Specification Standards :
Manufactured according to ASTM B466, ASTM B467, ASME SB466, and ASME SB467 international copper nickel piping standards.
Specification Standards :
Manufactured according to ASTM B466, ASTM B467, ASME SB466, and ASME SB467 international copper nickel piping standards.
Material Grade :
Available in Copper Nickel 70/30 (UNS C71500) alloy grade for marine and offshore engineering applications.
Pipe & Tube Forms :
Supplied in seamless pipes, welded pipes, seamless tubes, welded tubes, condenser tubes, and heat exchanger tubes.
Size Range :
Available in multiple nominal sizes suitable for seawater handling and industrial fluid transportation systems.
When industrial operations demand exceptional seawater corrosion resistance, long service life, and reliable mechanical performance, choosing the right piping material becomes critical. As a trusted Copper Nickel 70/30 Pipes Supplier, we provide high-performance piping and tubing solutions engineered for marine, offshore, power generation, and desalination industries where conventional materials often struggle to deliver long-term durability.
Manufactured from a copper-nickel alloy containing approximately 70% copper and 30% nickel, these pipes and tubes offer outstanding resistance to seawater corrosion, biofouling, erosion, and cavitation damage. Their unique metallurgical composition makes them one of the most preferred materials for aggressive marine environments and critical cooling water systems.
Why Choose Copper Nickel 70/30 Pipes and Tubes?
Copper Nickel 70/30 alloys are specifically developed for applications involving continuous exposure to seawater and harsh coastal environments. Compared to standard piping materials, they provide superior corrosion protection, excellent heat transfer efficiency, and enhanced mechanical strength.
Key advantages include:
These characteristics make Copper Nickel 70/30 one of the best material choices for marine and industrial fluid transportation systems.
Available Product Range
As an experienced Copper Nickel 70/30 Tubes Manufacturer and supplier, we offer:
All products are manufactured according to international standards and undergo strict quality inspections to ensure dimensional accuracy and reliable field performance.
The Ideal Choice for Seawater Systems
What is the best pipe material for seawater systems?
Copper Nickel 70/30 is widely considered one of the most effective materials for seawater handling applications due to its natural resistance to marine corrosion and biological fouling.
Unlike conventional alloys, Copper Nickel 70/30 develops a protective surface film that minimizes corrosion while maintaining excellent flow efficiency. This makes it highly suitable for:
Exceptional Heat Transfer and Thermal Performance
One of the major advantages of Copper Nickel 70/30 is its excellent thermal conductivity and heat transfer efficiency.
These properties make the alloy particularly valuable for:
Its ability to transfer heat efficiently contributes to improved system performance and energy efficiency.
Resistance to Erosion and Biofouling
Can Copper Nickel 70/30 resist biofouling?
Yes. Copper Nickel 70/30 possesses natural anti-fouling characteristics that help reduce marine organism growth on internal pipe surfaces.
In addition, its outstanding cavitation resistance and erosion resistance allow it to perform effectively in high-velocity seawater systems where many materials experience premature wear.
This combination of durability and corrosion resistance significantly extends service life while reducing maintenance costs.
Industries Served
Copper Nickel 70/30 pipes and tubes are extensively used across multiple industries, including:
Offshore Engineering
Ideal for offshore platforms, subsea piping, and marine infrastructure exposed to aggressive seawater conditions.
Shipbuilding Industry
Trusted for seawater piping systems, ballast lines, and onboard cooling networks.
Desalination Plants
Provides dependable long-term performance in saline water processing facilities.
Industrial Cooling Systems
Used as Copper Nickel 70/30 Cooling Water Pipes for efficient thermal management and corrosion protection.
How to Choose Copper Nickel 70/30 Pipes and Tubes
Selecting the right Copper Nickel 70/30 piping solution depends on:
Working with an experienced Copper Nickel 70/30 Pipe Distributor helps ensure the correct material specification for long-term operational success.
As a leading Copper Nickel 70/30 Pipes Supplier, we provide premium-quality pipes and tubes engineered for demanding marine, offshore, and industrial applications. Combining exceptional corrosion resistance, heat transfer efficiency, pressure handling capability, and long-term reliability, Copper Nickel 70/30 remains one of the most trusted alloy solutions for seawater and cooling water systems worldwide.
| STANDARD | UNS | WNR. |
|---|---|---|
| Copper Nickel 70/30 | C71500 | 2.0882 |
Copper Nickel 70/30 Seamless Pipes
Premium seamless Cu-Ni pipes engineered for offshore platforms, seawater pipelines, and marine systems requiring superior corrosion and pressure resistance.
Copper Nickel 70/30 Welded Pipes
Durable welded pipes designed for shipbuilding, desalination plants, and industrial cooling water systems exposed to aggressive seawater conditions.
Copper Nickel 70/30 ERW Pipes
Precision ERW pipes offering excellent biofouling resistance, thermal conductivity, and long-term performance in marine applications.
Copper Nickel 70/30 Seamless Tubes
High-performance seamless tubes developed for condensers, heat exchangers, and seawater handling systems requiring reliable heat transfer efficiency.
Copper Nickel 70/30 Welded Tubes
Corrosion-resistant welded tubes suitable for offshore engineering, power generation, and coastal industrial processing facilities.
Copper Nickel 70/30 ERW Tubes
Engineered ERW tubes providing exceptional erosion resistance and durability in high-velocity seawater and cooling circuit applications.
Specification Standards :
Manufactured according to ASTM B466, ASTM B467, ASME SB466, and ASME SB467 international copper nickel piping standards.
Material Grade :
Available in Copper Nickel 70/30 (UNS C71500) alloy grade for marine and offshore engineering applications.
Pipe & Tube Forms :
Supplied in seamless pipes, welded pipes, seamless tubes, welded tubes, condenser tubes, and heat exchanger tubes.
Size Range :
Available in multiple nominal sizes suitable for seawater handling and industrial fluid transportation systems.
Wall Thickness Availability :
Offered in SCH 10 through SCH XXS thicknesses for pressure-sensitive industrial operations.
Outer Diameter Range :
Manufactured in customized diameters to support marine, offshore, and desalination plant requirements.
Length Options :
Supplied in random, double random, straight lengths, and customer-specified cut lengths.
Surface Finish :
Available in annealed, pickled, polished, bright finished, and industrial mill finish conditions.
Seawater Corrosion Resistance :
Provides exceptional resistance against seawater corrosion, biofouling, and marine atmospheric conditions.
Erosion & Cavitation Resistance :
Engineered to withstand high-velocity seawater flow, erosion, and cavitation-related damage.
Thermal Conductivity Performance :
Offers excellent heat transfer efficiency for condensers, heat exchangers, and cooling systems.
Mechanical Strength Properties :
Maintains reliable strength, durability, and pressure-handling capability in demanding marine environments.
Industrial Application Areas :
Widely used in shipbuilding, offshore platforms, desalination plants, power stations, and marine piping systems.
Inspection & Testing Standards :
Supplied with PMI testing, hydrostatic testing, eddy current inspection, and mill test certificates for quality assurance.
Chemical Composition of Copper Nickel 70/30 Pipes & Tubes
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Cu-Ni 70-30 | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
Mechanical Properties of Cu-Ni 70/30 Pipes and Tubing
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 372-517 MPa | 54000-75000 psi |
| Tensile strength, yield (depending on temper) | 88.0-483 MPa | 12800-70100 psi |
| Elongation at break (in 381 mm) | 45.0% | 45.0% |
| Charpy impact | 107 J | 78.9 ft-lb |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Shear modulus | 57.0 GPa | 8270 ksi |
| Poisson's ratio | 0.34 | 0.34 |
| Elastic modulus | 150 GPa | 21800 ksi |
Physical Properties of Cupro Nickel 70/30 Pipes & Tubes
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.94 g/cm3 | 0.323 lb/in3 |
| Melting point | 2140°F | 1171°C |
Our Copper Nickel 70/30 Pipes and Tubes are used in a wide range of applications and various industries. Below are a few of them:
Application Industries
Aerospace Industry
Food Processing Industry
Pulp & Paper Indusry
Energy Industry
Pharmaceuticals Industry
Power Plant Industry
Chemical Industry
Oil and Gas Industry
Get clear answers to common queries about our steel products, services, and delivery processes.
Copper Nickel 70/30 pipes offer exceptional marine durability, corrosion resistance, and long service life in seawater and coastal environments.
They are ideal for offshore, marine, cooling water, condenser, desalination, and power generation applications requiring superior seawater resistance.
These tubes are commonly installed in ships, offshore platforms, condensers, heat exchangers, desalination plants, and industrial cooling systems.
Its unique copper-nickel composition provides outstanding resistance to seawater corrosion, biofouling, erosion, and cavitation, ensuring reliable performance and reduced maintenance in demanding marine environments.
Our Location
Flat no 5, Swapna HSG Soc
Ltd., Charkop, Kandivali West,
Mumbai, Maharashtra, India.
400067
