YUHONG HOLDING GROUP CO., LTD
| Low Fin Tube Material | ASTM B111 C68700 Copper Alloy Seamless Tubes |
| Fin Tubes Type | Low Fin Tube |
| Low Fin Tube Application | Surface condenser low fin tube bundles,seawater condensers,HVAC,etc. |
| Delivery Time | 35-45 days |
| Payment Terms | T/T,L/C |
| Supply Ability | 1000 tons/month |
| Low Fin Tube Packing | Ply-wooden Case With Iron Frame |
| Low Fin Tube Forming | Integral Rolling Forming |
| Packaging Details | Ply-wooden Case With Iron Frame |
| Low Fin Tube Size | By Costomers' Requirements |
| Model Number | Low Fin Tube |
| Brand Name | YUHONG |
| Place of Origin | China |
| Certification | ISO 9001-2015,ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS |
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Product Specification
| Low Fin Tube Material | ASTM B111 C68700 Copper Alloy Seamless Tubes | Fin Tubes Type | Low Fin Tube |
| Low Fin Tube Application | Surface condenser low fin tube bundles,seawater condensers,HVAC,etc. | Delivery Time | 35-45 days |
| Payment Terms | T/T,L/C | Supply Ability | 1000 tons/month |
| Low Fin Tube Packing | Ply-wooden Case With Iron Frame | Low Fin Tube Forming | Integral Rolling Forming |
| Packaging Details | Ply-wooden Case With Iron Frame | Low Fin Tube Size | By Costomers' Requirements |
| Model Number | Low Fin Tube | Brand Name | YUHONG |
| Place of Origin | China | Certification | ISO 9001-2015,ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS |
ASTM B111 C68700 Copper Alloy Low Fin Tube for Seawater Cooling Heat Exchangers
ASTM B111 C68700 seamless low-finned tubes are designed to increase heat exchange area. Their key advantages include excellent resistance to erosion/impact corrosion in high-velocity seawater and brackish water. The copper alloy material offers good thermal conductivity and natural resistance to biofouling. Due to its excellent expansion, bending, and weldability, it is also suitable for heat exchanger tube bundles. The low-fin design perfectly matches liquid-side cooling (seawater, brine) inside the tube and steam/gas cooling on the finned side outside the tube.
Chemical Composition (%)
| Grade | Copper | Aluminum | Lead | Iron |
Zinc |
Arsenic |
| C68700 | 76.0-79.0 | 1.8-2.5 | 0.07 | 0.06max | remainder | 0.02-0.06 |
Mechanical Properties
| Grade | Tensile Strength,min | Yield Strength (0.2%Offset,min) | Expansion |
| C68700 O61 | 50ksi (345MPa) | 18ksi (125MPa) | 20% |
Application ( Not limited to the following )
1.Power Generation Industry (Core Application)
Thermal Power Plants/Coastal Thermal Power Plants:
*Surface Condenser Low-Finned Tube Bundles.
*For circulating water heat exchangers in coastal brine-cooled hydroelectric power plants.
*Suitable for high-flow cooling water, effectively preventing impact corrosion of ordinary brass tubes.
Nuclear Power Plants (Coastal Units):
*Secondary Circuit Seawater-Cooled Condenser, etc.
2.Offshore and nearshore oil and gas
Shipbuilding industry:
*Main engine seawater condensers, auxiliary steam condensers.Freshwater generator distillation tubes, air conditioning evaporators.
Offshore platforms/FPSO/FPU:
*Seawater cooling heat exchangers, crude oil coolers, ethylene glycol coolers, gas scrubber condensers.
Low-finned tubes reduce shell size while resisting erosion from high-velocity, sand-laden seawater.
3. Seawater Desalination Plants
*Distillation Evaporator and Condenser Heat Exchange Sections
*Post-treatment Brine Cooling Heat Exchangers
Main Advantages: Resistant to high-concentration brine corrosion and high lateral flow velocity erosion; longer service life than ordinary copper tubes
4. Petrochemical and Refining Industries
*Low-finned Condensers for Sulfur Recovery Units
5. HVAC, District Cooling, and Industrial Refrigeration
*Evaporators/Condensers for Large Industrial Chiller Units (Using seawater or brackish water)
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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