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Centrifugal high chromium cast iron roll

The eutectic carbide (M7C3 type) in the tissue accounts for 20%-30%, and is a discontinuous network, so the roll has high wear resistance. The matrix tissue is composed of tempered martensite and sorbite, with fine dispersed secondary carbides (M7C3 type, M23C6 type, M3C type) distributed on it, thus increasing the anti-wear strength of the roll. The Cr2O3-rich film covering the surface of the roll has high-temperature oxidation strength and plastic resistance, making this type of roll particularly suitable for hot rolling of steel.

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  • Product Description
    • Commodity name: Centrifugal high chromium cast iron roll
    • Commodity ID: 1242871237894098944

    The eutectic carbide (M7C3 type) in the tissue accounts for 20%-30%, and is a discontinuous network, so the roll has high wear resistance. The matrix tissue is composed of tempered martensite and sorbite, with fine dispersed secondary carbides (M7C3 type, M23C6 type, M3C type) distributed on it, thus increasing the anti-wear strength of the roll. The Cr2O3-rich film covering the surface of the roll has high-temperature oxidation strength and plastic resistance, making this type of roll particularly suitable for hot rolling of steel.

    The eutectic carbide (M7C3 type) in the tissue accounts for 20%-30%, and is a discontinuous network, so the roll has high wear resistance. The matrix tissue is composed of tempered martensite and sorbite, with fine dispersed secondary carbides (M7C3 type, M23C6 type, M3C type) distributed on it, thus increasing the anti-wear strength of the roll. The Cr2O3-rich film covering the surface of the roll has high-temperature oxidation strength and plastic resistance, making this type of roll particularly suitable for hot rolling of steel.
     
     

    Mechanical properties

    roll surface hardness

    HSD65-85

    Core hardness

    HSD35-48

    core tensile strength

    ≥ 450MPa

    C

    Si

    Mn

    Cr

    Ni

    Mo

    2.4/3.0

    0.4/0.6

    0.8/1.2

    16.0/20.0

    0.8/1.5

    0.8/2.0

    It is mainly used for the front 3 and 4 stands of finishing rolling stand of hot strip rolling mill, and can also be used for the rear stand of rough rolling.

     

    Key words:
    • 离心高铬铸铁轧辊

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