Copper Nickel

C71500 70/30 – Copper Nickel

Strength and Performance in Extreme Environments

C71500 copper nickel plate is prized for its balance of strength, toughness, and excellent corrosion resistance in demanding marine and chemical settings, making it suitable for hull structures, seawater piping, and condenser components. Its good wear resistance supports valve bodies, gears, and pump internals exposed to abrasive fluids, while its fatigue strength enhances offshore platforms and structural supports. The alloy’s stability under heat and humidity suits heat exchangers, condensers, and desalination equipment. C71500’s versatility also extends to architectural applications requiring durable, low-maintenance metal surfaces.

Available Shapes for

C71500 70/30 – Copper Nickel

Plate
Plate
Sheet
Sheet
Bar
Bar
Pipe
Pipe
Tube
Tube
Forging
Forging
Flange
Flange

Applications for

C71500 70/30 – Copper Nickel

Fasteners
Fittings
Heat Exchangers
Seawater Piping
Valves
Gears
Impellers
Valve Parts
Tubesheets
Valve Stems
Baffles
Condensers
Evaporators
Flanges
Fire Supression Systems

Description

C71500 copper nickel plate is prized for its balance of strength, toughness, and excellent corrosion resistance in demanding marine and chemical settings, making it suitable for hull structures, seawater piping, and condenser components. Its good wear resistance supports valve bodies, gears, and pump internals exposed to abrasive fluids, while its fatigue strength enhances offshore platforms and structural supports. The alloy’s stability under heat and humidity suits heat exchangers, condensers, and desalination equipment. C71500’s versatility also extends to architectural applications requiring durable, low-maintenance metal surfaces.

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  • Specifications
  • Size Range
  • Additional Information
  • Note
Standards MIL-C-15726F

ASME SB-171

ASTM B 171

UNS Designation Number 70-30 (UNS C71500)
Nominal Chemicals 70-30: Copper 69.5%, Nickel 30.0%, Iron 0.5%
Machinability 20
Average Tensile Mechanical Properties 40000 psi
Average Yield Mechanical Properties 15000 psi
Average Elongation Mechanical Properties 30 %
Thickness Range 0.063 to 0.375 in
Width 36 in
Length 96 in
Plate Thickness 0.25 to 5 in
Plate Width 36 to 60 in
Plate Length Up to 240 in

C715 Cupro-Nickel is a 70/30 copper-nickel alloy that is almost entirely resistant to stress corrosion and is ideal when used in applications involving high-velocity polluted seawater. Typical 715 CuNi applications for use in the chemical and desalination industries include tubes and tube sheets for condensers, evaporators, and heat exchangers; tubes for carrying seawater; valve bodies; pump bodies and impellers.

Inquire about other sizes.