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PRODUCT MATERIAL

WASPALOY®Download

 Waspaloy® is an age hardening nickel base superalloy with useful strength at temperatures up to 1400-1600° F, and good oxidation resistance in gas turbine engine atmospheres up to 1600° F. The creep-rupture strength of Waspaloy is superior to that of alloy 718 at temperatures above 1150-1200° F. Short time hot tensile strength is inferior to alloy 718 at temperatures up to 1350° F

Welding is difficult, and best performed on material in the solution annealed condition. Limit currents and the size of the fusion zone. Rapid cooling from welding is necessary to minimize aging stresses. Copper backup bars or water cooled fixtures are desirable. After welding, the fabrication should be solution treated, using rapid heating and cooling rates through the aging range. Follow anneal by stabilization and aging treatments.

A typical heat treatment is a solution heat teat at 1825° F for 2 hours, air cool. Stabilize heat treat at 1550° F for 4 hours, air cool. Precipitation heat treat at 1400° F for 16 hours, air cool.
Chemistry

 

Cr

Ni

Mo

Co

Al

Ti

B

C

Zr

Fe

Mn

Si

P

S

Cu

MIN

18.00

--

3.50

12.00

1.20

2.75

0.003

0.02

0.02

--

--

--

--

--

--

MAX

21.00

Balance

5.00

15.00

1.60

3.25

0.01

0.10

0.08

2.00

0.10

0.15

0.015

0.015

0.10

Specifications
AMS 5544, AMS 5708, AMS 5828
EN 2.4654
UNS N07001
Werkstoff 2.4654
Inventory
WASPALOY® Sheet, WASPALOY® Weld Wire
Common Trade Names
WASPALOY®
Features
• High strength
• Oxidation resistant to 1750° F
Applications
• Shafts
• Fasteners
Physical Properties
Density: 0.296 lb/in3
Melting Range: 2425 - 2475° F

Temperature, ° F

400

1000

1200

1400

1600

1800

Coefficient* of Thermal Expansion,
in/in° F x 10-6

7.0

7.8

8.1

8.4

8.9

9.7

Thermal Conductivity
Btu • ft/ft2 • hr • °F

7.3

10.4

11.6

12.7

13.9

-

Modulus of Elasticity Dynamic,
psi x 106

30

27

26

24

23

21

* 70° F to indicated temperature.
Mechanical Properties
Representative Tensile Properties Heat Treated, Sheet

Temperature, ° F

70

1200

1400

1600

Ultimate Tensile Strength, ksi

193

173

140

79

0.2% Yield Strength, ksi

132

112

112

60

Elongation, %

27

21

12

12

Hardness, Rockwell C

34-40

-

-

-

Typical Rupture Strength, Heat Treated, Sheet - Stress to Rupture at Indicated Time

Temperature,° F

1200

1300

1400

1500

1600

100 Hours, ksi

92

75

53

32

18

1,000 Hours, ksi

80

57

35

19

10