ThePipingMart Blog Grades AMS 4252 Aluminum Alloy – Composition, Properties and Uses

AMS 4252 Aluminum Alloy – Composition, Properties and Uses

AMS 4252

What is AMS 4252 and its properties? You’re in the right place. This blog post explores AMS 4252, its composition, physical and mechanical properties, hardness, and heat treatment uses. Read on to discover everything you need to know about this material.

AMS 4252 is a type of aluminium alloy designed for high-strength applications. It is a heat-treatable alloy that offers excellent resistance to corrosion, good weldability, and high mechanical strength. The material is created through a complex manufacturing process that carefully selects raw materials and controls the processing parameters.

What is AMS 4252?

AMS 4252 (also known as 7150 Aluminum Alloy) is a specification for aerospace-grade titanium alloy, commonly referred to as Ti-6Al-2Sn-4Zr-2Mo. This alloy has some impressive properties that make it ideal for aerospace applications. Specifically, Ti-6Al-2Sn-4Zr-2Mo has excellent strength, excellent corrosion and fatigue resistance, and is exceptionally lightweight. This makes it perfect for aircraft and spacecraft components that require high performance and durability without adding unnecessary weight. So if you’re curious about the latest advancements in aerospace technology, AMS 4252 is worth taking a closer look at!

AMS 4252 Composition

This aluminium alloy comprises aluminium, copper, magnesium, and zinc. The composition varies depending on the specific requirements of the application. Typically, aluminium content accounts for about 89.3% to 91.1%, while copper accounts for 5.6% to 6.6%, magnesium accounts for 2.1% to 2.9%, and zinc accounts for 0.9% to 1.8%. Other minor components such as iron, manganese, silicon, chromium, and titanium may also be present in small amounts.

Element Content (%)
Aluminum, Al 85.9 – 89.5
Zinc, Zn 7.2 – 8.2
Magnesium, Mg 2 – 2.9
Copper, Cu 1.2 – 1.9
Silicon, Si ≤ 0.15
Titanium, Ti ≤ 0.10
Iron, Fe ≤ 0.20
Chromium, Cr 0.10 – 0.22
Manganese, Mn ≤ 0.20
Other (each) ≤ 0.050
Other (total) ≤ 0.15

AMS 4252 Physical Properties

AMS 4252 has excellent physical properties, making it a popular choice in many applications. These properties include a density of 2.78 g/cm3, a melting point of 582-651°C, a thermal conductivity of 124-149 W/m*K, and a coefficient of thermal expansion of 22.8-24.7 µm/m°C. The material also exhibits good electrical conductivity and can withstand various environmental conditions, including high and low temperatures.

AMS 4252 Mechanical Properties

With high strength and excellent corrosion resistance, AMS 4252 is ideal for durable and reliable applications. Its mechanical properties include a yield strength of 435 MPa, a tensile strength of 524 MPa, an elongation of 6%, and a modulus of elasticity of 70.3 GPa. The material can be formed into different shapes and sizes, including sheets, bars, and forgings.

AMS 4252 Uses

AMS 4252 is primarily used in aerospace and defence applications, including aircraft structural components, missile and rocket components, and other high-performance parts. Its high strength and excellent corrosion resistance makes it an ideal material for such applications. The material is also widely used in the automotive, marine, and construction industries.

AMS 4252 Hardness

The hardness of AMS 4252 depends on the heat treatment process used. The material can be heat-treated to achieve different hardness levels, ranging from 85 to 105 on the Brinell hardness scale. Hardening is achieved by applying controlled heat to the material, followed by cooling in water or other quenching media.

AMS 4252 Heat treatment

AMS 4252 can be heat-treated to enhance its mechanical properties, strength, and hardness. The heat treatment process involves a series of heating and cooling steps that are carefully controlled to achieve the desired material properties. These steps include solution heat treatment, quenching, and precipitation hardening. The specific heat treatment process used depends on the application requirements.


In conclusion, AMS 4252 is a high-strength aluminium alloy with excellent corrosion resistance, good weldability, and high mechanical strength. Its composition, physical and mechanical properties, uses, hardness and heat treatment process make it ideal for aerospace, defence, automotive, marine, and construction applications. This blog post has provided all the necessary information about this material.

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