Alloy 450 (UNS N45000) is noted for its fatigue resistance and its thermal properties, making it suitable for a host of applications related to seawater, such as condensers, plates, tubes, and pipes. Its corrosion-resistant nature makes it a great choice for marine environments, and it can be used in salt water, brine, and caustic solutions without presenting any significant deterioration.
1. Product Specifications & AvailabilityAlloy 450 (UNS N45000) is available in forms optimized for heat exchanger and marine piping systems. Forms: Tube, Pipe, Plate, Bar, and custom-fabricated components. Certifications: Material certification and comprehensive technical support available. Support: Stock lists and application guidance provided upon request.
Chemical Composition| Element | Content (%) |
|---|
| Nickel | 29.0 - 33.0 | | Copper | Balance | | Iron | 0.4 - 1.0 | | Manganese | ≤ 1.0 | | Sulfur | ≤ 0.020 | | Zinc | ≤ 1.0 | | Lead | ≤ 0.05 | | Phosphorus | ≤ 0.020 |
Physical & Mechanical Properties| Property | Metric | Imperial |
|---|
| Density | 8.91 g/cm³ | 0.322 lb/in³ | | Melting Range | 1170-1240°C | 2140-2260°F | | Thermal Conductivity | 29.4 W/m·K | 204 BTU·in/hr·ft²·°F | | Electrical Resistivity | 412 µΩ·m | 16.2 µΩ·in | | Tensile Strength (min) | 385 MPa | 56 ksi | | Yield Strength (min) | 165 MPa | 24 ksi | | Elongation (min) | 46% | 46% |
2. Operating Conditions & Selection CriteriaAlloy 450 (UNS N45000) is selected specifically for marine heat transfer applications where fatigue life and corrosion resistance are critical. Fatigue Resistance: Exceptional resistance to cyclic loading and vibrational stresses. Suitable for condensers and other equipment subject to continuous flow-induced vibration. Corrosion Resistance: Excellent performance in saltwater, brine, and caustic solutions. Resists biofouling attachment in marine environments. Minimal deterioration in continuous immersion service. Thermal Properties: High thermal conductivity enables efficient heat transfer in condensers, evaporators, and heat exchangers. Temperature Range: Maintains mechanical integrity across typical marine service temperatures. Suitable for both low and high temperature operation within marine and chemical processing limits.
3. Fabrication Guidelines & Material ComparisonAlloy 450 (UNS N45000) offers distinct advantages in weldability compared to other copper-nickel alloys. Fabrication Guidelines: Weldability: Superior weldability is a key feature. Compatible with gas tungsten arc (GTAW/TIG), gas metal arc (GMAW/MIG), and submerged-arc welding (SAW) processes using Monel filler metal 67 . Forming: Can be fabricated into tubes, plates, and custom components using standard methods. Machining: Suitable for conventional machining operations. Contact technical support for optimized parameters. Heat Treatment: Not typically hardened by heat treatment. Annealing performed as needed for stress relief.
Material Comparison: vs. Monel® 400: Monel® 400 (63Ni-30Cu) is a general-purpose alloy for pumps, valves, and shafts requiring high mechanical strength. Monel® 450 (30Ni-70Cu) is selected specifically for heat exchanger tubes and condenser plates where thermal conductivity and fatigue resistance are the primary requirements. vs. Stainless Steels: Provides superior resistance to seawater corrosion and biofouling without the risk of chloride stress corrosion cracking.
Primary Applications: Seawater condensers and condenser plates Distiller tubes and evaporator tubes Heat exchanger tubes Saltwater piping systems Marine structural components requiring fatigue resistance
Contact & SupportFor detailed specifications, availability, and application guidance for Monel® 450, contact ZYTC Alloy. Our technical team provides material certification and engineering support for marine and heat transfer applications. Contact Us:Email:daisy@zytcsteel.com WhatsApp/WeChat: +86 17335753350 |
