ARK Stainless Inc. is a trusted manufacturer and supplier of premium-quality Copper Nickel Pipes & Tubes, engineered for superior performance in corrosive marine and industrial environments. These pipes and tubes offer excellent resistance to seawater, making them ideal for critical applications such as shipbuilding, heat exchangers, condensers, offshore oil platforms, and power generation systems.
We supply Copper Nickel Pipes & Tubes in top-grade materials like 70/30 (C71500) and 90/10 (C70600), both known for their outstanding corrosion resistance, mechanical strength, and thermal stability. These grades are especially effective in minimizing biofouling and ensuring prolonged service life in saltwater and brackish water conditions.
Our Copper Nickel Pipes & Tubes are available in various forms including Seamless, Welded, ERW, and Fabricated options. They are manufactured as per international specifications such as ASTM B466, B467 / ASME SB466, SB467, and comply with dimensional standards like ASTM, ASME, and other customer-specific requirements. Each product is rigorously tested to ensure top-notch quality, durability, and precise dimensional accuracy.
ARK Stainless Inc. guarantees performance, reliability, and compliance with global standards, making our Copper Nickel Pipes & Tubes a preferred choice for engineers and procurement teams worldwide. Whether it's for high-pressure systems, thermal transfer lines, or seawater piping, our solutions are built to last even in the most challenging conditions.
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Copper Nickel 70/30 (C71500) | Balance | 1.0 max | 0.05 max | 29.0 – 33.0 | 0.4 – 1.0 | 1.0 max |
| Copper Nickel 90/10 (C70600) | Balance | 1.0 max | 0.05 max | 9.0 – 11.0 | 1.8 max | 1.0 max |
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| Copper Nickel 70/30 (C71500) | 140 min | 380 – 520 | 30 min | 80 – 100 |
| Copper Nickel 90/10 (C70600) | 110 min | 310 – 450 | 25 min | 75 – 95 |
Copper Nickel 70/30 Pipes & Tubes are widely utilized across diverse industries such as marine engineering, offshore oil and gas, desalination, power generation, chemical processing, and HVAC systems.
Copper Nickel 70/30 Pipes & Tubes are manufactured using advanced fabrication techniques that ensure excellent weldability and dimensional accuracy to meet stringent application demands. Made from premium raw materials, these pipes deliver outstanding resistance to seawater corrosion, biofouling, and erosion, making them highly reliable in harsh and corrosive environments.
The alloy’s composition, including iron and manganese, provides enhanced mechanical strength and superior resistance to general corrosion, enabling long-term performance in critical systems. These pipes are especially favored in seawater cooling systems, offshore platforms, and desalination plants where durability and corrosion resistance are paramount.
Strict adherence to international standards and thorough quality testing guarantees that every pipe and tube meets performance criteria and regulatory requirements. Our company provides comprehensive certification and documentation to ensure complete transparency and confidence in the products supplied.
| STANDARD | UNS | WNR. |
|---|---|---|
| Copper Nickel 70/30 | C71500 | 2.0882 |
Copper Nickel 90/10 Pipes & Tubes are available in various forms including seamless, welded, ERW, and fabricated types to suit diverse industrial applications. These pipes and tubes are widely used in marine engineering, offshore platforms, desalination plants, power generation, and chemical processing industries where high corrosion resistance is critical.
Copper Nickel 90/10 Pipes & Tubes are favored for their excellent resistance to seawater corrosion, biofouling, and stress corrosion cracking, making them ideal for long-term service in harsh and aggressive environments. They are commonly employed in seawater cooling systems, heat exchangers, and shipbuilding due to their durability and reliable mechanical properties.
To ensure the highest quality and performance, these pipes and tubes undergo stringent testing such as hydrostatic pressure tests, dimensional inspections, chemical analysis, and non-destructive testing. Each product is supplied with comprehensive documentation including mill test certificates, PMI reports, and radiographic inspection reports to guarantee compliance with international standards and customer specifications.
| STANDARD | UNS | WNR. |
|---|---|---|
| Copper Nickel 90/10 | C70600 | 2.0872 |
