Inconel 690 (UNS N06690/W. Nr. 2.4642) is a high-chromium nickel alloy with excellent resistance to many corrosive aqueous media and high temperature atmospheres
In addition to its corrosion resistance, Inconel 690 has high strength, good metallurgical stability, and favorable fabrication characteristics
Properties:
The alloy's resistance to sulfur-containing gases makes it an attractive material for such applications as coal-gasification units, burners and ducts for processing sulfuric acid, furnaces for petrochemical processing, recuperators, incinerators and glass vitrification equipment for radioactive waste disposal
In various types of high-temperature water, alloy 690 displays low corrosion rates and excellent resistance to stress-corrosion cracking
Thus, alloy 690 is widely used for steam generator tubes, baffles, tube sheets, and hardware in nuclear power generation
Applications:
Duct work
High temperature burners
Furnaces
Petrochemical heaters
Nuclear power
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