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Alloy Cast Steel RollsAlloy Cast Steel Rolls AKA. AS rolls belong to eutectoid steel and hypereutectoid steel. Alloy content greater than 0.8%,Website:http://www.kdroll.com, carbon content 0.4~1.3, Cr, Ni, Mo, V is added, matrix structure goes through heat treatment of normalizing and tempering, becoming sorbite and tempered sorbite.This type of roll has good strength, normally used for blooming and slab mills, rail mill roughing stands, section and bar wire roughing stands, etc.Alloy steel rolls normally employ monoblock casting process (single pour):Melting-Casting-Heat treatment-Machining-