AMS 5561 is a high-performance stainless steel alloy specifically designed for aerospace and aviation applications. This superalloy is known for its exceptional strength, durability, and resistance to heat and corrosion, making it a popular choice for a wide range of industrial and engineering applications. In this blog post, we’ll closely examine the composition, physical and mechanical properties, and uses of AMS 5561.
What is AMS 5561?
AMS 5561 (also known as Stainless Steel – Grade 21-6-9) is a specification for a specific type of stainless steel. This type of stainless steel is known for its high-temperature resistance and exceptional strength, making it ideal for harsh environments. Whether you’re looking to build an aircraft engine or a high-end exhaust system for your car, AMS5561 is a material you can count on to withstand the toughest conditions. With its unique properties and superior performance, it’s no wonder that AMS5561 is quickly becoming a go-to material for engineers and manufacturers worldwide. So if you’re looking for a reliable and durable material to help you create high-quality products, AMS 5561 is worth considering.
AMS 5561 Composition
AMS 5561 sheet is a nickel-based superalloy that contains a significant amount of chromium and molybdenum. The alloy also includes small amounts of titanium, tantalum, and cobalt, which helps to improve its strength and corrosion resistance. The composition of AMS 5561 makes it ideal for applications where toughness, high-temperature strength, and oxidation resistance are required.
| Element | Content (%) |
|---|---|
| Iron, Fe | 64 |
| Chromium, Cr | 20 |
| Manganese, Mn | 9 |
| Nickel, Ni | 6 |
| Silicon, Si | 1 |
| Nitrogen, N | 0.23 |
| Carbon, C | 0.080 |
| Phosphorous, P | 0.060 |
| Sulfur, S | 0.030 |
AMS 5561 Physical Properties
AMS 5561 is a non-magnetic alloy that has a specific gravity of 8.3. It has a melting point of 1399°C (2550°F), higher than many other stainless steel alloys. The alloy has a density of 0.301 lb/in3 and a thermal conductivity of 6.5 BTU-in/hr-ft2-°F. Regarding physical properties, AMS 5561 is known for its resistance to thermal expansion and excellent dimensional stability.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.83 g/cm3 | 0.283 lb/in³ |
AMS 5561 Mechanical Properties
AMS 5561 plate has impressive mechanical properties, especially when it comes to its strength and hardness. It has a tensile strength of 200,000 psi and a yield strength of 170,000 psi. The alloy has an elongation of 10%, which is lower than many other stainless steel alloys but is still considered suitable for many applications. AMS 5561 has an impressive hardness of Rockwell C40, making it ideal for applications that require high wear resistance.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 883 MPa | 128000 psi |
| Tensile strength, yield (@0.2%) | 745 MPa | 108000 psi |
| Elongation at break (in 50 mm) | 56% | 56% |
| Modulus of elasticity (typical for stainless steel) | 200 GPa | 29000 ksi |
| Machinability (based on 100 machinability for AISI 1212 steel) | 30 | 30 |
AMS 5561 Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@ 25-95°C/77-203°F) | 16.7 µm/m°C | 9.28 µin/in°F |
| Thermal conductivity (@-180°C/-292°C) | 7.80 W/mK | 54.1 BTU in/hr.ft².°F |
AMS 5561 Equivalent
- AMS 5562
- AMS 5656
- Stainless Steel Grade 21-6-9
- UNS S21900
- ASTM A269 (XM-10)
- ASTM A276 (XM-10)
- ASTM A312 (XM-10)
- ASTM A314 (XM-10)
- ASTM A412 (XM-10)
- ASTM A479 (XM-10)
- ASTM A580 (XM-10)
- ASTM A813 (XM-10)
- ASTM A814 (XM-10)
AMS 5561 Uses
AMS 5561 tubing is widely used in aerospace and aviation industries to produce components such as turbine blades, combustion chambers, and exhaust systems. The alloy’s superior mechanical and thermal properties, such as gas turbine engines, are ideal for high-temperature environments. AMS 5561 is also used in chemical processing plants, nuclear reactors, and other applications where resistance to heat and corrosion is essential.
AMS 5561 Hardness
AMS 5561 is known for its impressive hardness, higher than many other stainless steel alloys. The Rockwell C40 hardness of AMS 5561 makes it ideal for applications with high wear resistance. The alloy’s superior hardness also allows it to withstand high temperatures and harsh operating conditions without becoming deformed or damaged.
AMS 5561 Heat Treatment
AMS 5561 is a precipitation-hardening alloy that can be strengthened by heat treatment. Heat treating AMS 5561 involves heating the alloy to a specific temperature and then cooling it in a controlled manner. This process helps to improve the alloy’s strength and hardness, making it suitable for use in a wide range of demanding applications.
Conclusion:
AMS 5561 material is a high-performance stainless steel alloy that is used in a wide range of industrial and engineering applications. With its superior strength, durability, and resistance to heat and corrosion, AMS 5561 is a popular choice for components used in aerospace, aviation, and chemical processing industries. Understanding the composition, physical and mechanical properties, and uses of AMS 5561 is crucial for anyone interested in working with this impressive superalloy.
Meet Bhavesh, a seasoned blogger with a wealth of knowledge and experience. From metal products manufacturing to retail, Bhavesh has a diverse background in various industries and is dedicated to sharing his insights and expertise with readers.
