UNS N07090 Alloy Properties and Applications

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UNS N07090 Alloy Properties and Applications

Introduction to UNS N07090 Alloy

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 demanding industrial applications where durability and reliability are critical.

Key Properties of UNS N07090

The UNS N07090 alloy exhibits several remarkable properties that make it suitable for challenging environments:

  • High Temperature Strength: Maintains structural integrity at elevated temperatures up to 980°C (1800°F)
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  • Excellent Corrosion Resistance: Resists oxidation and carburization in harsh chemical environments
  • Good Fabricability: Can be machined, welded, and formed using standard techniques
  • Creep Resistance: Performs well under prolonged stress at high temperatures
  • Thermal Stability: Retains mechanical properties after extended exposure to heat

Chemical Composition

The typical composition of UNS N07090 includes:

Element Percentage
Nickel (Ni) Balance
Chromium (Cr) 18-21%
Iron (Fe) ≤5%
Cobalt (Co) 15-21%
Molybdenum (Mo) 3-5%
Tungsten (W) 1-2%

Mechanical Properties

At room temperature, UNS N07090 typically exhibits:

  • Tensile Strength: 1200-1400 MPa
  • Yield Strength: 800-1000 MPa
  • Elongation: 15-25%
  • Hardness: 30-40 HRC

Applications of UNS N07090

The unique combination of properties makes UNS N07090 ideal for various demanding applications:

Aerospace Industry

Used in turbine blades, combustion chambers, and other high-temperature components of jet engines.

Power Generation

Employed in gas turbines, nuclear reactors, and other power plant components exposed to extreme conditions.

Chemical Processing

Utilized in reactors, heat exchangers, and piping systems handling corrosive substances at elevated temperatures.

Oil and Gas

Applied in downhole tools, valves, and other equipment for deep well drilling and production.

Fabrication and Heat Treatment

UNS N07090 can be processed using standard techniques: