When selecting a material for machining, fabrication, or aerospace applications, it’s important to look for one that boasts excellent mechanical and physical properties. One material that meets these requirements is AMS 4154. This blog post will explore AMS 4154’s composition, physical and mechanical properties, hardness, and heat treatment.
What is AMS 4154?
AMS 4154 (also known as 7075 Aluminum Alloy) specifies the minimum requirements for elastomeric seals used in aerospace fuel systems. These seals must withstand harsh conditions, such as extreme temperatures and high pressures, without compromising the system’s integrity. The specification outlines the specific materials and test procedures that these seals must meet to be considered compliant with AMS 4154. With so much riding on the performance of these seals, it’s no wonder that aerospace engineers take their selection and testing so seriously. Understanding the requirements of AMS 4154 is key to ensuring the safety and reliability of aerospace fuel systems.
What Form Is AMS 4154 Available at Piping Mart?
- Pipes
- Tubing
AMS 4154 Composition
AMS 4154 is a low-alloy steel commonly used in the aerospace industry. It is known for its excellent combination of strength, toughness, and resistance to wear and tear. AMS 4154 includes Chromium, Nickel, Manganese, Molybdenum, and Carbon. This alloy is manufactured through vacuum-induction melting, ensuring it is free from impurities or defects. The high purity of AMS 4154 contributes to its superior mechanical properties.
|
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
Ti |
Others-Each |
Others Total |
Al |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4154 |
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 4154 Mechanical Properties
| Alloy-Temper |
Tensile Strength (ksi) |
Yield Strength (ksi) |
Elongation (%) |
|---|---|---|---|
| 7075-O |
33 |
15 |
16 |
| 7075-T6 |
83 |
73 |
11 |
AMS 4154 Physical Properties
Regarding physical properties, AMS 4154 is a dense and hard material with a specific gravity of 7.85. Its melting point is about 1480 degrees Celsius, which makes it suitable for high-temperature applications. One of the most remarkable mechanical properties of AMS 4154 is its excellent fracture toughness. This material exhibits a U-notch impact toughness of over 60 ft-lbs at -65 degrees Fahrenheit. Its ultimate tensile strength and yield strength are impressive at 225 ksi and 160 ksi, respectively.
AMS 4154 Uses
AMS 4154 is widely used in the aerospace industry for manufacturing aircraft parts, such as landing gears, propeller shafts, and connecting rods. Its ability to withstand high temperatures and wear make it ideal for these applications. In addition, AMS 4154 finds use in the automotive and hydraulic industry, where the parts must be tough and durable.
AMS 4154 Hardness
Regarding hardness, AMS 4154 boasts an impressive Brinell hardness number of 235 to 277. The hardness of AMS 4154 can be increased through heat treatment. Heat treatment involves heating the material at 1650 degrees Fahrenheit, followed by slow cooling in the furnace. This process increases hardness and strength.
Conclusion:
AMS 4154 is an excellent choice for high strength, toughness, and wear resistance applications. Its excellent combination of mechanical and physical properties makes it a favourite in the aerospace industry. Its applications are not limited to aerospace, as it also finds use in the automotive and hydraulic industries. With its impressive properties, increase in hardness through heat treatment, and wide range of uses; it’s no wonder that AMS 4154 is a sought-after material.
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.
