Product Overview –Monel K500 Tubes
Monel K500 Tubes, are premium age-hardenable nickel-copper alloy tubes that combine the outstanding corrosion resistance of Monel 400 with significantly higher mechanical strength and hardness. Designated as UNS N05500, the alloy is strengthened by controlled additions of aluminum and titanium followed by age-hardening heat treatment, making it ideal for applications requiring both excellent corrosion resistance and superior mechanical performance.
Monel K500 offers exceptional resistance to seawater, marine atmospheres, alkalis, hydrofluoric acid, and chloride-containing environments. It also provides excellent resistance to stress corrosion cracking, erosion corrosion, cavitation, and wear, while maintaining high strength over a wide temperature range. These characteristics make it a preferred alloy for demanding offshore, marine, and chemical processing applications.
These tubes are extensively used in offshore oil & gas platforms, marine engineering, desalination plants, chemical processing facilities, power generation plants, heat exchangers, pump and valve components, seawater cooling systems, defense applications, and aerospace engineering.
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As a trusted supplier, exporter, and stockist of Monel K500 Tubes,we serve customers across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, India, Africa, Europe, and Southeast Asia, delivering quality products, competitive pricing, and reliable logistics for industrial and infrastructure projects.
Material Specification -Monel K500 Tubes
Technical Specifications –Monel K500 Tubes
| Outside Diameter: | 6.35 mm to 114.3 mm |
| Wall Thickness: | 0.5 mm to 12 mm |
| Length: | Up to 18 Meters & Custom Length |
| Pipe Ends: | Plain End, Annealed Ends |
| Product Type | Seamless & Welded Pipes |
| Surface Finish: | Bright Annealed, Pickled, Polished |
| ASTM Seamless : | ASTM B163 / ASTM B165 |
| ASTM Welded : | ASTM B725 / ASTM B730 |
| Alloy Family: | Age-Hardenable Nickel-Copper Alloy |
| Available Sizes: | ¼", ⅜", ½", ⅝", ¾", 1", 1¼", 1½", 2", 2½", 3", 4", 5", 6" |
Custom lengths and project-specific sizes are available on request.
Third Party Inspection Available
Material is commonly supplied to customer specifications and applicable ASTM / ASME requirements depending on the product form and project requirements. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition –Monel K500 Tubes
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Iron (Fe) | ≤2.00 |
| Carbon (C) | ≤0.25 |
| Nickel (Ni) | 63.0 Min |
| Copper (Cu) | 27.0–33.0 |
| Manganese (Mn) | ≤1.50 |
| Silicon (Si) | ≤0.50 |
| Aluminum (Al) | 2.30–3.15 |
| Titanium (Ti) | 0.35–0.85 |
| Sulphur (S) | ≤0.01 |
Note: The controlled additions of aluminum and titanium enable precipitation hardening, giving Monel K500 significantly higher strength, hardness, fatigue resistance, and wear resistance than Monel 400 while maintaining excellent corrosion resistance.
Mechanical Properties of Monel K500 Tubes
| Property | Value (Min) |
|---|---|
| Yield Strength (0.2%) | ≥690 MPa |
| Tensile Strength | ≥965 MPa |
| Elongation | ≥20% |
| Melting Point | 1288–1343°C |
| Density | 8.44 g/cm³ |
| Hardness | 27–35 HRC |
| Modulus of Elasticity | 179 GPa |
Note :Monel K500 provides exceptional mechanical strength, excellent fatigue performance, and outstanding resistance to seawater corrosion, making it suitable for highly loaded offshore and marine applications where long service life is essential.
Why Choose Monel K500 Tubes?
Applications of Monel K500 Tubes
Where Monel K500 Tubes are used:
- 🔸Offshore Platforms
- 🔸Subsea Production Systems
- 🔸Marine Heat Exchangers
- 🔸Condenser Tubes
- 🔸Seawater Cooling Systems
- 🔸Pressure Vessels
- 🔸Desalination Plants
- 🔸Pressure Vessels
- 🔸Industrial Cooling Systems
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Key Advantages of Monel K500 Tubes
Best Alternatives to Monel K500 Tubes
- This process provides:
- 🔸 Excellent seawater corrosion resistance
- 🔸 Outstanding hydrofluoric acid resistance
- 🔸 More economical than Monel K500
Best for: Marine piping, desalination plants, and chemical processing systems where ultra-high strength is not required.
- 🔸 Exceptional resistance to oxidizing and reducing chemicals
- 🔸 Superior pitting and crevice corrosion resistance
- 🔸 Excellent performance in aggressive chemical environments
Best for: Chemical processing plants, pollution control equipment, pharmaceutical manufacturing, and mixed acid service.
- 🔸 High mechanical strength
- 🔸 Excellent oxidation and corrosion resistance
- 🔸 Superior fatigue performance
Best for: Aerospace, marine engineering, offshore platforms, and power generation systems.