Introduction:
Inconel 718 is a high-temperature nickel-based alloy that offers exceptional strength, corrosion resistance, and thermal stability. It contains nickel, chromium, iron, and other elements that provide it with unique properties such as high-temperature strength, good weldability, and outstanding resistance to oxidation and carburization. ANTON METAL is a leading supplier of Inconel 718 plates, pipes, round bars, and strips. This article will provide a detailed analysis of Inconel 718, covering its chemical composition, mechanical properties, applications, standards, and comparison with other high-temperature alloys.
Chemical Composition:
The chemical composition of Inconel 718 consists of nickel (50.0% min), chromium (17.0-21.0%), iron (18.5-21.5%), niobium + tantalum (4.75-5.5%), molybdenum (2.8-3.3%), titanium (0.65-1.15%), aluminum (0.2-0.8%), and other trace elements such as manganese, silicon, and carbon. This unique combination of elements provides Inconel 718 with its superior properties such as high-temperature strength, corrosion resistance, and excellent ductility.
Mechanical Properties:
Inconel 718 exhibits excellent mechanical properties, making it ideal for use in high-temperature applications. Its tensile strength ranges from 1275 MPa to 1450 MPa, and its yield strength ranges from 1035 MPa to 1240 MPa. The alloy also has good toughness and ductility, making it easy to work with and form into various shapes and sizes. Additionally, Inconel 718 has high fatigue strength and resistance to cracking and fracture, even when subjected to repeated thermal cycling.
Applications:
Inconel 718 finds application in various industries, including aerospace, power generation, and chemical processing. In the aerospace industry, Inconel 718 is used for turbine blades, combustion chambers, and other components that require high-temperature strength and resistance to corrosion. In the power generation industry, the alloy is used for components in gas turbines, steam turbines, and nuclear reactors that operate at high temperatures. In the chemical processing industry, Inconel 718 is utilized for reactor vessels, heat exchangers, and piping systems that handle corrosive chemicals such as sulfuric acid, hydrochloric acid, and nitric acid at high temperatures.
Standards:
Inconel 718 meets various international standards such as ASTM B637 (bar), ASTM B670 (plate), ASTM B673 (strip), and ASME SB-564 (forgings). These standards ensure that Inconel 718 products meet specific requirements regarding chemical composition, mechanical properties, and performance in high-temperature applications.
Comparison:
Inconel 718 is often compared with other high-temperature alloys such as Inconel 625, Hastelloy X, and Waspaloy. Compared to Inconel 625, Inconel 718 offers superior high-temperature strength and improved resistance to oxidation and carburization. When compared to Hastelloy X, Inconel 718 exhibits better overall corrosion resistance and improved resistance to fatigue and stress rupture. In comparison to Waspaloy, Inconel 718 has better weldability and improved resistance to thermal fatigue. Each alloy has its unique properties and applications, and the choice of alloy depends on specific requirements and operating conditions.
ANTON METAL’s Inconel 718 Products: ANTON METAL is a reliable supplier of high-quality Inconel 718 products such as plates, pipes, round bars, and strips. The company offers custom cutting and machining services to meet specific customer needs. The plates are available in various thicknesses and sizes, while the pipes come in seamless and welded types with varying diameters and lengths. The round bars and strips are available in different grades and can be machined to different shapes and sizes.
Conclusion: Inconel 718 is a versatile and high-temperature nickel-based alloy that offers exceptional strength, corrosion resistance, and thermal stability. ANTON METAL is a leading supplier of Inconel 718 plates, pipes, round bars, and strips, providing high-quality products that meet stringent international standards. By leveraging the superior properties of Inconel 718, businesses across various industries can achieve optimal performance, reliability, and efficiency in their operations.
Post time: Jun-10-2023
