Copper Nickel Tubes
ASTM B111, ASTM B543 & ASTM B552 certified Cupro Nickel 70/30 tubes in seamless, welded and fabricated forms. Available in multiple sizes and custom dimensions. Worldwide export available.
Siddhgiri Overseas is a trusted Copper Nickel Tubes Supplier & Exporter, offering premium-quality Cupro Nickel 70/30 Tubes (UNS C71500) manufactured to internationally recognised ASTM B111, ASTM B543, ASTM B552, ASME SB111, SB543, and SB552 standards. Designed for demanding marine and industrial environments, our Copper Nickel Tubes provide exceptional resistance to seawater corrosion, erosion, marine biofouling, and stress corrosion cracking while delivering excellent heat transfer efficiency and long service life.
Our Copper Nickel Tubes are available in seamless, ERW, welded, and fabricated forms with multiple sizes, wall thicknesses, and custom lengths to suit heat exchangers, condensers, offshore platforms, desalination plants, shipbuilding, and power generation projects. Manufactured from premium-quality raw materials, every tube undergoes strict quality inspections to ensure excellent dimensional accuracy, mechanical strength, and reliable long-term performance.
Siddhgiri Overseas supplies Copper Nickel Tubes across India, UAE (Dubai), Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, South Africa, and numerous international markets with competitive pricing, certified materials, and dependable worldwide logistics.
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Copper Nickel Tubes are widely recognised as one of the best tubing solutions for seawater and corrosive industrial environments. Their high nickel content combined with copper provides outstanding resistance to corrosion, erosion, and marine growth, making them the preferred choice for offshore and marine engineering applications.
Unlike conventional tubing materials, Copper Nickel Tubes naturally resist biofouling and scaling, allowing cooling systems and condensers to operate efficiently with minimal maintenance. Their excellent thermal conductivity also improves heat transfer performance, making them ideal for heat exchangers and refrigeration equipment.
The alloy's superior weldability, fabrication characteristics, and mechanical strength enable easy installation while ensuring reliable performance under high-pressure and high-temperature operating conditions.
Siddhgiri Overseas supplies Copper Nickel Tubes in various sizes and configurations to meet international industrial specifications and project requirements.
| Specification | Details |
|---|---|
| Standards | ASTM B111, ASTM B543, ASTM B552 / ASME SB111, SB543, SB552 |
| Dimensions | ASTM, ASME & API |
| Grade | Cupro Nickel 70/30 |
| UNS | C71500 |
| Werkstoff No. | 2.0882 |
| Tube Size | 1/2" to 6" OD & NB |
| Manufacturing Type | Seamless, ERW, Welded & Fabricated |
| Forms | Round Tubes, Hydraulic Tubes |
| Length | Single Random, Double Random & Cut Length |
| Ends | Plain End, Bevelled End, Threaded |
| Speciality | Large Diameter Tubes |
Siddhgiri Overseas supplies premium-grade Cupro Nickel Tubes suitable for marine, offshore, industrial, and heat transfer applications.
Cupro Nickel 70/30 contains approximately 70% copper and 30% nickel with controlled additions of iron and manganese to improve corrosion resistance and mechanical performance. Compared with lower nickel alloys, this grade offers significantly higher resistance to seawater erosion and performs exceptionally well in high-velocity seawater systems.
Its excellent resistance to marine biofouling, cavitation, and chloride attack makes it an ideal choice for condensers, heat exchangers, desalination plants, offshore platforms, naval vessels, and seawater cooling systems operating under demanding service conditions.
Our Copper Nickel Tubes are manufactured using carefully controlled alloy chemistry to ensure maximum corrosion resistance, structural stability, and long service life.
| Element | Composition |
|---|---|
| Copper (Cu) | 65.0% Min |
| Nickel (Ni) | 29–33% |
| Iron (Fe) | 0.4–1.0% |
| Manganese (Mn) | 1.0% Max |
| Zinc (Zn) | 1.0% Max |
| Lead (Pb) | 0.05% Max |
This balanced composition enables Copper Nickel Tubes to withstand aggressive seawater environments while maintaining excellent mechanical strength and fabrication characteristics.
Copper Nickel Tubes supplied by Siddhgiri Overseas deliver dependable mechanical performance for critical industrial applications.
| Property | Value |
|---|---|
| Density | 0.323 lb/in³ |
| Melting Point | 2260°F |
| Yield Strength | 20,000 PSI |
| Tensile Strength | 50,000 PSI |
| Elongation | 30% |
These properties provide excellent resistance to mechanical loading, vibration, thermal cycling, and continuous exposure to corrosive environments.
Our Copper Nickel Tubes comply with internationally recognised material designations used across global engineering projects.
| Grade | UNS | Werkstoff No. |
|---|---|---|
| Cupro Nickel 70/30 | C71500 | 2.0882 |
These equivalent grades simplify material specification and procurement for international EPC projects, shipyards, offshore facilities, and industrial process plants.
Copper Nickel Tubes are widely used in industries where exceptional corrosion resistance, heat transfer efficiency, and long service life are essential. Our Copper Nickel Tubes are commonly used in:
Siddhgiri Overseas supplies premium-quality Copper Nickel Tubes that comply with international ASTM and ASME standards while meeting the demanding performance expectations of marine, offshore, and industrial customers worldwide. Every tube is manufactured using carefully selected raw materials and undergoes comprehensive inspections for dimensional accuracy, chemical composition, mechanical properties, and surface quality before dispatch.
All Copper Nickel Tubes comply with ASTM B111, ASTM B543, ASTM B552 and ASME standards with complete material traceability and Mill Test Certificates.
Our extensive inventory allows us to supply standard and custom tube sizes with short lead times for urgent project requirements.
We provide custom cutting, Mill Test Certificates (MTC), complete material traceability, export-grade packaging, and technical support.
Siddhgiri Overseas exports Copper Nickel Tubes to India, UAE (Dubai), Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, South Africa, and numerous international destinations.
Our experienced team provides prompt quotations, technical guidance, and material selection assistance to help select the most suitable tubing solution.
Our Copper Nickel Tubes are trusted by customers across numerous industries, including:
Looking for a reliable Copper Nickel Tubes Supplier & Exporter? Siddhgiri Overseas supplies premium-quality Cupro Nickel 70/30 Tubes manufactured to ASTM and ASME standards for marine, offshore, heat exchanger, condenser, and industrial applications worldwide. Simply share your required tube size, wall thickness, quantity, length, and delivery destination with our sales team. We will provide a competitive quotation along with complete material certification, secure export packaging, and prompt worldwide shipping to ensure your project remains on schedule.