Product Description: Nickel Alloy Incoloy 909 / N19909
Nickel alloy Incoloy 909 (N19909) is a high-strength, low thermal expansion nickel-based superalloy designed for operation under high temperatures with minimal dimensional distortion. The material is widely used in aerospace and power generation industries due to its excellent dimensional stability, high strength, and good heat resistance.
General Technical Characteristics
Incoloy 909 alloy is characterized by a very low coefficient of thermal expansion, high strength at elevated temperatures, and excellent thermal stability. It maintains dimensional accuracy and mechanical properties during long-term exposure to heat.
Key properties:
- low thermal expansion
- high strength at elevated temperatures
- excellent dimensional stability
- good oxidation resistance
Chemical Composition
The alloy contains key elements:
- Nickel (Ni): base element
- Iron (Fe): significant portion
- Cobalt (Co): approx. 12–14%
- Niobium (Nb): approx. 4–5%
- Titanium (Ti): approx. 1–2%
- Aluminum (Al): approx. 0.1–0.3%
- Carbon (C): up to 0.05%
This composition provides low thermal expansion and high stability.
Mechanical Properties
The alloy demonstrates:
- high strength at temperatures up to 650–700°C
- minimal thermal deformation
- good fatigue resistance
- stable microstructure during long-term service
Applications
Nickel alloy Incoloy 909 is used for manufacturing:
- gas turbine engine components
- aerospace structural parts
- precision high-temperature assemblies
- power generation equipment components
It is widely applied in aerospace, energy, and instrumentation industries where dimensional stability is critical.
Features
Key advantages include:
- extremely low thermal expansion
- excellent dimensional stability
- good heat resistance
- long service life
Supply Formats and Standards
The material is supplied as:
- bars
- forgings
- billets
- custom-machined parts
Conforms to standard:
- UNS N19909
Nickel alloy Incoloy 909 (N19909) is an optimal solution for components operating under high temperature conditions where dimensional stability, reliability, and long-term durability are critical.
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