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Views: 2 Author: Rachel Publish Time: 2024-08-07 Origin: Site
Inconel 600 is a nickel-chromium alloy used for applications that require corrosion and high temperature resistance. This nickel alloy was designed for service temperatures from cryogenic to elevated temperatures in the range of 2000° F. It is non-magnetic, has excellent mechanical properties, and presents the desirable combination of high strength and good weldability under a wide range of temperatures. The high nickel content in Inconel 600 enables it to retain considerable resistance under reducing conditions, makes it resistant to corrosion by a number of organic and inorganic compounds, gives it excellent resistance to chloride-ion stress-corrosion cracking and also provides excellent resistance to alkaline solutions.
Inconel 600 is a nickel-base alloy with excellent carburization, and good oxidation resistance at elevated temperatures. The alloy has long been used in the heat treating industry for many of the same applications as RA330. Inconel 600 has useful resistance to dry Cl2 and HCl gases at moderately elevated temperatures. Alloy 600 is not suggested for use at red heat when sulfur is present due to elevated nickel quantities. Inconel 600 is subject to stress corrosion cracking in hot, concentrated caustic alkalies. To avoid stress corrosion cracking, the Inconel 600 fabrication should be fully stress relieved prior to use. A minimum treatment of 1650°F for 1 hour is suggested, but 1800-1850°F for 1 hour preferred.
Inconel 600 is face-centered cubic lattice structure. Inconel 600 have corrosion resistance to many kinds of corrosive media. The material produced by JN Alloy group are of high quality.
Chromium content made it with better corrosion resistance than Nickel 99.2 (alloy200) and Nickel 99.2 ( alloy201,low carbon) in the oxidize environment. Meantime, high Nickel content make this alloy with good corrosion resistance in the reduction condition and alkaline solution, and also effective avoid chlorine-iron stress corrosion cracking. Inconel 600 have good corrosion resistance in the acid, acetic acid, formic acid, stearic acid and other organic acid, with medium corrosion resistance in the inorganic acid. The alloy with excellent corrosion resistance in the first and the second recycling use of the high purity water in the nuclear reactor. Especially excellent corrosion resistance to dry chlorine and chlorine hydride applied up to 650 ℃. When nder the high temperature, annealing and state solution alloy have good antioxidant off and high-intensity in the air, 600 can resist the ammonia, nitriding and carburizing atmosphere, but at the turn of the changes in redox conditions, it will be corrosion by parts of oxidation media.
Chemical Composition of Inconel 600 (UNS N06600), % | |
Nickel | ≥72.0 |
Chromium | 14.0-17.0 |
Iron | 6.00-10.00 |
Carbon | ≤0.15 |
Manganese | ≤1.00 |
Sulfur | ≤0.015 |
Silicon | ≤0.50 |
Copper | ≤0.50 |
Inconel 600 has good corrosion resistance to many media. In feed water systems it is practically free of corrosion. It resists flowing sea water, but will corrode in stagnant sea water. The alloy has fair resistance to sulphuric acid at room temperature, but should not be used in this application at elevated temperatures. Resistance to hydrochloric acid is similar to sulphuric acid. The alloy has excellent resistance to phosphoric acid at room temperature in all concentrations, but is rapidly attacked at elevated temperature. Inconel 600 is practically free from chloride ion stress corrosion cracking. Please consult Austral Wright Metals for advice on your specific application.
Inconel 600 has good resistance to oxidation at high temperature. It out performs all other alloys for resistance to nitridation in cracked ammonia. It should not be used in sulphur containing atmospheres at high temperature, particularly if the conditions are reducing. It resists dry chlorine and hydrochloric acid gas at moderate temperatures.
Inconel 600 can be hot forged. The surface should be clean before heating. Solution annealing after forging is normal. Inconel 600 is readily cold formed by standard processes and equipment. Work hardening in cold forming may require intermediate anneal.
Inconel 600 is reasonably easy to machine (class “C” alloy). Heavy machines, sharp tools, slow speeds and deep cuts to remove the work hardened layer are needed.
Inconel 600 is readily welded by the SMAW (manual), GMAW (MIG), GTAW (TIG) and SAW processes. Preheat, post heat and post weld heat treatment are not needed. Contamination of the weld pool should be avoided. Inconel welding electrode 182 or Inconel filler metal 82 are normally used as welding consumables. Argon is used as the shielding gas.
Inconel 600 is widely used in the aerospace industry for manufacturing components such as turbine blades, combustor liners, and exhaust systems. Its high temperature and corrosion resistance, coupled with excellent mechanical properties, make it an ideal choice for demanding aerospace applications.
In chemical processing plants, where exposure to corrosive chemicals is common, Inconel 600 is employed to fabricate equipment like heat exchangers, reaction vessels, and piping systems. Its resistance to corrosion and oxidation ensures the longevity and reliability of such equipment.
Inconel 600 is extensively used in nuclear power plants due to its ability to withstand high levels of radiation and its corrosion resistance in nuclear environments. It is utilized in reactor components, fuel element spacers, and steam generator tubing, among other applications.
Heat treatment furnaces require materials that can withstand extreme temperatures without losing their mechanical properties. Inconel 600 is commonly used for manufacturing furnace fixtures, heating elements, and baskets due to its excellent heat resistance and longevity in such harsh environments.
