Copper Nickel Condenser Tubes

Seawater-resistant CuNi tubes for condensers, heat exchangers, marine cooling and desalination applications

DLSS Products Copper Nickel Condenser Tubes

Copper Nickel Condenser Tubes Supplier

DLSS supplies copper nickel condenser tubes designed for seawater cooling, marine condensers, power plant condensers, desalination systems and industrial heat exchangers.

Copper nickel alloys such as C70600 90/10 and C71500 70/30 provide excellent resistance to seawater corrosion, biofouling and long-term operation in marine environments.

Applications:
Marine condensers, seawater cooling systems, power plant condensers, desalination plants, shipbuilding and offshore equipment

Standards:
ASTM B111 / ASME SB111 / ASTM B466 / ASME SB466

Materials:
C70600 90/10 CuNi / C71500 70/30 CuNi

Production Capability:
Seamless tubes / straight tubes / cut length / customized size / condenser tube supply

Quality Assurance:
PMI, chemical composition testing, hydrostatic testing, eddy current testing, dimensional inspection and EN10204 3.1 / 3.2 certification

Copper Nickel Condenser Tube Specifications

Technical specifications for CuNi condenser tubes used in seawater cooling and marine heat exchanger systems

Item	Specification
Product Name	Copper Nickel Condenser Tubes
Main Grades	C70600 90/10 CuNi / C71500 70/30 CuNi
Standards	ASTM B111 / ASME SB111 / ASTM B466 / ASME SB466
Tube Type	Seamless / Straight / Cut Length / Condenser Tubes
Outside Diameter	6 mm – 76.2 mm or customized
Wall Thickness	0.5 mm – 5 mm or customized
Length	Fixed length / Random length / Cut length
Surface Finish	Bright / Clean / Pickled / Polished
Testing	Chemical Analysis / PMI / Hydro Test / Eddy Current / Dimensional Inspection
Certificate	EN10204 3.1 / 3.2 / Third-party Inspection
Application	Condenser / Marine Cooling / Power Plant / Desalination / Shipbuilding
Delivery Time	7–35 days depending on grade, size and quantity
Packing	Export wooden case / Iron frame / Seaworthy packing

Copper Nickel Grades We Supply

Choose the right CuNi grade according to seawater condition, corrosion requirement and project application

C70600 / 90-10 Copper Nickel

C70600 90/10 copper nickel is widely used for seawater condenser tubes, marine heat exchangers and cooling systems.

✓ Good seawater corrosion resistance
✓ Suitable for marine condensers
✓ Commonly used in shipbuilding and power plants
✓ Cost-effective CuNi tube solution

C71500 / 70-30 Copper Nickel

C71500 70/30 copper nickel provides higher nickel content and stronger performance in more demanding seawater environments.

✓ Higher corrosion resistance than 90/10 CuNi
✓ Suitable for aggressive seawater conditions
✓ Used in marine and offshore applications
✓ Long service life in condenser systems

Custom Copper Nickel Tube Solutions

DLSS supports custom copper nickel condenser tube solutions according to project drawings, standards and inspection requirements.

✓ Custom OD / WT / length
✓ Small quantity support
✓ Third-party inspection available
✓ Special export packing for long-distance shipment

Typical Applications of Copper Nickel Condenser Tubes

Designed for seawater cooling, marine condensers and long-term corrosion-resistant operation

Marine Condensers

Copper nickel condenser tubes are widely used in marine heat exchangers and ship cooling systems where seawater corrosion resistance is critical.

✓ Seawater corrosion resistance
✓ Good biofouling resistance
✓ Reliable heat transfer performance
✓ Suitable for shipbuilding and marine service

Power Plant Condensers

CuNi tubes are used in power plant condensers, surface condensers and cooling systems requiring long-term stable operation.

✓ Stable condenser performance
✓ Suitable for cooling water systems
✓ Long service life
✓ Reliable tube-to-tubesheet fitting

Desalination Systems

Copper nickel tubes are suitable for desalination plants and seawater evaporator systems where corrosion resistance and thermal performance are required.

✓ Suitable for seawater desalination
✓ Good resistance in brine environments
✓ Long maintenance cycle
✓ Ideal for Middle East seawater projects

Offshore & Seawater Cooling

CuNi condenser tubes are used in offshore platforms, seawater cooling systems and marine equipment exposed to chloride environments.

✓ Offshore project suitability
✓ Seawater cooling reliability
✓ Strong export packing support
✓ Full certification and inspection support

Copper Nickel Condenser Tube Project Cases

Proven supply experience for marine, power plant, desalination and condenser projects

C70600 Tubes for Marine Condenser Project

Material: C70600 / 90-10 CuNi Standard: ASTM B111 Application: Marine Condenser Inspection: Eddy Current / Hydro Test / Dimensional Inspection ✓ Good seawater corrosion resistance ✓ Stable OD tolerance for tube sheet fitting ✓ Full MTC traceability ✓ Strong seaworthy packing

C71500 Tubes for Power Plant Condenser

Material: C71500 / 70-30 CuNi Application: Power Plant Condenser Inspection: PMI / Hydro Test / Eddy Current Test ✓ Higher corrosion resistance ✓ Long-term condenser performance ✓ Suitable for demanding cooling water systems ✓ Third-party inspection support

Copper Nickel Tubes for Desalination System

Material: C70600 / C71500 Application: Desalination / Seawater Evaporator Inspection: Chemical Analysis / ET / Hydro Test ✓ Suitable for seawater and brine environment ✓ Export packing for long-distance shipment ✓ Flexible delivery for project schedule ✓ Full documentation support

Send your specifications – we will respond within 24 hours

Customized Copper Nickel Tube Solutions For Your Project

Flexible support for marine equipment manufacturers, condenser manufacturers, EPC contractors and stockists

For Condenser Manufacturers

Stable tube quality, precise tolerance and reliable delivery for condenser and heat exchanger production.

For EPC Contractors & Project Buyers

Technical confirmation, documentation and delivery support for seawater cooling and power plant projects.

For Stockists & Distributors

Flexible MOQ and stable supply to support copper nickel tube inventory and local market development.

Tight OD & WT tolerance

Fast RFQ response

Flexible quantity support

Custom cut length

Third-party inspection arrangement

Common C70600 / C71500 grades

Tube sheet fitting support

Full export documentation

Custom marking available

Full inspection before shipment

Project delivery tracking

Strong export packing

Tell us your project requirements – we will recommend the best tube solution within 24 hours.

Strict Quality Control For Copper Nickel Condenser Tubes

Every tube is inspected to ensure material accuracy, dimensional precision and condenser performance

Material & Dimensional Inspection

PMI and spectrometer testing ensure correct material grade and dimensional accuracy.

Ring Gauge Inspection

Ensures dimensional accuracy and proper tube fitting.

Hydrostatic Pressure Testing

Verifies strength and leak-proof performance under pressure.

Penetrant Testing (PT)

Detects surface cracks and defects effectively.

Borescope Inspection

Ensures internal surface quality and detects inner defects.

Visual Inspection

Checks external surface quality and appearance.

All tubes are inspected according to ASTM, ASME, EN standards and customer requirements.

Frequently Asked Questions

Common questions about copper nickel condenser tubes

What are copper nickel condenser tubes used for?

Copper nickel condenser tubes are mainly used in marine condensers, power plant condensers, seawater cooling systems, desalination plants, shipbuilding and offshore equipment.

What is the difference between C70600 and C71500?

C70600 is a 90/10 copper nickel alloy, while C71500 is a 70/30 copper nickel alloy. C71500 contains higher nickel content and is usually selected for more demanding seawater or corrosion conditions.

Which standard is commonly used for copper nickel condenser tubes?

ASTM B111 / ASME SB111 is commonly used for copper and copper alloy seamless condenser tubes. ASTM B466 / ASME SB466 may also be used depending on project requirements.

Can copper nickel tubes be used in seawater systems?

Yes. Copper nickel tubes are widely used in seawater cooling, marine condensers, desalination and offshore applications due to their seawater corrosion resistance and biofouling resistance.

What tests can DLSS provide?

DLSS can provide chemical composition inspection, PMI testing, hydrostatic testing, eddy current testing, dimensional inspection, visual inspection and third-party inspection according to project requirements.

Can you supply custom sizes and small quantities?

Yes. DLSS supports custom OD, wall thickness, length, small MOQ, project trial orders and export packing according to customer requirements.

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Need Copper Nickel Condenser Tubes For Your Project?

Send us your material grade, tube size, standard, quantity or project drawings.

Our technical team will help you confirm the most suitable copper nickel tube solution for your seawater cooling, condenser or marine project.

Fast technical response within 24 hours