YUHONG HOLDING GROUP CO., LTD
YUHONG HOLDING GROUP CO., LTD
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DHP Copper Alloy ASTM B111 C12200 Low Finned Tube For Condenser and Evaporator
ASTM B111 C12200 Low Finned Tube is a type of copper alloy heat exchanger tube designed for enhanced heat transfer efficiency. Here’s a detailed breakdown:
1. Material ASTM B111 C12200
(1) Chemical Composition (ASTM B111 C12200)
| Element | Composition (% by Weight, max unless specified) |
| Copper (Cu) | 99.9% min (including silver) |
| Phosphorus (P) | 0.015% – 0.040% |
| Lead (Pb) | 0.005% max |
| Iron (Fe) | 0.005% max |
| Antimony (Sb) | 0.002% max |
| Sulfur (S) | 0.005% max |
| Others (Total) | 0.1% max |
Notes:
(2) Mechanical Properties (ASTM B111 C12200)
| Property | Value |
| Tensile Strength (min) | 220 MPa (32,000 psi) |
| Yield Strength (0.5% offset, min) | 69 MPa (10,000 psi) |
| Elongation (min, in 50mm) | 40% (for annealed tubes) |
| Hardness (Rockwell F, annealed) | ~40 HRF |
| Thermal Conductivity | ~390 W/m·K (at 20°C) |
| Electrical Conductivity | ~98% IACS |
Notes:
Advantages of ASTM B111 C12200:
2. Low Finned Tube Design
Purpose: Enhances heat exchange in applications like:
Air-cooled condensers
Refrigeration systems
Power plant heat exchangers
3. Key Features of ASTM B111 C12200 Low Finned Tubes
ASTM B111 C12200 (DHP Copper) Low Finned Tubes are widely used in applications where efficient heat transfer, corrosion resistance, and durability are critical. Their low fins increase surface area, enhancing heat exchange while maintaining compactness. Here are the key applications:
1. Power Plants & Energy Systems
Condensers & Heat Exchangers: Used in steam condensers, feedwater heaters, and turbine cooling systems due to high thermal conductivity and resistance to corrosion in water/steam environments.
Nuclear Power Plants: Suitable for secondary cooling systems because of their reliability in high-purity water.
2. HVAC & Refrigeration
Air-Cooled Condensers: The fins improve heat dissipation in chillers and refrigeration units.
Evaporators & Coolers: Efficient in both industrial and commercial cooling systems.
3. Oil & Gas / Petrochemical
Process Heat Exchangers: Used in refineries and gas processing plants where resistance to mild corrosive fluids is needed.
LNG (Liquefied Natural Gas) Systems: Effective in cryogenic heat exchangers due to copper’s ductility at low temperatures.
4. Marine & Desalination
Desalination Plants: Resists corrosion from seawater in multi-stage flash (MSF) and reverse osmosis (RO) systems.
Shipboard Condensers: Performs well in saltwater cooling applications.
5. Chemical & Industrial Processing
Acid/Chemical Coolers: Suitable for non-oxidizing environments (e.g., dilute sulfuric or phosphoric acid).
Breweries & Food Processing: Used where cleanliness and corrosion resistance are vital.
6. Renewable Energy
Geothermal Systems: Withstands mineral-laden water in heat recovery units.
Solar Thermal Plants: Helps transfer heat from concentrated solar power (CSP) systems.
