ASTM B111 C71500 Cu-Ni 70/30 Low Finned Tube For Marine And Offshore Systems Bare Tube OD 10-38mm

ASTM B111 C71500 (Cu-Ni 70/30) Low Finned Tube For Marin and Offshore Systems

ASTM B111 C71500 Low Finned Tube is a high-performance copper-nickel (Cu-Ni) alloy heat exchanger tube designed for enhanced corrosion resistance and heat transfer efficiency in demanding environments. Here’s a detailed breakdown:

1. Material ASTM B111 C71500:

(1) Chemical Composition (ASTM B111 C71500)

Notes:

C71500 = 70/30 Cu-Ni: Superior to 90/10 Cu-Ni (C70600) in corrosive environments.

Low impurities ensure stability in marine/chemical applications.

(2) Mechanical Properties (ASTM B111 C71500)

Additional Properties:

Corrosion Resistance: Exceptional in seawater, brackish water, and acidic/alkaline fluids.

Biofouling Resistance: Inhibits marine organism growth.

Temperature Range: -196°C to +260°C (cryogenic to moderate high-temp use).

Comparison with Common Alternatives

2. Low Finned Tube Design

Fins: Integral, externally machined fins (typically 0.8–1.5 mm height) to increase surface area.

Purpose: Optimizes heat transfer in compact spaces while resisting fouling and corrosion.

3.The key features of ASTM B111 C71500 (Cu-Ni 70/30) Low Finned Tubes1. Superior Corrosion Resistance:

• Superior Corrosion Resistance
• Enhanced Heat Transfer Efficiency
• Mechanical Strength & Durability
• Biofouling & Erosion Resistance

ASTM B111 C71500 (Cu-Ni 70/30) Low Finned Tubes are engineered for extreme environments where corrosion resistance, biofouling prevention, and thermal efficiency are critical. Their 70/30 copper-nickel composition and finned design make them ideal for:

1. Marine & Offshore Systems

• Seawater Coolers/Condensers: Resists saltwater corrosion, erosion, and biofouling in ships, submarines, and offshore oil rigs.
• Desalination Plants: Used in multi-stage flash (MSF) and reverse osmosis (RO) evaporators due to tolerance for high-salinity brine.

2. Oil & Gas Industry

• LNG Heat Exchangers: Withstands cryogenic temperatures in liquefied natural gas processing.
• Refinery Coolers: Handles sour gas (H₂S) and acidic fluids in crude oil refining.

3. Power Generation

• Nuclear Plant Condensers: Resists corrosion in brackish or contaminated cooling water.
• Coastal Power Stations: Preferred over carbon steel in saltwater-cooled condensers.

4. Chemical Processing

• Acid/Alkali Heat Exchangers: Suitable for dilute sulfuric, hydrochloric, and caustic solutions (avoid oxidizing acids like nitric acid).
• Petrochemical Coolers: Used in ethylene and ammonia production systems.

5. Industrial HVAC & Renewable Energy

• Coastal HVAC Systems: Air-cooled condensers in corrosive seaside environments.
• Geothermal Plants: Resists mineral-laden geothermal brine.

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.