Inconel 690 Nickel Alloy





The Inconel 690 nickel alloy has outstanding resistance to many corrosive aqueous media and high temperature environments. High chromium content gives alloy 690 superior corrosion resistance to oxidizing acids (nitric acid in particular) and salts and to sulfidation at high temperatures. The high chromium alloy also has excellent resistance to intergranular corrosion and intergranular stress corrosion cracking.



In addition to corrosion resistance, it features high strength and perfect fabrication properties. Such properties make this high performance nickel alloy suitable for heat transfer pipes of vapor generator in pressurized water reactor nuclear power plant.





Specification of Inconel 690 Nickel Alloy






UNS




W. Nr






N06690




2.4642






Chemical Compositions






Composition




Ni




Cr




Fe




C




Mn




Si




Cu




S






Content(%)




Min.




58.0




27.0




7.0




0.05


























Max.









31.0




11.0




0.5




0.5




0.5




0.015









Mechanical Properties (Minimum value at 20)






Tensile  Strength  (b/MPa)




Yield  Strength (p0.2/MPa)




Elongation  (5/%)






580




260




30






Product Forms and Standards






Bar




Forging




Sheet/Strip




Pipe






ASTM B166




ASTM B564




ASTM B168




ASTM B163


ASTM B829










http://www.xhalloy.com