Cupro Nickel Fin Tubes Manufacturer and Supplier in India
Cupro Nickel Fin Tubes are seamless copper nickel tubes with an integral external fin profile designed to improve heat transfer in condensers, heat exchangers and cooling equipment. Cupro Nickel Fin Tubes are ideal for marine applications, including the marine environment because of the corrosion resistant copper-nickel alloy combined with the finned structure for efficient heat exchangers and condensers. Amardeep Steel Centre supplies 90/10 Cupro Nickel Fin Tubes (UNS C70600) and 70/30 Cupro Nickel Fin Tubes (UNS C71500) for marine, offshore, desalination and industrial cooling applications. The tubes are manufactured from Cupro Nickel base tubing and finned to the required specification, with dimensional checks and specified pressure testing available for quality verification. Mill Test Certificates are supplied with every consignment for material traceability.
Technical Data
Specifications of Cupro Nickel Finned Tubes
Parameter | Specification |
|---|---|
Product | Cupro Nickel Fin Tubes |
Material of Construction | Cupro Nickel |
90/10 Grade | UNS C70600 |
70/30 Grade | UNS C71500 |
Base Tube Standard | ASTM B111 / ASME SB111 |
Finning Standard | ASTM B359/B359M |
Outside Diameter | 9.52 mm to 25.40 mm |
Wall Thickness | 1.21 mm to 2.77 mm |
Fin Density | 19 FPI and 26 FPI standard |
Alternate FPI | Available on request |
Fin Types | Integral low fin L type, LL type, KL type, embedded G type |
Tube Condition | As finned / specified temper |
Tube Length | As per drawing or purchase specification |
Testing | Pneumatic or hydrostatic testing as specified |
Stress Relieving | Available on request |
Documentation | Mill Test Certificate with every consignment |
Cupro Nickel Fin Tubes Chemical Composition
The two principal grades supplied for this product are 90/10 Cupro Nickel C70600 and 70/30 Cupro Nickel C71500. Their chemistry differs mainly in nickel content, which influences their strength and resistance to demanding seawater service.
Element | 90/10 Cupro Nickel UNS C70600 (%) | 70/30 Cupro Nickel UNS C71500 (%) |
|---|---|---|
Copper (Cu) | Remainder | Remainder |
Nickel (Ni) | 9.0–11.0 | 29.0–33.0 |
Iron (Fe) | 1.0–1.8 | 0.40–1.0 |
Manganese (Mn) | 1.0 max | 1.0 max |
Zinc (Zn) | 1.0 max | 1.0 max |
Lead (Pb) | 0.05 max | 0.05 max |
Carbon (C) | 0.05 max | 0.05 max |
Mechanical Properties of Cupro Nickel Fin Tubes
Mechanical properties vary with alloy, product form and temper. The following values are reference minimum properties for annealed copper nickel condenser tube material used as the basis for the finned tube construction.
Grade | Condition | Tensile Strength, Min. | Yield Strength, Min. | Elongation, Min. |
|---|---|---|---|---|
90/10 Cupro Nickel C70600 | Annealed O61 | 275 MPa | 105 MPa | 30% |
70/30 Cupro Nickel C71500 | Annealed O61 | 360 MPa | 125 MPa | 30% |
Cupro Nickel Finned Tubes Dimension Chart
The following range covers the standard dimensional envelope specified for this product. Exact combinations of outside diameter, wall thickness and fin density should be confirmed before production.
Tube Outside Diameter | Wall Thickness | Fin Density |
|---|---|---|
9.52–12.70 mm | 1.21–1.63 mm | 19 or 26 FPI |
15.88–19.05 mm | 1.63–2.11 mm | 19 or 26 FPI |
22.20–25.40 mm | 2.11–2.77 mm | 19 or 26 FPI |
Applications of Cupro Nickel Fin Tubes
- Marine Condensers: Used in shipboard condensers and cooling equipment exposed to seawater.
- Offshore Systems: Suitable for seawater cooling circuits and offshore heat exchangers.
- Desalination Plants: Used in heat transfer equipment handling seawater and desalination process streams.
- Power Generation: Applied in condensers and auxiliary cooling systems using seawater or aggressive cooling water.
- Seawater Cooling: Suitable for cooling systems requiring resistance to corrosion and flow related attack.
- Petrochemical Plants: Used in selected process heat exchangers where copper nickel alloys are compatible with the service medium.
Send your Cupro Nickel grade, OD, wall thickness and fin density for a same day quote.
Frequently Asked Questions
What is the difference between 90/10 and 70/30 Cupro Nickel Fin Tubes?
90/10 C70600 contains 9–11% nickel, while 70/30 C71500 contains 29–33%. 70/30 generally offers higher strength and is used for more demanding seawater service.
Why is Cupro Nickel used for marine condenser fin tubes?
Cupro Nickel provides good resistance to seawater corrosion and impingement, making it suitable for marine condensers, seawater cooling systems and offshore heat exchangers.
What is the maximum operating temperature for Cupro Nickel Fin Tubes?
Selected constructions can operate up to approximately 300°C. The permissible temperature depends on alloy, wall thickness, pressure, design code and service conditions.
Which fin types are available on Cupro Nickel base tubes?
Available options include integral low fin L type, LL type, KL type and embedded G type, subject to tube dimensions and the required heat exchanger design.
What testing does Amardeep perform before dispatch?
Testing can include chemical analysis, dimensional inspection, hydrostatic or pneumatic testing, and other specified examinations according to the purchase specification.
Does Amardeep provide Mill Test Certificates with Cupro Nickel Fin Tubes?
Yes. A Mill Test Certificate is supplied with every consignment, subject to the ordered material specification and documentation requirements.
Related Cupro Nickel Products
For projects requiring a complete copper nickel material package, explore:
- Copper Nickel 90/10 Pipes and Tubes
- Copper Nickel 70/30 Pipe and Tube
- Copper Nickel Fittings .
- Finned Tubes
- Copper Finned Tubes
Request a Quote for Cupro Nickel Fin Tubes
Send your Cupro Nickel grade, tube OD, wall thickness, tube length, fin type, FPI, fin dimensions, operating temperature, working pressure and service medium to Amardeep Steel Centre.
