Haynes 230 (UNS N06230 / W.Nr 2.4733)

Haynes 230 (UNS N06230 / W.Nr. 2.4733) alloy is a nickel-chromium-tungsten-molybdenum alloy that combines excellent high-temperature strength, outstanding resistance to oxidizing environments up to1149℃ for prolonged exposures, premier resistance to nitriding environments, and excellent long-term thermal stability. It is readily fabricated and formed, and is castable. Other attractive features include lower thermal expansion characteristics than most high-temperature alloys, and a pronounced resistance to grain coarsening with prolonged exposure to high temperatures.

Equivalent Grades

Haynes 230GH3044ХН60ВТHaynes 230N06230NiCr22W14Mo2.4733

Chemical Composition, %

Haynes 2300.05-0.150.25-0.750.30-1.00≤0.03≤0.01520.0-24.0Bal≤5.01.0-3.013.0-15.00.2-0.5≤0.1≤0.500.005-0.05≤0.015≤3.0

Typical Physical and Mechanical Properties (RT, Solution annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaELongation, %Hardness, HRB

Available Products and Specifications

Rod, Bar, Wire and ForgingsAMS 5891, ASME SB572, ASTM B572, ASTM B564, AMS 5839
Plate, Sheet and StripAMS 5878, ASTM B435, ASME SB435
Pipe and TubeASME SB619, ASME SB626, ASTM B619, ASTM B626
Welding ProductA5.14 / ERNiCrWMo-1, A5.11 / ENiCrWMo-1
OthersDIN 17744, NiCr22W14Mo


Excellent High-Temperature Strength, Thermal Stability, and Environment Resistance


  • Aerospace gas turbine parts
  • Combustor cans
  • Transistor ducts
  • Flameholders
  • Thermocouple sheaths
  • Aerospace Honeycomb
  • chemical processing
  • grill supports
  • ducts and bellows
  • industrial heating
  • furnace retorts
  • chains
  • flame shrouds
  • grates and trays