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A nickel-chromium aged-hardenable superalloy, WASPALOY® offers excellent high temperature strength and oxidation resistance.

With the addition of aluminium and titanium, WASPALOY® has excellent strength at temperatures up to 650°C for critical gas turbine engine applications and good oxidation resistance for non-rotating parts in gas turbine applications up to 870°C.


Product from Size range from Size range to
WASPALOY® round bar 19 mm 187 mm
WASPALOY® sheet & plate 0.3048 mm 19.05 mm
WASPALOY® welding wire 0.4 mm 1.6 mm

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    Welding Consumables

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    Sheet & Plate

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    Round Bar

Chemical Analysis

% Cr Ni Mo Co Al Ti B C Zr Fe Mn Si P S Cu
Min 18 - 3.50 12 1.20 2.75 0.003 0.02 0.02 - - - - - -
Max 21 Balance 5 15 1.60 3.25 0.01 0.10 0.08 2.00 0.10 0.15 0.015 0.015 0.10


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Perfect for applications in the Aerospace industry

WASPALOY® can be used in a variety of applications including:

  • Shafts
  • Fasteners
  • Compressors and rotor discs
  • Spacers, seals, rings and casings
  • Airframe assembly and missile systems


WASPALOY® is an alloy of choice for both rotating and non-rotating parts in aerospace gas turbines due to its high strength and oxidation resistance at elevated temperatures.

Welding of WASPALOY® is difficult and best performed on material in the solution annealed condition. Limiting the amperage whilst minimising the fusion zone, combined with rapid cooling from welding, is necessary to minimize aging stresses. After welding, the fabrication should be solution treated, using rapid heating and cooling rates through the aging range. This should be followed by a stabilization and aging treatment.

Waspaloy® is the registered trademark of United Technologies Corp.


8.193 g/cm³
Melting range:


UNS Number:
Werkstoff Number:
AMS 5544, 5828, 5708
Download the WASPALOY® Data Sheet Download

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