AMS 4083 Aluminum Alloy – Composition, Properties and Uses
If you are in the aerospace and defence industry, you might have heard the term AMS4083. AMS 4083 is one of the most commonly used alloys for making components in this industry. The alloy is characterized by its excellent strength, hardness, and wear resistance, which makes it ideal for critical applications that require high reliability and durability. This blog post will explore everything you need to know about AMS4083: its composition, physical and mechanical properties, uses, hardness, and heat treatment.
What is AMS 4083?
AMS 4083 (also known as 6061 Aluminum Alloy) is a unique material commonly used in the aerospace industry. This alloy belongs to the category of aluminum-bronze alloys and exhibits excellent mechanical properties such as high strength, corrosion resistance, and wear resistance. It is primarily used for manufacturing intricate parts and components in aircraft and spacecraft due to its ability to withstand extreme conditions. AMS4083 is also used in marine applications and manufacturing tanks and valves. This remarkable material has proven to be a reliable and durable solution for the aerospace industry and beyond.
What form is AMS 4083 Available at Piping Mart?
- Pipes
- Tubing
- Sheet Plates
- Pipe Fittings
- Forged Fittings
AMS 4083 Composition
AMS 4083 is a nickel-cobalt-chromium-molybdenum alloy that belongs to the family of superalloys. The alloy is composed of 39% nickel, 21% cobalt, 19% chromium, 11.5% molybdenum, and 3% titanium, with trace amounts of iron, silicon, and aluminum. The alloy has excellent resistance to corrosion, oxidation, and high-temperature deformation, which makes it suitable for use in extreme environments.
| Element | Content (%) |
|---|---|
| Aluminium / Aluminum, Al | 97.9 |
| Magnesium, Mg | 1 |
| Silicon, Si | 0.60 |
| Copper, Cu | 0.28 |
| Chromium, Cr | 0.20 |
AMS 4083 Physical Properties
AMS 4083 has a density of 8.19 g/cm3 and a melting point of 1340°C (2444°F). The alloy exhibits excellent thermal stability and can withstand temperatures up to 900°C (1652°F). The alloy also has a low thermal expansion coefficient, which means it can maintain its shape and size even at high temperatures.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 2.7 g/cm3 | 0.0975 lb/in3 |
| Melting point | 588°C | 1090°F |
AMS 4083 Mechanical Properties
AMS 4083 has excellent mechanical properties, including high tensile strength, yield strength, and elongation. The alloy has a tensile strength of 207 ksi (1425 MPa), yield strength of 128 ksi (880 MPa), and an elongation of 23%. The alloy also exhibits good fatigue resistance and fracture toughness, making it suitable for high-stress 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 4083 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 4083 Uses
AMS 4083 is commonly used in making components for aerospace and defence applications such as turbine engines, compressor disks, and airframe parts. The alloy is also used in chemical processing, nuclear power generation, and medical applications. Due to its excellent strength and wear resistance, AMS 4083 is an ideal material for critical applications that require high reliability and durability.
AMS 4083 Hardness
AMS 4083 has a hardness range of 31 to 41 HRC (Rockwell C). Heat treatment can harden the alloy to increase its strength and wear resistance. The hardness of the alloy can be controlled by adjusting the temperature and time of the heat treatment.
AMS 4083 Heat treatment
AMS 4083 can be heat treated by solution annealing, stress relieving, and precipitation hardening. Solution annealing involves heating the alloy to a high temperature and cooling it rapidly to improve its ductility and toughness. Stress relieving reduces the residual stresses in the alloy that can lead to deformation and cracking. Precipitation hardening involves heating the alloy to a high temperature and then cooling it slowly to allow the precipitation of hardening phases that increase the strength and hardness of the alloy.
Conclusion:
AMS 4083 material is a versatile nickel-cobalt-chromium-molybdenum alloy with excellent strength, hardness, and wear resistance. The alloy is ideal for critical aerospace and defence applications requiring high reliability and durability. Its excellent properties make it suitable for use in extreme environments such as high temperatures and corrosive environments. Understanding the composition, physical and mechanical properties, uses, hardness and heat treatment of AMS 4083 is essential for anyone involved in the manufacturing or designing components in the aerospace and defence industry.
A passionate metal industry expert and blogger. With over 5 years of experience in the field, Palak brings a wealth of knowledge and insight to her writing. Whether discussing the latest trends in the metal industry or sharing tips, she is dedicated to helping others succeed in the metal industry.
