ThePipingMart Blog Grades AMS 4069 Aluminum Alloy – Composition, Properties and Uses

AMS 4069 Aluminum Alloy – Composition, Properties and Uses

AMS 4069

AMS4069 is a popular alloy widely used in various industries due to its excellent mechanical and physical properties. The alloy’s high-strength and corrosion-resistant properties make it a perfect choice for aerospace, marine, and defence industries. This blog post will provide a quick guide to AMS 4069, including its composition, physical and mechanical properties, uses, hardness, and heat treatment.

What is AMS 4069?

AMS 4069 (also known as 5052 Aluminum Alloy) is a specification that defines the requirements for a specific type of nylon material used for manufacturing aircraft components. This material, with its enhanced strength and durability properties, is highly sought after in the aviation industry due to its ability to withstand the rigours of flight. But what makes AMS4069 stand out from other types of nylon materials? Its specific composition includes additives that enhance its abrasion resistance, impact resistance, and ability to withstand extreme temperatures. The result is a highly versatile material capable of performing in even the most challenging conditions. As aviation technology evolves, so will the materials used to make its components. But for now, AMS4069 remains one of the most trusted and reliable materials for aircraft manufacturing.

What Form is AMS 4069 Available at Piping Mart?

  • Pipes
  • Tubing

AMS 4069 Composition

AMS4069 comprises copper, silicon, magnesium, and zinc, with traces of iron and titanium. The alloy’s unique composition makes it strong and resistant to corrosion, making it a popular choice for various industrial applications.

Element 5052
Silicon 0.25
Iron 0.40
Copper 0.10
Manganese 0.10
Magnesium 2.2-2.8
Chromium 0.15-0.35
Zinc 0.10
Aluminum balance
Other Elements (each) 0.05
Other Elements (total) 0.15

AMS 4069 Physical Properties

AMS 4069 has impressive physical properties, such as a density of 2.7 g/cm3, a melting point of 585°C, and a thermal conductivity of 104 W/mK. The alloy also has excellent electrical conductivity, making it ideal for electrical and electronic applications.

AMS 4069 Mechanical Properties

AMS 4069 has outstanding mechanical properties, including high strength, fatigue resistance, and toughness. The alloy can withstand high temperatures and harsh environments, making it ideal for aerospace and defence industries.

Properties Metric Imperial
Elastic modulus 70-80 Gpa 10152-11603 ksi
Poisson’s ratio 0.33 0.33

AMS 4069 Equivalents

AMS 4004 AMS 4017 AMS 4175 AMS 4178 AMS 4348 ASTM B209
ASTM B316 ASTM B404 ASTM B483 ASTM B547 ASTM B548 MIL C-26094
MIL G-18014 MIL S-12875 QQ A-225/7 QQ A-250/8 QQ A-430 QQ WW-T-700/4

AMS 4069 Uses

AMS 4069 is a popular alloy and is used in various industrial applications. The alloy is used in aircraft engines, landing gear, and other aircraft structures. It is also used in marine applications such as propellers, shafts, and seawater corrosion-resistant structures. The alloy is also widely used in the defence industry in missile components and other critical military applications.

AMS 4069 Hardness

The hardness of AMS 4069 varies depending on the heat treatment process. Typically, the alloy has a hardness of around 90 Rockwell B after being cold-worked. Heat treatment can further harden the alloy, making it more suitable for high-stress applications.

AMS 4069 Heat Treatment

Heat treatment is used to improve the mechanical properties of AMS 4069, primarily the hardness and strength. The heat treatment process includes annealing, quenching, and ageing. Annealing reduces the hardness of the alloy, making it more pliable, while quenching and ageing increase the hardness and strength.


AMS 4069 material is a popular alloy due to its impressive mechanical and physical properties. Its high strength, fatigue resistance, and corrosion-resistant properties make it ideal for various industrial applications, notably in the aerospace, marine, and defence industries. With proper heat treatment, AMS 4069 can be hardened further, making it more suitable for high-stress applications. Our quick guide to AMS 4069 has been informative and helpful.

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