What is a C70600 copper nickel tube?
C70600, also known as cupronickel or naval brass, is a copper-based alloy with nickel as the main alloying element, containing approximately 90% copper and about 10% nickel. Due to its excellent resistance to seawater corrosion and good mechanical properties, this alloy is widely used in marine engineering, chemical equipment, seawater cooling systems, and other fields.
Chemical Composition
| Cu | Fe | Pb | Mn | Ni | Zn | |
| Min/Max | Rem | 1.0 - 1.8 | 0.05 | 1 | 9.0 - 11.0 | 1 |
| Nominals | 88.6000 | 1.4000 | - | - | 10.0000 | - |
Mechanical Properties
| Temper | Sect. Size | Cold Work | Type Min | Temp | Tensile Strength | YS 0.05% UL |
YS 0.02% Offset |
YS 0.005% Offset |
Elong. | RH B |
RH C |
RH F |
RH 30T |
VH 500 |
BH 500 |
BH 3000 |
Shear Strgth |
Fatigue Strgth |
Izod Impact Strgth |
| - | in. | % | - | F | ksi | ksi | ksi | ksi | % | B | C | F | 30T | 500 | 500 | 3000 | ksi | ksi | ft-lb |
| - | mm. | - | - | C | MPa | MPa | MPa | MPa | - | - | - | - | - | - | - | - | MPa | MPa | J |
| Tube | |||||||||||||||||||
| OS025 | 0 | 68 | 80 | 16 | - | - | - | - | - | - | - | - | - | - | - | - | |||
| OS025 | 0 | 0 | TYP | 20 | 552 | 110 | - | - | 42 | 15 | - | 65 | 26 | - | - | - | - | - | 0 |
| H55 | 0 | 68 | 60 | 57 | - | - | - | - | - | - | - | - | - | - | - | - | |||
| H55 | 0 | 0 | TYP | 20 | 414 | 393 | - | - | 10 | 72 | - | 100 | 70 | - | - | - | - | - | 0 |
Physical Properties
| Product Property | US Customary | Metric |
| Coefficient of Thermal Expansion | 9.5 · 10-6 per oF (68-572 F) | 17.1 · 10-6 per oC (20-300 C) |
| Density | 0.323 lb/in3 at 68 F | 8.94 gm/cm3 @ 20 C |
| Electrical Conductivity | 9 %IACS @ 68 F | 0.053 MegaSiemens/cm @ 20 C |
| Electrical Resistivity | 115.0 ohms-cmil/ft @ 68 F | 19.12 microhm-cm @ 20 C |
| Melting Point - Liquidus | 2100 F | 1149 C |
| Melting Point - Solidus | 2010 F | 1099 C |
| Modulas of Elasticity in Tension | 18000 ksi | 124000 MPa |
| Modulus of Rigidity | 6800 ksi | 46880 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 | 26.0 Btu · ft/(hr · ft2 · oF) at 68F | 45.0 W/m · oK at 20 C |
What is C70600 Copper Nickel Pipe used for?
Offshore and shipbuilding industry
Seawater cooling systems
Fire protection systems
Ballast water lines
Evaporators and condensers
Electricity generation
Condensers and heat exchanger tubes in power plants
Oil and gas industry
Chemical and petrochemical industry
Desalination of seawater
Our spot inventory
| ASME SB111 C70600 |
C70600 seamless condenser tube |
C70600 welded copper nickel pipe |
| ASTM B111 C70600 |
ASTM B466 C70600 pipe |
C70600 cupronickel boiler tube |
| 90/10 copper nickel pipe |
C70600 heat exchanger tube |
C70600 welded copper nickel pipe |
| SB111 UNS C70600 |
90/10 cupronickel condenser tube |
ASTM B111 C70600 heat exchanger tube |
|
C70600 copper nickel pipe |
ASTM B111 C70600 heat exchanger tube |
ASME SB111 C70600 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.
