Suzhou Xunshi New Material Co., Ltd
Suzhou Xunshi New Material Co., Ltd
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Inconel 690/UNS N06690/W.Nr.2.4642 U shape seamless tube for heat exchanger
INCONEL 690 (UNS N06690/W. Nr. 2.4642) is a high-chromium nickel alloy having excellent resistance to many corrosive aqueous media and hightemperature atmospheres. In addition to its corrosion resistance, alloy 690 has high strength, good metallurgical stability, and favorable fabrication characteristics.
The properties of INCONEL 690 are useful for various applications involving nitric or nitric/hydrofluoric acid solutions. Examples are tail-gas reheaters used in nitric acid production and heating coils and tanks for nitric/hydrofluoric solutions used in
pickling of stainless steels and reprocessing of nuclear fuels.
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, tubesheets, and hardware in nuclear power generation.