Duroxite AP Electrode

Duroxite® AP Electrode

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    General Product Description

    Duroxite® AP electrode is a solid cored electrode designed for components experiencing metal-to-metal wear, metal-to-earth wear, impact and high abrasion applications. It has an extruded coating containing the alloy elements. The deposit offers a good balance of impact and abrasion resistance. Deposits are forgeable but not readily machinable. Duroxite® AP electrode has a good weldability and can be applied in all positions. Duroxite® AP electrode can be applied to carbon, low alloy, manganese steels and other steel substrates. It is suitable for single and multiple-layer up to three layers deposit.

    Key Benefits

    • Duroxite® AP electrode is a hardfacing electrode for all positions welding.
    • The Duroxite® AP electrode deposited overlay consists of medium alloy martensite for good abrasion and impact resistance.

    Typical Applications

    Duroxite® AP electrode has many applications where moderate/high impact and high abrasion wear conditions prevail. Examples: Bucket teeth, tillage tools, bucket lips, bucket sides, cutting edges, sand dredge equipment, dragline buckets, conveyor chutes, grizzly bars, screw flights, metal shredders, sliding metal parts, tire shredder knives, extruder screws, tamper feet, churn drills, muller tires. Especially applicable for all-positional welding and re-instating of hardfacing sealing runs on clad wear plate fabrications.

    Standard Dimensions

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      Standard diameter
      Metric
      4.0 mm
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        Standard diameter
        Metric
        4.0 mm

        Mechanical Properties

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          Typical all-weld metal surface Hardness 1)
          Hardness: 2-layer deposit on mild steel Hardness: 3-layer deposit on mild steel
          55 - 60 HRC 55 - 60 HRC
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            Typical all-weld metal surface Hardness 1)

            Hardness: 2-layer deposit on mild steel
            55 - 60 HRC
            Typical all-weld metal surface Hardness 1)

            Hardness: 3-layer deposit on mild steel
            55 - 60 HRC
            1) Surface hardness is measured on machined flat surface just below overlay surface.

            Chemical Composition

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              Typical all-weld metal analysis (Weight %)
              C
              (%)              		 Mn
              (%)              		 Si
              (%)              		 Cr
              (%)              		 Mo
              (%)              		 Fe
              0.5 0.6 Up to 0.6 5.2 1.3 Balance
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                Welding recommendations

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                  Welding conditions
                  Current type Welding positions
                  DCEP (Direct current electrode positive) All Positions including flat, horizontal, vertical, overhead
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                    Welding conditions

                    Current type
                    DCEP (Direct current electrode positive)
                    Welding conditions

                    Welding positions
                    All Positions including flat, horizontal, vertical, overhead

                    Welding parameters recommendations

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                      Diameter
                      Amperage (A)
                      Metric Range Optimum
                      4.0 mm0.1562 mm 140 - 220 170
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                        Recovery: 90%

                        Delivery Conditions

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                          Standard package
                          Weight
                          Type Metric
                          Box 20 kg
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                            Standard package
                            Type
                            Box
                            Weight

                            Metric
                            20 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.