Hastelloy X vs Inconel – What’s the Difference

Hastelloy X vs Inconel

When choosing the right type of metal for your industrial or engineering applications, it can be daunting to pick between the many available options. Two of the most popular high-performance alloys are Hastelloy X and Inconel. Both are known for their strength and reliability, but which is better? In this blog post, we will delve into the differences between Hastelloy X and Inconel, helping you decide when to choose the best metal for your project.

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Difference Between Hastelloy X and Inconel


Hastelloy X is a nickel-based alloy with significant amounts of chromium, molybdenum, and iron. It is highly resistant to high-temperature oxidation and corrosion. Conversely, Inconel is also a nickel-based alloy with a higher chromium concentration. It is an all-purpose metal with excellent resistance to oxidation, corrosion, and high-temperature environments.

Mechanical Properties

Hastelloy X and Inconel have exceptional mechanical properties, making them suitable for demanding applications. However, Inconel has a higher tensile strength than Hastelloy X, making it more durable and resistant to wear and tear. Additionally, Inconel can withstand more stress, making it an excellent choice for high-stress applications.

Temperature Resistance

The high-temperature capabilities of both Hastelloy X and Inconel are among their most significant selling points. Hastelloy X has a temperature limit of up to 1200°C, while Inconel can handle temperatures of up to 1300°C. However, Inconel has a higher melting point and can handle even higher temperatures than Hastelloy X.


Regarding cost, Hastelloy X is the more expensive of the two alloys. It is considered a higher-end material owing to its superior chemical and thermal properties. Inconel is less expensive but is still among the top choices for high-performance alloys.


Hastelloy X and Inconel have extensive applications in various industries, including aerospace, chemical processing, power generation, and marine applications. Hastelloy X is commonly used in gas turbines, jet engines, and petrochemical facilities. Conversely, Inconel is frequently used in industrial furnaces, aerospace engines, and chemical processing plants.


Choosing between Hastelloy X and Inconel ultimately depends on your project’s requirements. Both alloys are excellent options if you need a material that can withstand high-temperature and corrosive environments. However, if durability and strength are your primary concerns, Inconel may be the better choice. Finally, if cost is a significant factor, Hastelloy X might be your better choice. Whatever your final decision, you can rest assured that Hastelloy X and Inconel are excellent performers among high-performance alloys.



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