Inconel X-750
2.4669Age-hardenable Ni-Cr-Fe superalloy for high-temperature spring and fastener applications. Strengthened by gamma-prime precipitation (Al+Ti). Oxidation and corrosion resistant to ~700°C service. Used for gas turbine springs, rocket engine thrust chambers, nuclear reactor components, and high-temp fasteners.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | ASTM | USA | UNS N07750 | N07750 | REF |
| 🇪🇺 | EN | Europe | NiCr15Fe7TiAl | 2.4669 | 100% |
| 🇺🇸 | AMS | USA | AMS 5542/5598/5667/5668 | — | 100% |
Sources: ASTM B637, DIN 17742, AMS
Mechanical properties
Compatibility verdict
Inconel X-750 and NiCr15Fe7TiAl: 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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