Nimonic 80A (Ni-20Cr-2.5Ti-1.4Al) precipitation hardened vs Nimonic 90 (Ni-20Cr-18Co-2.5Ti-1.5Al) precipitation hardened
Property comparison of Nimonic 80A (Ni-20Cr-2.5Ti-1.4Al) precipitation hardened and Nimonic 90 (Ni-20Cr-18Co-2.5Ti-1.5Al) precipitation hardened, both nickel alloy.
| Property | Nimonic 80A (Ni-20Cr-2.5Ti-1.4Al) precipitation hardened | Nimonic 90 (Ni-20Cr-18Co-2.5Ti-1.5Al) precipitation hardened | Difference |
|---|---|---|---|
| Yield strength | 780 MPa | 695 MPa | -11% |
| Tensile strength | 1,250 MPa | 1,080 MPa | -14% |
| Elongation | 30 % | 20 % | -33% |
| Density | 8,190 kg/m³ | 8,180 kg/m³ | 0% |
| Thermal conductivity | 11.2 W/m·K | 11.5 W/m·K | +3% |
| Specific heat | 448 J/kg·K | 446 J/kg·K | 0% |
| Coefficient of thermal expansion | 0.000013 1/K | 0.000013 1/K | +1% |
| Melting point | 1,342 °C | 1,340 °C | 0% |
Difference is Nimonic 90 (Ni-20Cr-18Co-2.5Ti-1.5Al) precipitation hardened relative to Nimonic 80A (Ni-20Cr-2.5Ti-1.4Al) precipitation hardened. 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
- N07080
- standard
- Special Metals Corp. tech bulletin NIMONIC alloy 80A (SMC-091)
- heat treatment
- solution treat 1080C/8h AC + age 700C/16h AC
- grade
- N07090
- standard
- Special Metals Corp. tech bulletin NIMONIC alloy 90 (SMC-092)
- heat treatment
- solution treat 1080C/8h AC + age 700C/16h AC
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