ThePipingMart Blog Grades AMS 5795 Haynes Alloy – Composition, Properties, and Uses

AMS 5795 Haynes Alloy – Composition, Properties, and Uses

AMS 5795

AMS 5795 is a high-strength and high-temperature material with excellent corrosion resistance. This material is known for its superior properties and is widely used in various industries. In this blog post, we will review the composition, physical and mechanical properties, uses, and hardness of AMS 5795. We will also look at this material’s heat treatment process and how it affects its properties.

What is AMS 5795?

AMS 5795 is a high-performance nickel alloy used in aerospace and gas turbine industries. With excellent resistance to corrosion and oxidation at high temperatures, it has become a popular choice for engine components that require extreme durability and reliability. Its unique mechanical properties enable it to withstand rigorous environmental conditions, making it a standout material. As an expert in materials science, I can confidently attest to the impressive capabilities of AMS 5795 and critical role in advancing modern engineering practices.

AMS 5795 Composition

AMS 5795 is a nickel-based superalloy that contains significant amounts of cobalt, molybdenum, and chromium. The exact composition varies depending on the manufacturer, but typically, AMS 5795 contains around 60% nickel, 20% cobalt, 11% chromium, and 4% molybdenum. In addition, it may contain small amounts of other elements such as titanium, aluminium, and tungsten.

Elements Content (%)
Iron, Fe 31
Chromium, Cr 22
Nickel, Ni 20
Cobalt, Co 18
Molybdenum, Mo 3
Tungsten, W 2.5
Manganese, Mn 1
Tantalum, Ta 0.6
Silicon, Si 0.4
Nitrogen, N 0.2
Aluminum, Al 0.2
Carbon, C 0.1
Lanthanum, La 0.02
Zirconium, Zr 0.02

AMS 5795 Physical Properties

AMS 5795 has excellent physical properties that make it ideal for high-temperature applications. Its melting point is around 1350°C, and its density is 8.19 g/cm³. This material has a coefficient of thermal expansion of 13.8 µm/m°C, which means it expands significantly when exposed to high temperatures. In addition, it has excellent resistance to oxidation and corrosion, even at high temperatures.

Properties Metric Imperial
Density 8.23 g/cm³ 0.297 lb/in³
Melting point 1371ºC 2500ºF

AMS 5795 Mechanical Properties

The mechanical properties of AMS 5795 make it ideal for use in high-stress applications. It has a tensile strength of around 1300 MPa and a yield strength of around 1000 MPa. It also has good creep resistance and can maintain strength even at high temperatures for extended periods. The fatigue strength of AMS 5795 is also excellent, making it ideal for use in applications that involve cyclic loading.

Properties Metric Imperial
Tensile strength 815 MPa 118000 psi
Yield strength 410 MPa 59500 psi
Charpy impact 240 J 177 ft. lb
Elongation at break 47.70% 47.70%
Elastic modulus 205 GPa 29700 ksi

AMS 5795 Equivalent

  • AMS 5831
  • AMS 5874
  • AMS 5877
  • ASTM B366
  • ASTM B435
  • ASTM B572
  • ASTM B619
  • ASTM B622
  • ASTM B626

AMS 5795 Uses

AMS 5795 is widely used in various industries, such as aerospace, power generation, and chemical processing. This material is commonly used to manufacture turbine blades, combustion chambers, and exhaust systems for aircraft engines. It is also used in gas, steam, and boilers for power generation. In the chemical processing industry, AMS 5795 is used in applications that involve high temperature and corrosive environments.

AMS 5795 Hardness

The hardness of AMS 5795 varies depending on the heat treatment used. In the annealed condition, it has a hardness of around 200 HB. However, it can significantly increase to about 400 HB after the heat treatment. This increase in hardness improves the material’s wear resistance and makes it ideal for use in applications that involve sliding or abrasive wear.

AMS 5795 Heat Treatment

The heat treatment process used on AMS 5795 affects its properties significantly. This material’s most common heat treatment involves solution heat treatment followed by ageing. This heat treatment improves the material’s strength, hardness, and creep resistance. Another heat treatment process used on AMS 5795 is stress relief annealing, which removes stress from the material after welding or forming.


AMS 5795 is a superior material with excellent physical and mechanical properties. Its high strength, creep, and corrosion resistance are ideal for high-temperature and corrosive environments. Its uses are wide-ranging, commonly seen in the aerospace, power generation, and chemical processing industries. The heat treatment process used on AMS 5795 is crucial in improving its properties and should be done only by experts. In conclusion, AMS 5795 is a material worth considering for applications that require excellent strength, toughness, and corrosion resistance at high temperatures.

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