C71500 Copper Nickel Tubes PDF
C71500 Copper Nickel Size & Price PDF
What is a C71500 copper nickel tube?
ASTM B111 C71500 Copper-Nickel Tubes (CuNi 70/30) are high-performance seamless tubes specifically designed for marine, heat exchanger, and industrial applications. With a 70% copper and 30% nickel composition, these tubes offer exceptional corrosion resistance, biofouling protection, and high mechanical strength. They are widely used in seawater systems, condensers, power plants, and offshore applications.
70/30 Copper-Nickel Pipe
| ASTM B111 | C70600 | C71500 | C70600 | |
| Chemical composition (%) |
Copper (Remainder) | Nominal 90% | Nominal 70% | Nominal 90% |
| Nickel (Ni) | 9.0~11.0% | 29~33% | 9.0~11.0% | |
| Lead (Pb) | 0.05% max | 0.05% max | 0.05% max | |
| Iron (Fe) | 1.0~1.8 | 0.40~1.0 | 1.0~1.8 | |
| Zinc (Zn) | 1.0% max | 1.0% max | 1.0% max | |
| Manganese (Mn) | 1.0% max | 1.0% max | 1.0% max | |
| Tensile strength (MPa) |
As hot rolled | 275~425 | 310~450 | 275~425 |
| 1/4 Hard | 350~460 | 400~495 | 350~460 | |
| 1/2 Hard | 400~495 | 455~550 | 400~495 | |
| Hard | 490~570 | 515~605 | 490~570 | |
| Extra Hard | 505~585 | 550~635 | 505~585 | |
| Spring | 540~605 | 580~650 | 540~605 | |
Copper Nickel CuNi Corrosion Resistance
Copper alloys provide very good resistance to seawater, brine water, organic compounds, salts, diluted non-oxidizing acids, and more. CuNi 90/10 (C70600 & C7060X) is a Copper nickel iron alloy with a small content of manganese that adds excellent resistance to sea- and brackish water. Of all commercial copper alloys, CuNi 70/30 (C71500) provides the best resistance corrosion in watery environments. It is resistant to acid solutions and highly resistant to stress corrosion cracking, and impingement corrosion. In addition, CuNi 70/30 provides greater strength in higher pressures.
Chemical Composition
| Cu | Ni+Co | Fe | Zn | Pb | Mn |
| Balance | 29-33 | 0.4-1.0 | 1.0 max | 0.05 | 1.0 |
Mechanical Properties
| Density lb/in³ | 0.303 |
| Electrical Conductivity% IACS at 68°F | 4.6 |
| Thermal Conductivity (btu/ ft.hr.°F) | 56 |
| Elongation at Break, % | 10 |
| Melting Temperature °F | 2140-2265o F |
| Tensile Strength ksi | 45-52 |
| Yield Strength 0.2% offset ksi | 18 |
| Elongation | 27 |
| Hardness (HB) | 80-120 |
Our spot inventory
| ASME SB111 C71500 |
C71500 seamless condenser tube |
C71500 welded copper nickel pipe |
| ASTM B111 C71500 |
ASTM B466 C71500 pipe |
C71500 cupronickel boiler tube |
| 70/30 copper nickel pipe |
C71500 heat exchanger tube |
C71500 welded copper nickel pipe |
| SB111 UNS C71500 |
70/30 cupronickel condenser tube |
ASTM B111 C71500 heat exchanger tube |
|
C71500 copper nickel pipe |
ASTM B111 C71500 heat exchanger tube |
ASME SB111 C71500 copper nickel pipe |
About us
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.
