Copper Nickel Pipes
ASTM B151 certified Copper Nickel 90/10 & 70/30 pipes with exceptional seawater corrosion resistance. Available in seamless and welded forms. Worldwide export available.
Siddhgiri Overseas is a trusted Copper Nickel Pipes Supplier & Exporter, delivering premium-quality Copper Nickel 90/10 (UNS C70600) and Copper Nickel 70/30 (UNS C71500) pipes for demanding marine, offshore, industrial, and heat transfer applications. Manufactured to internationally recognised ASTM B151 standards, our copper nickel pipes offer outstanding resistance to seawater corrosion, biofouling, erosion, and stress corrosion cracking, ensuring dependable performance in harsh operating environments.
Our inventory includes seamless and welded copper nickel pipes in various sizes, wall thicknesses, and custom lengths to meet the requirements of shipbuilding companies, offshore platforms, desalination plants, power stations, heat exchanger manufacturers, EPC contractors, and process industries. Every product is manufactured using high-quality raw materials and undergoes stringent quality inspections to ensure dimensional accuracy, excellent mechanical strength, and long service life. Siddhgiri Overseas supplies Copper Nickel Pipes across India, UAE (Dubai), Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, South Africa, and numerous international markets, providing competitive pricing, certified materials, and reliable worldwide delivery.
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Copper Nickel pipes are widely recognised for their exceptional resistance to seawater corrosion and are among the most reliable piping materials for marine and offshore applications. The combination of copper and nickel creates a durable alloy capable of performing continuously in aggressive environments where conventional piping materials often fail.
Siddhgiri Overseas supplies Copper Nickel Pipes in multiple grades, sizes, and configurations to meet international industrial requirements.
| Specification | Details |
|---|---|
| Product | Copper Nickel Pipes |
| Grades | Copper Nickel 90/10, Copper Nickel 70/30 |
| UNS | C70600, C71500 |
| Werkstoff No. | 2.0872, 2.0882 |
| Manufacturing Type | Seamless & Welded |
| Pipe Forms | Round Pipes, Straight Length Pipes, Custom Cut Pipes |
| Supply Condition | Annealed, Drawn, As Required |
| Standards | ASTM B151 |
Siddhgiri Overseas maintains ready stock of the two most widely used Copper Nickel pipe grades for industrial, marine, and offshore applications.
Copper Nickel 90/10 contains approximately 90% copper and 10% nickel with controlled additions of iron and manganese to improve corrosion resistance and mechanical strength. This grade offers excellent resistance to seawater corrosion and biofouling, making it suitable for condensers, seawater piping, shipbuilding, cooling systems, and marine heat exchangers. It is widely used in commercial ships, offshore installations, desalination plants, and coastal infrastructure where reliable long-term performance is essential.
Copper Nickel 70/30 contains approximately 70% copper and 30% nickel, providing higher strength and superior resistance to erosion in high-velocity seawater applications compared to the 90/10 alloy. This grade is commonly selected for naval vessels, offshore platforms, power plants, seawater cooling systems, desalination facilities, and industrial heat exchangers operating under demanding service conditions.
Our Copper Nickel Pipes are manufactured with carefully controlled chemical composition to ensure excellent corrosion resistance, mechanical strength, and long-term durability.
| Grade | Copper (Cu) | Nickel (Ni) | Iron (Fe) | Manganese (Mn) | Lead (Pb) | Zinc (Zn) |
|---|---|---|---|---|---|---|
| Cu-Ni 90/10 | 88.6% Min | 9–11% | 1.8% Max | 1.0% Max | 0.05% Max | 1.0% Max |
| Cu-Ni 70/30 | 65.0% Min | 29–33% | 0.4–1.0% | 1.0% Max | 0.05% Max | 1.0% Max |
The balanced alloy composition ensures outstanding resistance to seawater corrosion, chloride attack, erosion, and marine biofouling while maintaining excellent fabrication properties.
Copper Nickel pipes supplied by Siddhgiri Overseas provide consistent mechanical performance for demanding marine and industrial environments.
| Property | Value |
|---|---|
| Density | 0.323 lb/in³ |
| Melting Point | 2260°F |
| Tensile Strength | 50,000 PSI |
| Yield Strength (0.2% Offset) | 90–1000 PSI |
| Elongation | 30% |
These mechanical characteristics allow Copper Nickel pipes to maintain structural integrity under continuous exposure to seawater, pressure, and elevated temperatures.
Copper Nickel pipes are extensively used in industries requiring excellent seawater corrosion resistance, reliable mechanical performance, and long service life.
Essential component in shipbuilding industry and commercial maritime applications.
Specified for military ships, naval vessels, and offshore oil and gas installations.
Ideal for seawater intake and process piping in desalination and water treatment facilities.
Preferred material for thermal management and cooling systems in power plants and industrial facilities.
Used in thermal power plants, nuclear facilities, refineries, and offshore production systems.
Specified for chemical processing plants and food processing industry applications.
Used in cooling systems and process piping for paper and pulp manufacturing.
Applicable in custom fabrication projects and general industrial engineering applications.
Siddhgiri Overseas is committed to supplying high-quality Copper Nickel Pipes that meet international quality requirements and perform reliably in the most demanding operating environments. Every pipe undergoes comprehensive quality inspections to verify chemical composition, dimensional accuracy, mechanical properties, and overall product integrity before dispatch. We maintain extensive stock of Copper Nickel 90/10 and Copper Nickel 70/30 pipes in standard and custom sizes, enabling us to fulfil urgent project requirements with shorter lead times. Our value-added services include custom cutting, material traceability, Mill Test Certificates (MTC), export-grade packaging, and technical assistance to help customers select the right alloy for their application.
All Copper Nickel Pipes comply with ASTM B151 standards with complete material traceability and Mill Test Certificates for quality assurance.
We maintain comprehensive inventory of Cu-Ni 90/10 and 70/30 grades in various sizes to support urgent marine and offshore projects.
We provide custom cutting, seamless welding, and project-specific processing solutions for exact requirements.
Products are securely packed for international shipment. We supply customers across India, UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, South Africa, and numerous global markets.
Our experienced team provides prompt quotations, technical guidance, and responsive support to help select the right Copper Nickel grade for marine and industrial applications.
Our global distribution network allows us to supply Copper Nickel Pipes to customers across India, UAE (Dubai), Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, South Africa, and many other international destinations, serving marine contractors, EPC companies, shipbuilders, offshore projects, and industrial manufacturers worldwide.