Incoloy 909
Description
Incoloy 909 (UNS N19909) is a nickel-iron-cobalt alloy engineered for dimensional stability, with a low coefficient of thermal expansion and a stable modulus of elasticity. Strengthened by the addition of niobium and titanium followed by precipitation hardening, this alloy performs well under high-temperature and high-pressure conditions. Incoloy 909 is widely used in critical aerospace and defense components such as gas turbine parts and ordnance hardware.
Application：
- Gas turbines
- Rocket-engine thrust chambers
- Ordnance hardware
- Springs
- Steam-turbine bolts
- Gauge blocks, instrumentation, and glass-sealing
Need a custom quote
or more information about this product? Contact our sales staff today!
Product Specification
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.30 g/cm³ | 0.300 lb/in³ |
| Melting point | 1422° C | 2590° F |
| Tensile strength (value at room temperature) | 1300 MPa | 189000 psi |
| Yield strength (value at room temperature) | 1140 MPa | 165000 psi |
| Elongation at break (precipitation hardened) | 15% | 15% |
| Thermal expansion co-efficient (@ 20-427° C/68-801° F) | 7.70 μm/m° C | 4.28 μin/in° F |
| Thermal conductivity | 14.8 W/mK | 103 BTU in/hr.ft².° F |
Chemical Composition
| Item | Ni | Fe | Co | Cr | Mo | Ti | Al | Nb | B | C | Mn | Si | P | S |
| Incoloy 909 | 42.0 – 46.0 | rest | 12.5 – 15.5 | 13.0 – 16.0 | 4.3 – 5.2 | 1.8 – 2.2 | 0.2 – 0.6 | 0.1 – 0.4 | 0.003-0.010 | ≤0.06 | ≤0.35 | ≤0.35 | ≤0.015 | ≤0.015 |
