ASTM B111 C68700 Seamless Tube Copper Alloy Tube For Heat Exchanger
ASTM B111 C68700 Seamless Tube Copper Alloy Tube For Heat Exchanger
ASTM B111 C68700 is a specification for aluminum brass tubes, known for their excellent corrosion resistance and strength. This alloy is generally composed of copper, zinc, and aluminum, providing a balance of durability and performance in challenging environments.
It has Good heat transfer capabilities make it suitable for heat exchanger applications, Superior resistance to seawater and dezincification and Resists biofouling in marine environments.
Chemical Composition:
| Grade | Cu | Zn | Al | As |
| C68700 | 76.0-79.0% | 20.0-22.0% | 1.8-2.5% |
0.02-0.06% (to inhibit dezincification) |
Mechanical Properties:
| Grade | Yield Strength | Tensile Strength | Elongation | Hardness |
| C68700 | Typically around 105-125 MPa | Approximately 310-380 MPa | 30-45% in 50 mm | 80-100 HRB |
Applications:
ASTM B111 C68700 is widely used in various industries due to its excellent corrosion resistance and mechanical properties. Here are some detailed applications:
1. Marine Industry
- Heat Exchangers and Condensers:Ideal for shipbuilding and offshore platforms due to resistance to seawater corrosion.
- Seawater Piping Systems:Provides durability and longevity in marine environments.
2. Power Plants
- Cooling Systems:Utilized in power plants for cooling water systems and heat exchangers, especially in coastal areas.
- Condensers:Effective in steam turbine condensers, benefiting from its thermal conductivity.
3. Desalination Plants
- Evaporator and Condenser Tubes:Essential in desalination processes where resistance to aggressive saline solutions is required.
4. Chemical Processing
- Heat Exchangers:Used in chemical plants where resistance to corrosive chemicals and high temperatures is necessary.
5. Oil and Gas Industry
- Offshore Platforms:Suitable for various components exposed to harsh marine environments, reducing maintenance needs.
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