What are some application cases of INCONEL 690 in nuclear power and chemical industries?

INCONEL 690 finds numerous application cases in both nuclear power and chemical industries, where its exceptional corrosion resistance, high-temperature stability, and mechanical properties are highly valued. Here are some notable application cases:

Nuclear Power Industry:

1. Steam Generators: INCONEL 690 is extensively used in the fabrication of steam generator tubes for pressurized water reactors (PWRs) and boiling water reactors (BWRs) in nuclear power plants. These tubes are subjected to high temperatures, steam, and corrosive environments, making the alloy's resistance to oxidation and stress corrosion cracking critical for long-term performance and safety.

2. Primary Loop Components: INCONEL 690 is employed in various primary loop components, including reactor vessel internals, control rod drive mechanisms, and primary coolant piping. Its corrosion resistance to primary coolant chemistry, which may contain boric acid and dissolved oxygen, ensures the integrity and longevity of critical reactor components.

3. Fuel Handling Systems: INCONEL 690 is utilized in fuel handling systems, such as fuel racks, storage containers, and transfer mechanisms, where exposure to high-temperature water and radiation is prevalent. Its resistance to corrosion and irradiation-induced degradation makes it suitable for ensuring the safety and reliability of nuclear fuel handling operations.

Chemical Industries:
4. Chemical Processing Equipment: INCONEL 690 is employed in chemical processing equipment subjected to corrosive chemicals, high temperatures, and aggressive environments. It is used in reactors, heat exchangers, vessels, and piping systems handling acids, alkalis, and other corrosive fluids in chemical manufacturing plants.

1. Sulfuric Acid Production: INCONEL 690 is preferred for components involved in sulfuric acid production processes, including acid concentrators, absorbers, and towers. Its resistance to sulfuric acid corrosion and oxidation at elevated temperatures ensures the reliability and efficiency of sulfuric acid production facilities.

2. Petrochemical Processing: In petrochemical refineries and processing plants, INCONEL 690 finds application in equipment such as furnaces, heaters, reformers, and catalytic crackers. Its ability to withstand high temperatures, aggressive gases, and corrosive environments makes it well-suited for use in refining and processing hydrocarbons.

3. Desalination Plants: INCONEL 690 is utilized in desalination plants for the fabrication of heat exchangers, evaporators, and piping systems involved in seawater desalination processes. Its resistance to chloride-induced corrosion and high-temperature stability ensure the longevity and performance of desalination equipment.

These application cases highlight the versatility and reliability of INCONEL 690 in critical applications within nuclear power and chemical industries. Its ability to withstand harsh operating conditions, including high temperatures, corrosive environments, and radiation exposure, makes it an indispensable material for ensuring the safety, efficiency, and longevity of industrial processes and infrastructure

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