Waspaloy (UNS N07001 / W.Nr. 2.4654)

Waspaloy (UNS N07001 / W. Nr. 2.4654) is a nickel base, age hardenable superalloy with excellent high temperature strength and good corrosion resistance, notably to oxidation, at service temperatures up to 1200°F (650°C) for critical rotating applications, and up to 1600°F (870°C) for other, less demanding, applications. The alloy’s high-temperature strength is derived from its solid solution strengthening elements, molybdenum, cobalt and chromium, and its age hardening elements, aluminum and titanium. Its strength and stability ranges are higher than those typically available for alloy 718.cc

Equivalent Grades


Chemical Composition, %


Typical Physical and Mechanical Properties (RT, Solution annealed)

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

Available Products and Specifications

Rod, Bar, Wire and ForgingsAMS 5704, AMS 5706, AMS 5707, ASTM B637, ASME SB637
Plate, Sheet and StripAMS 5544
Pipe and Tube
Welding Product


  • High strength
  • Oxidation resistant to 980℃


Waspaloy is used for gas turbine engine components that call for considerable strength and corrosion resistance at high operating temperatures. Current and potential applications include compressor and rotor discs, shafts, spacers, seals, rings and casings, fasteners and other miscellaneous engine hardware, airframe assemblies and missile systems.