Copper Alloy Heat Exchanger Tube

Henan Gnee New Material Co., Ltd. is one of the most professional manufacturers and suppliers of copper alloy heat exchanger tube in China, specialized in providing high quality copper products with competitive price. Welcome to buy discount copper alloy heat exchanger tube for sale here from our factory. Customized orders are welcome.

 

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Choosing the wrong heat exchanger tube material is the fastest way to corrosion. We stock 5 primary alloys under ASME SB111 and ASTM B111 specifications to match your fluid chemistry and temperature profile.

 

Alloy / Standard	Key Feature	Best Application Scenarios
ASTM B111 C12200 (Phosphorus Deoxidized Copper)	The gold standard for thermal conductivity.	heat exchanger hvac heat exchanger boiler (clean water) copper tube heat exchanger units
ASTM B111 C44300 (Admiralty Brass)	Inhibited arsenic content prevents dezincification.	heat exchanger condenser units facing brackish water.
ASTM B111 C68700 (Aluminum Brass)	Superior resistance to high-velocity seawater.	shell tube evaporator systems High-flow seawater cooling.
ASTM B111 C70600 (Cu-Ni 90/10)	Handles moderate seawater corrosion.	Naval & marine copper tubing heat exchanger systems.
ASTM B111 C71500 (Cu-Ni 70/30)	Extreme corrosion resistance for harsh marine environments.	u tube condenser units High-temperature sour service.

International Compliance: We also comply with EN 12451 and JIS H3300 standards for global projects.

 

We supply straight copper tubes, U-bent tubes, finned tubes and complete tube bundles for condensers, evaporators, boilers and HVAC heat exchangers. Custom dimensions and ready-to-install assemblies are available.

 

 

 

Inspection Item	Purpose
100% Eddy Current Testing	Detect surface and subsurface defects in every tube
Hydrostatic Pressure Testing	Verify pressure resistance and leakage integrity
Positive Material Identification (PMI)	Confirm alloy composition and material consistency
Chemical Composition Analysis	Ensure compliance with ASTM B111 requirements
Dimensional Inspection	Control OD, wall thickness and length tolerances
Surface Quality Inspection	Ensure smooth and defect-free tube surfaces
Mill Test Certificate (EN 10204 3.1)	Provide full material traceability
Heat Number Traceability	Track each production batch from raw material to shipment
ASTM / ASME Compliance Verification	Ensure conformity with applicable standards
Final Visual Inspection	Verify appearance and packing before delivery

 

Packaging Stage	Material / Method	Purpose
Individual Tube Protection	Anti-rust VCI paper + plastic end caps	Prevents moisture, dust, and scratches on copper tube heat exchanger inner surfaces.
Bundling	Nylon straps + wooden spacers	Keeps copper heat exchanger tube OD 19mm, 1 inch, or 5/8 inch sizes organized and vibration-free.
Moisture Barrier	Thick PE film wrap (heat-shrunk)	Blocks humidity during long sea voyages to copper heat exchanger tube Germany or Saudi Arabia.
Outer Packing	Export-grade plywood cases or steel-banded wooden crates	Withstands stacking and rough handling. Each crate labeled with PO number, alloy (e.g., SB111 C70600), and quantity.
Documentation	Packing list + Mill Test Certificate (MTC) attached outside	Customs clearance support for copper heat exchanger tube stockist and distributor partners.

For U-Bundle Orders: U tube heat exchanger and U tube bundle heat exchanger are placed in dedicated steel jigs inside the crate to prevent bending radius distortion.

 

 

Equipment Type	Specification / Capability	Quality Impact
Horizontal Continuous Casting Line	10-ton capacity	Produces homogeneous copper alloy tube for heat exchanger billets with zero porosity.
Three-Roll Piercing Mill	Up to 60mm OD	Precision wall thickness control for heat exchanger tube wall thickness as low as 0.5mm.
Cold Drawing Bench	5 draws in sequence	Achieves tight tolerances on copper heat exchanger tube length and heat exchanger pipe diameter.
Straightening & Cutting Line	CNC servo-controlled	Burr-free cutting for copper heat exchanger tube 3/4 inch and 1 inch to exact project lengths.
U-Bending Machine	CNC mandrel type	Produces u tube condenser and U tube bundle heat exchanger without kinking or ovality.
Eddy Current Tester	NDT (Non-Destructive Testing)	100% inspection of C70600 tube and C71500 tube for pinholes or cracks per ASTM B111 pdf standards.
Hydrostatic Tester	Up to 200 bar	Validates heat exchanger tube expansion and tube rolling integrity.
Spectrometer	Optical emission (OES)	Confirms chemical composition of ASME SB111, EN 12451, and JIS H3300 grades on every batch.

 

Our Certifications & Compliance:

ASTM B111 pdf and ASME SB111 pdf full traceability.

ISO 9001:2015 quality management system.

Third-party inspection accepted: SGS, BV, Lloyds, or TUV.

Copper heat exchanger tube life expectancy testing reports available upon request.

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Q1: What is a copper heat exchanger tube and why use copper in a heat exchanger?
A: A copper tube heat exchanger utilizes copper's superior thermal conductivity (nearly 8 times higher than aluminum and much higher than steel). We use copper because it transfers heat rapidly, resists bio-fouling naturally, and is highly ductile, making it easy to fabricate into complex bundles.

 

Q2: Copper heat exchanger tube vs cupronickel: What's the difference?
A: Standard copper (like C12200) is excellent for freshwater. Cupronickel (90/10 or 70/30) adds nickel and iron, significantly increasing its resistance to high-velocity seawater and localized corrosion. Cupronickel is the standard for marine condensers.

 

Q3: How to clean and maintain a copper heat exchanger tube?
A: To maximize copper heat exchanger tube life expectancy, avoid highly abrasive mechanical cleaning. Use chemical cleaning with weak acids (like sulfamic or citric acid) equipped with copper inhibitors, followed by high-pressure water jetting to remove internal scale and fouling without damaging the passive oxide layer.

 

Q4: Are there concerns about copper heat exchanger tube corrosion?
A: While highly durable, improper water chemistry (e.g., high ammonia, sulfur, or excessive water velocity) can cause erosion-corrosion. Selecting the right alloy (like Admiralty Brass or Cupronickel) and controlling tube fluid velocity effectively mitigates these issues.

 

Q5: How to bend or weld a copper heat exchanger tube?
A: For bending, we use CNC rotary draw bending with internal mandrels to maintain wall thickness, crucial for a u tube heat exchanger. For joining, brazing with silver-based alloys is standard. If you need to know how to weld copper heat exchanger tube to a tubesheet, TIG welding is commonly used for cupronickel alloys, requiring specific filler metals and shielding gases.

 

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