Incoloy is a nickel-chromium-iron alloy, which is a nickel-iron-chromium iron-nickel-based corrosion-resistant alloy designed for anti-oxidation and carbonization when the temperature rises. This alloy is used in high-temperature water vapor, including steam-air-CO2 In mixed gas, it has good corrosion resistance. In some high-temperature and high-pressure water media, its stress corrosion resistance is significantly better than 18-8 stainless steel and Inconel600; it also has good corrosion resistance in H2+H2S media. In the alkaline medium containing NaOH, its stress corrosion resistance is better than high-nickel alloys such as Inconel600.