Hastelloy X Nickel-Base Superalloy – High-Temperature Strength and Corrosion Resistance
Hastelloy X (UNS N06002) is a high-performance nickel-chromium-iron-molybdenum superalloy engineered for outstanding strength at elevated temperatures and excellent resistance to oxidation and carburization. This solid-solution strengthened alloy combines reliable fabricability with strong mechanical and corrosion-resistant properties, making it ideal for demanding aerospace, industrial furnace, gas turbine, and chemical processing applications where materials face extreme heat and stress.
Hastelloy X is widely recognized for its:
Exceptional oxidation resistance at temperatures up to approximately 2200 °F (1200 °C)
High-temperature strength that maintains structural integrity under extreme heat
Good ductility and welding characteristics for fabrication and forming
Resistance to stress-corrosion cracking in petrochemical and high-temperature environments
Its carefully balanced chemistry ensures performance where many alloys would fail due to oxidation, carburization, or creep under sustained high heat.
Product Forms & Size Range
Fighter Jet Metals supplies Hastelloy X in the key product forms most needed in engineering and manufacturing
Our stocked range supports both standard and custom size requirements for high-integration projects across aerospace, energy, and industrial sectors.
HASTELLOY X Round Bar diameters range from 0.125″ to 14.00″ diameter.
Hastelloy X Flat Bar comes in a variety of thicknesses and widths. For more information please request a quote.
HASTELLOY X Plate Thickness ranges from 0.1875″ to 6.50″ Thick.
HASTELLOY X Sheet Thicknesses range from 0.002″ to .150″ Thick.
What Is Hastelloy X (UNS N06002)?
The alloy is classified according to the designation given as UNS N06002, meaning it is a nickel-base alloy with strengthening by the solid solution technique. The composition of the alloy includes the following:
Nickel (Ni) – Balance , Chromium (Cr) – 20.5-23%, Iron (Fe) – 17-20%, Molybdenum (Mo) – 8-10%
Cobalt (Co) and Tungsten (W) – Contained in controlled percentages for strengthening and oxidation resistance.
The composition of the alloy results in the combination of unique properties that few materials can compare with, especially for applications involving extreme temperatures.
The process of specifying the alloy results in the achievement of the desired properties for the material, which include the ability to withstand oxidation at extremely high temperatures as well as the achievement of the desired structural properties. This is especially true for applications where the use of conventional steels or nickel-base alloys of poor quality could lead to failure.
Applications and Industry Uses
Hastelloy X can be used in the construction of heat exchangers for power plants and other energy production facilities. Its good corrosion resistance makes it well-suited for use in environments where heat exchangers are exposed to corrosive gases or liquids.
Hastelloy X can also be used in the construction of boiler components, such as tubes and headers, that are exposed to high temperatures and corrosive environments.
The high temperature strength of Hastelloy X makes it well-suited for use in the construction of turbine blades for gas turbine engines.
Hastelloy X can be used in the construction of fuel cells, which are devices that convert chemical energy into electricity. Its corrosion resistance makes it well-suited for use in fuel cells that are exposed to corrosive gases.
Hastelloy X can be used in the construction of jet engine components, such as blades and vanes, that are exposed to high temperatures and corrosive environments.
Specifications
SHEET & PLATE
Covers Hastelloy X per AMS 5536, defining requirements for sheet, coil, and plate forms used in high-temperature aerospace and industrial components.
BARS & FORGINGS
Specifies Hastelloy X per AMS 5754, governing bars, forgings, and rings for critical service in gas turbines and heat-resistant applications.
GE AVIATION
Outlines GE’s internal standards for nickel-base alloys used in combustion zones, turbine assemblies, and exhaust components.
SNECMA / SAFRAN
Defines Safran’s material specifications for nickel alloys used in aircraft engines and high-temperature structural parts.
ROLLS ROYCE
Establishes requirements for Hastelloy X alloys utilized in Rolls-Royce aerospace and power generation systems.
OTHER SPECS
Includes additional proprietary and industrial standards covering corrosion- and heat-resistant nickel alloys for specialized applications.
Certified Material for Critical Service
All Hastelloy X material supplied by Fighter Jet Metals is fully certified, traceable, and produced in strict compliance with aerospace and industrial quality standards. Each batch is accompanied by complete test reports, heat numbers, and certification to specifications such as AMS 5536 for sheet and plate or AMS 5754 for bars and forgings. We also support project-specific or OEM certifications including GE, Safran, and Rolls-Royce standards. When required, dual certification with related international specifications can be arranged. Every piece of Hastelloy X we supply is subjected to rigorous quality control to ensure consistent performance, reliability, and compliance for critical high-temperature and corrosion-resistant service.