Cold rolled steel is manufactured by pickling hot rolled
coils to remove the surface oxide. The coils are then cold
reduced through a cold mill to their desired thickness.
Because of the severe cold reduction, usually 50% or more,
the cold rolled coil has extremely low ductility. The coil
is then annealled to improve the ductility followed by temper
rolling to ensure the finished product has the shape or flatness
required.
Cold rolled steel can be produced to a variety of grades
and surface finishes to meet specific end-use requirements.