Nimonic 75 (Ni-20Cr-0.4Ti) annealed vs Nimonic 90 (Ni-20Cr-18Co-2.5Ti-1.5Al) precipitation hardened
Property comparison of Nimonic 75 (Ni-20Cr-0.4Ti) annealed and Nimonic 90 (Ni-20Cr-18Co-2.5Ti-1.5Al) precipitation hardened, both nickel alloy.
| Property | Nimonic 75 (Ni-20Cr-0.4Ti) annealed | Nimonic 90 (Ni-20Cr-18Co-2.5Ti-1.5Al) precipitation hardened | Difference |
|---|---|---|---|
| Yield strength | 275 MPa | 695 MPa | +153% |
| Tensile strength | 750 MPa | 1,080 MPa | +44% |
| Elongation | 42 % | 20 % | -52% |
| Density | 8,370 kg/m³ | 8,180 kg/m³ | -2% |
| Thermal conductivity | 11.7 W/m·K | 11.5 W/m·K | -2% |
| Specific heat | 430 J/kg·K | 446 J/kg·K | +4% |
| Coefficient of thermal expansion | 0.000011 1/K | 0.000013 1/K | +16% |
| Melting point | 1,360 °C | 1,340 °C | -1% |
Difference is Nimonic 90 (Ni-20Cr-18Co-2.5Ti-1.5Al) precipitation hardened relative to Nimonic 75 (Ni-20Cr-0.4Ti) 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
- N06075
- standard
- Special Metals Corp. tech bulletin NIMONIC alloy 75 (SMC-090)
- heat treatment
- annealed 1052C/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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