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Incoloy 925 Chemical Composition

The Chemical Composition of Incoloy 925

If you’re looking for a high-performance alloy that can stand up to extreme temperatures and harsh environments, then Incoloy 925 is a perfect choice. This nickel-iron-chromium alloy features superior corrosion resistance, strength, and weldability. Considering using Incoloy 925 in your next project, it’s important to understand its chemical composition. In this blog post, we’ll take a look at the different components that make up this powerful alloy.

The primary elements of Incoloy 925 are iron (Fe), nickel (Ni), chromium (Cr), molybdenum (Mo), and copper (Cu). These key elements combine to form a versatile alloy with exceptional strength and corrosion resistance, even in harsh conditions. Iron makes up the bulk of the composition of Incoloy 925, providing tensile strength as well as good ductility at normal temperature ranges. Nickel enhances corrosion resistance properties by forming protective oxide layers on the material’s surface. Chromium improves the corrosion and oxidation resistance of this alloy while increasing its tensile strength at elevated temperatures. Molybdenum provides additional strength at higher temperatures, while copper helps boost both its formability and weldability characteristics.

In addition to these primary elements, Incoloy 925 contains trace amounts of other metals such as manganese (Mn), silicon (Si), tungsten (W), and cobalt (Co). These minor components help improve certain properties, such as machinability and wear resistance while maintaining good formability characteristics.

The following table shows the chemical composition of Incoloy alloy 925™.

Elements Content (%)
Nickel, Ni 44
Iron, Fe 28
Chromium, Cr 21
Molybdenum, Mo 3
Titanium, Ti 2.1
Copper, Cu 1.8
Aluminum, Al 0.3
Carbon, C 0.01


Incoloy 925 is an incredibly versatile alloy with excellent mechanical properties even in hostile environments. Its combination of iron, nickel, chromium, molybdenum, and copper gives it superior strength, toughness, and corrosion resistance compared to other materials in its class. Knowing what goes into making this alloy is an important part of understanding how it performs under various conditions so you can make an informed decision when deciding which material to use for your project. With its unique combination of properties, Incoloy 925 is sure to meet your needs!

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