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C70600 CU-NI 90/10 Copper Tube
ASTM B466 C70600 Copper Nickel Pipes
Products Description
C70600 copper-nickel tubes, composed of 90% copper and 10% nickel, are engineered for exceptional corrosion and biofouling resistance in harsh marine and industrial environments. This alloy offers superior resistance to impingement attack, stress corrosion cracking, and seawater-induced erosion, making it a trusted choice for high-velocity cooling systems.
Thanks to their durability and anti-fouling properties, CuNi 90/10 tubes are widely used in marine condensers, heat exchangers, and desalination plants, where they outperform other copper alloys under demanding thermal and chemical conditions.
Applications
C70600 copper-nickel tubes are commonly used in:
Heat exchangers, condensers, and cooling systems in marine and offshore environments
Desalination equipment for seawater treatment and brine circulation
Chemical and industrial piping systems exposed to aggressive media
Power generation and shipboard thermal systems
Ballast water systems and ship hull coolers
Oil & gas platforms and refineries operating near coastal areas
Key benefits
Outstanding resistance to seawater corrosion and biofouling: performs reliably in marine environments with minimal maintenance or cleaning.
Superior protection against impingement and erosion: withstands high-velocity flows better than aluminum brass or admiralty brass.
High resistance to stress corrosion cracking (SCC): ensures structural integrity in thermal cycling and chemically aggressive systems.
Excellent thermal conductivity: delivers efficient heat transfer in large-scale cooling and heat exchange applications.
Reliable long-term performance: reduces downtime and total cost of ownership in mission-critical systems.
Meets international standards: produced in compliance with ASTM B111 and other industry-specific specifications.
Technical specifications
UNS no.
C70600 – BSI No. CN102 – ISO name CuNi10Fe1Mn
Chemical comp. (%)
Cu rem / Ni 9 ~ 11 / Pb 0.05 / Fe 1 ~ 1.8 / Zn 1 max / Mg 1 max
ASTM spec.
B 111, B 395, B 466, B 552
ASME spec.
SB 111, SB 395, SB 466
Applications
Heat exchangers, condensers, and cooling systems; desalination equipment, and chemical piping systems.
Temper
O61 annealed / H55 light-drawn
Properties and metrics
Products provided by GNEE
| Product Form | Main Alloy / UNS Number (Select Common Grades) | Common ASTM Standards | Thickness / Diameter | Width / OD | Length | Surface Finish |
|---|---|---|---|---|---|---|
| Copper Tube/Pipe | C10100, C10200, C10300, C10800, C11000, C12000, C12200, C14200, C19200, C23000, C44300, C68700, C70600, C71500 | B75, B88, B111, B280, B395, B543 | 0.012" - 0.125" (0.3mm - 3.2mm) Wall | 1/8" - 6" (3.2mm - 152mm) OD | Straight: 10ft - 20ft (3m - 6m) Coils: Custom |
Drawn (Bright), Annealed (Soft), Bare, Tin-Plated |
| Copper Sheet/Plate | C10100, C10200, C11000, C11300, C11400, C11600, C12200, C14200, C19200, C22000, C26000, C26800, C27000, C51000, C52100, C54400, C63000, C77000 | B152, B370, B36 | Sheet: 0.006" - 0.188" (0.15mm - 4.8mm) Plate: > 0.188" (4.8mm) |
12" - 48" (305mm - 1220mm) or more | 36" - 144" (914mm - 3658mm) or more | Mill Finish, Polished (Mirror), Brushed, Oxidized, Pre-painted |
| Copper Bar/Rod | C10100, C11000, C11300, C11400, C11600, C14500, C14700, C15000, C15700, C18200, C18400, C18700, C36000, C46400, C48500, C63000, C64200, C65500, C67300, C67400 | B124, B16, B98, B138, B139, B196, B301 | Round: 1/8" - 6" (3mm - 150mm) Dia. Flat Bar: 1/4" - 12" (6mm - 305mm) Wide |
N/A for Rounds | 12ft - 20ft (3.6m - 6m) Standard | Drawn (Bright), Turned & Polished, Hot Rolled, Sand Blasted |
| Copper Wire | C10100, C10200, C11000, C11300, C11400, C11600, C15500, C16200, C21000, C22000, C23000, C26000, C27000, C51000, C52100, C54400, C63000, C77000 | B1, B2, B3, B105, B134, B159, B197 | 0.010" - 0.500" (0.25mm - 12.7mm) Dia. | N/A | Coils: 1lb to several thousand lbs | Bare (Bright), Annealed (Soft), Tin-Plated, Nickel-Plated, Enameled |
| Copper Foil | C10100, C10200, C11000, C11300, C11400, C11600 | B370, B152 (Often follows IPC-4101) | 0.0005" - 0.010" (12µm - 250µm) | 18" - 48" (457mm - 1220mm) | Rolls: 500ft - 5000ft (150m - 1500m) | Electrodeposited (ED), Rolled & Annealed (RA), Double-Treat |
