ThePipingMart Blog Grades AMS 4023 Aluminum Alloy – Composition, Properties and Uses

AMS 4023 Aluminum Alloy – Composition, Properties and Uses

AMS 4023

Have you ever used a material designed for high-stress applications or harsh environments? You may have encountered AMS4023. This aerospace-grade aluminium alloy is known for its excellent mechanical properties and resistance to corrosion, making it a popular choice for various industries. But beyond its benefits, what exactly is AMS 4023, and what are its applications? In this blog, we will explore its composition, physical and mechanical properties, as well as its common uses and heat treatment.

What is AMS 4023?

If you’re in the aerospace industry, you may have heard of AMS 4023 (also known as 6061 Aluminum Alloy). This is the specification for an aluminium alloy that is commonly used in aircraft components. But what sets this alloy apart from others? Well, AMS4023 has excellent strength-to-weight ratios, making it ideal for applications where weight is critical. It also has good corrosion resistance, so it can withstand harsh environments without degrading over time. So if you’re looking for a reliable and high-performing material for your aviation needs, AMS4023 might be what you’re looking for.

What Form is AMS 4023 Available at Piping Mart?

  • Pipes
  • Tubing
  • Sheet Plates
  • Forged Fittings
  • Pipe Fittings

AMS 4023 Composition

AMS4023 is a wrought aluminium alloy composed of mainly aluminium, with added elements of copper, magnesium, and manganese. The copper content in AMS 4023 provides high strength and improves machinability, while magnesium improves its resistance to corrosion. The small amount of manganese helps reduce cracking and improves heat treatment response. Additionally, it contains traces of other elements like silicon, iron, and zinc to improve its overall properties.

Element Content (%)
Aluminium / Aluminum, Al 97.9
Magnesium, Mg 1
Silicon, Si 0.60
Copper, Cu 0.28
Chromium, Cr 0.20

AMS 4023 Physical Properties

AMS4023 is known for its good toughness and resistance to fatigue, making it ideal for high-stress applications. It has a density of 2.80 g/cm3 and a melting point of around 582°C. This alloy also has excellent thermal conductivity, making it a great choice for heat transfer applications such as radiators and heat exchangers.

Properties Metric Imperial
Density 2.7 g/cm3 0.0975 lb/in3
Melting point 588°C 1090°F

AMS 4023 Mechanical Properties

AMS 4023 has excellent mechanical properties, with excellent strength and toughness. It has a minimum ultimate tensile strength of 310 MPa and a minimum yield strength of 275 MPa. Its elongation at break is around 11%, making it very malleable. Its shear strength is around 195 MPa, with a Brinell hardness of around 75. Its high strength-to-weight ratio makes it a preferred material for aerospace and automotive applications.

Properties Metric Imperial
Tensile strength 310 MPa 45000 psi
Yield strength 276 MPa 40000 psi
Shear strength 207 MPa 30000 psi
Fatigue strength 96.5 MPa 14000 psi
Elastic modulus 68.9 GPa 10000 ksi
Poisson’s ratio 0.33 0.33
Elongation 12-17% 12-17%
Hardness, Brinell 95 95

AMS 4023 Equivalents

AMS 4117 ASTM B247 ASTM B429 DIN 3.3211 MIL G-18014 QQ A-200/8
ASTM B209 ASTM B307 ASTM B483 MIL A-12545 MIL G-18015 QQ A-225/8
ASTM B210 ASTM B313 ASTM B547 MIL A-22771 MIL P-25995 QQ A-250/11
ASTM B211 ASTM B316 ASTM B548 MIL F-17132A MIL T-7081 QQ A-367
ASTM B221 ASTM B345 ASTM B632 MIL F-18280 MIL W-23351 QQ A-430
ASTM B234 ASTM B361 ASTM F467 MIL F-39000 MIL W-85 QQ WW-T-700/6
ASTM B241 ASTM B404 ASTM F468 MIL F-3922 QQ A-200/16 SAE J454

AMS 4023 Uses

AMS 4023 is highly versatile and therefore finds applications in many high-stress environments. It is commonly used in aerospace for structural components such as fuselages, wings, and landing gear. AMS 4023 is also used in the automotive industry for suspension components, frames, and wheels. It is also used in marine applications due to its high corrosion resistance.

AMS 4023 Hardness

The Brinell hardness of AMS 4023 is around 75, making it relatively soft. However, its strength and toughness make it a preferred material for high-stress applications. The hardness of AMS 4023 can be increased through heat treatment, enhancing its strength and mechanical properties.

AMS 4023 Heat Treatment

AMS 4023 can be heat-treated to improve its mechanical properties. The preferred heat treatment method is solution heat treatment at around 510°C, followed by rapid quenching in water. This process helps reduce the risk of stress corrosion cracking and improves its strength and toughness.


AMS 4023 material is an excellent aluminium alloy designed to withstand high-stress and corrosive environments. Its composition, physical and mechanical properties make it a preferred material for various industries, including aerospace, automotive, and marine. With its versatility and heat-treatable properties, it is no surprise that AMS 4023 is a popular choice for high-stress applications. Whether you want to improve your mechanical design or consider a material upgrade, AMS 4023 may be your answer.

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