YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Supply Ability | 1000 tons/month |
| Delivery Time | 35-60 days |
| Packaging Details | Ply-wooden Case With Iron Frame |
| Finned Tubes Type | Low Fin Tubes / Integral Fin Tubes |
| Low Fin Tubes Standard | ASME SB111 |
| Low Fin Tubes Material | C68700 Tube |
| Size and Length | According to clients' requirement |
| Packing | Ply-wooden Case With Iron Frame |
| Use | For large equipment, Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators, etc |
| Brand Name | Yuhong |
| Model Number | ASME SB111 C68700 |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | TT, LC | Supply Ability | 1000 tons/month |
| Delivery Time | 35-60 days | Packaging Details | Ply-wooden Case With Iron Frame |
| Finned Tubes Type | Low Fin Tubes / Integral Fin Tubes | Low Fin Tubes Standard | ASME SB111 |
| Low Fin Tubes Material | C68700 Tube | Size and Length | According to clients' requirement |
| Packing | Ply-wooden Case With Iron Frame | Use | For large equipment, Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators, etc |
| Brand Name | Yuhong | Model Number | ASME SB111 C68700 |
| Certification | ABS, BV, DNV, CCS, LR | Place of Origin | China |
| High Light | ASME SB111 C68700 aluminum brass condenser tubes ，low fin tubes for condensers ，integral fin tubes aluminum brass | ||
ASME SB111 C68700 Aluminum Brass Condensers Low Fin Tubes / Integral Fin Tubes
Seamless copper alloy heat transfer tubes manufactured in accordance with ASME SB111 (ASTM B111), made from UNS C68700 aluminum brass, with integrally formed low fins on the outer surface.They are mainly used in condensers and heat exchangers to improve heat transfer efficiency while providing excellent resistance to seawater corrosion and dezincification.
Design Features
Fins:The fins are typically spaced apart and have a low height, which minimizes flow resistance while still providing significant surface area for heat transfer.Typically constructed from materials such as carbon steel, stainless steel, alloy or copper, providing durability and resistance to corrosion.
Detailes of ASTM B111/ASME SB111 Base Tubes
Chemical Composition (%) Aluminum Brass
| 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 | Standard | Tensile Strength,min | Yield Strength (0.2%Offset,min) |
| C68700 | O61 | 50ksi | 18ksi |
Application ( Not limited to the following )
Steam condensers for thermal power plants, nuclear power plants, and coastal power stations using seawater cooling.
Main engine condensers, central cooling systems, seawater coolers, and auxiliary heat exchangers for ships and offshore platforms.
Heat transfer tubes for MSF (Multi‑Stage Flash) and MED (Multi‑Effect Distillation) desalination plants.
Water‑cooled condensers and evaporators for industrial refrigeration and central air conditioning.
Specifications For Various Types Of Finned Tubes
Our finned tubes include the following types,and we can make sure that fin tubes we produced with highest quality and manufacturing standards.
| Type | Description | Base tube | Fin specification (mm) | ||
| O.D. (mm) | Fin pitch | Fin height | Fin thick | ||
| Embedded | G-type fin tube | 16-63 | 2.1-5 | <17 | ~0.4 |
| Extruded | Single metal / Combined metal | 8-51 | 1.6-10 | <17 | 0.2-0.4 |
| Low fin tube / T-type fin tube | 10-38 | 0.6-2 | <1.6 | ~0.3 | |
| Bamboo tube / corrugated tube | 16-51 | 8-30 | <2.5 | ~0.3 | |
| Wound | L / KL / LL type fin tube | 16-63 | 2.1-5 | <17 | ~0.4 |
| String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
| U-type | U-type fin tube | 16-38 | / | / | / |
| Welding | HF-welding fin tube | 16-219 | 3-25 | 5-30 | 0.8-3 |
| H/HH type fin tube | 25-63 | 8-30 | <200 | 1.5-3.5 | |
| Serrated spiral fin tube | 25-219 | 2-7 | <38.1 | 0.9-2.0 | |
| Studed fin tube | 25-219 | 8-30 | 5-35 | φ5-20 | |
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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