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Alloy 230

A nickel-chromium-tungsten-molybdenum grade, Alloy 230 has outstanding oxidation resistance up to 1149 °C.

Alloy 230 has excellent long-term resistance to oxidation and thermal stability. In addition, the alloy also has good resistance to nitriding and carburising environments.


Product formSize range fromSize range to
Alloy 230 round bar12.7 mm152.4 mm
Alloy 230 sheet & plate0.4 mm38.1 mm

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    Round Bar

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    Sheet & Plate

Chemical Analysis



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Perfect for applications in the Power Generation industry

Alloy 230 can be used in a variety of applications including:

  • Transition ducts on turbine engines
  • Combustion linings on turbine engines
  • Furnace retorts
  • Burner flame shrouds
  • Vacuum heat treat fixtures
  • Chains and fixtures
  • Nitriding furnace internals
  • Sparger tubes and recuperative internals

About Alloy 230

Alloy 230 has outstanding oxidation resistance and superior strength up to 1149 °C. Comparable to Alloy 600, Alloy 230 exhibits excellent nitriding and carburising resistance. The alloy is one of the most nitriding-resistant materials available.

Alloy 230 has excellent creep and fatigue resistance combined with long-term stability. In addition the alloy is resistance to grain coarsening when subject to elevated temperatures for prolonged periods.

Alloy 230 is easily fabricated and welded. As a result of its good ductility, Alloy 230 is readily formed by cold working.


8.968 g/cm³
Melting range:


UNS Number:
Werkstoff Number:
ASTM B435, B564, B572, B619, B622, B626, B366, AMS 5878, 5981
Download the Alloy 230 Data Sheet Download

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