C71500 70/30 copper-nickel alloy Condensers tubing

C71500 Copper Nickel Tubes PDF

C71500 Copper Nickel Size & Price PDF

Copper tubing, made of copper alloys, has a wide range of applications. One type is the 70/30 copper-nickel alloy tubing, which contains 70% copper and 30% nickel. GNEE offers seamless 70/30 copper-nickel alloy tubing in various sizes, shapes, and specifications. These tubing requires no special material treatment and is easy to weld, machine, and cold-work.

70/30 copper-nickel alloy/NES 780 is widely used in marine flanges, propeller sleeves, rack bodies, weld backing rings, and flexible metal hoses.

It exhibits excellent resistance to seawater corrosion due to its ability to quickly form a protective film upon contact with clean seawater.

Copper (Cu): Approximately 65.0-71.5%

Nickel (Ni): Approximately 29.0-33.0%

Iron (Fe): Maximum 0.4%

Manganese (Mn): Maximum 1.0%

Zinc (Zn): Maximum 1.0%

Tensile Strength: Typically ranges from 372 MPa (54,000 psi) to 552 MPa (80,000 psi)

Yield Strength: Generally around 138-483 MPa (20,000-70,000 psi)

Elongation: Typically 30-45%

Density: Approximately 8.94 g/cm³ (0.323 lb/in³)

Melting Point: Approximately 1170-1240°C (2140-2260°F)

Condensers

Seawater piping

Power plants

Exchanger shell

Gnee is a premier manufacturer and international supplier of comprehensive copper and copper alloy products, committed to delivering excellence in copper tubes, copper sheets, copper plates, copper bars, copper rods, copper wires, and copper strips.

Our Extensive Product Portfolio & Specifications:

Copper Tubes & Pipes:
We supply a full range including **Capillary Tubes, Thin-Walled Copper Tubes, Thick-Walled Copper Tubes, Round Pipes, Square Pipes, Rectangular Pipes, Welded Pipes, Seamless Pipes, Heat Exchanger Tubes, and Condenser Tubes.

Copper Sheets, Plates:
Our flat-rolled products cover Copper Foils, Thin Sheets, Thick Plates, and Circles (Round Plates) in various tempers (O, H) for diverse applications.

Copper Bars, Rods & Profiles:
We offer Round Bars, Square Bars, Hexagonal Bars, and Flat Bars with excellent machinability and strength.

Copper Wires & Strips:
Our lineup includes high-conductivity Bare Copper Wires, Stranded Wires, and precisely manufactured Copper Strips.

Common Alloys & International Standards:

We master a wide array of materials compliant with ASTM, EN, JIS, and GB standards:

Pure Copper: C11000 (ETP Copper), C10200 (Oxygen-Free Copper), C12000 (DLP)

Brass Alloys: C26000 (Cartridge Brass), C27200 (Brass), C28000 (Muntz Metal)

Copper-Nickel: C70600 (CuNi90/10), C71500 (CuNi70/30)

Phosphor Bronze: C51900, C52100, C54400

Serving industries from HVAC/R and plumbing to electrical, automotive, and marine engineering, Gnee provides OEM support, competitive pricing, and reliable bulk supply for your global projects.