Nimonic 90
2.4632Precipitation-hardened Ni-Cr-Co superalloy — Ti+Al for gamma-prime strengthening. Creep-resistant to 920°C (higher than Nimonic 80A at ~815°C). Co 15-21% for solid-solution strengthening. Used for gas turbine blades, turbine discs, exhaust re-heaters, high-temp springs, and motorsport engine valves. Also hot-working tools.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | UNS | USA | UNS N07090 | N07090 | REF |
| 🇪🇺 | EN | Europe | NiCr20Co18Ti / 2.4632 | 2.4632 | 100% |
Sources: AMS 5829, EN
Mechanical properties
Compatibility verdict
Nimonic 90 and NiCr20Co18Ti / 2.4632: 100% composition match
Related materials
Inconel 625
2.4856Nickel-chromium-molybdenum-niobium superalloy. Solid-solution strengthened (no precipitation hardening required). Outstanding corrosion resistance from cryogenic to 982°C. Used for jet engine exhaust systems, marine components, chemical processing, flare stacks, and nuclear applications.
Hastelloy C-276
2.4819The most versatile corrosion-resistant alloy available. Ni-Mo-Cr-W composition resists both oxidizing and reducing environments. Outstanding resistance to pitting, stress corrosion cracking, and wet chlorine gas. Used in chemical processing, flue gas desulfurization, pulp & paper, and waste treatment.
Monel 400
2.4360Nickel-copper alloy with excellent resistance to seawater, hydrofluoric acid, and alkaline environments. One of the few alloys resistant to HF acid at all concentrations. Used for marine engineering, chemical processing, oil refinery piping, and valve/pump components.
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