What temperature range can Monel Alloy serve stably?

Solid-solution Monel 400 can operate continuously under 540°C without obvious strength attenuation and oxidation failure. Precipitation-hardened Monel K-500 keeps stable mechanical properties for long-term service below 480°C; long-time exposure above this temperature causes aging precipitates to coarsen and lose strength. At cryogenic low temperatures, all Monel grades maintain outstanding impact toughness without cold brittleness, fitting low-temperature marine pipeline and liquefied medium transportation equipment, while ultra-high temperature environments over 600°C are not applicable.