Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed vs Incoloy 909 (Ni-38Co-13Fe-4.7Nb-1.5Ti) precipitation hardened
Property comparison of Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed and Incoloy 909 (Ni-38Co-13Fe-4.7Nb-1.5Ti) precipitation hardened, both nickel alloy.
| Property | Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed | Incoloy 909 (Ni-38Co-13Fe-4.7Nb-1.5Ti) precipitation hardened | Difference |
|---|---|---|---|
| Yield strength | 338 MPa | 1,140 MPa | +237% |
| Tensile strength | 662 MPa | 1,300 MPa | +96% |
| Elongation | 45 % | 15 % | -67% |
| Elastic modulus | 196,000 MPa | 159,000 MPa | -19% |
| Density | 8,140 kg/m³ | 8,300 kg/m³ | +2% |
| Thermal conductivity | 11.3 W/m·K | 14.8 W/m·K | +31% |
| Coefficient of thermal expansion | 0.000014 1/K | 0.000008 1/K | -45% |
| Melting point | 1,400 °C | 1,422 °C | +2% |
Difference is Incoloy 909 (Ni-38Co-13Fe-4.7Nb-1.5Ti) precipitation hardened relative to Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- N08825
- standard
- Special Metals Corp. tech bulletin INCOLOY alloy 825 (SMC-054); Sandmeyer Steel Incoloy 825 spec sheet; Langley Alloys Alloy 825 datasheet
- heat treatment
- mill annealed
- grade
- N19909
- standard
- Special Metals Corp. tech bulletin INCOLOY alloy 909 (SMC-059); AZoM ArticleID 7744
- heat treatment
- precipitation hardened
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