square, with a sharper edge, and cold rolled steel sheet can hold
tighter tolerances than hot rolled when machined or otherwise
fabricated.
rolled or cold formed steel has a smooth, shiny finish with an oily
texture that is free of rust or scale so it can easily be painted or
chromed. The dimensions of the final product are more precise and
square, with a sharper edge, and cold rolled steel sheet can hold
tighter tolerances than hot rolled when machined or otherwise
fabricated.
