Customers often ask us about the differences between hot rolled steel and cold rolled steel.Both
hot rolled steel and cold rolled steel start out in essentially the
same way and both can have the same grades and specifications. But cold
rolled steel undergoes additional processing steps, resulting in
improved properties that can be exploited for different applications.
Each type of steel has its advantages and disadvantages and costs for
the two types of steel are also different.
hot rolled steel and cold rolled steel start out in essentially the
same way and both can have the same grades and specifications. But cold
rolled steel undergoes additional processing steps, resulting in
improved properties that can be exploited for different applications.
Each type of steel has its advantages and disadvantages and costs for
the two types of steel are also different.
First, about the surface quality and thickness.The
cold-rolled steel adopts cold-rolled processing,so the surface is
smooth and with high gloss. The hot plate is treated with hot rolled
surface with scale, and the thickness of the plate has lower devation
.The surface of the hot rolled steel that is not electroplated is dark
brown, and the surface of the non-plated cold plate is gray. After
plating, it can be distinguished from the smoothness of the surface, and
the smoothness of the cold-rolled steel is higher than that of the
hot-rolled steel.The thickness of the coil rolled by cold rolling can be
rech 0.001mm,as the same time ,the thickness rolled by hot rolling only
can be reach 0.78mm. So the thickness of the cold rolled steel can be
thinner.Second,about the toughness.The toughness and
surface flatness of the hot rolled steel are poor and the price is
low.But the cold rolled steel has good stretchability and toughness,so
the pric is relatively expensive.Third,about the way of rolling. Rolling
is divided into cold rolling and hot rolling, and the recrystallization
temperature is used as a distinguishing point.Cold rolling is generally
used to produce strips with high rolling speed. The temperature of hot
rolling is similar to the temperature of forging.
cold-rolled steel adopts cold-rolled processing,so the surface is
smooth and with high gloss. The hot plate is treated with hot rolled
surface with scale, and the thickness of the plate has lower devation
.The surface of the hot rolled steel that is not electroplated is dark
brown, and the surface of the non-plated cold plate is gray. After
plating, it can be distinguished from the smoothness of the surface, and
the smoothness of the cold-rolled steel is higher than that of the
hot-rolled steel.The thickness of the coil rolled by cold rolling can be
rech 0.001mm,as the same time ,the thickness rolled by hot rolling only
can be reach 0.78mm. So the thickness of the cold rolled steel can be
thinner.Second,about the toughness.The toughness and
surface flatness of the hot rolled steel are poor and the price is
low.But the cold rolled steel has good stretchability and toughness,so
the pric is relatively expensive.Third,about the way of rolling. Rolling
is divided into cold rolling and hot rolling, and the recrystallization
temperature is used as a distinguishing point.Cold rolling is generally
used to produce strips with high rolling speed. The temperature of hot
rolling is similar to the temperature of forging.
Due
to the different characteristics of cold rolled steel and hot rolled
steel, their corresponding application fields are also different. Cold
rolled steel is used in automobiles, refrigerators, washing machines and
other home appliances, as well as industrial equipment and various
building materials.Hot rolled steel is used in Steel Framework,
Structure, Motor Vehicle Components and frameworks, piles, heavy
equipment components, common fabrication and so on.
to the different characteristics of cold rolled steel and hot rolled
steel, their corresponding application fields are also different. Cold
rolled steel is used in automobiles, refrigerators, washing machines and
other home appliances, as well as industrial equipment and various
building materials.Hot rolled steel is used in Steel Framework,
Structure, Motor Vehicle Components and frameworks, piles, heavy
equipment components, common fabrication and so on.
