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Inconel Alloys

Inconel alloys are a class of nickel-chrome-based super alloys characterized by high corrosion resistance, oxidation resistance, strength at high temperatures, and creep resistance. Inconel, however, is harder to machine and harder to work than other alloys. Different Inconels have varying compositions, but all are predominantly nickel, with chromium as the second element. Inconel 600 is a nickel-chromium alloy designed for use from cryogenic to elevated temperatures in the range of 2000 deg F Inconel 617 is a material with excellent resistance to pitting, crevice, and corrosion cracking, has high-temperature strength and oxidation resistance. The alloy also has excellent resistance to a wide range of corrosive environments Inconel 625 is highly resistant to a wide range of organic and mineral acids. Good high-temperature strength. Inconel 718 is a Gamma Prime strengthened alloy with excellent mechanical properties at elevated temperatures and cryogenic temperatures. Suitable for temperatures up to around 1300 F. Can be readily worked and age-hardened.
Typical Applications

Use for Inconel 600 are thermocouple sheaths, reactor vessels, and heat exchanger tubing, processing equipment, in nuclear reactors in control rod inlet stub tubes, reactor vessel components and seals, steam dryers and separators, and in pressurized water reactors in control rod guide tubes and steam generator baffle plates.

Uses for Inconel 625 are for components exposed to seawater and other high mechanical stresses, Oil and gas production where hydrogen sulfide and elementary sulfur exist at temperatures over 150C, flare stacks on offshore oil platforms, and hydrocarbon processing from tar-sand and oil-shale recovery projects.

Uses for Inconel 718 tend to be in the field of gas turbine components and cryogenic storage tanks. Jet engines, pump bodies and parts, rocket motors and thrust reversers, nuclear fuel element spacers, and hot extrusion tooling. Other popular uses are high-strength bolting and down-hole shafting.

Packaging Options



Inconel Alloys TSCA (SARA Title III) Status: Listed. For further information, please call the E.P.A. Office of Chemical Safety and Pollution Prevention (OCSPP)
at 202-564-2902
Inconel Alloys CAS Number: Varies
Inconel Alloys UN Number: Varies
Inconel Trademark Acknowledgement: Inconel is the registered trademark of the Special Metals Corporation

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