What are the most widely used Inconel grades and their core positioning?

Inconel 600 is a solid-solution base grade with balanced oxidation and alkali corrosion resistance for general high-temperature static parts. Inconel 625 relies on molybdenum and niobium to deliver superior strength and chloride corrosion resistance for marine and chemical anti-corrosion hardware. Inconel 718 is precipitation-hardenable with outstanding creep strength, dominating aero-engine turbine disks and rotating hot-section parts. Inconel X-750 features excellent fatigue resistance for high-temperature springs and fasteners. Each grade matches unique heat treatment procedures to fit exclusive high-temperature service scenarios.