Duroxite® 200 Wire

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    General Product Description

    Duroxite® 200 Wire is a flux-cored welding wire for hardfacing components subject to severe abrasive wear and moderate impact applications using an open-arc welding process. The deposit contains hard complex carbides in a tough matrix and performs exceptionally well for both fine and coarse abrasion applications. It naturally reveals stress-relief cracks after welding. Duroxite® 200 Wire is suitable for single-layer or double-layer.

    Key Benefits

    • Same wear resistance guaranteed from surface through 75% depth of overlay in multi-layer deposit.
    • Optimal alloy formulation that forms a primary chromium-rich carbide with co-existing refined multi-alloys carbides which provide a good combination of wear and impact resistance.

    Typical Applications

    Duroxite® 200 Wire is mainly designed to use for hardfacing components undergoing heavy wear by earth, sand or abrasives up to 600 ºC (1100ºF).

    Typical examples include: Sand and earthmoving equipment, ground engaged teeth, slurry pipe, railway ballast tampers, dredge buckets and lips, sand dreging parts, dragline bucket liners, crushing equipment, brick industry components, coke hammers, rippers, sizing screens, Muller tyres, catalyst lift pipes, pump impellers, fan blades, rockwool rolls, wear plates or wear parts operating at high temperature in steelmaking industry.

    Standard Dimensions

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      Standard diameter
      Metric
      1.2 mm
      1.6 mm
      2.8 mm
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        Standard diameter
        Metric
        1.2 mm
        Standard diameter
        Metric
        1.6 mm
        Standard diameter
        Metric
        2.8 mm

        Mechanical Properties

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          ASTM G65 – Procedure A weight loss 2)
          Typical all-weld metal surface hardness 1)

          Typical surface hardness
          Number of overlay passes Classifications Surface
          (g max)
          75 % depth of overlay 3)
          (g max)
          Hardness: 3-layer deposit on mild steel
          Multiple passes DIN 8555: MF 10-GF-65-GRT
          0.12 0.12 62 - 67 HRC 57 - 60 60 - 65
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            1) Surface hardness is measured on machined flat surface just below overlay surface.

            2) ASTM G65 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 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.

            Chemical Composition

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              Typical all-weld metal analysis (Weight %)
              C
              (%)
              Mn
              (%)
              Si
              (%)
              Cr
              (%)
              Nb
              (%)
              Fe
              5.3 0.2 Up to 0.2 22.0 6.5 Balance
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                Welding recommendations

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                  Welding conditions
                  Current type Shielding gas Welding positions
                  DCEP (Direct current electrode positive) None (Self-shielded) Flat, half up, half down
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                    Welding parameters recommendations

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                      Diameter
                      Amperage (A)
                      Voltage (V)
                      Stick-out
                      Metric Range Optimum Range Optimum Range Optimum
                      1.2 mm 150 - 200 180 25 - 30 28 10 mm - 20 mm 15 mm
                      1.6 mm 190 - 210 200 27.5 - 28.5 28 10 mm - 20 mm 15 mm
                      2.8 mm 290 - 310 300 29.5 - 30.5 30 15 mm - 25 mm 20 mm
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                        Recovery: 90%

                        Delivery Conditions

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                          Standard package
                          Weight
                          Type Metric
                          Spool 15 kg
                          Spool 15 kg
                          Spool 25 kg
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                            Standard package
                            Type
                            Spool
                            Weight

                            Metric
                            15 kg
                            Standard package
                            Type
                            Spool
                            Weight

                            Metric
                            15 kg
                            Standard package
                            Type
                            Spool
                            Weight

                            Metric
                            25 kg

                            Fabrication and Other Recommendations

                            The welded overlay components can be processed by welding, cutting, forming and machining. Specific recommendations can be found in the Duroxite® Product brochure or by consulting 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.