CU-NI 90/10 SEAMLESS TUBE ASME SB111 C70600 O61 COPPER NICKEL ALLOY
CU-NI 90/10 SEAMLESS TUBE ASME SB111 C70600 O61 COPPER NICKEL ALLOY
Overview
B111 C70600 is a copper-nickel alloy that is commonly used in marine applications due to its excellent corrosion resistance in seawater. A seamless tube made from this alloy would be suitable for use in heat exchangers, condensers, and other applications where corrosion resistance is important. Seamless tubes are typically preferred over welded tubes for high-pressure or high-temperature applications, as they are able to withstand higher levels of stress without risk of leaks.
C70600 is a versatile copper-nickel alloy with a combination of good mechanical properties, corrosion resistance, and thermal conductivity, making it suitable for a wide range of applications in marine and industrial environments.
Some of the characteristics of C70600 include:
- Good corrosion resistance: C70600 has excellent resistance to corrosion in seawater and marine environments, making it suitable for use in marine applications such as shipbuilding, offshore platforms, and desalination plants.
- High strength: C70600 has good mechanical properties, including high tensile strength and hardness, making it suitable for use in high-stress applications.
- Good thermal conductivity: C70600 has a high thermal conductivity, making it suitable for use in heat exchangers and other applications where efficient heat transfer is important.
- Good weldability: C70600 can be easily welded using conventional welding techniques, making it easy to fabricate and repair.
- Resistance to biofouling: C70600 has good resistance to biofouling, making it suitable for use in applications where marine organisms may attach to the surface of the material.
- Non-magnetic: C70600 is non-magnetic, making it suitable for use in applications where magnetic interference is a concern.
- Good machinability: C70600 can be easily machined using standard machining techniques, making it easy to work with and fabricate.
Specification:
ASTM B111/B111M Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes
| UNS No. | C70600 – BSI No. CN102 – ISO Name CuNi10Fe1Mn |
| Chemical % | 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 | Condenser, Evaporator and Heat Exchanger tubes; Distiller tubing; Salt Water piping. |
| Temper | O61 Annealed / H55 Light-Drawn |
Chemical Composition
|
Elements |
||||||
|
Cu |
Pb |
Zn |
Fe |
Ni |
Mn |
|
|
Min (%) |
|
|
|
1.0 |
9.0 |
|
|
Max (%) |
Rem |
0.05 |
1.0 |
1.8 |
11.0 |
1.0 |
Mechanical Properties
| 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 |
Application:
- Underwater tubing
- Heat exchangers
- Marine hardware
- Nuclear industry
- Water treatment
- Chemical industry
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