Inconel X-750: Complete Properties & Application Guide

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Overview

Inconel X-750 (UNS N07750 / W.Nr. 2.4663) is a precipitation-hardenable nickel-chromium alloy with excellent corrosion and oxidation resistance up to 1300°F (704°C). The alloy gains its strength through gamma prime precipitation from additions of aluminum, titanium, and niobium.

Chemical Composition

The chemical composition of Inconel X-750 is carefully controlled to achieve its unique combination of properties and performance characteristics.

Element	Min %	Max %
Nickel (Ni)	70.0	Balance
Chromium (Cr)	14.0	17.0
Iron (Fe)	5.0	9.0
Titanium (Ti)	2.25	2.75
Aluminum (Al)	0.40	1.00
Niobium+Tantalum (Nb+Ta)	0.70	1.20
Carbon (C)	—	0.08
Manganese (Mn)	—	1.0

Mechanical Properties at Room Temperature

The mechanical properties of Inconel X-750 vary depending on product form and heat treatment condition. The data below represents typical values for solution-annealed material.

Property	Value
Tensile Strength	1170 MPa
Yield Strength (0.2% offset)	760 MPa
Elongation in 2 inches	20%
Density	8.28 g/cm3
Melting Point	1395 °C
Max Service Temperature	815 °C

Corrosion Resistance

Excellent resistance to oxidation and corrosion at elevated temperatures. The alloy exhibits good resistance to chloride stress corrosion cracking and maintains strength in hostile environments. Resistance to hydrogen embrittlement makes it suitable for nuclear applications.

Applications

The unique combination of properties makes Inconel X-750 suitable for a wide range of demanding applications:

• Gas Turbines: Rotor blades, wheels, and structural components in gas turbine engines.
• Aerospace: Jet engine parts, rocket engine thrust chambers, and airframe fasteners.
• Nuclear Industry: Reactor core components and spring fasteners in nuclear power plants.
• Springs and Fasteners: High-temperature springs, bolts, and rivets requiring long-term reliability.
• Forming Tools: Dies and tools for hot-working of metals at elevated temperatures.

Available Product Forms

Hangbo Alloy Group manufactures and supplies Inconel X-750 in the following product forms, conforming to ASTM, AMS, and ASME specifications:

• Round Bars: Diameters from 6 mm to 300 mm, hot-finished or cold-drawn, solution annealed.
• Seamless Tubes & Pipes: Sizes from 6 mm OD to 219 mm OD, various wall thicknesses.
• Plates & Sheets: Thicknesses from 0.5 mm to 50 mm, hot-rolled or cold-rolled.
• Forgings: Custom flanges, rings, discs, and complex shapes per customer drawing.
• Welding Wire: Diameters 0.8 mm to 5.0 mm, precision-wound coils and spools.

Related Standards

Standard	Description
ASTM B637	Forgings
AMS 5667	Bar and Forging
AMS 5542	Sheet and Strip
AMS 5670	Wire
ASTM B670	Plate
SAE AMS 5668	Bar and Forging

Contact Us for Inconel X-750

Hangbo Alloy Group maintains extensive inventory of Inconel X-750 in all standard product forms. We can provide mill test certificates, third-party inspection reports (SGS, TUV), and custom processing services.

For quotations, material certifications, or technical consultation, contact our sales team or call +86-136-1165-6360. We typically respond within 10 minutes.