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Centrifugal composite, conventional semi-steel rolls and roll rings

The carbon content is between 1.3 and 2.3, and the microstructure is composed of matrix and carbide, depending on the content of alloying elements and heat treatment. The matrix structure is pearlite or bainite, respectively. Chromium is a carbide stabilizing element, molybdenum can improve high temperature performance, adding nickel can strengthen the matrix. The semi-steel roll has the characteristics of small hardness drop, good wear resistance, good high temperature performance, and ability to withstand large loads.

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  • Product Description
    • Commodity name: Centrifugal composite, conventional semi-steel rolls and roll rings
    • Commodity ID: 1242871230482763776

    The carbon content is between 1.3 and 2.3, and the microstructure is composed of matrix and carbide, depending on the content of alloying elements and heat treatment. The matrix structure is pearlite or bainite, respectively. Chromium is a carbide stabilizing element, molybdenum can improve high temperature performance, adding nickel can strengthen the matrix. The semi-steel roll has the characteristics of small hardness drop, good wear resistance, good high temperature performance, and ability to withstand large loads.

    The carbon content is between 1.3 and 2.3, and the microstructure is composed of matrix and carbide, depending on the content of alloying elements and heat treatment. The matrix structure is pearlite or bainite, respectively. Chromium is a carbide stabilizing element, molybdenum can improve high temperature performance, adding nickel can strengthen the matrix. The semi-steel roll has the characteristics of small hardness drop, good wear resistance, good high temperature performance, and ability to withstand large loads.
     
     

    Mechanical properties

    centrifugal compounding

    normal law

    roll surface hardness

    HSD 40-60

    HSD 40-60

    roll neck hardness

    HSD 35-50

    HSD 40-55

    core tensile strength

    ≥ 450MPa

    ≥ 420MPa

    C

    Si

    Mn

    Ni

    Cr

    Mo

    1.3/2.3

    0.3/0.6

    0.6/1.2

    ≥ 0.2

    0.8/1.6

    0.2/0.6

    It is mainly used for finishing rolling front frame of section steel rolling mill and hot strip steel rolling mill, and can also be used for rough rolling and middle rolling frame of bar and wire rod rolling mill.
     

     

    Key words:
    • 离心复合、常法半钢轧辊和辊环

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