Inconel 751 (Ni-15Cr-2.5Ti-1.0Al-7Fe) aged vs Inconel MA754 ODS (Ni-20Cr-0.5Ti-0.3Al-0.6Y2O3) worked
Property comparison of Inconel 751 (Ni-15Cr-2.5Ti-1.0Al-7Fe) aged and Inconel MA754 ODS (Ni-20Cr-0.5Ti-0.3Al-0.6Y2O3) worked, both nickel alloy.
| Property | Inconel 751 (Ni-15Cr-2.5Ti-1.0Al-7Fe) aged | Inconel MA754 ODS (Ni-20Cr-0.5Ti-0.3Al-0.6Y2O3) worked | Difference |
|---|---|---|---|
| Yield strength | 875 MPa | 570 MPa | -35% |
| Tensile strength | 1,275 MPa | 950 MPa | -25% |
| Elongation | 25 % | 20 % | -20% |
| Density | 8,220 kg/m³ | 8,300 kg/m³ | +1% |
| Thermal conductivity | 12 W/m·K | 14.3 W/m·K | +19% |
| Coefficient of thermal expansion | 0.000013 1/K | 0.000012 1/K | -3% |
| Melting point | 1,413 °C | 1,400 °C | -1% |
Difference is Inconel MA754 ODS (Ni-20Cr-0.5Ti-0.3Al-0.6Y2O3) worked relative to Inconel 751 (Ni-15Cr-2.5Ti-1.0Al-7Fe) aged. 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
- N07751
- standard
- Special Metals Corp. tech bulletin INCONEL alloy 751; AZoM ArticleID 7764
- heat treatment
- precipitation hardened
- grade
- N07754
- standard
- Special Metals Corp. tech bulletin INCONEL alloy MA754; AZoM Super Alloy INCONEL MA754 (ArticleID 9481)
- heat treatment
- thermo-mechanically worked
About Inconel nickel-chromium superalloys
Inconel is a family of nickel-chromium-iron superalloys. They keep strength at temperatures where steels and most stainless grades have failed and resist oxidation and hot corrosion. Inconel 718 is the most widely used grade for aerospace turbine disks and high-temperature fasteners; Inconel 625 is the choice when chloride and reducing-acid corrosion both matter.
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