Seamless Monel K500 Tube is a premium, high-performance material chosen when an application demands the corrosion resistance of Monel combined with the strength of steel. Its seamless construction ensures the highest level of integrity for critical, high-pressure, and safety-conscious applications in marine, oil & gas, and chemical industries.
Monel K500 is a precipitation-hardenable nickel-copper alloy, meaning it can be heat-treated to achieve significantly higher strength than its more common counterpart, Monel 400 (UNS N04400). It combines the excellent corrosion resistance of the Monel family with the strength and hardness of age-hardening.
Features
Superior Corrosion Resistance: Exceptionally resistant to seawater, steam, and various acidic solutions, including hydrofluoric and sulfuric acids at moderate concentrations. It outperforms many stainless steels in chloride-rich environments, making it a top choice for marine and offshore applications.
High Strength & Durability: Maintains excellent mechanical properties across a wide temperature range, from sub-zero conditions to 400°C. It offers high tensile strength and fatigue resistance, ensuring long service life in dynamic loading scenarios.
Thermal & Electrical Conductivity: Combines good thermal conductivity with moderate electrical resistance, suitable for heat exchanger applications where efficient heat transfer is required without compromising corrosion resistance.
Ease of Fabrication: Despite its high alloy content, MONEL N05500 can be readily formed, welded, and machined using standard techniques, reducing manufacturing complexities and costs.
Monel Alloy K500 Tube Chemical Composition
Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
Monel K500 | ≤0.25 | ≤1.50 | ≤0.50 | ≤0.010 | 27.00 – 33.00 | 0.50 – 2.00 | ≥63.00 | – |
Alloy K500 Tube Mechanical Properties
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
Monel K500 | 8.44g\cm3 | 1350 °C (2460 °F) | Psi – 160000 , MPa – 1100 | Psi – 115000 , MPa – 790 | 20% |
Application
Marine Engineering: Used in seawater intake systems, ship hull piping, and offshore platforms due to its resistance to biofouling and chloride-induced corrosion.
Chemical Processing: Handles aggressive chemicals in reactors, distillation columns, and pipelines, particularly in hydrofluoric acid production and organic synthesis.
Aerospace & Defense: Employed in fuel systems and hydraulic lines for aircraft and military equipment, where exposure to salt spray and extreme temperatures is common.
Power Generation: Suitable for condenser tubes and boiler feedwater systems in coastal power plants, minimizing maintenance caused by corrosion.
