Alloy 90 UNS N07090: Properties and Applications

July 13, 2025 / By

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Alloy 90 UNS N07090: Properties and Applications

Alloy 90, also known by its UNS designation N07090, is a nickel-chromium-cobalt alloy that offers a unique combination of high-temperature strength, corrosion resistance, and excellent mechanical properties. This alloy is widely used in industries where extreme conditions demand reliable performance.

Key Properties of Alloy 90 UNS N07090

Alloy 90 exhibits several notable properties that make it suitable for demanding applications:

• High-Temperature Strength: Maintains structural integrity at elevated temperatures up to 1800°F (982°C).
• Oxidation Resistance: Resists oxidation and scaling in high-temperature environments.
• Corrosion Resistance: Performs well in corrosive atmospheres, including sulfur-containing environments.
• Mechanical Stability: Retains excellent tensile and creep strength under stress.
• Fabrication Flexibility: Can be forged, machined, and welded with relative ease.

Common Applications of Alloy 90

Due to its exceptional properties, Alloy 90 is used in various high-performance applications, including:

• Aerospace: Turbine blades, combustion chambers, and exhaust systems.
• Power Generation: Gas turbine components and heat exchangers.
• Industrial Furnaces: Heating elements and furnace fixtures.
• Chemical Processing: Equipment exposed to high temperatures and corrosive media.

Conclusion

Alloy 90 UNS N07090 is a versatile material that excels in extreme environments, making it indispensable in industries requiring durability and resistance to heat and corrosion. Its balanced properties ensure long-term performance in critical applications.