Copper Nickel Cu Ni 70/30 Tube Fittings
Minimum Order : 100 piece
Customization as per requirements
Copper Nickel Cu Ni 70/30 Tube Fittings – Specification
| Material | Brass, Carbon Steel, Alloy Steel, Plastic Pvc/ Ptfe |
|---|---|
| Thread Type | Npt, Bsp, Bspt, Metric, Iso |
| Connection Type | Push To Connect, Compression, Welded, Threaded, Flared |
| Compliance Standards | Jic, Din, Asme, Astm, Iso, Sae |
Copper Nickel Cu-Ni 70/30 Tube Fittings
Type of Sub-products

Compression Tube Fittings Compression Tube Fittings
Provide tool free connection and disconnection, ideal for maintenance bypasses, pilot plants, and temporary marine setups where speed and reliability matter.

Crosses & Manifold Blocks Crosses & Manifold Blocks
Critical for uniform sealing and tube grip, ferrules in Cu Ni 70/30 withstand erosion, vibration, and long term immersion without compromising joint strength.

Caps & Plugs Caps & Plugs
Seal off unused outlets or temporarily close circuits during testing and commissioning, protecting systems from debris and seawater intrusion.
Frequently Asked Questions
What are Copper Nickel Cu Ni 70/30 Tube Fittings and why are they widely used in marine systems?
Copper Nickel Cu Ni 70/30 Tube Fittings are precision engineered components made from an alloy containing approximately 70% copper and 30% nickel, often with small additions of iron and manganese for enhanced strength. This alloy delivers excellent resistance to seawater corrosion, biofouling, and stress related cracking, which makes the fittings a preferred choice for shipbuilding, offshore platforms, desalination plants, and cooling water systems. Their inherent ductility and weldability simplify installation, while long term stability under high flow velocities ensures reduced maintenance and longer equipment life.
What materials and standards define the composition of Cu Ni 70/30 Tube Fittings?
The alloy conforms to international specifications such as ASTM B466, ASTM B122, and ASME SB466, guaranteeing consistent chemical composition (Cu 69–71%, Ni 29–32%) and controlled mechanical properties. Iron content (up to 1%) improves resistance to impingement attack, while precise manufacturing maintains tight dimensional tolerances. Many suppliers also certify fittings to MIL T 16420, EN 12451, and ISO standards to meet global marine and industrial requirements. By adhering to these standards, users benefit from traceability, predictable performance, and compatibility with associated copper nickel piping.
What maintenance practices extend the lifespan of Copper Nickel 70/30 Tube Fittings?
Routine maintenance includes regular flushing of stagnant lines, periodic inspection for debris or scaling, and monitoring for galvanic interactions if fittings are connected to dissimilar metals. Implementing proper cathodic protection in mixed metal systems, avoiding sharp bends that cause turbulence, and ensuring adequate flow velocities (above 1 m/s) minimize localized corrosion. When these guidelines are followed, Copper Nickel 70/30 fittings can deliver decades of reliable service even in continuous seawater exposure.
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Countries We Export – Copper Nickel Cu Ni 70/30 Tube Fittings
- India
Cities We Supply – Copper Nickel Cu Ni 70/30 Tube Fittings
- Mumbai
- Lucknow
- Nashik
- Pune
- Rajkot
- Moradabad
- Angul
- Rudrapur
- Hosdurg
- Gandhinagar
- Rajahmundry
- Durgapur
- Bharuch
- Panipat
Industries We Serve – Copper Nickel Cu Ni 70/30 Tube Fittings
Sugar
Oil And Gas Industries
Paper Mill
Power Plant
Bridge And Building
Aerospace Industries
Automobile Industry
Electrical Industry
Defense Industry
Construction & Fabrications
Ring Man Units
Railways

Gasket Industry
Pharmaceuticals Industry
