Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed vs Incoloy 925 (Ni-38Fe-22Cr-3Mo-2Cu-2Ti-0.3Al) aged
Property comparison of Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed and Incoloy 925 (Ni-38Fe-22Cr-3Mo-2Cu-2Ti-0.3Al) aged, both nickel alloy.
| Property | Incoloy 825 (Ni-38Fe-21Cr-3Mo-2Cu-1Ti) annealed | Incoloy 925 (Ni-38Fe-22Cr-3Mo-2Cu-2Ti-0.3Al) aged | Difference |
|---|---|---|---|
| Yield strength | 338 MPa | 810 MPa | +140% |
| Tensile strength | 662 MPa | 1,210 MPa | +83% |
| Elongation | 45 % | 24 % | -47% |
| Elastic modulus | 196,000 MPa | 199,000 MPa | +2% |
| Density | 8,140 kg/m³ | 8,080 kg/m³ | -1% |
| Brinell hardness | 200 HB | 38 HB | -81% |
| Thermal conductivity | 11.3 W/m·K | 12 W/m·K | +6% |
| Specific heat | 440 J/kg·K | 435 J/kg·K | -1% |
| Coefficient of thermal expansion | 0.000014 1/K | 0.000013 1/K | -6% |
| Melting point | 1,400 °C | 1,343 °C | -4% |
Difference is Incoloy 925 (Ni-38Fe-22Cr-3Mo-2Cu-2Ti-0.3Al) aged 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
- N09925
- standard
- Special Metals Corp. tech bulletin INCOLOY alloy 925 (SMC-066); Langley Alloys Alloy 925 datasheet; AZoM ArticleID 7694
- heat treatment
- solution annealed + aged
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