The Cupro Nickel 90/10 tubes are one of the most reliable materials to be used in the seawater service and heat transfer systems in the marine, power and desalination industry. Being the top Cupro Nickel 90/10 Tubes Manufacturers in Bangalore, India , Shubham Metals offers high performance Cupro Nickel 90/10 seamless tubes designed to offer a consistent corrosion resistance, mechanical stability and thermal efficiency in challenging working conditions.
To project engineers, procurement managers, and the EPC contractors, the choice of the tube material is essential in long-term reliability of the plant. UNS C70600 is commonly known as Cupro Nickel 90/10 (UNS C70600) that is a cost-effective alloy that balances the performance, fabrication ease, and durability.
Cupro Nickel 90/10 Tubes Suppliers in Bangalore, India
As a specialized Cupro Nickel 90/10 Tubes Suppliers in Bangalore, India , Shubham Metals provides seamless Cupro Nickel 90/10 tubes suitable for marine, industrial, and power applications.
Supply Capabilities Include
- Normal size of condensers and heat exchangers.
- Individually cut lengths according to drawings.
- Bulk project supply
- Phased delivery scheduling
- Export-grade packaging
- Third party inspection coordination.
The company benefits the EPC contractors, shipyards, desalination plants, and maintenance teams by at least providing them with the same quality of materials and documentation.
What Are Cupro Nickel 90/10 Tubes?
Cupro Nickel 90/10 tubes are alloy based copper tubes that are majorly made up of:
- Approximately 90% Copper
- Approximately 10% Nickel
- Regulated iron additions (usually 1-2%)
The alloy is known as UNS C70600 and produced in compliance with the ASTM B466 and ASTM B467 standards that govern smooth production of pipes and tubes to be used in general engineering activities.
Adding nickel under control is beneficial in terms of strength and corrosion resistance as compared to pure copper and adding iron is beneficial in terms of resistance to erosion and impingement attack in flowing seawater. This well-balanced chemistry is what renders 90/10 alloy exceptionally applicable in the medium-speed marine operation.
Why Engineers Prefer Cupro Nickel 90/10
In determining which materials to use in the seawater system, engineers usually compare between copper alloys, stainless metal and higher levels of nickel. Cupro Nickel 90/10 is unique in the sense that it is available with:
- Superior resistance to seawater corrosion.
- Dependable operation in chloride-contaminated conditions.
- High heat exchanger thermal conductivity.
- Easiness in bending, welding and expanding.
- Less expensive than 70/30 grades.
- Established data of long-term service.
Cupro Nickel 90/10 develops a protective oxide film on its surface which is stable during operation unlike the stainless steels which can experience localized corrosion e.g. pitting or crevice attack when stagnant in chloride environments. This oxide coating increases service life and durability.
Cupro Nickel 90/10 Tubes Dealers in Bangalore, India
Shubham Metals as an established industrial supplier, deals as a trusted Cupro Nickel 90/10 Tubes Dealers in Bangalore, India which have been used by power plants, marine contractors, desalination plant and heat exchanger manufacturer in Bangalore, India . Having ready stock and professional advice, the dealers are important in the provision of continuous supply of materials by the project and maintenance needs.
Key Highlights of Cupro Nickel 90/10 Tube Dealers:
- Ready Stock Availability: Standard condenser and heat exchanger tube sizes are also kept in stock which shortens lead times and accommodates urgent shutdown or replacement requests.
- Qualified Quality Compliance: Tubes are shipped in agreement of ASTM B466 / ASTM B467 standard, mill test certificates, and heat-wise traceability to ascertain the authenticity of the materials.
- Flexible Order Quantities: Dealers stand behind large quantity project procurement, small order quantity maintenance and cut-to-length options based on the customer drawing.
- Technical Assistance: The Buyers are recommended on the correct diameter, wall thickness and supply conditions (annealed or hard drawn) depending on operating pressure and seawater velocity.
- Quick Delivery and Supply Services: Warehousing and delivery systems are very efficient to deliver in time to the domestic industrial sites.
When purchasing through a professional dealer, the buyers are able to enjoy improved availability, lower procurement risk and predictable quality of the material to make moderate seawater velocity applications.
Material Composition and Alloy Characteristics
Alloy chemistry is important in the material selection. Cupro Nickel 90/10 is also composed with a lot of care to suit international standards.
1. Chemical Composition (Typical Range)
- Copper (Cu): Balance (~88.6-91.4%)
- Nickel (Ni): 9-11%
- Iron (Fe): 1.0-1.8%
- Manganese (Mn): Little controlled amount.
Key Characteristics
- Iron enhances the resistance to sea water erosion-corrosion.
- Nickel improves strength and stability of corrosion.
- Copper guarantees good thermal conductivity.
- Alloy remains non-magnetic
This mixture offers sound behaviour in condenser tubes, marine piping and offshore cooling.
Mechanical and Thermal Properties
The cupro Nickel 90/10 tubes are engineered with pressure and temperature changes that occur in industrial systems.
1. Typical Mechanical Properties
- Tensile Strength: 340–410 MPa
- Yield Strength: 120–150 MPa
- Elongation: ≥ 30%
- Density: 8.9 g/cm³
- Melting Range: 1100–1140°C
2. Performance Advantages
- Tube expansion with no cracking to tube sheets.
- Resists vibration and moderate pressure cycles.
- Stable in terms of dimension with changing temperatures.
- Offers excellent fatigue-resistance in condenser use.
3. Thermal Conductivity
The alloy has a good heat transfer performance and is therefore applicable in:
- Surface condensers
- Shell and tube heat exchanger.
- Evaporators
- Auxiliary cooling systems
It has a high thermal conductivity than most grades of stainless steel and this enhances better performance of the system.
Corrosion Resistance in Seawater Environments
The main benefit of Cupro Nickel 90/10 tubes is that they are resistant to corrosion when they are exposed to seawater.
1. How It Performs in Service
- Fights off corrosion of seawater in general.
- Develops a protective oxide coating when in operation.
- Eliminates pitting in correctly designed systems.
- Lessens the marine biofouling.
- Optimal performance in the medium flow velocities.
2. Important Operational Consideration
Cupro Nickel 90 10 is best used when:
- Velocity of flow is maintained within acceptable limits.
- Proper commissioning of systems is done.
- Exposure of stagnant seawater is kept to a minimum.
In high-speed systems where the risk of erosion-corrosion is high, the engineer would consider the 70/30 alloy because it has a higher level of nickel.
Dimensional Range and Supply Conditions
Dimensional flexibility is needed in industrial projects. Cupro Nickel tubes are offered in a broad variety of sizes to fit the condenser, piping and heat exchanger systems.
1. Standard Dimensional Availability
- Outside Diameter: 6 mm to 219 mm
- Wall Thickness: 0.7 mm to 20 mm
- Length Choices: Random, fixed or project cut lengths.
- End Finish: Plain ends, beveled ends, spaced.
2. Supply Conditions
- Annealed (to make it easier to work)
- Hard drawn (where stronger needs exist)
Custom lengths also decrease the time and cost of fabrication and installation onsite.
Applications Across Major Industries
Cupro Nickel 90/10 tubes are mostly suitable when the seawater must be exposed always but the velocity of the flow has to be regulated.
1. Power Generation Plants
- Surface condensers
- Cooling water lines
- Auxiliary heat exchangers
The alloy guarantees uniformity in both thermal and nuclear power plants in which steady cooling is crucial.
2. Marine and Shipbuilding
- Seawater piping systems
- Shipboard cooling circuits
- Onboard heat exchangers
The alloy has been beneficial to marine systems because of the resistance to biofouling and corrosion in saline environments.
3. Desalination Facilities
- Evaporators
- Pre-heaters
- Brine circulation lines
The material can resist continuous exposure to chloride, thus it can be used in desalination.
4. Offshore Platforms
- Utility cooling systems
- Firewater lines
- Seawater intake systems
Predictability of corrosion behavior and maintenance convenience are the main attributes of offshore operations.
Comparison: Cupro Nickel 90/10 vs 70/30
The choice of 90/10 and 70/30 is determined by the conditions of operation.
Key Differences:
- Nickel Content: 90/10 contains low nickel; 70/30 contains high nickel.
- Erosion Resistance: Moderate in 90/10; High in 70/30.
- Velocity Tolerance: Moderate (90/10); Higher (70/30).
- Cost: Lower for 90/10; Higher for 70/30
90/10 would provide a good value in case of controlled seawater velocity system. In the case of aggressive and turbulent environments, 70/30 can be advised.
Cupro Nickel 90/10 Tubes Exporters in Bangalore, India
Bangalore, India is a major sourcing location of marine grade copper alloys and Shubham Metals is best Cupro Nickel 90/10 Tubes Exporters in Bangalore, India to foreign markets to serve the marine, offshore and power generation industries. To satisfy the specifications of world projects, export supply entails high-quality control, accuracy of documentation and safe packaging.
Key Highlights of Cupro Nickel 90/10 Tube Exporters:
- International Standard Compliance: Tubes are produced and checked according to the ASTM B466 / ASTM B467 and UNS C70600, and are compliant with worldwide standards.
- Third Party Inspection Support: Approved agencies may carry out inspection of export orders according to the buyer demands so that there will be transparency and technical compliance.
- Export-Grade Packaging: The materials will be packed in a safe way by using moisture-resistant wrapping, protective end caps, and seaworthy wooden crates to avoid transportation damage.
- Complete Export Documentation: Shipments are delivered with mill test certificates, packing lists, commercial invoices, certificates of origin and additional documentation needed by the customs.
- Global Logistics Coordination: The export teams coordinate shipping schedules, freight coordination and customs clearance to organize the process of international delivery and prevent delays and complexities.
Selecting an old exporter would guarantee the same chemical structure, stable and trustworthy delivery schedules, and documentation support of marine and industrial projects on a global basis.
What to Check Before Purchase
The procurement choices must be based on the technical and commercial considerations.
1. Certifications and Compliance
Ensure the tubes comply with:
- ASTM B466 or ASTM B467
- Quality management standards ISO 9001.
- Marine approvals (DNV, ABS, as required)
2. Testing and Inspection
Reputable suppliers conduct:
- Surface defect testing Eddy current.
- Hydrostatic pressure test.
- Dimensional tolerance checking
- Analysis of chemical composition.
- Mechanical property testing.
3. Engineering Considerations
Check before placing an order:
- Required wall thickness for system pressure
- Diameter suitability for flow velocity
- Temperature operating range
- Welding and expansion compatibility
4. Documentation Requirements
- Mill Test Certificates (MTC)
- Heat-wise traceability
- Third party inspection (on request)
- Clear delivery timelines
Maintenance and Service Best Practices
To maximize service life:
- Keep desirable seawater speed.
- Fraudulent languid seawater conditions.
- Carry out erosion inspection periodically.
- Carry out system flushing in commissioning.
- Observe abnormal vibration or turbulence of flow.
The protective oxide layer is able to form effectively and this is achieved through proper commissioning which greatly improves the corrosion resistance.
Why Cupro Nickel 90/10 Remains a Reliable Engineering Solution
Cupro Nickel 90/10 is still popular as it possesses:
- Proven long-term corrosion resistance
- Predictable performance data
- Fabrication flexibility
- Cost-effective procurement
- Global standardization
The alloy offers reliable service life to industries that are located in a marine and coastal environment compared to the high cost of 70/30 grades.
Chosen appropriately and installed within the recommended operating conditions, Cupro Nickel 90/10 tubes offer a stable operation, lower frequency of maintenance, and dependable operation in terms of heat transfer efficiency in a wide variety of industrial systems.
Searching for high-perforamance Cupro Nickel 90/10 Tubes!
Looking for a reliable partner for your Cupro Nickel 90/10 tube requirements? Shubham Metals is ready to support your domestic and international projects with verified quality material, fast delivery, and complete documentation.
Technical Specifications
| Cupro Nickel 90/10 Tubes – Technical Specifications | |
|---|---|
| UNS Number | C70600 |
| ASTM Specification | B111 / B466 |
| Size Range (OD) | 1/8" to 24" (3 mm to 600 mm) |
| Wall Thickness | 0.5 mm to 20 mm (16 SWG to 4 BWG) |
| Length | Single Random, Double Random, Cut to Size, Coil Length |
| Form | Seamless / Welded / ERW / EFW |
| End Finish | Plain, Bevelled, Square Cut |
| Specifications | ASTM A213 / A269 / A789 / B338 / B622 / B163 |
| Surface Finish | Bright Annealed, Pickled, Polished, Mirror |
| Testing | Hydrostatic, Eddy Current, U-Bend, Flare, Flattening, IGC |
| Certification | EN 10204 3.1 / 3.2 Mill Test Certificate |
