ThePipingMart Blog Grades AMS 4116 Aluminum Alloy – Composition, Properties and Uses

AMS 4116 Aluminum Alloy – Composition, Properties and Uses

AMS 4116

AMS4116 is an aluminium alloy used in many applications, such as aerospace, defence, and transportation. Its properties make it a popular choice in manufacturing, especially in creating lightweight structures. In this blog post, we’ll dive into the composition, physical and mechanical properties, and uses of AMS 4116. We’ll also cover hardness and heat treatment so you can understand this versatile alloy’s complete picture.

What is AMS 4116?

AMS 4116 (also known as 6061 Aluminum Alloy) is a specification for aluminum alloy sheets and plates. It defines the chemical composition, mechanical properties, and heat treatment requirements for an aluminium alloy commonly used in aerospace. The specification also includes guidelines for the dimensions and tolerances of the sheet and plate and testing and inspection procedures. AMS4116 is an essential standard for manufacturers and suppliers of aerospace components, ensuring that the aluminum alloy used in their products meets the required quality standards. By adhering to the AMS4116 specification, aerospace companies can secure their products are safe and reliable.

What form is AMS 4116 Available at Piping Mart?

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

AMS 4116 Composition

AMS 4116 is a high-strength aluminium alloy that contains copper, magnesium, and zinc. These elements are added precisely to create a material with excellent mechanical properties. The alloy’s composition also includes small amounts of other metals like iron, silicon, and manganese. AMS 4116 falls under the 7xxx series of aluminum alloys known for their high strength and corrosion resistance.

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

AMS 4116 Physical Properties

AMS 4116 boasts excellent physical properties, making it a popular choice in the manufacturing industry. It has a density of 2.78 g/cm³ and a melting point of 595°C. The alloy is also highly corrosion-resistant, making it an ideal choice for harsh environments. With a thermal conductivity of 125 W/mK and an electrical conductivity of 28% IACS, AMS 4116 can withstand high temperatures and has good electrical conductivity.

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

AMS 4116 Mechanical Properties

The mechanical properties of AMS 4116 are impressive, making it an excellent choice for high-stress applications. Its ultimate tensile strength ranges from 480 MPa to 520 MPa, yielding 435 MPa to 475 MPa. It also has a good elongation of 4% to 5%, making it ideal for use in ductility applications. The alloy has a fatigue strength of 140 MPa to 280 MPa, which shows its ability to withstand repeated loading.

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 4116 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 4116 Uses

AMS 4116 has several uses in various industries, particularly aerospace and defence. Its excellent mechanical and physical properties are ideal for aircraft structures and missile components. The alloy is also used in marine structures, oil and gas components, and sports equipment. AMS 4116’s high strength and light weight make it an ideal choice for applications requiring high performance but also lightweight.

AMS 4116 Hardness

AMS 4116 has a Brinell hardness value ranging from 85 to 95. This means that the alloy can withstand high stress and remain durable, making it an ideal choice in applications requiring hardness. However, the particular hardness of AMS 4116 depends on the heat treatment it undergoes.

AMS 4116 Heat Treatment

Heat treatment is a critical process in controlling the mechanical properties of AMS 4116. The alloy can undergo solution heat treatment or ageing treatment. Solution heat treatment involves heating the material to a specific temperature for a set amount of time and then cooling it rapidly to prevent the formation of intermetallic compounds. Ageing treatment, however, involves heating the material to a specific temperature and holding it for a set amount of time to encourage the formation of intermetallic compounds. This treatment significantly improves the strength and hardness of AMS 4116.


AMS 4116 material is a high-strength aluminium alloy with excellent physical and mechanical properties. Its unique composition and properties make it ideal for several applications, particularly aerospace and defence. With its impressive strength and low weight, it’s no surprise that it’s a popular choice in manufacturing. Its hardness can also be controlled through heat treatment, making it versatile and customizable for specific applications. By understanding the properties and uses of AMS 4116, you can take advantage of its impressive characteristics and improve the quality of your manufacturing work.

Related Post