ThePipingMart Blog Grades AMS 5541 Inconel Alloy – Properties, Composition, and Uses

AMS 5541 Inconel Alloy – Properties, Composition, and Uses

AMS 5541

Are you searching for a durable and versatile metal alloy? Look no further than AMS 5541! This high-strength, corrosion-resistant alloy has various properties that make it ideal for multiple applications. In this article, we’ll take a closer look at the composition, physical and mechanical properties of AMS 5541, along with its many uses.

What is AMS 5541?

The acronym AMS 5541 (also known as Inconel 722 Alloy)might sound foreign if you’re not in the metallurgical industry. But in the aerospace and defence sectors, it’s a critical specification that involves the production of high-grade stainless steel alloys, specifically Inconel 722. AMS5541 sets the alloy’s chemical composition, mechanical properties, and heat treatment standards. The demand for AMS 5541-grade steel alloys continues to grow as modern air and space travel requires materials that can withstand high temperatures and xtreme environments.

What Form Is AMS 5541 Available at Piping Mart?

  • Bars
  • Sheet Plates

AMS 5541 Composition

AMS 5541, or Inconel 561, is a nickel-chromium-cobalt-molybdenum alloy highly resistant to oxidation and corrosion. It also contains small amounts of aluminium and titanium, contributing to its high strength and durability. The alloy is typically formed using vacuum induction melting (VIM), ensuring consistent quality and purity.

Element Content (%)
Carbon, C 0.08 max
Silicon, Si 0.07 max
Sulfur, S 0.01 max
Chromium, Cr 14 – 17
Iron, Fe 5 – 9
Titanium, Ti 2 – 2.75
Manganese, Mn 1 max
Copper, Cu 0.5 max
Aluminum, Al 0.4 – 1
Nickel, Ni Remainder

AMS 5541 Physical Properties

AMS 5541 has a density of 8.22 g/cm3 and a melting point of 1330-1380°C. It is non-magnetic and has a low thermal expansion coefficient, making it suitable for high-temperature environments. The alloy also has excellent resistance to corrosion and oxidation in both acidic and alkaline environments, making it ideal for use in harsh chemical and industrial applications.

Properties Metric Imperial
Density 8.23 g/cm³ 0.297 lb/in³
Melting point 1399ºC 2550ºF

AMS 5541 Mechanical Properties

AMS 5541 has excellent mechanical properties, including high tensile and yield strength, good ductility and toughness, and excellent fatigue resistance. These properties make it suitable for various applications, including the aerospace, automotive, and chemical processing industries.

Tensile strength 568~314 σb/MPa
Yield Strength 978 σ 0.2 ≥/MPa
Elongation 88 δ5≥(%)
ψ ψ≥(%)
Akv Akv≥/J
HBS 930~968
HRC 30

AMS 5541 Equivalent

  • AMS 5541
  • AMS 5714
  • GE B50T1233

AMS 5541 Uses

One of the most common uses of AMS 5541 is in aircraft engine components, such as compressor blades and turbine discs, due to its high strength, durability, and resistance to corrosion and oxidation in high-temperature environments. The alloy is also used in heat exchangers, chemical processing equipment, and gas turbines. Its high resistance to corrosion and oxidation makes it ideal for harsh chemical and industrial applications.

AMS 5541 Hardness

AMS 5541 has a Rockwell hardness of approximately 40-45 HRC. This hardness level suits various applications, including cutting tools and dies. The hardness level of AMS 5541 can be further increased through heat treatment, which we’ll explore in the next section.

AMS 5541 Heat Treatment

AMS 5541 can be heat treated to improve its mechanical properties, including increasing its hardness and strength. The most common heat treatment for AMS 5541 is solution annealing, which involves heating the alloy to a high temperature and cooling it rapidly. This process improves the alloy’s ductility, toughness, and resistance to fatigue.


AMS 5541 is a versatile, durable nickel-chromium-cobalt-molybdenum alloy with excellent mechanical and physical properties. Its high strength, corrosion, and oxidation resistance make it ideal for various applications, including aircraft engine components, heat exchangers, and chemical processing equipment. The alloy’s hardness can be further increased through heat treatment, which improves its mechanical properties and extends its lifespan. If you’re looking for a reliable and versatile metal alloy, AMS 5541 is an excellent choice.

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