Copper Alloy Steel ASTM B111 C68700 Heat Exchanger Tube , Cooling Systems

The ASTM B111 C68700 copper alloy steel heat exchanger tube is a seamless tube made from a copper-nickel alloy (70% Cu, 30% Ni). This alloy is designed for use in heat exchangers, condensers, and cooling systems where high corrosion resistance (especially in seawater), strength, and thermal conductivity are critical. The C68700 copper-nickel alloy provides excellent performance in marine, chemical, petrochemical, and power generation applications, where heat exchange systems are exposed to harsh environments, including saltwater, brines, and corrosive fluids. The tube is also highly resistant to stress corrosion cracking and offers good mechanical strength, ensuring durability and long-term performance in demanding systems.

Chemical Composition:

Mechanical Properties:

Applications:

1. Marine Applications:Heat exchangers for cooling and temperature regulation in marine engines, shipboard HVAC systems, and offshore platforms.Condensers and evaporators in desalination plants where seawater is used as the primary medium for heat exchange.
2. Cooling Systems in Power Plants:Cooling towers and condensers in power plants, particularly those that use seawater or other corrosive cooling fluids.
3. Offshore Oil and Gas:Cooling systems for offshore drilling platforms and rigs, where high durability and resistance to corrosive seawater are needed.
4. Desalination Plants:Seawater desalination processes, where heat exchangers made from C68700 are used to separate salts from seawater by heating and condensation.
5. Chemical and Petrochemical Industries:Heat exchangers in chemical processing and refining industries, especially where fluids may be corrosive or where the temperature differences in heat exchange are significant.
6. Refrigeration and HVAC:Used in refrigeration systems where high resistance to corrosion and reliable heat transfer are critical, especially in systems exposed to moisture or chemicals.
7. Industrial Cooling:Employed in various industrial applications to cool machinery and systems that require efficient thermal management, such as in manufacturing plants, refineries, or large-scale air conditioning systems.

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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. The factories already got certificates like : ABS, LR, DNV-GL, BV, KR, CCS, ASME, ISO 9001, ISO14001, ISO18001, ect.

Our factories main products as below :
Factory 1th: Stainless steel seamless tube, Duplex steel seamless tube, Super duplex steel seamless tube, Nickel alloy steel seamless tube;

Factory 2th: Carbon steel seamless tube, Alloy steel seamless tube; Enhanced Heat Tranfer Tube, low fin tube ,U bending workshop;
Factory 3th: High frequency welding fin tube(HFW fin tube, Solid Fin tube, Studded Tube, Serrated Fin tube, Longitudinal welding fin tube), Wound fin tube(L type fin tube, LL type fin tube, KL type fin tube), Embedded G type fin tube , Extruded fin tube, low fin tube, U bend & 180deg. Return;

Yuhong Holding Group also has gained rich experience for project package( products contain:Pipes, Fittings, Flanges, heat exchanger, furnace, fired heater, air cooler, boiler) , YUHONG brand has marked its global presence in more than 85 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers as stockists around the world.