For industrial automation applications, common high-temperature alloys are Hastelloy, nitronic, Incoloy, Haynes and several alloy types of Inconel metals. Names given to these industrial alloys have been granted by metal companies and technology-based corporations.
Superalloys are found in dozens of applications - whether it be in engines, turbines, or nozzles implementing these strong structures is both desirable and necessary.
Hastelloy can resist oxidizing temperatures over 1200 °C and carries great malleable qualities. The superalloy can function for almost 20,000 hours at nearly 900 °C; it is frequently used in gas turbine combustion cans and ducting.
Nitronic alloys are better known for resistance to wear rather than high temperatures. In industrial automation they are usually found in seating, trimming, valve stems, pump shafts, pins, and fastening systems.
Incoloy alloys are some of the best high-temperature metals to overcome oxidation and carburization. They are used in heat exchangers and in tube components.
Haynes alloys can perform up to nearly 1000 °C and inhibit oxidation, as well as carburization, just over 1000 °C. As both functional under high temperatures and an anti-galling metal, Haynes are best applied in combustion chambers, afterburners, springs, valves, and gas turbine engines.
Inconel metals contain various levels of nickel. Inconel alloy 600 contains a large dose of nickel, can function at approximately 1800 °C, and be used for furnace muffles, electronics, tubing, and heating.
Inconel alloy 601 has higher levels of chromium in its makeup, which generates better fighting against oxidation, and can resist corrosion or oxidation at temperatures above 1200 °C.
Alloy 601 applications are very similar to alloy 600. Inconel alloy 625 can operate up to 980 °C while withstanding oxidation and corrosion. 625 is found in marine equipment, afterburners, and fuel nozzles.
Lastly, Inconel alloy 718, has optimal strength from about -250 °C to 700 °C, as well as powerfully avoids oxidation up to around 1000°C. 718 is an application in rocket motors, thrust reversers, jet engines, pump parts, and nuclear fuel element spacers.