Copper Nickel 90/10 Pipes & Tubes Manufacturer, Supplier & Exporter in Mumbai, India

Copper Nickel 90/10 Pipes & Tubes Manufacturer, Supplier & Exporter in Mumbai, India

Virami Steel Hub is a leading manufacturer, supplier, stockist, and exporter of Copper Nickel 90/10 Pipes & Tubes in Mumbai, India. We supply high-quality Cu-Ni 90/10 pipes and tubes across India and export globally to the USA, Europe, the Middle East, Canada, Australia, and Southeast Asia.

Copper Nickel 90/10 (UNS C70600) is an alloy consisting of 90% copper and 10% nickel, with small additions of iron and manganese. It provides excellent corrosion resistance, especially in seawater and marine environments. Due to its outstanding resistance to biofouling and stress corrosion cracking, Copper Nickel 90/10 pipes and tubes are widely used in marine, offshore, desalination, and heat exchanger applications.

What Are Copper Nickel 90/10 Pipes & Tubes?

Copper Nickel 90/10 Pipes & Tubes are hollow cylindrical products manufactured from Cu-Ni alloy UNS C70600. This alloy offers excellent resistance to seawater corrosion, good strength, and excellent fabrication properties.

Compared to Copper Nickel 70/30, the 90/10 grade offers slightly lower strength but improved formability and cost-effectiveness, making it suitable for moderate marine applications.

Key Features of Copper Nickel 90/10 Pipes & Tubes:

  • Excellent resistance to seawater corrosion
  • Outstanding resistance to biofouling
  • Good strength and ductility
  • Excellent resistance to stress corrosion cracking
  • Good weldability and fabrication
  • Long service life in marine environments

These properties make Copper Nickel 90/10 ideal for piping and heat exchange systems.


Chemical Composition of Copper Nickel 90/10

Copper Nickel 90/10 conforms to UNS C70600 with the following composition:

Element Composition (%)
Copper (Cu) 86 – 90
Nickel (Ni) 9 – 11
Iron (Fe) 1.0 – 1.8
Manganese (Mn) 1.0 max
Others Trace

Role of Key Elements:

  • Copper (Cu): Provides primary corrosion resistance
  • Nickel (Ni): Enhances strength and seawater durability
  • Iron (Fe): Improves erosion and impingement resistance
  • Manganese (Mn): Enhances mechanical properties

The balanced composition ensures reliability in marine and industrial conditions.


Mechanical Properties of Copper Nickel 90/10 Pipes & Tubes

Copper Nickel 90/10 offers reliable mechanical performance:

  • Tensile Strength: 275 – 380 MPa
  • Yield Strength: 105 – 125 MPa
  • Elongation: 30% (min)
  • Hardness:80 – 100 HB
  • Density: 8.94 g/cm³

These properties make it suitable for low to moderate pressure systems.


Physical Properties of Copper Nickel 90/10

  • Melting Point: ~1090 – 1145°C
  • Modulus of Elasticity: 140 GPa
  • Thermal Conductivity: 40 – 50 W/m·K
  • Coefficient of Thermal Expansion: 17 µm/m°C
  • Excellent thermal stability

Copper Nickel 90/10 provides good heat transfer efficiency in condenser and cooling systems.


Corrosion Resistance of Copper Nickel 90/10 Pipes & Tubes

Copper Nickel 90/10 is highly resistant to:

  • Seawater and marine atmospheres
  • Brackish water
  • Biofouling and marine growth
  • Stress corrosion cracking
  • Chloride-containing environments
  • Erosion in moderate flow conditions

It forms a protective oxide film that prevents further corrosion, ensuring long service life.


Heat Treatment of Copper Nickel 90/10 Pipes & Tubes

Copper Nickel 90/10 is usually supplied in annealed condition.

Annealing Process:

  • Heat to 600 – 900°C
  • Controlled cooling
  • Relieves internal stress and improves ductility

Heat treatment enhances formability and workability.


Machinability of Copper Nickel 90/10 Pipes & Tubes

Copper Nickel 90/10 has moderate machinability.

  • Use sharp cutting tools
  • Moderate cutting speeds
  • Adequate lubrication recommended
  • Avoid excessive work hardening

Proper machining ensures smooth finish and dimensional accuracy.


Weldability of Copper Nickel 90/10 Pipes & Tubes

Copper Nickel 90/10 offers excellent weldability.

  • TIG (GTAW) and MIG (GMAW) welding recommended
  • Use matching filler metal (ERCuNi)
  • Clean surface before welding
  • Preheating generally not required

Proper welding ensures strong, corrosion-resistant joints.


Available Sizes & Specifications

Copper Nickel 90/10 pipes and tubes are supplied according to international standards.

Standards:

  • ASTM B466 (Seamless Pipes & Tubes)
  • ASTM B467 (Welded Pipes & Tubes)
  • ASTM B111 (Condenser & Heat Exchanger Tubes)
  • ASME SB466 / SB467 / SB111

Size Range:

  • Pipe Size: ½" NB to 24" NB
  • Tube OD: 6 mm to 219 mm
  • Wall Thickness: SCH 5 to SCH XXS
  • Length: Single random, double random, or custom cut lengths

Forms:

  • Seamless Pipes
  • Welded Pipes
  • Condenser Tubes
  • Heat Exchanger Tubes
  • U-Tubes

Surface finishes include annealed, pickled, polished, and bright finish.


Applications of Copper Nickel 90/10 Pipes & Tubes

Copper Nickel 90/10 pipes and tubes are widely used in:

Marine Industry

  • Seawater piping systems
  • Shipbuilding
  • Offshore structures

Desalination Plants

  • Evaporators
  • Brine heaters
  • Cooling water piping

Oil & Gas Industry

  • Offshore piping
  • Firewater systems
  • Heat exchangers

Power Generation

  • Condenser tubes
  • Cooling systems

Industrial Applications

  • Hydraulic systems
  • Chemical processing equipment
  • Heat transfer systems

Its excellent corrosion resistance makes it ideal for long-term marine service.


Advantages of Copper Nickel 90/10 Pipes & Tubes

  • Excellent seawater corrosion resistance
  • Good strength and ductility
  • Superior resistance to biofouling
  • Long service life
  • Low maintenance
  • Good thermal conductivity

These advantages make Copper Nickel 90/10 a cost-effective solution for marine and industrial applications.


Quality Testing & Inspection

All Copper Nickel 90/10 pipes and tubes undergo strict quality checks:

  • Chemical analysis
  • Mechanical testing
  • Hydrostatic testing
  • Eddy current testing
  • Dimensional inspection
  • Positive Material Identification (PMI)

Mill Test Certificates (MTC) are provided as per ASTM / ASME standards. Third-party inspection is available upon request.


Why Choose Virami Steel Hub for Copper Nickel 90/10 Pipes & Tubes?

  • Trusted manufacturer and exporter in Mumbai, India
  • Ready stock and fast delivery
  • Custom sizes and specifications available
  • Strict quality assurance
  • Competitive pricing
  • Global export capabilities

Conclusion

Copper Nickel 90/10 Pipes & Tubes are high-performance alloy products offering excellent seawater corrosion resistance, good strength, and long-term durability. Widely used in marine, offshore, desalination, and power generation industries, they provide reliable performance in corrosive environments.

Virami Steel Hub supplies certified Copper Nickel 90/10 pipes and tubes in various sizes and specifications worldwide, ensuring quality, performance, and customer satisfaction.

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