Introduction:
Inconel 686 is a nickel-based alloy renowned for its exceptional corrosion resistance in highly aggressive environments such as acids, salts, and seawater. It contains nickel, chromium, molybdenum, tungsten, and other elements that give it unique properties such as excellent resistance to pitting and crevice corrosion, high-temperature strength, and good weldability. ANTON METAL is a leading supplier of Inconel 686 plates, pipes, round bars, and strips. This article will provide a detailed analysis of Inconel 686, covering its chemical composition, mechanical properties, applications, standards, and comparison with other high-temperature alloys.
Chemical Composition:
The chemical composition of Inconel 686 consists of nickel (58.0% min), chromium (19.0-23.0%), molybdenum (15.0-17.0%), tungsten (3.0-4.0%), iron (5.0%), and other trace elements such as titanium, aluminum, and cobalt. This unique combination of elements provides Inconel 686 with its superior properties such as high-temperature strength, corrosion resistance, and excellent ductility.
Mechanical Properties:
Inconel 686 has excellent mechanical properties that make it ideal for use in high-temperature applications. Its tensile strength ranges from 700 MPa to 800 MPa, and its yield strength ranges from 300 MPa to 400 MPa. The alloy also exhibits good toughness and ductility, making it easy to work with and form into various shapes and sizes. Additionally, Inconel 686 has high fatigue strength and resistance to cracking and fracture, even when subjected to repeated thermal cycling.
Applications:
Inconel 686 finds application in various industries, including chemical processing, petrochemicals, and pulp and paper. In the chemical processing industry, Inconel 686 is employed for reactor vessels, heat exchangers, and piping systems that handle corrosive chemicals such as sulfuric acid, hydrochloric acid, and nitric acid at high temperatures. In the petrochemical industry, the alloy is used for valves, pumps, and other equipment that operates in corrosive environments with elevated temperatures. In the pulp and paper industry, Inconel 686 is used for bleach plant components such as mixers, agitators, and storage tanks.
Standards:
Inconel 686 meets various international standards such as ASTM B435 (plate), ASTM B564 (round bar), and ASME SB-435 (plate). These standards ensure that Inconel 686 products meet specific requirements regarding chemical composition, mechanical properties, and performance in high-temperature applications.
Comparison:
Inconel 686 is often compared with other high-temperature alloys such as Inconel 625, Hastelloy C276, and Alloy C22. Compared to Inconel 625, Inconel 686 offers better overall corrosion resistance and improved resistance to pitting and crevice corrosion. When compared to Hastelloy C276, Inconel 686 exhibits superior corrosion resistance in oxidizing environments and better resistance to localized corrosion. In comparison to Alloy C22, Inconel 686 has better resistance to phosphoric acid and excellent weldability. Each alloy has its unique properties and applications, and the choice of alloy depends on specific requirements and operating conditions.
ANTON METAL’s Inconel 686 Products: ANTON METAL is a reliable supplier of high-quality Inconel 686 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 686 is a versatile and high-performance nickel-based alloy that offers excellent corrosion resistance, high-temperature strength, and fatigue resistance. ANTON METAL is a leading supplier of Inconel 686 plates, pipes, round bars, and strips, providing high-quality products that meet stringent international standards. By leveraging the superior properties of Inconel 686, businesses across various industries can achieve optimal performance, reliability, and efficiency in their operations.
Post time: Jun-10-2023
