Monel 400 / UNS N04400 / 2.4360 / NiCu30Fe

MONEL 400 / 2.4360 / НМЖМц28-2,5-1,5: Properties, Applications, and Features

✅ General Technical Characteristics

MONEL 400 (2.4360, НМЖМц28-2,5-1,5) is a nickel-copper alloy with high corrosion resistance, particularly in seawater, acidic, and alkaline environments. It has excellent strength, good ductility, and high thermal stability. This alloy is used in conditions of high humidity, aggressive environments, and extreme temperatures.

Main Characteristics:

• High corrosion resistance in seawater, acids, and alkalis.
• Excellent mechanical strength and wear resistance.
• Good thermal stability, maintaining strength at high temperatures.
• High ductility and impact toughness.
• Good weldability and machinability.

🔬 Chemical Composition of MONEL 400 / 2.4360 / НМЖМц28-2,5-1,5 (%):

• Nickel (Ni): 63.0 – 70.0
• Copper (Cu): 28.0 – 34.0
• Iron (Fe): ≤ 2.5
• Manganese (Mn): ≤ 2.0
• Silicon (Si): ≤ 0.5
• Carbon (C): ≤ 0.3
• Sulfur (S): ≤ 0.024

💡 The high nickel and copper content makes the alloy resistant to chemically aggressive environments and provides excellent thermal stability.

🏭 Applications

The MONEL 400 (2.4360, НМЖМц28-2,5-1,5) alloy is widely used in industries requiring high corrosion resistance and strength.

Main Application Areas:

• Marine and shipbuilding industry (propeller shafts, pump components, heat exchangers, valves).
• Chemical and petrochemical industry (reactors, storage tanks, pipelines for aggressive environments).
• Energy sector (heat exchange equipment, boilers, condensers).
• Aviation and aerospace industry (engine components, fuel system components).
• Medical industry (implants, surgical instruments).

📊 Mechanical Properties

• Tensile Strength (Rm): 480 – 620 MPa
• Yield Strength (Rp0.2): ≥ 170 MPa
• Hardness (HB): ≤ 180 HB
• Elongation (A5): ≥ 30 %
• Density: 8.8 g/cm³

⭐ Features

• High corrosion resistance – ideal for use in seawater and chemically aggressive environments.
• Excellent mechanical strength – retains high strength under mechanical loads.
• Thermal stability – resistant to high temperatures and thermal cycling.
• Good weldability – easily joined using arc, gas, and spot welding techniques.
• Durability – has high wear resistance and withstands mechanical loads in extreme conditions.

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