Copper Nickel 70/30 Pipes & Tubes, offered by Neonox Overseas, are one of the most reliable and versatile piping solutions widely used across marine, power generation, offshore, chemical, and desalination industries. The alloy consists of 70% copper and 30% nickel, along with small additions of manganese and iron, which significantly enhance its mechanical strength and resistance to corrosion, particularly in seawater environments. This excellent combination of properties makes Cu-Ni 70/30 Pipes & Tubes ideal for use in highly demanding and aggressive conditions where both durability and performance are critical.
One of the most remarkable features of Cu-Ni 70/30 Pipes is their outstanding resistance to biofouling and seawater corrosion. The presence of nickel provides superior protection against localized corrosion, stress cracking, and erosion, while copper enhances antibacterial and antifouling properties, reducing marine growth on surfaces. For this reason, these pipes and tubes are extensively used in shipbuilding, condenser systems, desalination plants, offshore drilling platforms, power stations, and heat exchangers.
In addition to corrosion resistance, Cu-Ni 70/30 Pipes & Tubes exhibit excellent mechanical properties, including high tensile strength, good ductility, and toughness over a wide range of temperatures. They also maintain stability under high pressures and thermal stresses, making them suitable for high-temperature as well as cryogenic service. Their non-magnetic nature further adds value in specialized engineering applications.
At Neonox Overseas, Cu-Ni 70/30 Pipes & Tubes are available in a variety of types, forms, and specifications to cater to global industrial demands. They are manufactured in Seamless, Welded, ERW, and Fabricated forms, ensuring versatility in application. We provide them in round, square, rectangular, hydraulic, and polished tube forms, with customization options for OD (Outer Diameter), wall thickness, and length to meet specific project requirements.
Our Cu-Ni 70/30 products strictly adhere to international standards such as ASTM B111, ASTM B466, ASTM B467, and ASME SB111/SB466/SB467, ensuring quality, precision, and reliability. Each product is thoroughly tested for mechanical, chemical, and metallurgical properties before dispatch.
Whether you are looking for heat exchanger tubes, condenser tubes, marine engineering pipes, offshore platform tubing, or power plant piping systems, Cu-Ni 70/30 Pipes & Tubes from Neonox Overseas deliver long-lasting performance, resistance to scaling, and cost-effectiveness. With our commitment to timely delivery and strict quality control, we have earned the trust of clients across Asia, Europe, Middle East, Africa, and the Americas.
If you require robust, corrosion-resistant, and high-quality Copper Nickel 70/30 Pipes & Tubes, Neonox Overseas is your trusted global supplier.
| Category | Details |
|---|---|
| Material | Copper Nickel 70/30 (Cu-Ni 70% Cu, 30% Ni, with small amounts of Mn & Fe) |
| UNS Number | C71500 |
| EN Number | 2.0882 |
| Standards | ASTM B111, ASTM B466, ASTM B467, ASME SB111, SB466, SB467 |
| Types | Seamless Pipes & Tubes, Welded Pipes & Tubes, ERW Pipes, Fabricated Pipes & Tubes |
| Forms | Round, Square, Rectangular, Hydraulic, Polished Tubes |
| Outer Diameter (OD) | 6 mm to 219 mm (custom sizes available) |
| Wall Thickness | 0.5 mm to 20 mm |
| Length | Single Random, Double Random & Custom Cut Lengths (up to 12 meters) |
| Density | 8.9 g/cm³ |
| Melting Point | 1170–1240 °C |
| Tensile Strength | ≥ 275 MPa |
| Yield Strength | ≥ 105 MPa |
| Elongation | ≥ 30% |
| Hardness | 80 HB (approx.) |
| Key Properties | Excellent seawater corrosion resistance, resistance to biofouling, good weldability, high toughness |
| Applications | Marine piping systems, Shipbuilding, Condensers, Heat Exchangers, Offshore Oil & Gas, Desalination Plants, Power Generation |
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