Duroxite® 400

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General Product Description

Duroxite® 400 is a specially formulated hardfacing overlay pin engineered and designed to withstand severe heat and metal-to-metal wear applications. Its exceptional quality comes from the precise control and selection of raw materials as well as proprietary processing. The maximum working temperature for the product is 480 °C (900 °F). The work-hardening hardness of the Duroxite® overlay pin can reach up to 58 HRC in service. The Duroxite® 400 overlay pin matches with 12% Manganese Bushings. This Bearing System is expected to last longer than traditional hardened surfaces used such as induction heated and quenched 4140 pins.

Key Benefits

  • Provides superior wear resistance in overlay and a tough inner core
  • Performs well when torqueing and surface compression are involved
  • Designed to outlast original equipment and manganese pins

Typical Applications

Duroxite® 400 was originally developed for dragline bucket components, but has gained wide acceptance in other applications as well. It is also used for heavy mining or industrial equipment, such as dragline shovels, clam shell buckets, sheave pins, backhoe pins, and crusher shafts.

Overlay pins can be machined to meet the requirements of any specific application. For more information on applications see the Duroxite® Product brochure.

Standard Dimensions

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    Standard diameters
    Standard pin length
    Metric unit Metric unit
    For 127 mm Up to 1.22 m
    For 152 - 280 mm Up to 2.74 m
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    Comparison

      Standard diameters

      Metric unit
      For 127 mm
      Standard pin length

      Metric unit
      Up to 1.22 m
      Standard diameters

      Metric unit
      For 152 - 280 mm
      Standard pin length

      Metric unit
      Up to 2.74 m

      Mechanical Properties

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        Number of overlay passes Typical as-welded surface hardness1)
        (HRC)
        Typical as-welded surface hardness1)
        (HV)
        Work hardening hardness
        (HRC)
        Work hardening hardness
        (HV)
        Multiple passes 52 - 54 540 - 570 Up to 58 Up to 650
        Compare parameters

        Select one parameter to compare

        Comparison

          1) Surface hardness is measured on machined flat surface just below overlay surface.

          Tolerances

          Dimensions

          Diameter of Duroxite® 400 can be guaranteed within the typical tolerances of ±0.127 mm (±0.005”).

          Roundness

          Roundness tolerance can be guaranteed within ±0.254 mm (±0.010”).

          Safety precautions

          When welding or cutting Duroxite® products, gases and harmful fumes are produced that are chemically complex and difficult to classify. The major toxic component in the fumes 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.