Understanding the Strength of Inconel X-750 Springs

Inconel X-750 springs are engineered to perform outstandingly in corrosive and high-temperature environments. The material’s unique properties make it a preferred choice for numerous industries, such as oil and gas, material handling, and aerospace.

What is Inconel X-750?

Inconel X-750 is a precipitation-hardenable Nickel-Chromium alloy known for its high strength at temperatures up to 1,300°F (704°C) and oxidation resistance up to 1,800°F (982°C). The alloy also demonstrates excellent resistance to relaxation.

Composition of Inconel X-750

The nominal composition of this alloy is as follows:

  • Nickel (Ni): 70.0 min
  • Chromium (Cr): 14.0 – 17.0

Other elements are included in smaller quantities to enhance specific properties.

Key Features of Inconel X-750

Here are the main features of Inconel X-750:

  • High strength at elevated temperatures
  • Excellent oxidation resistance
  • Superior resistance to relaxation
  • Cold drawn and precipitation hardened after fabrication

Technical Specifications of Inconel X-750

Here are some of the critical technical specifications of Inconel X-750:

  • Density: 0.299 lb./in3, (8.28 g/cm3)
  • Modulus of Elasticity (E): At 70°F (20°C): 31.0 x 106 psi
  • Modulus of Rigidity (G): At 70°F(20°C): 12.0×106 psi
  • Coefficient of Expansion: 7.8 µin/in.-°F (70°F to 1000°F)
  • Electrical Resistivity: 20.1 µΩ.in, (122 µΩ.cm)
  • Thermal Conductivity: 83 Btu-in/ft2hr-°F, (12.0 W/m-K)
  • Min Size: 0.004 in (0.100 mm)
  • Max Temp: 704oC (1300oF)

Manufacturing of Inconel X-750 Springs

M B Metal India specialize in manufacturing Inconel X-750 springs. We offer customized solutions to meet the specific requirements of different applications.

Types of Springs Manufactured

Inconel X-750 is primarily used in manufacturing three types of springs:

  • Compression Springs: These springs offer resistance to a compressive force applied axially.
  • Torsion Springs: These springs store mechanical energy when they are twisted. When the twisting force is removed, the stored energy is released, causing the spring to return to its original position.
  • Extension Springs: Unlike compression springs, these springs offer resistance to a pulling or stretching force.

Applications of Inconel X-750 Springs

Inconel X-750 springs are used in various applications that require high-temperature resistance. These include:

  • Nuclear reactors
  • Gas turbines
  • Rocket engines
  • Pressure vessels
  • Aircraft structures

Advantages of Using Inconel X-750 Springs

Inconel X-750 springs offer several advantages over springs made from other materials. These include:

  • High-Temperature Resistance: Inconel X-750 springs can withstand extremely high temperatures, making them ideal for use in applications such as gas turbines and nuclear reactors.
  • Excellent Corrosion Resistance: These springs offer excellent resistance to corrosion, making them suitable for use in challenging environments.
  • Superior Strength: Inconel X-750 is a high-strength material that can withstand high pressures and loads.


Inconel X-750 springs are designed to offer superior performance in high-temperature and corrosive environments. Their unique properties make them an ideal choice for a range of applications in various industries. Whether you’re in the oil and gas sector, aerospace industry, or any other

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