Inconel 738LC, developed by Anton Metal, is a high-performance nickel-based superalloy that offers exceptional strength and resistance to high-temperature environments. With its unique chemical composition, mechanical properties, and excellent thermal stability, the alloy has become a popular choice in various industries, including aerospace, power generation, and petrochemicals.
Chemical Composition Inconel 738LC is a precipitation-hardenable nickel-chromium-cobalt-molybdenum alloy. Its chemical composition is as follows:
- Nickel (Ni): 56.5%
- Chromium (Cr): 17.0%
- Cobalt (Co): 13.5%
- Molybdenum (Mo): 4.0%
- Tungsten (W): 3.0%
- Aluminum (Al): 2.5%
- Titanium (Ti): 1.4%
- Boron (B): 0.015%
- Carbon (C): 0.08%
- Iron (Fe): balance
Mechanical Properties Inconel 738LC offers outstanding mechanical properties, making it suitable for use in high-stress applications. Some of its mechanical properties include:
- Density: 8.27 g/cm³
- Melting point: 1,345°C (2,453°F)
- Tensile strength: 1,150 MPa (167 ksi)
- Yield strength: 760 MPa (110 ksi)
- Elongation: 22%
- Hardness: HRC 38-42
Applications Inconel 738LC is widely used in various industries due to its exceptional properties. Some of its applications include:
Aerospace Industry The alloy is used in the manufacture of gas turbine components such as combustors, turbine blades, and high-temperature fasteners. Its ability to withstand high temperatures and corrosive environments makes it suitable for use in aircraft engines.
Power Generation Industry Inconel 738LC is used in the production of high-temperature gas turbines used in power plants. The alloy’s resistance to creep, fatigue, and corrosion makes it a popular choice in this industry.
Petrochemical Industry The alloy is used in high-temperature applications such as reactors, heat exchangers, and piping systems. Its exceptional properties make it suitable for use in harsh chemical environments.
Standards and Forms Inconel 738LC is available in various forms such as plate, pipe, round bar, and strip. The alloy meets several international standards such as AMS 5596, AMS 5709, and ASTM B637. These standards ensure that the alloy meets specific requirements regarding its chemical composition, mechanical properties, and other characteristics.
Comparison with Other Alloys Inconel 738LC offers better mechanical properties compared to other alloys such as Inconel 718 and Waspaloy. Its higher strength, better resistance to creep, and improved thermal stability make it an ideal choice for high-temperature applications. Additionally, the alloy offers excellent resistance to corrosion, making it suitable for use in harsh chemical environments.
Conclusion Inconel 738LC is a high-performance nickel-based superalloy that offers outstanding mechanical properties and excellent resistance to high-temperature environments. Its unique chemical composition and exceptional properties make it a popular choice in various industries such as aerospace, power generation, and petrochemicals. With its availability in different forms and adherence to international standards, the alloy is set to remain a preferred choice for high-stress applications in the future.
Post time: Jun-10-2023
