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Inconel 600 is a nickel-chromium alloy that exhibits excellent resistance to oxidation at elevated temperatures and to carburizing and chloride-containing environments. Inconel 600 is a nickel-chromium alloy that is suitable for use at temperatures ranging from cryogenic to 2000 degrees Fahrenheit (1093 deg C). Due to the alloy's high nickel content, it retains significant resistance under reducing conditions and is resistant to corrosion by a variety of organic and inorganic compounds. Due to the nickel content, it is extremely resistant to chloride-ion stress-corrosion cracking and also to alkaline solutions. Due to the alloy's high chromium content, it is resistant to sulphur compounds and a variety of oxidising environments. Due to the alloy's chromium content, it outperforms commercially pure nickel under oxidising conditions.

The resistance of 600 to strong oxidising solutions such as concentrated hot nitric acid is low. Alloy 600 is resistant to attack by the majority of neutral and alkaline salt solutions, making it suitable for use in some caustic environments. Steam and steam-air-carbon dioxide mixtures are resistant to the alloy.

Alloy 600 is nonmagnetic, exhibits superior mechanical properties, has a high strength-to-workability ratio, and welds readily. Inconel 600 exhibits the typical cold forming characteristics of stainless steels containing chromium and nickel.

Corrosion applications include the production of titanium dioxide (via the chloride route), perchloroethylene synthesis, vinyl chloride monomer (VCM), and magnesium chloride. Alloy 600 is used in a wide variety of applications, including chemical and food processing, heat treatment, phenol condensers, soap manufacturing, and vessels for vegetable and fatty acid acids.

Chemical property :

- Ni C Mn Cr S Si Fe
Max .15 1.0 17.0 .015 .5 10.0
Min 72.0 14.0 6.0

Mechanical Property :

Ultimate Tensile Yield Strength (0.2% OS) Elong. in 2 in. or 50mm or 4D, min., % R/A Hardness
Cold Worked/As worked
Min 110 KSi 85 KSi 10
Min 760 MPa 585 KSi
Hot Worked/As Worked
Min 90 KSi 40 KSi 25
Min 620 MPa 275 MPa


  • Thermocouple sheaths.
  • Ethylene dichloride (EDC) cracking tubes.
  • Conversion of uranium dioxide to tetrafluoride in contact with hydrofluoric acid.
  • Production of caustic alkalis particularly in the presence of sulfur compounds.
  • Reactor vessels and heat exchanger tubing used in the production of vinyl chloride.
  • Process equipment used in the production of chlorinated and fluorinated hydrocarbons.
  • In nuclear reactors uses are for such components as control rod inlet stub tubes, reactor vessel components and seals, steam dryers and d separators in boiling water reactors.
  • In pressurized water reactors it is used for control rod guide tubes and steam generator baffle plates etc.
  • Furnace retort seals, fans and fixtures.
  • Roller hearths and radiant tubes, in carbon nitriding processes especially.
Work Process

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