Ramani Metals

Copper Nickel Pipe Overview

1. Description:
Copper Nickel (Cu-Ni) pipes are alloys primarily composed of copper with nickel and strengthening elements such as iron and manganese. They are known for their excellent resistance to seawater corrosion, biofouling, and erosion, making them ideal for marine and offshore applications.

2. Common Copper Nickel Grades:

• Cu-Ni 90/10 (C70600): Contains 90% copper and 10% nickel with small additions of iron and manganese for improved strength and corrosion resistance.

• Cu-Ni 70/30 (C71500): Contains 70% copper and 30% nickel; offers superior strength and resistance to high-velocity seawater and steam.

3. Manufacturing Types:

• Seamless Pipes

• Welded Pipes

• ERW Pipes

• Fabricated Pipes

4. Standards & Specifications:

• ASTM B466 / B467 / B111

• ASME SB466 / SB467 / SB111

• EEMUA 234 (for marine applications)

• MIL-T-16420K (for naval applications)

5. Size Range:

• Outer Diameter: 1/8" NB to 12" NB and above

• Wall Thickness: Sch 5S to Sch XXS / Custom

6. Mechanical & Chemical Properties (Typical for Cu-Ni 90/10):

• Tensile Strength: ~350 MPa min

• Yield Strength: ~105 MPa min

• Elongation: 30% min

• Cu: Balance | Ni: 9–11% | Fe: 1–1.8% | Mn: 0.5–1%

7. Surface Finish:

• Annealed & Pickled

• Polished / Bright Finish

• Cold Drawn

8. Applications:

• Shipbuilding & Marine Engineering

• Desalination Plants

• Offshore Oil & Gas Systems

• Heat Exchangers & Condensers

• Cooling Circuits

• Firewater & Ballast Systems

9. Key Features:

• Excellent resistance to seawater corrosion and biofouling

• Good thermal and electrical conductivity

• High strength and ductility

• Easy to fabricate and weld

• Stable performance under high-pressure and high-temperature conditions

Heat Treated Wear Plate is supplied by Ramani Metal as a trusted dealer and stockist. This product offers excellent wear resistance, high impact strength, and durability for applications in mining, construction, earthmoving equipment, cement plants, and heavy machinery. We provide cut-to-size solutions, competitive pricing, and fast delivery across India. Ideal for fabrications requiring superior hardness, abrasion resistance, and long service life.