Carbo-Austempered™ Steel

Carbo-Austempered™ Steel

This process develops a tough, high-carbon, bainitic case on high performance components.

Carbo-Austempered parts have remarkable impact properties that are superior to either neutral hardened or carburized steels. Carbo-Austempering is routinely applied to steel gears, shafts, and power transmission parts that undergo periodic overloading in service.

The Carbo-Austempering™ process is a high performance steel heat treatment that combines a high carbon bainitic case with either a bainitic or tempered martensitic core to produce a component with an exceptional combination of strength and toughness.

Carbo-Austempered ™ steel exhibits:

  • Higher tensile strength
  • Increased wear resistance
  • Greatly improved impact properties
  • Increased elongation
  • Lower distortion
  • No cracking during quenching
  • Increased fatigue strength (in high load, low cycle fatigue application)

Typical applications of Carbo-Austempered™  Steel include:

  • Transmission shafts
  • Output Shafts
  • Pump Shafts
  • Differential Pinions
  • Spline Drives
  • Parking Pawls.