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UNS N07090 Technical Specifications and Applications

Introduction to UNS N07090

UNS N07090 is a high-performance nickel-based superalloy known for its exceptional strength, corrosion resistance, and ability to withstand extreme temperatures. This alloy is widely used in aerospace, power generation, and chemical processing industries due to its unique combination of mechanical and chemical properties.

Chemical Composition

The chemical composition of UNS N07090 plays a crucial role in its performance. Below is a breakdown of its key elements:

• Nickel (Ni): 50-55% (primary base element)
• Chromium (Cr): 19-23% (enhances oxidation resistance)
• Cobalt (Co): 12-15% (improves high-temperature strength)
• Molybdenum (Mo): 4-6% (increases corrosion resistance)
• Titanium (Ti): 2.5-3.5% (strengthens the alloy through precipitation hardening)
• Aluminum (Al): 1.0-1.8% (contributes to oxidation resistance and hardening)

Mechanical Properties

UNS N07090 exhibits outstanding mechanical properties, making it suitable for demanding applications:

• Tensile Strength: 1200-1400 MPa
• Yield Strength: 800-1000 MPa
• Elongation: 10-15%
• Hardness: 30-35 HRC
• Operating Temperature Range: -200°C to 1000°C

Applications of UNS N07090

Due to its superior properties, UNS N07090 is utilized in various high-stress environments:

• Aerospace: Turbine blades, combustion chambers, and exhaust systems.
• Power Generation: Gas turbine components and nuclear reactor parts.
• Chemical Processing: Reactors, heat exchangers, and valves exposed to corrosive media.
• Oil & Gas: Downhole tools and components in sour gas environments.

Advantages of UNS N07090

This alloy offers several advantages over other high-performance materials:

• Excellent resistance to oxidation and sulfidation at high temperatures.
• Superior creep resistance under prolonged stress.
• Good weldability and fabricability for complex component designs.
• Long service life in harsh operating conditions.

Conclusion

UNS N07090 is a versatile and reliable superalloy that meets the stringent requirements of modern engineering applications. Its unique blend of strength, corrosion resistance, and thermal stability makes it indispensable in industries where failure is not an option. Whether in aerospace or chemical processing, UNS N07090 continues to prove its value as a high-performance material.