Patent ID: 6805757
Filing Date: 2004-10-19
Classification: B21B,C21D,C22C,Y02P,Y10T

Abstract:
A casting material for the working area of indefinite chill rolls comprising an alloy of, in wt-%,2.0 to 3.5carbon1.0 to 2.0silicon0.5 to 2.0manganese1.0 to 3.0chromium3.5 to 4.9nickel0.20 to 2.9molybdenum0.002 to 0.65aluminum andmore than 0.5 to 5.9 vanadium, provided that the vanadium may in part be replaced, in an amount of less than 0.6 wt-%, by at least one of niobium and tantalum, the remainder being iron, accompanying elements and impurities related to the manufacturing process, wherein 1.0 to 3.0 vol-% of graphite is present in the form of particles with a distribution of more than 20 and less than 100 particles per mm2 of polished surface of the alloy.