Waspaloy

Available in any of the 'profile options'

This age hardenable nickel base super alloy has very good strength in temperatures up to about 980^oC (1800^oF). It’s strength is generally comparable to that of Rene 41 and is generally superior to that of Alloy 718 at temperatures exceeding 650 – 705^oC (1200 – 1300^oF).

Waspaloy is also known as Alloy 685.

Chemical Composition

Specifications

Designations

Key Features

Typical Applications

Element	Min %	Max %
C	0.02	0.10
Mn	–	0.10
Si	–	0.10
P	–	0.010
S	–	0.010
Cr	18.00	21.00
Co	12.00	15.00
Mo	3.50	5.00
Ti	2.75	3.50
Al	1.20	1.60
B	0.003	0.010
Zr	–	0.04
Fe	–	2.00
Cu	–	0.10
Ni	bal

AMS 5544
AMS 5706
AMS 5708
AMS 5828
ASTM B637

W.Nr 2.4654
UNS N07001
AWS 170

Very high strength at elevated temperatures
Strength is generally comparable to that of Rene 41 and generally superior to Inconel 718
Age hardenable
High temperature dynamic applications^{^^}

Gas turbine engine parts
Aerospace components
Springs and fasteners

Density	8.16 g/cm³	0.295 lb/in³
Melting Point	1330°C	2425°F
Coefficient of Expansion	12.2 μm/m °C (20 – 100°C)	6.8 x 10^-6 in/in °F (70 – 212°F)
Modulus of Rigidity	81 kN/mm²	11750 ksi
Modulus of Elasticity	211.0 kN/mm²	30600 ksi

Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire	Type	Temperature		Time (Hr)	Cooling
Condition as supplied by Alloy Wire	Type	°C	°F	Time (Hr)	Cooling
Annealed	Stabilize Age Harden	843 760	1550 1400	4 16	Air Air
Spring Temper	Anneal Stabilize Age Harden	1050 843 760	1920 1550 1400	4 4 16	Air Air Air

Properties
Condition	Approx. tensile strength		Approx. operating temperature depending on load^^ and environment
Condition	N/mm²	ksi	°C	°F
Solution Annealed	800 – 1100	116 – 159	–	–
Solution Annealed + Aged	1300 – 1500	189 – 218	up to +550	up to +1020
Spring Temper	1300 – 1600	189 – 232	–	–
Spring Temper + Annealed + Aged	1300 – 1500	189 – 218	up to +550	up to +1020