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Monel

Monel 400: The most common Monel alloy, known for its high strength and resistance to corrosion in various environments. Monel K-500: A precipitation-hardened version of Monel 400 with added aluminum and titanium, which increases strength and hardness. Primary Elements: Monel alloys primarily consist of nickel (about 65-70%) and copper (20-29%). Additional Elements: They may also contain small amounts of iron, manganese, carbon, and silicon.

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Corrosion Resistance: Monel alloys are highly resistant to corrosion by many agents, including seawater, acids, and alkalies. Strength: They maintain high strength over a wide range of temperatures. Ductility: Monel alloys are easily fabricated and welded, maintaining their mechanical properties even after fabrication.

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Longevity: The combination of strength and corrosion resistance leads to long service life in harsh environments. Versatility: Suitable for a wide range of industrial applications. Reliability: Consistent performance under extreme conditions, such as high pressures and temperatures. Monel is a valuable material for industries requiring high-performance, corrosion-resistant materials. Its unique properties make it ideal for demanding applications, despite its higher cost and machining challenges.

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Property Details
Grades Monel 400, Monel 401, Monel 404, Monel K500
Material Type Nickel-Copper Alloy
Standards ASTM B127 (Plates & Sheets), ASTM B164 (Bars & Rods), ASTM B165 (Pipes & Tubes), ASTM B366 (Fittings)
Chemical Composition Nickel (63-70%), Copper (28-34%), with small amounts of Iron, Manganese, Silicon, Carbon
Corrosion Resistance Excellent resistance to seawater, acids (particularly hydrofluoric and sulfuric), alkalis, and stress corrosion cracking
Mechanical Properties Tensile Strength: 485 - 965 MPa, Yield Strength: 170 - 690 MPa, High strength, especially in Monel K500 (age-hardened)
Applications Marine, Oil & Gas, Chemical Processing, Aerospace, Heat Exchangers, Valves, Fasteners
Heat Resistance Good heat resistance, maintaining strength up to 540°C; suitable for high-temperature steam and seawater environments
Surface Finishes Cold Rolled, Hot Rolled, Pickled, Polished
Weldability Excellent weldability with proper techniques, suitable for both Monel 400 and K500
Available Forms Plates, Sheets, Bars, Pipes, Tubes, Fittings, Wires
Advantages Exceptional corrosion resistance in marine environments, high strength, good weldability, resistance to both acidic and alkaline conditions


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