AL-6XN Round Bar

Copper Nickel 70/30 Pipe Fittings – Manufacturer, Supplier & Exporter in Mumbai, India

Copper Nickel 70/30 Pipe Fittings – Manufacturer, Supplier & Exporter in Mumbai, India

Virami Steel Hub is a trusted manufacturer, supplier, stockist, and exporter of high-quality Copper Nickel 70/30 Pipe Fittings in Mumbai, India. We offer a wide range of premium Cu-Ni alloy pipe fittings designed for excellent corrosion resistance, durability, and long-term performance in marine and industrial environments.

Our Copper Nickel 70/30 pipe fittings are manufactured using high-grade raw materials and advanced production techniques to ensure precise dimensions, superior mechanical strength, and reliability. These fittings are widely used in industries where resistance to seawater, biofouling, and harsh environmental conditions is essential.

With a strong supply network, we cater to clients across India and export to the USA, Europe, the Middle East, Africa, and Southeast Asia, ensuring consistent quality and timely delivery.

Stainless Steel 316 Round Bars

What are Copper Nickel 70/30 Pipe Fittings?

Copper Nickel 70/30 Pipe Fittings are piping components used in industrial piping systems to:

  • Connect pipelines
  • Change flow direction
  • Branch piping systems
  • Control fluid transport

These fittings are made from Copper Nickel 70/30 (Cu-Ni 70/30) alloy, which consists of 70% copper and 30% nickel, offering excellent resistance to seawater corrosion and marine environments.


Chemical Composition (Typical)

  • Copper (Cu): 65 – 71%
  • Nickel (Ni): 29 – 33%
  • Iron (Fe): 0.4 – 1.0%
  • Manganese (Mn): 0.5 – 1.0%
  • Carbon (C): ≤ 0.05%
  • Lead (Pb): ≤ 0.02%

Key Features of Copper Nickel 70/30 Pipe Fittings

  • Excellent resistance to seawater corrosion
  • Superior resistance to biofouling and marine growth
  • High resistance to erosion and impingement attack
  • Good mechanical strength
  • Excellent thermal conductivity
  • Long service life in marine environments
  • Good fabrication and weldability
  • Reliable performance under high flow conditions

Mechanical Properties

  • Tensile Strength: ~360 – 480 MPa
  • Yield Strength: ≥ 125 MPa
  • Elongation: ≥ 30%
  • Hardness: ~100 HB
  • Density: 8.95 g/cm³

Physical Properties

  • Melting Range: 1170 – 1240°C
  • Modulus of Elasticity: ~150 GPa
  • Thermal Conductivity: ~29 W/m·K
  • Electrical Resistivity: ~0.34 µΩ·m
  • Coefficient of Thermal Expansion: ~16.2 µm/m°C

Corrosion Resistance

Copper Nickel 70/30 Pipe Fittings provide excellent resistance to:

  • Seawater and marine atmospheres
  • Biofouling and microbial corrosion
  • Chloride environments
  • Saltwater corrosion
  • Brine and industrial water systems

This makes them one of the best materials for marine applications.


Heat Treatment

Copper Nickel 70/30 is typically supplied in:

  • Annealed condition

This enhances ductility and workability.


Weldability

Copper Nickel 70/30 offers excellent weldability:

  • TIG (GTAW)
  • MIG (GMAW)
  • SMAW

Recommendations:

  • Use suitable Cu-Ni filler metals
  • Maintain clean welding surfaces
  • Control heat input

Machinability

Copper Nickel 70/30 has moderate machinability:

  • Use sharp cutting tools
  • Maintain proper cutting speeds
  • Use adequate lubrication
  • Avoid excessive heat buildup

Standards & Specifications

  • ASTM B366
  • ASME SB366
  • ANSI B16.9
  • ASTM B466
  • ASTM B467

Available Types of Copper Nickel 70/30 Pipe Fittings

  • Elbows (45° and 90°)
  • Tees (Equal and Reducing)
  • Reducers (Concentric and Eccentric)
  • Pipe Caps
  • Stub Ends
  • Cross Fittings
  • Couplings

Sizes & Specifications

  • Size Range: ½ inch to 48 inches
  • Thickness: SCH 10, SCH 20, SCH 40, SCH 80, SCH 160
  • Types: Seamless and Welded

Surface Finish:

  • Pickled
  • Polished
  • Matte

(Custom sizes available as per project requirements)


Applications of Copper Nickel 70/30 Pipe Fittings

Marine Industry

  • Seawater piping systems
  • Shipbuilding and offshore platforms

Power Generation

  • Condensers and heat exchangers

Oil & Gas Industry

  • Offshore pipelines
  • Cooling water systems

Desalination Plants

  • Saltwater handling systems

Chemical Industry

  • Brine and chemical transport systems

Quality Testing & Inspection

All fittings undergo strict quality checks:

  • Chemical composition testing
  • Mechanical testing
  • Dimensional inspection
  • Surface quality inspection
  • PMI testing

We provide Mill Test Certificates (MTC) and third-party inspection services.

Packaging & Delivery

  • Export-grade wooden boxes or pallets
  • Protective wrapping
  • Proper labeling and traceability
  • Secure global shipping

Why Choose Virami Steel Hub?

  • Trusted Cu-Ni pipe fittings manufacturer in Mumbai
  • Large ready stock availability
  • Competitive pricing
  • Custom manufacturing solutions
  • Compliance with international standards
  • Strong global export network
  • Reliable customer support

Conclusion

Copper Nickel 70/30 Pipe Fittings are widely used in industries requiring excellent resistance to seawater corrosion and marine environments. Their durability, strength, and resistance to biofouling make them ideal for marine, offshore, and desalination applications.

Virami Steel Hub supplies high-quality Copper Nickel 70/30 pipe fittings manufactured according to international standards, ensuring long-term performance and reliability.

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