Monel K-500
2.4375Age-hardenable version of Monel 400. Al and Ti additions enable precipitation hardening to double the strength of Monel 400. Retains excellent seawater and HF acid resistance. Used for pump shafts, impellers, doctor blades, oil well tools, and marine fasteners.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | ASTM | USA | UNS N05500 | N05500 | REF |
| 🇪🇺 | EN | Europe | NiCu30Al | 2.4375 | 100% |
Sources: ASTM B865, DIN 17743
Mechanical properties
Compatibility verdict
Monel K-500 and NiCu30Al: 100% composition match
Related materials
Inconel 625
2.4856Nickel-chromium-molybdenum-niobium superalloy. Solid-solution strengthened (no precipitation hardening required). Outstanding corrosion resistance from cryogenic to 982°C. Used for jet engine exhaust systems, marine components, chemical processing, flare stacks, and nuclear applications.
Hastelloy C-276
2.4819The most versatile corrosion-resistant alloy available. Ni-Mo-Cr-W composition resists both oxidizing and reducing environments. Outstanding resistance to pitting, stress corrosion cracking, and wet chlorine gas. Used in chemical processing, flue gas desulfurization, pulp & paper, and waste treatment.
Monel 400
2.4360Nickel-copper alloy with excellent resistance to seawater, hydrofluoric acid, and alkaline environments. One of the few alloys resistant to HF acid at all concentrations. Used for marine engineering, chemical processing, oil refinery piping, and valve/pump components.
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