Hastelloy X

Specs: AMS 5754, MIL-I-45208A
UNS# N06002

Hastelloy X metal is a Nickel-based alloy containing 47.5% Nickel, 22% Chromium, and 18.5% Iron, with small amounts of Cobalt, Molybdenum and Tungsten.


This Hastelloy alloy is corrosion and heat-resistant alloy is typically used for such parts as turbine rotors, shafts, flanges, blades, and bolts, requiring oxidation resistance up to 2200°F and relatively high strength about 1500°F. If you need a strong metal for these applications, use Hastelloy X.


One of the main functions of Hastelloy X is to endure effectively under high-temperature, high-stress applications in a moderately to severely corrosive, and/or erosion-prone environment where more common and less expensive iron-based alloys would fail. Although it is a superalloy, Hastelloy X does experience degradation due to fabricating and handling. Electropolishing or passivation of Hastelloy X can improve corrosion resistance.

Available shapes –  round 


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Applications and Industries

Hastelloy X’s exceptional properties have made it a favored material in various high-end engineering applications. This alloy is primarily used in the aerospace sector, where its resistance to high-temperature corrosion makes it ideal for components of jet engines, including combustion chambers and afterburners. Its ability to withstand high temperatures without losing its strength also makes it suitable for industrial furnaces and chemical processing equipment where reliability under thermal stress is paramount.


In addition to aerospace, the petrochemical industry benefits significantly from Hastelloy metal’s robustness. It can help construct reactors and pipes exposed to corrosive gases at high temperatures. The energy industry, particularly in solar and nuclear power generation applications, also relies on this alloy for its high-temperature stability and corrosion resistance.


Maintenance and Care

Despite its durability, maintaining Hastelloy X to ensure its longevity is critical. Regular inspections are the recommendation to detect any early signs of wear or corrosion. You should clean it when necessary to avoid scratching or damaging the surface, which may compromise its corrosion resistance.


Specific cleaning agents designed for nickel-based alloys can help maintain Hastelloy X’s integrity over time. Whether in the aerospace, petrochemical, or energy industry, proper maintenance and care of Hastelloy X is essential for its continued performance in high-stress environments.


Future Outlook

The continuing development in materials science promises enhancements in Hastelloy alloys’ capabilities. Research is underway to improve Hastelloy X’s resistance to even more extreme conditions and to refine its manufacturing processes to reduce costs. These advancements will likely expand its applications to new industries, further solidifying its position as a crucial material in challenging environmental conditions.


The last several decades have seen a steady increase in the use of Hastelloy X, and with ongoing research and development, its popularity should continue to rise. With its exceptional properties and versatility, Hastelloy X will undoubtedly play a vital role in shaping the future of engineering materials. The demand for high-performance alloys like Hastelloy X will only grow as industries push for technological advancements and seek materials that can withstand increasingly extreme conditions.


Hastelloy metal represents the pinnacle of nickel-based superalloys, offering unmatched performance in high-temperature, corrosive environments. Its contribution to the aerospace, petrochemical, and energy sectors underscores its importance in modern industrial applications. Wieland Diversified’s Hastelloy X alloy conforms to AMS 5754 and MIL-I-45208A specifications, ensuring the highest quality and performance for your critical applications. Trust in Wieland Diversified for all your Hastelloy X needs.

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