Wire – Hastelloy® Alloy X

Wire – Hastelloy® Alloy X

Hastelloy® Alloy X

UNS N06002
W. Nr  2.4665


Land-based Gas Turbine, High Temperature fixtures, Petrochemical Applications


HASTELLOY® alloy X is a nickel-chromium-iron-molybdenum alloy that possesses an exceptional combination of oxidation resistance, fabricability and high-temperature strength. Alloy X exhibits good ductility after prolonged exposure to high temperatures. HASTELLOY® X has excellent hot and cold formability and can be welded readily by a variety of techniques.

Industries Supplied

Aerospace, Automotive, Industrial Heating, Chemical Processing

Nominal Composition

C: 0.05 – 0.15
Mn: 1.0 max
Si: 1.00 max
P: 0.040 max
S: 0.030 max
Ni: 47 (bal) min
Cr: 20.50 – 23.0
Co: 0.50 – 2.50
Mo: 8.00 – 10.00
W: 0.20 – 1.00
Fe: 17.00 – 20.00
Al: 0.50 max
Ti: 0.15 max

Physical Properties

Density: 0.297 lb/in3, (8.22 g/cm3)

Modulus of Elasticity (E):
At 70°F (20°C): 29.8 x 103 ksi (205 GPa)

Modulus of Rigidity (G):
At 70°F (20°C): 11.3 x 103 ksi (77.6 GPa)

Coefficient of Expansion:
8.1 µin/in-°F (70-1000°F)
14.5 µm/m-°C (20-538°C)

Electrical Resistivity: 45.4 µohm-in, (17.87 µohm-cm)

Thermal Conductivity: 63 Btu-in/ft2-hr-°F, 9.2 W/m-°C

Applicable Specifications

Wire & Bar: AMS 5754, AMS 5798, DMD 0491, GE B21B111, ASTM B572

Typical Mechanical Properties

  • Annealed
    • Heat Treatment: Per Specifications
    • Tensile Strength: 110-135 ksi
    • Suggested Operating Conditions: -300°F to 2200°F (-184°C to 1205°C)
  • Spring Temper

    • Heat Treatment: None
    • Tensile Strength: 200 ksi min
    • Suggested Operating Conditions: -300°F to 2200°F (-184°C to 1205°C)

Hastelloy® is a registered trademark of Haynes International, Inc.

For further information Contact:

Contact Us
Phone: 1 847 695 1900
Elgiloy Specialty Metals – Wire Products
356 N.Cross Street
Sycamore, IL 60178 USA

Limitation of Liability and Disclaimer of Warranty:
• The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
• Applications may be discussed, however, Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, does not recommend or endorse any material for any particular end use or application.
• The data included in this data sheet are typical values and may vary.
• Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.
• In no event will Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.