ThePipingMart Blog Grades AMS 5564 Stainless Steel – Composition, Properties, and Uses

AMS 5564 Stainless Steel – Composition, Properties, and Uses

AMS 5564

Metals have been the backbone of various industries for ages. The Aerospace, medical, and automotive industries are among those that rely heavily on metals. However, not all metals are created equal. AMS 5564 is a high-strength, low-alloy steel that has gained popularity because of its outstanding mechanical and physical properties. In this blog, we will dig deep into the composition of AMS 5564, its physical and mechanical properties, uses, hardness, and heat treatment.

What is AMS 5564?

AMS 5564 (also known as 304L Stainless Steel) is a material standard that specifies the requirements for high-quality stainless steel tubing used in aircraft hydraulic systems. This tubing is known for its durability, strength, and resistance to corrosion. Aerospace engineers rely on materials that meet high standards for quality, and the AMS 5564 sheet is no exception. It is tested and approved to ensure that it meets the stringent requirements for aircraft use. With its excellent performance and reliability, the AMS5564 is a trusted and important component in many aviation systems. Beyond aviation, this material is also used in other high-pressure applications where its strength and resistance to corrosion make it an ideal choice.

AMS 5564 Composition

AMS 5564 is classified as 304l Stainless Steel with a chemical composition that consists of Chromium (16-18%), Nickel (6.5-7.5%), Manganese (1%), Aluminum (0.75-1.5%), Carbon (0.09%), and Iron (Balance). This combination of elements gives it excellent corrosion resistance in various environments. Moreover, the alloy has a tensile strength of 1500 MPa and a yield strength of 1300 MPa. These characteristics make AMS5564 one of the strongest steel alloys.

C Mn Si P S Cr Ni N
5564 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 5564 Physical properties

Regarding physical properties, AMS 5564 has a density of 0.278 lb/inch^3, a melting point of 2570°F, and a thermal conductivity of 152 Btu-in/hr-ft^2°F. These properties make it suitable for high-temperature applications such as jet engines, turbines, and power generation plants. Furthermore, it is non-magnetic, making it an ideal material for medical equipment such as MRI machines.

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 5564 Mechanical properties

Regarding mechanical properties, AMS 5564 material is malleable, tough, and capable of absorbing high-impact loadings without deformation. Its fatigue endurance limit is 40 ksi, the maximum stress level it can withstand before developing fatigue cracks. These mechanical properties make it suitable for demanding applications such as industrial controls, torsion springs, and critical aerospace components.

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

AMS 5564 Uses

AMS 5564 bar is used in various aerospace, automotive, medical, and manufacturing industries. In the aerospace industry, it is used for aircraft components that need high-strength and corrosion-resistant properties. The medical industry, AMS 5564 is used for surgical instruments, implantable devices, and medical equipment. In the automotive industry, it is used for suspension systems, engine components, and exhaust systems.

AMS 5564 Hardness & heat treatment

Hardness is an essential aspect that determines the suitability of AMS 5564 for a specific application. The Rockwell hardness of AMS 5564 can range from C35 to C45, depending on the heat treatment. For instance, the steel is age-hardened at 900°F for 1 hour to achieve maximum strength and then air-cooled. This heat treatment process will increase its hardness to C44.


AMS 5564 is a high-strength, low-alloy steel with unique mechanical and physical properties that make it suitable for demanding applications. Its excellent corrosion resistance, high tensile strength, and flexibility make it ideal for the aerospace, medical, and automotive industries. In addition, its non-magnetic property makes it suitable for use in medical equipment. Furthermore, heat treatment can optimise its hardness, making it perfect for various applications. With its unique characteristics, it is no wonder that AMS 5564 has become one of the most popular steel alloys in the market today.

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