Nickel alloy Waspaloy® – properties, applications and technical data
Waspaloy is a nickel-based, age-hardenable superalloy developed for applications that require very high strength and good corrosion and oxidation resistance at high temperatures.
The alloy is mainly used in gas turbine engines and the aerospace industry where components are exposed to high temperatures, mechanical stress and aggressive environments.
Waspaloy retains its strength at temperatures up to approximately 650°C in critical rotating components and up to approximately 870°C in less stressed components.
Properties of Waspaloy
Waspaloy is a nickel-based superalloy whose high temperature strength comes from a combination of solid solution strengthening and age hardening.
Molybdenum, cobalt and chromium contribute to solid solution strengthening while aluminum and titanium allow for age hardening, which provides very high strength and stability at high temperatures.
- Type: age hardenable nickel-based superalloy
- Alloy: Ni-Cr-Co-Mo-Ti-Al
- Structure: age hardenable nickel-based superalloy
- Designations: Waspaloy, UNS N07001, W.Nr. 2.4654
- Typical composition: Ni ~balance, Cr ~19%, Co ~13%, Mo ~4%, Ti ~3%, Al ~1.4%
Advantages
- Very high strength at high temperatures
- Good oxidation resistance
- Good resistance to creep and fatigue
- Stable structure at high temperatures
- Good corrosion resistance in gas turbine environments
Limitations
- Higher material cost than standard nickel-based alloys
- Machining can be more demanding
- Heat treatment required to achieve optimal strength
Common product forms for Waspaloy
- Round bar
- Forgings
- Sheet and strip
- Fasteners
- Special dimensions according to drawing
Typical components manufactured in Waspaloy
- Compressor discs
- Rotor discs
- Shafts
- Seals and rings
- Turbine casings
- Fasteners for aircraft and turbine systems
- Components in aircraft and missile systems
Corrosion and oxidation resistance
Waspaloy has good oxidation resistance and performs well in environments with frequent thermal cycling and continuous exposure to high temperatures.
The alloy has demonstrated good performance in gas turbine atmospheres and in marine environments with salt spray.
Environments where Waspaloy performs well
- Gas turbine engines
- Aerospace industry
- High temperature environments
- Applications with cyclic thermal loading
Environments to avoid
- Applications where simpler alloys provide adequate performance
- Environments where corrosion resistance is more important than high temperature strength
Technical data
| Yield strength (0.2%) |
~800–1000 MPa |
| Tensile strength |
~1000–1200 MPa |
| Elongation |
~15–30 % |
| Density |
~8.19 g/cm³ |
| Modulus of elasticity |
~210 GPa |
| Recommended working temperature |
up to ~650°C in rotating components |
| Oxidation resistance |
up to ~1038°C depending on environment |
With a global network of suppliers, we can offer Waspaloy in technical dimensions for demanding aerospace and turbine applications.
Contact us for price, availability and technical advice.
Waspaloy supplier with certified quality
HARALD PIHL is one of Europe's largest suppliers of special alloys, including high-temperature alloys such as Waspaloy.
With over 100 years of experience in the metal industry, we deliver materials with full traceability and certification according to EN 10204 3.1 / 3.2 as well as relevant ASTM and ISO standards.
Cutting, testing and quality assurance are carried out in-house to ensure the right tolerances and fast global delivery for technically demanding projects.
- Europe's largest stock of nickel and titanium alloys
- Nickel-based high-temperature alloys from stock
- ASTM / ISO standards
- Top quality for safety-critical applications
- Fast global delivery
- Full material certification (EN 10204 3.1 / 3.2)
- Over 100 years in the metal industry
- Nickel and titanium experts
