COPPER NICKLE

COPPER NICKEL

COPPER NICKEL SQUARE AND RECTANGULAR HOLLOW SECTIONS are high-performance alloy steel tubes known for their exceptional resistance to corrosion, especially in marine and saltwater environments. These hollow sections combine the strength of nickel with the corrosion resistance of copper, making them ideal for demanding industrial, offshore, and coastal applications.

Copper Nickel alloys, commonly available in grades such as 90/10 and 70/30, provide excellent resistance to seawater corrosion, biofouling, and stress corrosion cracking. Their superior thermal conductivity, durability, and long service life make them suitable for structural, heat exchanger, and marine framework applications where reliability and longevity are critical.

Specifications of Copper Nickel Hollow Sections

Product Type	Copper Nickel Square & Rectangular Hollow Sections
Material Grades	Cu-Ni 90/10 (C70600) / Cu-Ni 70/30 (C71500)
Manufacturing Process	Seamless / ERW / Cold Drawn
Shape	Square (SHS) & Rectangular (RHS)
Size Range	20x20 mm to 200x200 mm (Square) / 40x20 mm to 300x150 mm (Rectangular)
Wall Thickness	1 mm to 10 mm (Custom Thickness Available)
Length	Standard 6 Meters or Custom Cut Lengths
Surface Finish	Mill Finish / Polished / Pickled
Standards	ASTM B466 / ASTM B467 / ASTM B111 (As Applicable)

Key Benefits

• Excellent Marine Corrosion Resistance: Highly resistant to seawater and chloride environments.
• Anti-Biofouling Properties: Naturally resists marine organism growth.
• High Strength & Durability: Suitable for structural and pressure applications.
• Good Fabrication & Weldability: Easy to weld and form using proper techniques.
• Thermal Stability: Performs reliably across a wide temperature range.
• Long Service Life: Minimal maintenance in harsh environments.
• Excellent Thermal Conductivity: Suitable for heat exchanger structures.

Installation Guidelines for Copper Nickel Hollow Sections

Proper installation ensures maximum corrosion resistance and long-term performance, particularly in marine and offshore environments.

• Avoid Contamination: Prevent contact with carbon steel during installation.
• Use Compatible Filler Materials: Follow recommended welding procedures for Cu-Ni alloys.
• Proper Support & Alignment: Ensure secure structural fastening.
• Galvanic Compatibility: Use compatible fasteners to prevent galvanic corrosion.
• Pressure Testing (If Applicable): Verify integrity for fluid-handling systems.

Maintenance Tips

Copper Nickel hollow sections require minimal maintenance due to their inherent corrosion resistance.

• Periodic Inspection: Check joints and welds for structural integrity.
• Surface Cleaning: Remove deposits or marine buildup if exposed to seawater.
• Monitor Galvanic Interaction: Inspect contact points with dissimilar metals.
• Routine Performance Checks: In heat exchanger or fluid systems.
• Environmental Assessment: Ensure proper application in aggressive chemical conditions.

Industries Using Copper Nickel Hollow Sections

• Marine & Shipbuilding: Offshore structures and seawater systems.
• Desalination Plants: Structural and piping applications.
• Power Plants: Condenser and heat exchanger frameworks.
• Oil & Gas Industry: Coastal and offshore installations.
• Chemical Processing: Corrosion-resistant structural components.
• Industrial Fabrication: High-performance structural assemblies.

Quality Assurance

Our Copper Nickel Square and Rectangular Hollow Sections undergo strict quality control to ensure chemical composition accuracy, dimensional precision, and structural reliability.

• Chemical Composition Testing: Verification of copper and nickel content.
• Mechanical Testing: Tensile and hardness validation.
• Dimensional Inspection: Accurate size and wall thickness measurement.
• Hydrostatic / Pressure Testing: Where applicable.
• Final Inspection: Complete quality review before dispatch.

Conclusion

COPPER NICKEL SQUARE AND RECTANGULAR HOLLOW SECTIONS offer exceptional resistance to marine corrosion, excellent strength, and long service life. Ideal for offshore, desalination, power generation, and industrial applications, these hollow sections provide dependable performance in some of the most challenging environments.