Introduction:
Inconel 751, 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 751 is a precipitation-hardenable nickel-chromium-cobalt alloy. Its chemical composition is as follows:
- Nickel (Ni): 70.0%
- Chromium (Cr): 15.0%
- Cobalt (Co): 8.0%
- Iron (Fe): 4.0%
- Molybdenum (Mo): 1.0%
- Aluminum (Al): 0.9%
- Titanium (Ti): 0.5%
- Copper (Cu): 0.25%
- Boron (B): 0.008%
- Carbon (C): 0.06%
Mechanical Properties:
Inconel 751 offers outstanding mechanical properties, making it suitable for use in high-stress applications. Some of its mechanical properties include:
- Density: 8.28 g/cm³
- Melting point: 1,390°C (2,534°F)
- Tensile strength: 1,320 MPa (191 ksi)
- Yield strength: 1,040 MPa (150 ksi)
- Elongation: 30%
- Hardness: HRC 35-45
Applications:
Inconel 751 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 blades, discs, and rings. Its ability to withstand high temperatures and corrosive environments makes it suitable for use in aircraft engines.
Power Generation Industry:
Inconel 751 is used in the production of high-temperature gas turbines and steam turbine components. Its resistance to creep and fatigue makes it a popular choice in this industry.
Petrochemical Industry:
The alloy is used in chemical processing equipment such as reactors, heat exchangers, and piping systems. Its excellent resistance to corrosion and oxidation makes it suitable for use in harsh chemical environments.
Standards and Forms:
Inconel 751 is available in various forms such as plate, pipe, round bar, and strip. The alloy meets several international standards such as AMS 5542, AMS 5598, 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 751 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 751 is a high-performance nickel-based superalloy that offers exceptional 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
