C71500 Copper Nickel Tubes PDF
C71500 Copper Nickel Size & Price PDF
What is a C71500 copper nickel tube?
The C71500 COPPER NICKEL "70/30" alloy is the corrosion resistant alloy mainly used in salt water environment. The alloy is the combination of nickle, iron and manganese that helps in maintaining good corrosion resistance and is commonly used in valves, and pump components.
Chemical Composition:
| Cu | Fe | Pb | Mn | Ni | Zn | |
| Min/Max | Rem | 0.40 – 1.0 | 0.05 | 1 | 29.0 – 33.0 | 1 |
| Nominals | 69.5 | 0.5 | – | – | 30 | – |





Fabrication:
| Joining Technique | Suitability |
| Brazing | Excellent |
| Butt Weld | Excellent |
| Capacity for Being Cold Worked | Good |
| Capacity for Being Hot Formed | Good |
| Coated Metal Arc Welding | Excellent |
| Gas Shielded Arc Welding | Excellent |
| Machinability Rating | 20 |
| Oxyacetylene Welding | Good |
| Seam Weld | Excellent |
| Soldering | Excellent |
| Spot Weld | Excellent |
Physical Properties:
| Product Property | US Customary | Metric |
| Coefficient of Thermal Expansion | 9.0 ·10-6 per oF (68-572 F) | 16.2 ·10-6 per oC (20-300 C) |
| Density | 0.323 lb/in3 at 68 F | 8.94 gm/cm3 @ 20 C |
| Electrical Conductivity | 4 %IACS @ 68 F | 0.027 MegaSiemens/cm @ 20 C |
| Electrical Resistivity | 225.0 ohms-cmil/ft @ 68 F | 37.4 microhm-cm @ 20 C |
| Melting Point – Liquidus | 2260 F | 1238 C |
| Melting Point – Solidus | 2140 F | 1171 C |
| Modulas of Elasticity in Tension | 22000 ksi | 152000 MPa |
| Modulus of Rigidity | 8300 ksi | 57230 MPa |
| Specific Gravity | 8.94 | 8.94 |
| Specific Heat Capacity | 0.09 Btu/lb/oF at 68 F | 377.1 J/kg · oK at 293 K |
| Thermal Conductivity | 17.0 Btu · ft/(hr · ft2·oF)at 68F |
29.4 W/m · oK at 20 C |
Cu-Ni 70/30 Pipes & Tubes Application Industries
Petrochemical Industry
Oil and Gas Industry
Chemical Industry
Power Plant Industry
Energy Industry
Pharmaceuticals Industry
Pulp & Paper Indusry
Food Processing Industry
Aerospace Industry
Refining Industry
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.





