ThePipingMart Blog Grades AMS 4077 Aluminum Alloy – Composition, Properties, and Uses

AMS 4077 Aluminum Alloy – Composition, Properties, and Uses

AMS 4077

Engineers and manufacturers across various industries rely on high-performance materials to create strong, durable, and efficient products. Among the many materials available, AMS 4077 stands out for its exceptional properties and versatility. If you are curious about this alloy and want to know more about its composition, properties, and uses, continue reading this blog.

What is AMS 4077?

AMS 4077 (also known as Aluminium alloy 2024) is a specification created by the aerospace industry that outlines the requirements for aluminium alloy products used in aircraft structures. This specification governs the chemical and mechanical properties and the alloy’s processing and testing methods. An AMS4077-certified alloy must meet strict standards for strength, fatigue resistance, and durability, making it a reliable choice for aerospace applications. Using such high-performance alloys is critical to ensuring the safety and reliability of modern aircraft, and the AMS4077 specification plays a vital role in maintaining these standards. For anyone looking to work with aluminium alloys in the aerospace industry, a thorough understanding of AMS4077 is essential.

What Form is AMS 4077 Available at Piping Mart?

  • Pipes
  • Tubing

AMS 4077 Composition

AMS 4077 is an aluminium alloy with several elements, including copper, magnesium, iron, and zinc. The exact composition of the alloy depends on the requirements of the end product. However, the standard composition of AMS 4077 includes 2.2-2.8% copper, 1.6-2.1% magnesium, 0.5-1.0% iron, and 0.25% zinc.

% Si Fe Cu Mn Mg Cr Zn Ti Bi Ti+Zr Others Al
Minimum 3,80 0,30 1,20
Maximum 0,50 0,50 4,90 0,90 1,80 0,10 0,25 0,15 0,20 0,15 rest

AMS 4077 Physical Properties

AMS 4077 has excellent physical properties that make it suitable for various applications. Its density is 2.78 g/cm3, with a melting point of 590-940°C. The alloy also has high strength and can withstand temperatures up to 350°C. It is also highly resistant to corrosion and has good machinability.

Density (lb / cu. in.) 0.1
Specific Gravity 2.78
Melting Point (Deg F) 950
Modulus of Elasticity Tension 10.6
Modulus of Elasticity Torsion 4

AMS 4077 Mechanical Properties

Aside from its physical properties, AMS 4077 also exhibits excellent mechanical properties. Its ultimate tensile strength is 550 MPa, and its yield strength is 400 MPa. AMS 4077 also has a high fatigue strength, with a stress range of 140 MPa.

Temper> Tensile Strength> Yield Strength> Elongation>
KSI> KSI> %>
(annealed) 32 14 12
T3 63 42 15

AMS 4077 Uses

AMS 4077 is commonly used in the aerospace industry to produce aircraft parts, such as landing gear components, structural parts, wing ribs, and fuselage frames. It is also used in manufacturing military hardware, rockets, and missiles, owing to its exceptional strength, toughness, and durability. In addition, it is also used in the construction of industrial equipment and the automotive industry.

AMS 4077 Hardness

The hardness of AMS 4077 depends on the heat treatment applied to it. When annealed, it has a hardness of 108 HB; when tempered, it has a hardness of 130 HB. If treated with T76, its hardness reaches a maximum level of 160 HB.

AMS 4077 Heat treatment

Heat treatment is essential in optimizing the properties of AMS 4077. It involves heating the alloy to a specific temperature and then cooling it rapidly to increase its hardness and strength. The two types of heat treatment that can be applied to AMS 4077 are solution heat treatment and precipitation heat treatment.


AMS 4077 material is a high-performance aluminium alloy with excellent properties suitable for various industrial applications. Its composition, physical and mechanical properties, hardness, and heat treatment are the primary factors that drive its widespread use across different fields. If you are in the market for a lightweight material with excellent strength and durability, consider AMS 4077. Remember, the end product’s requirements will influence the exact composition and specifications of AMS 4077 used in its production.

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