Incoloy 800HT (Ni-32Fe-21Cr-0.6Ti-0.4Al higher-C higher-Ti/Al) annealed vs Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed
Property comparison of Incoloy 800HT (Ni-32Fe-21Cr-0.6Ti-0.4Al higher-C higher-Ti/Al) annealed and Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed, both nickel alloy.
| Property | Incoloy 800HT (Ni-32Fe-21Cr-0.6Ti-0.4Al higher-C higher-Ti/Al) annealed | Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed | Difference |
|---|---|---|---|
| Yield strength | 207 MPa | 338 MPa | +63% |
| Tensile strength | 517 MPa | 662 MPa | +28% |
| Elongation | 45 % | 45 % | 0% |
| Elastic modulus | 196,500 MPa | 196,000 MPa | 0% |
| Density | 7,940 kg/m³ | 8,140 kg/m³ | +3% |
| Thermal conductivity | 11.6 W/m·K | 11.3 W/m·K | -3% |
| Specific heat | 460 J/kg·K | 440 J/kg·K | -4% |
| Coefficient of thermal expansion | 0.000014 1/K | 0.000014 1/K | -1% |
| Melting point | 1,385 °C | 1,400 °C | +1% |
Difference is Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed relative to Incoloy 800HT (Ni-32Fe-21Cr-0.6Ti-0.4Al higher-C higher-Ti/Al) 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
- N08811
- standard
- Special Metals Corp. tech bulletin INCOLOY alloy 800H/800HT (SMC-047)
- heat treatment
- solution annealed (1150C min)
- 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
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