Rollers for rolling mills

摘要

A roller for rolling mill comprising an entirely non-metallic sintered body composed principally of at least one material selected from silicon carbide, silicon nitride, sialon, alumina and zirconia and having a relative density which is at least 96% of the theoretical density of the sintered body, the roller having an initial crown in the range of -300 mu m to +300 mu m, is provided. This roller for rolling mill has a high hardness and high wear resistance and can be used as a work roll.