15/04/2026
Monel K500 (UNS N05500): High Strength Meets Exceptional Corrosion Resistance
Monel K500 is a precipitation-hardenable nickel-copper alloy that combines the outstanding corrosion resistance of Monel 400 with significantly enhanced strength and hardness.
With a typical composition of Ni ≥63%, Cu 27–33%, Al 2.3–3.15%, and Ti 0.35–0.85%, it achieves:
✔ Tensile strength: up to ~1300 MPa
✔ Yield strength: up to ~1000 MPa
✔ Excellent ductility (~20% elongation)
💡 Key Advantages:
• Maintains mechanical properties from cryogenic temperatures up to ~480°C
• Excellent resistance to seawater, hydrofluoric acid, and alkaline environments
• Good performance in controlled sulfuric acid conditions
• Resistant to pitting, crevice corrosion, and chloride-induced stress corrosion cracking
• Low magnetic permeability & high fatigue strength
• Can meet NACE MR0175 requirements with proper heat treatment
⚙️ Typical Applications:
• Marine & offshore: propeller shafts, pump shafts, fasteners
• Oil & gas: downhole tools, valve components, springs (sour service)
• Chemical processing: heat exchangers, scraper blades
• Aerospace & precision components
• Wear-resistant parts such as sleeves and mixers
Monel K500 is an ideal choice for demanding environments where both strength and corrosion resistance are critical.
