C70600 Copper-Nickel Tube – 90/10 CuNi Alloy for Marine & Industrial Applications
We are a professional manufacturer of C70600 Copper Nickel Tube CuNi 90/10 Tube in China.
What is C70600 ?
UNS C70600 is a 90% copper and 10% nickel alloy with tiny traces of other elements such as iron and manganese.
C70600 copper-nickel is a copper-nickel alloy formulated for primary forming into wrought products. CW352H is the EN numeric designation for this material. C70600 is the UNS number. Additionally, the EN chemical designation is CuNi10Fe1Mn. The British Standard (BS) designation is CN102. And the common industry name is Cupronickel 10.
C70600 Copper-Nickel Tubes (CuNi 90/10) are high-strength, corrosion-resistant tubing solutions composed of 90% copper and 10% nickel, with small amounts of iron and manganese for enhanced seawater corrosion resistance, biofouling resistance, and durability. These tubes are widely used in marine, offshore, power generation, and industrial applications due to their excellent mechanical properties and longevity in harsh environments.
Standard Specifications for C70600 Copper-Nickel Tubes:
Material Standard: ASTM B466, ASTM B111, ASME SB466, SB111
Size Range: 6 mm to 300 mm outer diameter (Custom sizes available)
Wall Thickness: 0.5 mm to 10 mm
Length: Random, Cut-to-Length, Coil Form
Pressure Rating: Available in Sch 5, Sch 10, Sch 40, Sch 80
Manufacturing Processes: Seamless & Welded
Composition of C70600 Copper-Nickel Tubes
| C70600 chemical composition | DIN 86019 | EEMUA 144 | BS 2871 | ASTM B466 | JIS H 3300 | MIL-T-16420K |
| Ni% | 9.0-11.0 | 10.0-11.0 | 10.0-11.0 | 9.0-11.0 | 9.0-11.0 | 9.0-11.0 |
| Fe% | 1.5-1.8 | 1.5-2.0 | 1.0-2.0 | 1.0-1.8 | 1.0-1.8 | 1.0-1.8 |
| Mn% | 0.5-1.0 | 0.5-1.0 | 0.5-1.0 | Max.1.0 | 0.2-1.0 | Max1.0 |
| C% | Max.0.05 | Max.0.05 | Max.0.05 | Max.0.05 | Max.0.05 | |
| Pb% | Max.0.03 | Max.0.01 | Max.0.01 | Max.0.02 | Max.0.05 | Max.0.02 |
| S% | Max.0.015 | Max.0.02 | Max.0.05 | Max.0.02 | Max.0.02 | |
| P% | Max.0.02 | Max.0.02 | Max.0.02 | Max.0.02 | ||
| Zn% | Max.0.15 | Max.0.20 | Max.0.50 | Max.0.50 | Max.0.05 | |
| Zr% | Max.0.03 | |||||
| Others | Max.0.30 | Max.0.30 | Max.0.30 | |||
| Cu% | Balance | Balance | Balance | Balance | Cu+Ni+Fe+MnMin.99.5 | Min.86.5 |
Equivalent grade of C70600
| Grade | USA | U.K | Germany | Japan |
| China BG | ASTM B 111 | BS | DIN | JIS H |
| BFe10-1-1 | C70600 | CN102 | CuNi10Fe1Mn | C7060 |
Applications of C70600 Copper-Nickel Tubes:
Marine & Shipbuilding – Seawater cooling, condensers, heat exchangers, ballast systems
Oil & Gas Industry – Offshore platforms, desalination plants, piping systems’
Power Generation – Steam turbines, nuclear plants, cooling systems
Aerospace & Defense – Hydraulic tubing, high-performance applications
Chemical Processing – Acid-resistant piping, corrosion-resistant equipment
Benefits of C70600 Copper-Nickel Tubes:
Superior Corrosion & Biofouling Resistance – Ideal for marine environments
High Strength & Durability – Withstands mechanical stress & high-pressure systems
Excellent Thermal Conductivity – Efficient heat exchange in cooling applications
Good Weldability & Fabrication – Compatible with standard welding techniques
Long Service Life – Reduces maintenance costs and enhances system reliability
