What is a C70600 copper nickel tube?
GNEE is a professional manufacturer of ASTM B111 90/10 copper-nickel seamless tubes, with many years of experience in manufacturing such products. We offer high-quality, low-cost products with excellent service.
C70600 copper-nickel alloy (containing 10% copper and nickel) is suitable for applications requiring high corrosion resistance and stress cracking resistance. C70600 copper-nickel alloy (containing 10% copper) is known for its moderate strength, good weldability, and formability.
C70600 copper-nickel alloy is a copper alloy, further classified as a copper-nickel alloy (copper-nickel sub-alloy). CW352H is the EN number for this material. C70600 is the UNS number. Furthermore, its EN chemical formula is CuNi10Fe1Mn. The British Standard (BS) number is CN102. The industry name is copper-nickel sub-alloy 90/10.
What are the Benefits of using C70600 Pipes?
Durability because of their chemical properties
It offers versatility in its use due to their adaptability in applications with varying temperature and pressure.
Anti-corrosive
Easy to alter the structure to fit the piping specification.
They offer a tight connection
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 |
FAQ
1. What is C70600 material?
C70600 is a 90/10 copper-nickel alloy (approximately 90% Cu, 10% Ni, with a small amount of Fe and Mn). It is known for its excellent seawater corrosion resistance, excellent anti-biofouling performance, good mechanical strength and welding processability. It is widely used in marine heat exchangers, ship cooling pipelines, seawater desalination and seawater circulation systems of oil and gas platforms.
2. What is the difference between nickel, copper, and copper-nickel?
Nickel is a silvery-white, hard, ferromagnetic metal known for its high strength, toughness and resistance to high‐temperature oxidation, while copper is a soft, reddish metal prized for its excellent electrical and thermal conductivity; copper-nickel (Cu-Ni) alloys combine the two-typically 10–30% Ni in Cu-offering a balance of good conductivity with greatly enhanced strength, toughness and especially corrosion resistance (notably in seawater), making them ideal for marine and heat‐exchanger applications.
3. What are the disadvantages of copper nickel?
Copper-nickel is much more expensive than ordinary copper or steel, has lower thermal and electrical conductivity than pure copper, is susceptible to stress corrosion cracking in ammonia-rich or sulfide environments, has limited strength and hardness compared to steel (requiring thicker sections), and may corrode galvanically when combined with more noble metals, all of which can limit their use in high-stress, high-temperature, or chemically aggressive environments.
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.
