Inconel600 alloy has the following characteristics:
1. It has good resistance to reduction, oxidation and nitridation corrosion of media
2. It has good stress corrosion cracking resistance at room temperature and high temperature
3. Has a good resistance to dry chlorine gas and hydrogen chloride gas corrosion
4. Good mechanical properties at zero, room and high temperatures
5. It has good creep fracture strength and is recommended for use in working environment above 700℃.
Microstructure of Inconel600:
600 is a face-centered cubic lattice structure.
Corrosion resistance of Inconel600: The 600 alloy demonstrates excellent corrosion resistance against various corrosive media. Its chromium composition provides superior corrosion resistance under oxidizing conditions compared to nickel 99.2 (Alloy 200) and nickel 99.2 (Alloy 201, low carbon). The higher chromium content also enhances the alloy’s performance in reducing conditions and alkaline solutions, effectively preventing chlorine-iron stress corrosion cracking. The 600 alloy exhibits exceptional corrosion resistance in organic acids such as acetic acid, formic acid, and stearic acid, while maintaining moderate resistance in inorganic acids. It demonstrates outstanding corrosion resistance in high-purity water used in both primary and secondary reactor cycles. A notable strength of the 600 alloy is its resistance to dry chlorine gas and hydrogen chloride corrosion, with application temperatures reaching up to 650℃. Under high-temperature conditions, both annealed and solution-treated alloys exhibit excellent oxidation resistance and high strength in air exposure. The alloy can also resist ammonia and nitriding and carburizing atmosphere, but in the alternating changes of REDOX conditions, the alloy will be partially corroded by oxidizing media (such as green death liquid).
Inconel600 applications include:
1. Thermocouple bushings in corrosive atmospheres
2. Production of vinyl chloride monomer: resistant to chlorine gas, hydrogen chloride, oxidation and carbonization corrosion
3. Conversion of uranium oxide to hexafluoride: resistance to hydrogen fluoride corrosion
4. Production and use of corrosive alkali metals, especially in environments using sulfides
5. Titanium dioxide by chlorine gas method
6. Production of organic or inorganic chlorides and fluorides: resistance to chlorine and fluorine corrosion 7. Nuclear reactors
8. Neck bottles and components in heat treatment furnaces, especially in carbonized and nitrided atmospheres
9. Alloy 600 is recommended for use in catalytic regenerators in petrochemical production above 700℃ to obtain a longer service life.
The density of the alloy is ρ=8.47g/cm³.
