Alloy HX, also known as Hastelloy® X or Inconel® HX, is a nickel-based superalloy with exceptional high-temperature strength and oxidation resistance. It is designed to withstand extreme environments and is commonly used in gas turbine engine components, aerospace applications, and high-temperature structural applications.
One of the key features of Alloy HX is its exceptional resistance
to high-temperature oxidation, corrosion, and carburization. It can withstand aggressive environments, including sulfuric acid, nitric acid, hydrochloric acid, saltwater, and oxidizing/ reducing conditions. This corrosion resistance makes it suitable for applications exposed to harsh chemical and high-temperature environments.
The alloy finds extensive applications in gas turbine engine components, aerospace applications such as afterburners and
jet engine tailpipes, as well as chemical processing equipment, and nuclear industry systems.
Available tube product forms
Typical Applications
- Combustor Cans
- Transition Ducts
- Afterburner Components
- Jet Engine Tailpipes
- Heat Treatment
Typical Manufacturing Specifications
- AMS 5588
- AMS 5754
- ASTM B435
- Also individual customer specifications
Industries predominantly using this grade
Technical Data
Mechanical Properties (Annealed)
| Tensile Strength |
120,000 psi (827 MPa) minimum |
| Yield Strength |
50,000 psi (345 MPa) minimum |
| Elongation |
35% minimum (in 2-inch gauge length) |
| Hardness |
HRB 98 (max) |
Physical Properties
| Density |
0.297 lb/in3 |
| Melting Range |
2300-2470°F (1260-1355°C) |
| Thermal Conductivity |
63 BTU-in/ft2-h (at 68°F) |
| Electrical Resistivity |
45.21 μΩ-in (at 68°F) |
| Solution Temperature |
2150°F (1077°C) |
| Modulus of Elasticity |
30 x 10^6 psi |
Chemical Composition (% by weight)
|
Element |
Min |
Max |
|
Ni |
47.5 |
52.5 |
|
Cr |
20.5 |
23 |
|
Mo |
8 |
10 |
|
Fe |
17 |
20 |
|
Co |
1 |
2.5 |
|
W |
0.2 |
1 |
|
C |
- |
0.2 |
|
Mn |
- |
1.0 |
|
Si |
- |
1 |
|
P |
- |
0.04 |
|
S |
- |
0.03 |