Duroxite® 200

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    Descrierea generală a produsului

    Duroxite® 200 consists of specially formulated abrasive materials deposited on mild steel backing plate that is suitable for extremely severe abrasive wear and high to moderate impact applications. The overlay material is composed of primary chromium-rich carbides and refined multiple-alloy complex carbides dispersed evenly in a ductile eutectic austenite matrix. Duroxite® 200 is available in single and double layers.

    Key Benefits

    • Multiple-alloy complex carbides are harder and finer than chromium carbides and interlock between the primary chromium carbides to provide better wear resistance
    • Longer service life and better wear resistance compared to traditional chromium carbide overlay plate
    • Double-layer overlay maintains full wear resistance up to 600° C (1100° F)

    Typical Applications

    Duroxite® 200 is widely used many industries including mining, cement, and steel. Some specific applications include:

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      Mining Chutes, liner plates, conveyors sides, underground mine skips
      Cement Cement furnace components, sinter plant parts, fan blades, mixer blades, crews, gyratory mantles, coal and cement pulverizer rolls, raw material crushing components, molding panels
      Steel Ore sintering, crushing, riddling, blast furnace hoppers, throats, and ovens
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        Mining
        Chutes, liner plates, conveyors sides, underground mine skips
        Cement
        Cement furnace components, sinter plant parts, fan blades, mixer blades, crews, gyratory mantles, coal and cement pulverizer rolls, raw material crushing components, molding panels
        Steel
        Ore sintering, crushing, riddling, blast furnace hoppers, throats, and ovens

        For more information on applications see the Duroxite® Product brochure.

        Available Dimensions

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          Standard overlay thicknesses
          Single pass
          Multiple Passes
          Metric unit Metric unit
          3 mm on 6 mm 6 mm on 6 mm
          6 mm on 10 mm
          10 mm on 10 mm
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            Standard overlay thicknesses

            Single pass

            Metric unit
            3 mm on 6 mm
            Standard overlay thicknesses

            Multiple Passes

            Metric unit
            6 mm on 6 mm
            Standard overlay thicknesses

            Single pass

            Metric unit
            Standard overlay thicknesses

            Multiple Passes

            Metric unit
            6 mm on 10 mm
            Standard overlay thicknesses

            Single pass

            Metric unit
            Standard overlay thicknesses

            Multiple Passes

            Metric unit
            10 mm on 10 mm

            Other plate sizes and custom thicknesses can be produced upon request.

            Standard plate sizes

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              Metric unit Imperial unit
              1.2 m x 2.4 m 4" x 8"
              1.4 m x 3.0 m 4.6" x 10"
              1.5 m x 3.0 m 5" x 10"
              1.8 m x 3.0 m 6" x 10"
              2.4 m x 3.0 m 8" x 10"
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                Metric unit
                1.2 m x 2.4 m
                Imperial unit
                4" x 8"
                Metric unit
                1.4 m x 3.0 m
                Imperial unit
                4.6" x 10"
                Metric unit
                1.5 m x 3.0 m
                Imperial unit
                5" x 10"
                Metric unit
                1.8 m x 3.0 m
                Imperial unit
                6" x 10"
                Metric unit
                2.4 m x 3.0 m
                Imperial unit
                8" x 10"

                Other plate sizes and custom thicknesses can be produced upon request.

                Proprietăți mecanice

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                  ASTM G65 – Procedure A weight loss 2)
                  Number of overlay passes Typical surface hardness1)

                  (HRC)
                  Typical surface hardness1)

                  (HV)
                  Surface
                  (g max)
                  75 % depth of overlay 3)
                  (g max)
                  Single pass 57 - 60 630 - 700 0.19 0.19
                  Double passes 60 - 65 700 - 850 0.12 0.12
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                    1) Surface hardness is measured on machined flat surface just below overlay surface.

                    2) ASTM G65 - Procedure A weight loss, is a standard test measuring sliding abrasion resistance using a dry sand/rubber wheel apparatus. ASTM G65-Procedure A is the most severe test method.

                    3) ASTM G65 - Procedure A weight loss, wear test is conducted at 75% depth of the overlay materials to ensure consistently good wear resistance from the top surface through to the depth of 75% of the overlay.

                    Microstructure

                    The microstructure of Duroxite® 200 contains primary chromium-rich carbides and refined multiple-alloy complex carbides with a typical hardness of 2500 to 3000 HK4) dispersed evenly in a ductile eutectic austenite matrix. The typical volume fraction of primary chromium-rich carbides is maintained between 30 to 40% with 7 to 10% of multi-alloy complex carbides.

                    4) HK is the Knoop microhardness used primarily for very brittle materials or thin sheets.

                    Toleranțe

                    Grosimea

                    Overall and overlay thickness tolerances can be guaranteed within ±10% of specified thickness.

                    Planeitate

                    Plate flatness tolerance can be guaranteed within ±3 mm (±1/8”) over 1.5 m (5’) plate length for plate dimensions equal to or less than 1.5 m (5’) x 3.0 m (10’). For plates greater than 1.5 m (5’) wide by 3.0 m (10’) long, the following flatness guarantees apply.

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                      Standard overlay thicknesses
                      Flatness tolerance over 1.5 m plate length,
                      Metric unit
                      Metric unit 1.8 m x 3.0 m 2.4 m x 3.0 m
                      5 mm on 8 mm 25 41
                      6 mm on 6 mm 25
                      10 mm on 10 mm 12 25
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                        For custom sizes, please consult your local sales representative or Hardox Wearparts center for flatness guarantees.

                        Condiții de livrare

                        Duroxite® 200 is normally supplied in an as-welded condition, but can also be supplied in a ground condition upon request.

                        Fabricare și alte recomandări

                        Welding, cutting, forming and machining

                        Recommendations can be found in the Duroxite® Products brochure, or consult your local technical support representative.

                        Safety precautions

                        When welding or cutting Duroxite® products, smoke is produced containing harmful fumes and gases that are chemically highly complex and difficult to easily classify. The major toxic component in the fumes and gases produced in the process is hexavalent chromium. The proper exhaust ventilation equipment and fume-extraction torches are recommended, as well as suitable protective clothing and respiratory protection for operators.