ThePipingMart Blog Grades AMS 5667 Inconel Alloy – Composition, Properties, and Uses

AMS 5667 Inconel Alloy – Composition, Properties, and Uses

AMS 5667 Inconel Alloy

In the world of engineering and metalworking, AMS 5667 is one of the most significant materials that are widely used. It is a potent and durable material with unique chemical properties that make it ideal for various applications. This blog post will learn more about AMS5667’s composition, physical and mechanical properties, uses, hardness, and heat treatment.

What is AMS 5667?

AMS 5667 ( also known as Inconel X-750) metal is a high-strength, corrosion-resistant alloy often used in aerospace and defence applications. This particular type of metal is known for its excellent mechanical properties, including high tensile strength, superior ductility, and excellent toughness. AMS 5667 is frequently used to construct critical components such as engine parts, landing gear, and turbine discs due to its ability to withstand extreme temperatures and harsh environments. Furthermore, the metal’s resistance to corrosion makes it a popular choice in marine settings, where it can hold up against saltwater exposure. Overall, AMS5667 metal is a reliable and versatile material with many practical industrial applications.

What Form Is AMS 5667 Available at Piping Mart?

  • Inconel X750 Bars
  • Inconel X750 Nuts
  • Inconel X750 Bolts
  • Inconel X750 Screw
  • Inconel X750 Washer
  • Inconel X750 Fasteners
  • Inconel X750 Stud Bolts
  • Inconel X750 Sheet Plates

AMS 5667 Composition

AMS 5667 is also known as Inconel 718, a superalloy made up primarily of nickel and chromium, along with a few other metals like iron, niobium, and molybdenum. The excellent chemical composition of this alloy makes it resistant to corrosion and high temperatures and maintains its strength at elevated temperatures.

Element Content (%)
Chromium, Cr 14-17
Iron, Fe 5-9
Titanium, Ti 2.25-2.75
Manganese, Mn 1 max
Niobium, Nb 0.7-1.2
Copper, Cu 0.5 max
Silicon, Si 0.5 max
Aluminum, Al 0.4-1
Carbon, C 0.08 max
Sulfur, S 0.01 min
Nickel, Ni Remainder

AMS 5667 Physical Properties

Regarding physical properties, AMS 5667 has a density of 8.19 g/cm3 and a melting point of 1300-1380°C. It also has excellent ductility and is readily weldable. This alloy is available in different forms like bars, sheets, pipes, and plates, making it versatile and easy to use.

Properties Metric Imperial
Density 8.26 g/cm³ 0.298 lb/in³
Melting point 1413°C 2575°F

AMS 5667 Mechanical Properties

AMS 5667 exhibits excellent mechanical properties that make it ideal for various applications. It has a high tensile strength of 150-160 ksi and a yield strength of 120-130 ksi. Also, it has a high resistance to fatigue, rupture, and stress cracking, making it an ideal material for high-performance applications.

Properties Metric Imperial
Tensile strength 1325 MPa 192.2 ksi
Elongation at break (in 51 mm) 23.60% 23.60%
Reduction of area 42% 42%

AMS 5667 Equivalent

AISI 688 AMS 5598 AMS 5670 AMS 5747 GE B50TF1232
AMS 5542 AMS 5667 AMS 5671 ASTM B637 GE B50YP44
AMS 5582 AMS 5668 AMS 5698 DIN 2.4669 MIL N-24114
AMS 5583 AMS 5669 AMS 5699 DIN 2.4699 MIL N-7786

AMS 5667 Uses

AMS 5667 Inconel 718 has many applications in several industries, including aerospace, gas turbine engines, and medical industries. Aerospace and gas turbine engines are used for components like engine disks, turbine blades, and even rocket nozzles. In the medical industry, it is used to manufacture prosthetic limbs due to its high biocompatibility.

AMS 5667 Hardness

AMS 5667 has excellent hardness properties, making it ideal for challenging environments. Its Brinell hardness is HRC 45-50 or HB 363-429, making it a perfect material for withstanding high-pressure environments.

AMS 5667 Heat Treatment

AMS 5667 can be heat-treated using the precipitation-hardening method. This process involves heating the alloy to a specific temperature, followed by water quenching to form a supersaturated solution. The solution is then aged to form fine precipitates that increase the strength and hardness of the material.


In summary, AMS 5667 material is a fantastic alloy for various engineering and metalworking applications. Its unique chemical properties make it resistant to corrosion at high temperatures while retaining its strength. This high-performance alloy has a range of applications in several different industries and has excellent properties such as ductility, high tensile strength, and excellent mechanical properties. AMS 5667 can be easily heat-treated to form a supersaturated solution that increases its hardness and strength, which makes it an ideal material for use in challenging environments.

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