ThePipingMart Blog Grades AMS 5563 Stainless Steel – Composition, Properties, and Uses

AMS 5563 Stainless Steel – Composition, Properties, and Uses

AMS 5563

AMS 5563 is a high-strength, corrosion-resistant steel alloy commonly used in aerospace. It is known for its exceptional mechanical and physical properties, making it a popular material in various applications. This blog post will delve into the composition, physical and mechanical properties, and uses of AMS 5563. We will also take a closer look at its hardness and heat treatment options.

What is AMS 5563?

AMS 5563 (also known as 304L Stainless Steel) is a specification created by the Society of Automotive Engineers (SAE) that outlines the requirements for a seamless and welded tube made from corrosion-resistant steel. This type of steel is commonly used in high-pressure hydraulic and pneumatic systems and in applications where resistance to harsh chemicals and extreme temperatures is necessary. AMS5563 sets standards for these tubes’ chemical composition, manufacturing process, testing, and performance. Understanding the intricacies of this specification is crucial for manufacturers and engineers to ensure the safety and reliability of their products. By adhering to AMS 5563 material, they can be confident in their materials’ quality and ability to withstand challenging operating conditions.

AMS 5563 Composition

AMS 5563 is a precipitation-hardening steel alloy that combines chromium, nickel, and molybdenum as its primary alloying elements. It has high levels of strength, excellent corrosion resistance in various environments, and good flexibility. The chemical composition of AMS 5563 meets the standards set by the Society of Automotive Engineers (SAE) and the American Society for Testing and Materials (ASTM)  A579/A579M.

C Mn Si P S Cr Ni N
5563 0.03max 2.0max 0.75max 0.045max 0.03max min: 18.0 max: 20.0 min: 8.0 max: 12.0 0.10 max

AMS 5563 Physical Properties

One of the notable physical properties of AMS 5563 is its density, which is around 7.85 g/cm³. It is a non-magnetic alloy that exhibits significant resistance to wear, corrosion, and oxidation. It also maintains its remarkable mechanical properties at elevated temperatures. Its physical properties include a high thermal conductivity, a low coefficient of thermal expansion, and good electrical conductivity.

Property Value
Density 8000.00 Kg/m3
Melting Point 1450 °C
Thermal Expansion 17.2 x 10-6 /K
Modulus of Elasticity 193 GPa
Thermal Conductivity 16.2W/m.K
Electrical Resistivity 0.072 x 10-6 Ω .m

AMS 5563 Mechanical Properties

The mechanical properties of AMS 5563 are highly desirable, especially for engineering applications that require elevated strength and toughness. It has a tensile strength can reach up to 240 ksi, with a yield strength of around 170 ksi. Its modulus of elasticity is 29 x 10^6 psi, while its shear modulus is 11 x 10^6 psi. Moreover, its elongation and reduction in area can range from 10% to 20%.

Property Value
Proof Stress 200 Min MPa
Tensile Strength 500 – 700 MPa
Elongation 45 Min%

AMS 5563 Uses

Due to its remarkable physical and mechanical properties, AMS 5563 has various applications. It is typically used to produce aircraft components, such as fittings, fasteners, and retainers. It is also used to manufacture hydraulic and pneumatic components, springs, and other high-stress parts requiring superior strength and corrosion resistance.

AMS 5563 Hardness

The hardness of AMS 5563 is an essential factor to consider when choosing the appropriate heat treatment process. Depending on its specific application, the alloy can undergo different heat treatments to modify its hardness. Its typical hardness ranges from 33 to 38 and can reach 46 through proper heat treatment.

AMS 5563 Heat Treatment

Heat treatment is necessary to achieve the optimum combination of mechanical properties, including strength, toughness, and hardness for AMS 5563. This alloy’s most common heat treatment process is solution annealing, followed by ageing and precipitation hardening. These treatments can modify the physical and mechanical properties of the alloy, giving it the required hardness and enhancing its elasticity.


In summary, AMS 5563 is a steel alloy with excellent mechanical and physical properties, making it a valuable material in the aerospace and other engineering industries. Understanding its composition, physical and mechanical properties and suitable heat treatment processes can help engineers choose the appropriate material, thereby ensuring the safety and reliability of their products. Whether you’re designing aircraft components or other high-stress applications, AMS 5563 offers a reliable solution.

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