Finding the perfect material for a particular application can be challenging in engineering. That’s where AMS standards come in. Known for their high quality and reliability, AMS standards set strict guidelines for materials, and AMS4184 is no exception. In this blog post, we’ll dig into what AMS4184 is, its composition, physical and mechanical properties, hardness, and heat treatment, giving you a better understanding of this critical material standard.
What is AMS 4184?
AMS 4184 ( also known as Aluminium 4145) is a specification that outlines the requirements for cast aluminium alloys used in high-temperature applications. This standard ensures that the alloys have the necessary mechanical properties and resistance to corrosion to perform reliably in extreme conditions. AMS4184 plays a crucial role in industries such as aerospace, where the demand for high-performance materials is exceptionally high. By adhering to this specification, manufacturers can be confident that their materials will meet the rigorous standards required for critical applications. So, if you’re looking for materials that can withstand extreme temperatures and offer exceptional performance, then AMS 4184 is undoubtedly worth exploring.
What Form is AMS 4184 Available at Piping Mart?
- Alloy Steel AISI 4145 Bars
AMS 4184 Composition
AMS 4184 is a high-performance bronze alloy that contains 83% copper, 3% lead, and 7% nickel. It is also known as C95500 and is commonly called Nickel Aluminum Bronze. The percentage of aluminium in AMS 4184 is less than 1%, which makes it different from other Nickel Aluminum Bronzes. The presence of nickel enhances the alloy’s corrosion resistance and makes it more durable.
| Element | Content (%) |
|---|---|
| Aluminum, Al | 83 – 87.4 |
| Silicon, Si | 9.3 – 10.7 |
| Copper, Cu | 3.3 – 4.7 |
| Iron, Fe | ≤ 0.80 |
| Zinc, Zn | ≤ 0.20 |
| Magnesium, Mg | ≤ 0.15 |
| Chromium, Cr | ≤ 0.15 |
| Manganese, Mn | ≤ 0.15 |
| Beryllium, Be | ≤ 0.00080 |
| The remainder (each) | ≤ 0.050 |
| The rest (total) | ≤ 0.15 |
AMS 4184 Physical Properties
The physical properties of AMS 4184 include a density of 7.7 g/cm3, a melting point of 1040°C, and a thermal conductivity of 38 W/m-K. It also has a high electrical conductivity of 13% IACS and is non-magnetic, making it an excellent material for electronic components. The thermal expansion coefficient of AMS 4184 is low, which makes it a popular material for making mechanical parts that require low thermal expansion coefficients.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 2.74 g/cm3 | 0.0990 lb/in3 |
| Melting point | 521-585°C | 970-1085°F |
AMS 4184 Mechanical Properties
AMS 4184 has excellent mechanical properties, making it a popular choice for producing complex components in the aerospace industry. It has high strength, good wear resistance, and superior resistance to corrosion and fatigue. Its tensile strength is about 900 MPa, and its yield strength is approximately 550 MPa. The elongation at break is about 12%, which indicates good ductility. Its Rockwell hardness is around 25-30 HRC.
AMS 4184 Equivalent
- ANSI/AWS A5.10 (ER & R)
- ANSI/AWS A5.8
- AMS 4184
AMS 4184 Uses
AMS 4184 is widely used in various applications, especially aerospace and marine industries. Its high strength and excellent corrosion resistance makes it ideal for producing parts in harsh environments. It manufactures bushings, gears, valve components, bearings, and other factors. AMS 4184 manufactures propellers, naval hardware, and underwater equipment in the marine industry.
AMS 4184 Hardness
Hardness is an essential factor when selecting a material for a particular application. The hardness of AMS 4184 is approximately 25-30 HRC, making it a relatively soft material. It can be easily machined and is a popular material for making intricate parts requiring precision machining. Its low hardness, however, makes it unsuitable for applications that require high wear resistance.
AMS 4184 Heat treatment
Heat treatment is an essential process that alters the mechanical properties of a material by heating and cooling it in a controlled environment. AMS 4184 can be heat-treated to improve its mechanical properties. The standard heat treatment for AMS 4184 involves heating the material to 810-900°C and quenching it in water. The heat treatment process enhances the alloy’s strength and makes it more durable.
Conclusion
AMS 4184 material is a high-performance bronze alloy widely used in various applications, especially in the aerospace and marine industries. Its excellent mechanical properties, high strength, and excellent resistance to corrosion and fatigue make it an ideal material for making complex components. AMS 4184 includes 83% copper, 3% lead, and 7% nickel. Its physical properties have a density of 7.7 g/cm3, a melting point of 1040°C, and a thermal conductivity of 38 W/m-K. Its mechanical properties include a tensile strength of around 900 MPa, a yield strength of approximately 550 MPa, and an elongation at break of roughly 12%. The heat treatment process enhances the power of AMS 4184 and makes it more durable. Choosing a suitable material is essential for ensuring the success of any engineering project, and AMS 4184 is undoubtedly an excellent choice.
