Nickel Superalloy Waspaloy

Technical Data Sheet

Chemical Composition Limits    
Weight % Cr B Zr Al Ti Mo Co Cu Fe S Si Mn C P Ni
Waspaloy 18-21 0.003-00.1 0.02-0.12 1.2-1.6 2.75-3.25 3.5-5.0 12-15 0.50 max 2 max 0.030 max 0.75 max 1 max 0.02-0.10 max 0.030 max Bal

WASPALOY is a nickel based age hardenable alloy that possesses high temperature strength while still having a good corrosion resistance, especially to oxidation. WASPALOY can be used at temperatures up to 650°C (1200°F) which is critical rotating applications. WASPALOY is used in gas turbine engine components, missile systems, shafts, spacers, seals, rings, casings, fasteners and many other uses in engine hardware, airframe assemblies.

Typical Mechanical Properties

Material Condtion Thickness Temp Tensile Strength ksi Yield Strength ksi Elongation in 4D Hardness HRC
Sheet Sol Treated, Stabilization + Precipitation HT 0-0.020" Room 170 110 15 34-44
Sheet Sol Treated, Stabilization + Precipitation HT 0-0.020" 1000°F 145 100 13  
Sheet Sol Treated, Stabilization + Precipitation HT over 0.020" Room 175 115 20 34-44
Sheet Sol Treated, Stabilization + Precipitation HT over 0.020" 1000°F 150 105 15  

Properties as per AMS 5544. Heat Treatment is as follows:
Annealing 1975°F / 30 mins and Air Cool
Solution Heat Treatment 1825°F / 2hrs and Air Cool
Stabilization Heat Treatment 1550°F /4hrs and Air Cool
Precipitation Heat Treatment 1400°F / 16 hrs and Air Cool

Bar Properties

Properties as per AMS 5708 type 2 (capable of AMS 5709) Heat Treatment is as follows
Solution Treat 1900 - 1975°F / 1-4 hours and Air Cool
Resulting hardness not higher than 302HB
Stabilization Heat Treatment Heat to 1550°F / 4 hrs and Air Cool
Precipitaion Heat Treatment Heat to 1400°F / 16 hrs and Air Cool
Resulting hardness 32-42 HRC

WASPALOY is available in Round Bar, Flat Bar, Forging Stock, Extruded Section, Wire, Plate, Sheet, Strip and Welding Wire. For all stock availability contact Sales.

Rod, Bar, Wire and Forging Stock
ASTM B 637, ISO 9723, ISO 9724, ISO 9725, AMS 5704, AMS 5706, AMS 5707, AMS 5708, AMS 5709, AMS 5828, MAM 5706, AECMA PrEN 2193, AECMA PrEN 2194, AECMA PrEN 2406, AECMA PrEN 2958, AECMA PrEN 2959, AECMA PrEN 2960, AECMA PrEN 3220.

Plate, Sheet and Strip
AMS 5544, AECMA PrEN 2195

UNS N07001, W. Nr 2.4654, MSRR 7192

At Aircraft Materials all stock items can be shipped out within 24 hours, usually within the same day. Even cutting orders for bar or sheet can be processed and dispatched the same day, and for time-critical situations such as AOGs, we have a dedicated AOG service desk ready to help (

Thanks to our global logistics network we can source from anywhere in the world in just a few days. We use a range of transport partners to enable us to ship overnight within the U.K. and Europe and provide fast shipping solutions to the rest of the world. If your requirement is urgent we can offer a priority shipping service, but also if time is not so critical we can offer more cost-effective options to ensure you get the best value for money. To find out more about our services click here.

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

Sell your Stock Online at