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Nickel Waspaloy

Nickel Waspaloy

Waspaloy* is a nickel-base, age-hardenable superalloy with excellent high-temperature strength and good resistance to corrosion, notably to oxidation. It is used for aerospace and gas turbine engine components 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. Applications include compressor and rotor discs, shafts, spacers, seals, rings and casings, fasteners and other miscellaneous engine hardware, airframe assemblies and missile systems.

Waspaloy* is a precipitation hardening, nickel-based alloy which has been used in elevated temperature applications. The alloy has been used for gas turbine engine parts which require considerable strength and corrosion resistance at temperatures up to 1600°F (871°C). Waspaloy* is usually vacuum-induction plus consumable electrode remelted.

Waspaloy* displays excellent resistance to corrosion by combustion products encountered in gas turbines and aircraft jet engines at temperatures up to 1600°F (871°C). Intergranular oxidation occurs at temperatures above 1600°F (871°C).

The alloy is a high strength, nickel base, precipitation hardening alloy which gains its high strength through the precipitation of gamma prime as a result of titanium and aluminum additions and through solid solution strengthening from additions of chromium, cobalt, and molybdenum. Precipitated carbides provide additional strengthening by pinning grain boundaries which reduce grain boundary sliding at elevated temperatures. The alloy is used for critical parts that require high strength at elevated temperatures. It is produced by vacuum induction melting (VIM) followed by vacuum arc remelting (VAR) and/or electroslag remelting (ESR). Applications include turbine and compressor discs, shafts, spacers, turbine cases, fasteners and other miscellaneous hardware.

These products have been used typically for parts, such as fasteners, flanges, and rings, requiring high strength up to 1500 °F and oxidation resistance up to 1750 °F (954 °C), particularly those parts which are formed or welded and then heat treated to develop required properties, but usage is not limited to such applications.

Chemical Properties

Element min max
Carbon 0.02 0.10
Manganese 0.10
Silicon 0.15
Phosphorus 0.015
Sulfur 0.015
Chromium 18.00 21.00
Cobalt 12.00 15.00
Molybdenum 3.50 5.00
Titanium 2.75 3.25
Aluminum 1.20 1.60
Zirconium 0.02 0.08
Boron 0.003 0.010
Iron 2.00
Copper 0.10
Lead 0.0005 (5 ppm)
Bismuth 0.00003 (0.3 ppm)
Selenium 0.0003 (3 ppm)
Silver 0.0005 (5 ppm)
Nickel remainder

Minimum Tensile Properties (Room Temp)

Property Value
Tensile Strength 175 ksi
Yield Strength at 0.2% Offset 120 ksi
Elongation in 4D 15%
Reduction of Area 18%

Select AMS Number:

AMS Number Alloy Type UNS Cross Ref. Spec Misc./Shape
AMS 5544 Waspaloy Nickel N07001 - Plate
AMS 5544 Waspaloy Nickel N07001 - Sheet
AMS 5544 Waspaloy Nickel N07001 - Strip
AMS 5586 Waspaloy Nickel N07001 - Tubing
AMS 5704 Waspaloy Nickel N07001 - Forging
AMS 5706 Waspaloy Nickel N07001 - Bar
AMS 5706 Waspaloy Nickel N07001 - Forging
AMS 5706 Waspaloy Nickel N07001 - Ring
AMS 5707 Waspaloy Nickel N07001 - Bar
AMS 5707 Waspaloy Nickel N07001 - Forging
AMS 5707 Waspaloy Nickel N07001 - Ring
AMS 5708 Waspaloy Nickel N07001 - Bar
AMS 5708 Waspaloy Nickel N07001 - Forging
AMS 5708 Waspaloy Nickel N07001 - Ring
AMS 5709 Waspaloy Nickel N07001 - Bar
AMS 5709 Waspaloy Nickel N07001 - Forging
AMS 5828 Waspaloy Nickel N07001 - Wire

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