\AMS 4169 is one of the most sought-after engineering plastics among the aerospace and defence industries. With its exceptional mechanical and physical properties, it’s highly favoured for making high-performance components ranging from aircraft parts to military vehicles. This blog post will dive deeper into AMS 4169’s composition, physical and mechanical properties, hardness, heat treatment, and uses.
What is AMS 4169?
AMS 4169 (also known as 7075 Aluminum Alloy) is a standard set by the aerospace industry to ensure the quality and safety of materials used in aircraft. It provides strict guidelines for the testing, performance, and qualifications of materials, such as sealants, coatings, and adhesives. In other words, AMS 4169 sets a high bar for the materials used in planes to ensure they can withstand extreme flight conditions and maintain high safety. This standard is continually reviewed and updated to stay up-to-date with the latest technological advancements, making it an essential part of the aviation industry. If you’re interested in learning more about how AMS 4169 impacts the design and construction of aircraft, a wealth of information is available online.
What Forms is AMS 4169 Available at Piping Mart?
- Pipes
- Tubing
AMS 4169 Composition
AMS 4169 is a thermoplastic composite that comprises 40% carbon, 5% graphite, and 55% polyetheretherketone (PEEK) resin. The PEEK resin is responsible for the chemical, heat, and fatigue resistance properties, while the carbon and graphite fibres provide the material with exceptional strength.
|
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
Ti |
Others-Each |
Others Total |
Al |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4169 |
0.40 |
0.50 |
1.2-2.0 |
0.30 |
2.1-2.9 |
0.18-0.28 |
5.1-6.1 |
0.20 |
0.05 |
0.15 |
Remainder |
AMS 4169 Physical Properties
AMS 4169 boasts some of the most impressive physical properties when engineering plastics. It has a density of 1.43 g/cm³, a thermal conductivity of 0.5 W/m.K, and an expansion coefficient of 5×10³/°C. Additionally, it offers great resistance against impact, radiation, corrosives, solvents, and temperature up to 215°C.
AMS 4169 Mechanical Properties
The mechanical properties of AMS 4169 make it an excellent choice for applications that need high strength, stiffness, and toughness. The material has a tensile strength of 196 MPa, a flexural modulus of 14.3 GPa, and a compressive strength of 166 MPa. Furthermore, it doesn’t suffer from creep and can withstand high loads and vibrations.
| Alloy-Temper |
Tensile Strength (ksi) |
Yield Strength (ksi) |
Elongation (%) |
|---|---|---|---|
| 7075-O |
33 |
15 |
16 |
| 7075-T6 |
83 |
73 |
11 |
AMS 4169 Uses
AMS 4169 is an excellent material choice for making high-performance components for the aerospace and defence industries. It is commonly used to manufacture aircraft brackets, bolts, cable guides, and bushings. In addition, it’s utilized for manufacturing automotive and heavy industrial components like gears, bearings, and seals.
AMS 4169 Hardness
AMS 4169 has a Rockwell hardness rating of M106, which makes it slightly soft compared to metals. Typically, the material requires heat treatment to achieve a Rockwell hardness of M107.
AMS 4169 Heat Treatment
Heat treatment is often necessary to harden the AMS 4169 to meet the required mechanical strength. The process involves heating the material to 375°C and then quenching it rapidly. After quenching, it is tempered at 160°C to 200°C.
Conclusion
AMS 4169 is a thermoplastic composite material renowned for offering outstanding mechanical and physical properties. It’s a popular choice for manufacturing various high-performance components in the aerospace and defence industries. Its great resistance against temperature, corrosion, solvents, and radiation allows for increased component longevity. The material can be hardened to meet specific mechanical properties through heat treatment, and thus AMS 4169 is an excellent choice for critical applications that require reliable and durable materials.
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