CuproNickel Products

Cupro Nickel tubes with high erosion and corrosion resistance, excellent weldability and antifouling performance — engineered for marine, offshore and critical heat transfer systems.

70/30 Cupro Nickel Tubes

Tube Tech produces smooth bore 70/30 Cupro Nickel tubes of the highest standard, rigorously tested for condensers and heat exchanger service. These tubes have the highest resistance to stress-corrosion cracking and are available in a variety of outside diameter, wall thickness and tempers.

This alloy offers improved corrosion resistance and is almost insensitive to stress corrosion, making it ideal where severe erosion and corrosion have been experienced at elevated temperatures, high velocities and extreme turbulence.

Key Features

  • Highest resistance to stress-corrosion cracking
  • Excellent erosion and corrosion resistance for severe service
  • Superior dimensional control with specified mechanical properties
  • Smooth bore with high quality surface finish
  • Available in Light drawn & Annealed tempers
  • Excellent weldability and antifouling properties

End Applications

Heat Exchangers Oil Coolers Condensers Ship Building & Repairs Offshore Oil Rigs Distiller Tubes Evaporators Ferrules

Technical Specifications

AlloyCupro Nickel 70/30
Dimensional Range (OD)4.00 mm to 159.00 mm
Wall Thickness0.4 mm to 8 mm
LengthUp to 8 mtrs
TempersLight drawn & Annealed
StandardsBS 2871 Part 3; SB – 111 / 359 / 395 / 466; IS 1545; JIS H 3300; NFA 51 102; NES780
SymbolsCN 107; C 71500; CuNi30Mn1Fe; C 7150; CuNi30Mn1Fe (Part 3)