Dr. Dmitri Kopeliovich

Nickel-Copper Alloys (trade mark Monel) are nickel base alloys containing 29-33% of copper (Cu) as the major alloying element. Copper and nickel form mono-phase solid solution.

Nickel-Copper Alloys, containing 3% of aluminum (Al) and 0.6% of titanium (Ti) as additional alloying elements (Monel K-500), are heat-treatable and may be strengthened by precipitation hardening.

Nickel-Copper Alloys have high corrosion resistance in acids and alkalis, high mechanical strength combined with good ductility and low coefficient of thermal expansion. Machinability of the alloys is poor.

Nickel-Copper Alloys (Monel) are used for manufacturing chemical processing equipment, valve stems, springs, pumps, shafts, fittings, heat exchangers, screw machine products, marine equipment.

(Materials Data)

• Nickel-copper alloy (Monel 400)
• Nickel-copper alloy (Monel 405)
• Nickel-copper alloy (Monel K-500)

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• Classification of nickel alloys
• Commercially pure nickel alloys
• Non-heat-treatable nickel-chromium-iron alloys
• Heat-treatable nickel-chromium-iron alloys

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