Inconel 718 is a high-temperature alloy forging that has been extensively used in the aerospace and gas turbine industries due to its outstanding mechanical properties and excellent corrosion resistance. This alloy exhibits good strength, toughness, and creep resistance at temperatures up to 1300°F, making it an ideal choice for high-temperature applications.
Chemical Composition of Inconel 718 Alloy
The chemical composition of Inconel 718 includes mainly nickel, chromium, and iron, with smaller amounts of molybdenum, niobium, and titanium. The high nickel content provides excellent corrosion resistance to this alloy, while the other elements contribute to its high strength and good weldability.
Element(%) | Ni | Cr | Fe | Mo | Nb | Ti |
Min. | 50 | 17 | Remainder | 2.8 | 4.75 | 0.65 |
Max. | 55 | 21 | 3.3 | 5.5 | 0.15 |
Element | Al | C | Mn | Si | S | Cu |
Min. | 0.2 |
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Max. | 0.8 | 0.08 | 0.35 | 0.35 | 0.015 | 0.03 |
Properties of Inconel 718 alloy:
Inconel 718 forgings have exceptional mechanical properties, including high tensile and yield strength, elongation, and hardness. The tensile strength of this alloy ranges from 125 to 140 ksi, and the yield strength is typically around 70-80 ksi. In addition, Inconel 718 has excellent fatigue resistance and high toughness, making it suitable for use in critical applications.
Density:8.24 g/cm3
Melting point:1260-1320 ℃
Applications of Inconel 718 superalloy forgings
This high-temperature alloy forging is commonly used in the aerospace industry, where it is used to manufacture parts such as aircraft engine shafts, turbine blades, and structural components. Its excellent strength and corrosion resistance make it ideal for use in the harsh and demanding conditions encountered in the aerospace industry. In the gas turbine industry, Inconel 718 is used to produce high-pressure and temperature components such as combustion chambers, turbine discs, and blades.
Inconel 718 is also widely used in the oil and gas industry, where it is a popular choice for downhole components such as valves, tubing, and other tools that require high strength and corrosion resistance in harsh environments. Its excellent resistance to high-temperature and high-pressure conditions makes it ideal for use in oil and gas exploration and production.
In conclusion, Inconel 718 is a high-temperature alloy forging that has proven to be a reliable and versatile material in many different industries, particularly aerospace, gas turbine, and oil and gas. Its outstanding mechanical properties, excellent corrosion resistance, and ability to withstand harsh environments make it an ideal choice for critical applications and demanding conditions. As such, Inconel 718 forging is a material that should continue to be highly sought after in the years to come, driven by its value and effectiveness.