Inconel X-750 is a nickel-chromium alloy similar to INCONEL alloy 600 but made precipitation hardenable by additions of aluminum and titanium. Inconel X-750 has good resistance to corrosion and oxidation along with high tensile and creep-rupture properties at temperatures to about 1300°F (700°C). Its excellent relaxation resistance is useful for high-temperature springs and bolts. Inconel X-750 is used in gas turbines, rocket engines, nuclear reactors, pressure vessels, tooling and aircraft structures. Standard product forms are round, flats, extruded section, forging stock, plate, sheet, strip, pipe, tube and wire.
Unit of Measure



N/A Inconel®


N/A Sheets


N/A 0.043 inches1.0922 mm

Nickel Alloy Compositions


N/A Inconel® X-750

Basic Composition

N/A 1.5% Titanium 21.0% Chrominum 3.5% Nb 57.0% Nickel 7.5% Iron 8.0% Molybdenum


N/A 0.299 lbs/in³8.28 g/cm³

ASTM Specification

N/A SAE 5542 SAE 5598 SAE MAM 5598 UNS N07750

Typical Mechanical Properties

Melting Temperature Range

N/A 2540 to 2600 ºF1390 to 1430 ºC

Rupture Strength (1000 h at 1100°F/595°C)

N/A 92000 psi630 MPa

Rupture Strength (1000 h at 1200°F/650°C)

N/A 68000 psi470 MPa

Rupture Strength (1000 h at 1350°F/730°C)

N/A 37000 psi260 MPa

Rupture Strength (1000 h at 1500°F/815°C)

N/A 16000 psi110 MPa