ThePipingMart Blog Grades AMS 5842F Nickel Alloy – Composition, Properties, and Uses

AMS 5842F Nickel Alloy – Composition, Properties, and Uses

AMS 5842F

AMS 5842F is a highly sought-after material in the aerospace industry, specifically for its durability and strength in high-temperature and high-stress environments. You’re in the right place if you’re unfamiliar with AMS 5842F or looking to learn more about this crucial material. In this blog post, we’ll cover everything you need to know about AMS 5842F, from its composition and physical properties to its mechanical properties, uses, and heat treatment.

What is AMS 5842F?

AMS 5842F (also known as Nickel Alloy 159) is an age-hardenable precipitation hardening steel made with high levels of Nickel and Chromium. It combines excellent mechanical properties and corrosion resistance, making it a perfect choice for manufacturing automobile parts, aircraft components, and other high-precision products.

AMS 5842F Composition

AMS 5842F is a type of precipitation-hardening nickel-cobalt-chromium alloy. It has high levels of nickel and cobalt, which provide heat resistance, while chromium enhances its corrosion resistance. AMS 5842F also contains small amounts of other elements such as iron, titanium, and aluminium.

Element Content (%)
Cobalt, Co 35.7
Nickel, Ni 25.5
Chromium, Cr 19
Iron, Fe 9
Molybdenum, Mo 7
Titanium, Ti 3
Niobium, Nb 0.6
Aluminum, Al 0.2

AMS 5842F Physical Properties

AMS 5842F boasts excellent physical properties that make it useful for applications that demand high strength, toughness, and heat resistance. It has a density of 0.304 lb/in³, a melting point of 2411°F, and a thermal conductivity of 7.5 Btu-in/ft²-hr-°F. It also has a low thermal expansion coefficient, making it ideal for use in extreme temperatures.

Properties Metric Imperial
Density 8.33 g/cm³ 0.301 lb/in³
Melting point 1427°C 2600°F

AMS 5842F Mechanical Properties

AMS 5842F is known for its high strength and hardness, making it ideal for demanding environments. It has a tensile strength of up to 210 ksi and a yield strength of up to 155 ksi. It also has excellent fatigue resistance and creep strength, which make it useful for applications that require prolonged exposure to high temperatures.

Properties Metric Imperial
Tensile strength (annealed 1052°C) 848 MPa 123000 psi
Yield strength (at strain 0.200%, annealed 1052°C) 400 MPa 58000 psi
Elastic modulus (at 232°C/450°F, annealed) 208 GPa 30200 ksi
Shear modulus (at 232°C/450°F, annealed) 75.8 GPa 11000 ksi
Elongation at break (cold worked 48%) 12% 12%
Reduction of area 46% 46%

AMS 5842F Equivalent

  • AMS 5841
  • AMS 5842
  • AMS 5843

AMS 5842F Uses

AMS 5842F is commonly used in the aerospace industry to produce parts for gas turbine engines. It is also used for land-based gas turbines, nuclear steam generators, and other high-stress applications. Additionally, it is used in medical applications such as surgical implants and in chemical and petrochemical processing equipment.

AMS 5842F Hardness

AMS 5842F has an impressive level of hardness. It can be heat-treated to achieve a maximum hardness of up to 50 Rockwell C. This hardness and high strength make it ideal for use in demanding environments where toughness and durability are crucial.

AMS 5842F Heat Treatment

AMS 5842F has excellent heat-treatment capabilities. It can be heat-treated to achieve optimum mechanical properties without sacrificing corrosion resistance. The most commonly used heat-treatment method for AMS 5842F is solution annealing followed by ageing. This method ensures that the material’s mechanical properties are optimized.


AMS 5842F material is a high-performance alloy that is valued for its excellent physical and mechanical properties, as well as its heat treatment capabilities. With its high strength, toughness, corrosion resistance, and hardness, it is particularly well-suited for use in the aerospace industry, among other applications. Understanding the composition, properties, and benefits of AMS 5842F can help you choose the suitable material for your specific needs and applications.

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