ThePipingMart Blog Grades AMS 4037 Aluminum Alloy – Composition, Properties, and Uses

AMS 4037 Aluminum Alloy – Composition, Properties, and Uses

AMS 4037

AMS4037 is a popular aluminium alloy widely used in the aerospace industry for its exceptional strength and durability. It is a high-strength alloy that offers excellent resistance to stress and cracking, making it ideal for use in aircraft components, structural assemblies, and other high-performance applications. This blog post will explore everything you need about AMS4037, including its composition, physical and mechanical properties, uses, hardness, and heat treatment.

What is AMS 4037?

AMS 4037 (also known as Aluminum Alloy 2024) metal is a type of aluminium alloy known for its exceptional strength and resistance to corrosion. This specialized metal is commonly used in industries such as aerospace and defense, where its durability is essential for vital applications. With its impressive resistance to fatigue and cracking, AMS 4037 metal has become a go-to choice for manufacturers looking to produce high-performance components that can withstand extreme environments. Whether in aircraft or missile systems, this versatile metal is relied upon to safely and dependably transport people and equipment across great distances. Overall, AMS 4037 metal represents an important advance in material science, allowing for greater durability and reliability in various applications.

What Form is AMS 4037 Available at Piping Mart?

  • Pipes
  • Tubing

AMS 4037 Composition

AMS4037 is a wrought aluminium alloy composed mainly of aluminium, with significant amounts of copper, magnesium, manganese, and silicon. The specific amounts of each element can vary slightly from one manufacturer to another, but the standard composition is typically 6.2% copper, 0.8% magnesium, 0.6% manganese, and 0.4% silicon. The alloy also contains trace amounts of other elements, such as iron and titanium, which help improve its mechanical properties.

Element Content(%)
Aluminum, Al 93.50
Copper, Cu 4.4
Magnesium, Mg 1.5
Manganese, Mn 0.6

AMS 4037 Physical Properties

AMS 4037 has a density of 2.73 g/cm³ and a melting point of 582-652°C. It exhibits excellent corrosion resistance and can withstand high temperatures without degrading. The alloy has a thermal conductivity of 141-167 W/m-K and a coefficient of thermal expansion of 23.8-24.2 µm/m-K. It is also highly ductile and malleable, allowing it to be easily formed into various shapes and sizes.

Properties Metric Imperial
Density 2.77 g/cm3 0.10007 lbs/in3
Melting Point 510°C 950°F

AMS 4037 Mechanical Properties

AMS 4037 has exceptional mechanical properties, making it highly desirable for critical aerospace applications. It has a tensile strength of 590-620 MPa and a yield strength of 520-540 MPa. The alloy also exhibits excellent fatigue resistance and can withstand high-stress cycling without degrading. Additionally, it has a high toughness and impact resistance, making it highly suitable for dynamic applications.

Properties Metric Imperial
Hardness, Brinell 120 120
Hardness, Knoop 150 150
Hardness, Rockwell A 46.8 46.8
Hardness, Rockwell B 75 75
Hardness, Vickers 137 137
Tensile Strength, Ultimate 469 MPa 68000 psi
Tensile Strength, Yield 324 MPa 47000 psi
Elongation at Break 20% 20%
Modulus of Elasticity 73.1 GPa 10600 ksi
Poisson’s Ratio 0.33 0.33
Fatigue Strength 138 MPa 20000 psi
Shear Modulus 28 GPa 4060 ksi

AMS 4037 Uses

AMS 4037 tubing is used in numerous aerospace applications, including aircraft structural components, fuel tanks, hydraulic systems, landing gear components, and engine parts. It is also used to manufacture helicopters, missiles, and spacecraft. Its strength and toughness make it ideal for critical applications with paramount reliability and performance.

AMS 4037 Hardness

AMS 4037 has a Rockwell hardness of B75-80, making it a relatively hard alloy that can withstand high-stress environments. This makes it ideal for high-impact applications requiring a robust and durable material. Its high hardness also makes it resistant to deformation, allowing it to maintain its shape and integrity even under extreme conditions.

AMS 4037 Heat Treatment

AMS 4037 pipes can be heat-treated to improve its mechanical properties further. The preferred heat treatment method is solution annealing, which involves heating the alloy to 510-530°C for several hours, followed by quenching in water or other suitable quenching media. This process helps to homogenize the alloy and improve its strength and ductility. Alternatively, the alloy can be aged to further enhance its mechanical properties.


AMS 4037 material is a high-strength aluminium alloy widely used in the aerospace industry for its exceptional mechanical properties, corrosion resistance, and durability. This blog post explores its composition, physical and mechanical properties, uses, hardness and heat treatment to comprehensively understand this popular alloy. As such, it is a reliable and versatile material ideal for critical applications where reliability and performance are paramount.

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