ThePipingMart Blog Grades AMS 4082 Aluminum Alloy – Composition, Properties and Uses

AMS 4082 Aluminum Alloy – Composition, Properties and Uses

AMS 4082

AMS4082 is a high-strength, low-alloy steel that offers excellent mechanical properties and resistance to wear and tear. This material is commonly used in aerospace and other applications requiring high strength and durability. If you’re curious about the composition, properties, and uses of AMS 4082, look no further. In this blog post, we’ll cover everything you need to know about this particular material.

What is AMS 4082?

If you’re in the aerospace industry, you’re most likely familiar with AMS specifications. AMS 4082 (also known as 6061 Aluminum Alloy) refers to a specific type of aluminium alloy commonly used in aircraft manufacturing. This particular alloy is known for its high strength and excellent resistance to corrosion. It’s often used for structural components like wing spars or fuselage frames. Proper selection of materials is crucial in the aerospace industry, and using an alloy like AMS4082 ensures that aircraft are as safe and reliable as possible. Even if you’re not in the aviation industry, learning about the specialized materials used to build the machines that take us to the skies is always fascinating.

What form is AMS 4082 Available at Piping Mart?

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

AMS 4082 Composition:

AMS4082 comprises carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, and vanadium. Combining these elements gives the material its high strength and durability. The carbon content ranges from 0.18% to 0.23%, while the silicon content is between 0.15% and 0.35%. Other elements are present in smaller quantities, but all contribute to the material’s overall performance.

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

AMS 4082 Physical Properties:

AMS 4082 has a density of 7.86 g/cm³, which is similar to other steel alloys. Its melting point is around 1425°C, with a thermal conductivity of 46.6 W/mK. The material is magnetic, and it has good corrosion resistance properties. It can also withstand high temperatures, making it ideal for harsh environments.

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

AMS 4082 Mechanical Properties:

AMS 4082 has excellent mechanical properties, including high tensile strength, yield strength, and hardness. The tensile strength ranges from 1040 MPa to 1210 MPa, while the yield strength is between 945 MPa and 1140 MPa. The material also has a high hardness rating, with a Rockwell C hardness of 35 to 41. These properties make it suitable for demanding applications requiring durability and strength.

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 4082 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 4082 Uses:

AMS 4082 is widely used in the aerospace industry to manufacture aircraft components, such as gears, shafts, and bolts. It is also used in the automotive sector to produce high-performance parts. The material’s high strength and durability make it an excellent choice for applications requiring wear and tear resistance, such as heavy-duty machinery and tools.

AMS 4082 Hardness:

AMS 4082 has a high hardness rating, which makes it a popular choice for applications that require durability and strength. The material’s hardness can be improved through heat treatment, which involves heating the material to a high temperature and then quenching it in water or oil. This process can increase the material’s strength and toughness, making it more suitable for demanding applications.

AMS 4082 Heat treatment:

Heat treatment is a crucial aspect of AMS 4082’s manufacturing process. Subjecting the material to specific heat treatment processes can significantly improve its mechanical properties. The heat treatment process can involve annealing, normalizing, or quenching and tempering, depending on the desired properties of the material. The process is carefully monitored to ensure the material’s properties are not compromised.


AMS 4082 material is a high-strength, low-alloy steel commonly used in the aerospace industry and other applications requiring durability and strength. The material’s composition, physical and mechanical properties, uses hardness, and heat treatment processes contribute to its excellent performance. Whether you’re looking for a material that can withstand high temperatures or resist wear and tear, AMS 4082 is a perfect choice that won’t disappoint.

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