What is a C70600 copper nickel tube?
C70600 Copper-Nickel Tubes (CuNi 90/10) are high-strength, corrosion-resistant tubing solutions composed of 90% copper and 10% nickel, with small amounts of iron and manganese for enhanced seawater corrosion resistance, biofouling resistance, and durability. These tubes are widely used in marine, offshore, power generation, and industrial applications due to their excellent mechanical properties and longevity in harsh environments.
GNEE has the following specs for C706 copper nickel in stock:
ASTM B151
CUNI
ASTM B466
ASTM B111
ASTMB171
ASME SB466
ASME SB111
ASME SB151
ASMESB171
DIN 2.0872
BS 2871 CN102
EN CW352H
MIL-C-1726F
MIL-C-24679
MIL-T-16420K
ASTMB122/B122M
MIL-C-15726
ASTM B956/B956M
ASME SB467
ASTM B467
ASTM B432
SAE J461
SAEJ463
ASME SB359
MIL-T-15005
MIL-T-22214





Chemical Composition ASTM B466 Chemical Composition 90/10 Seamless Pipes and Tubes
| Element | Content (%) |
|---|---|
| Cu | 88.7 |
| Fe | 1.3 |
| Ni | 10.0 |
Mechanical Properties ASTM B466 Chemical Composition 90/10 Seamless Pipes and Tubes
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 303-414 MPa | 43900-60000 psi |
| Tensile strength, yield (depending on temper) | 110-393 MPa | 16000-57000 psi |
| Elongation at break (in 254 mm) | 42.00% | 42.00% |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Shear modulus | 52.0 GPa | 7540 ksi |
| Poisson's ratio | 0.34 | 0.34 |
| Elastic modulus | 140 GPa | 20300 ksi |
C70600 Copper Nickel Sizing
Round Bar (3/8" dia to 11")
Plate (3/16" thick to 3")
Sheet (.065", .125")
Tube (3/8" OD to 1" )
Pipe (1/4" Standard (sch 40) to 12" (1/4" Extra Heavy (sch 80) to 4") (1/2" Class 200 Mil-T-16420 K to 12)
Fittings (Class 200, sch 40, sch 80, Buttweld Fittings) (Threaded and Socketweld Fittings, 3000#/6000#) (C96200 400# Socketweld Fittings) • Flanges (Slip-on, threaded, blind, Weldneck Flanges)
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.





