The structure of clear chill cast iron rolls is made up of a non-continuous network of carbides in a pearlitic or bainitic/martensitic matrix. Thanks to their high carbide ratio, these rolls have an excellent wear resistance, whereas their resistance to thermal fatigue is reduced by the absence of free graphite. These rolls may be supplied as monobloc or as compound. For high hardness the used of compound rolls which can guarantee optimal properties in the working layer and in the core is recommended.
Clear chill cast iron rolls are used for intermediate, pre-finishing and finishing stands of open and continuous mill for rod and wire-rod and pre-finishing and finishing stands for narrow strips. They are also used as guide rollers.