Hearth Roll, Thermal Spraying Material, And Hearth Roll Production Method

Abstract: Provided is a hearth roll comprising a hearth roll base material and a thermal spraying coating that is formed on a surface of the hearth roll base material, said hearth roll being characterized in that: the thermal spraying coating comprises 20-80 mass% of a ceramic component and 20-80 mass% of a metal component, in terms of percentage with respect to the thermal spraying coating; the ceramic component comprises 20-80 mass% of a nitride, 0-50 mass% of a carbide, and 0-1 mass% of an oxide, in terms of percentage with respect to the thermal spraying coating; the nitride is a nitride of one or more elements selected from the group consisting of Cr, Ta, and La; the carbide is a carbide of one or more elements selected from the group consisting of Cr, Ta, and La; and the metal component is a Ni-based alloy including Cr and Mo.

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