Copper Finned Tube For Heat Exchanger

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of copper finned tube for heat exchanger in China, also supports customized service. Welcome to buy discount copper finned tube for heat exchanger for sale here from our factory. Quality products and reasonable price are available.

 

When your shell and tube heat exchanger needs higher heat transfer density, a copper finned tube is the most efficient solution. By adding fins to the outside surface, you can achieve 2 to 10 times the heat transfer area compared to a bare tube, using the same shell diameter.

 

We manufacture copper finned tube for heat exchanger applications including heat exchanger hvac units, heat exchanger air coolers, heat exchanger condenser systems, and shell tube evaporator assemblies. Our finned tubes are produced as integral low fin tubes, high fin tubes, and extruded fin tubes depending on your duty requirements.

 

Available in ASTM B111, ASME SB111, EN 12451, and JIS H3300 copper alloys including C12200, C70600, and C71500. Each copper finned tube comes with full mill test certificates and 100% eddy current testing of the base tube before finning.

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The answer is simple: cost per unit of heat transfer. A copper finned tube for heat exchanger allows you to design a smaller, lighter, less expensive shell and tube heat exchanger for gas-to-liquid or air-to-refrigerant duties.

 

Bare tube limitations:

Low heat transfer coefficient on the gas or air side

Large shell diameter required for sufficient surface area

Higher material and fabrication cost

Larger footprint in your plant or equipment room

 

Copper finned tube advantages:

2x to 10x the surface area per linear meter

Smaller shell diameter reduces weight and cost

Higher overall heat transfer coefficient

Compact design for heat exchanger hvac and heat exchanger air systems

 

Common applications for our copper finned tube for heat exchanger include:

heat exchanger condenser units in air conditioning

heat exchanger boiler economizers

shell tube evaporator systems for refrigeration

heat exchanger car radiators and charge air coolers

Dry coolers and air-cooled heat exchangers

 

If you are comparing copper finned tube vs bare tube for a gas cooling application, the finned tube will almost always win on total installed cost.

 

Not all copper finned tube for heat exchanger products are the same. The fin type affects heat transfer performance, fouling tendency, and cleanability.

Fin Type	Manufacturing Method	Fin Dimensions	Typical Application	Key Advantage
Integral Low Fin (L-Type)	Rolled from base tube wall (no separate material)	Height: 1.0-1.6mm Density: 16-40 fins/inch	heat exchanger condenser, evaporator, boiler feedwater heaters	No galvanic corrosion, no bond line to fail, no fouling at fin root
High Fin (G-Type / Extruded)	Extruded from copper sleeve over base tube	Height: up to 16mm Density: 8-11 fins/inch	Air-cooled heat exchanger hvac, dry coolers, heat exchanger air systems	Maximum surface area for air or flue gas duty
Enhanced Surface (E-Type)	Complex multi-start finning process	Height: 0.5-1.0mm Density: 26-52 fins/inch	Flooded evaporators, chiller bundles, shell tube evaporator	Nucleate boiling enhancement, not just surface area increase

All three types are available in C12200 for clean water and refrigerant service, and C70600 or C71500 for seawater or corrosive shell-side fluids.

Submit Your Custom Requirements

The base tube material for your copper finned tube for heat exchanger must resist corrosion on both the tube side and shell side. We offer the same ASTM B111 alloys used for bare tubes, with additional formability requirements for fin rolling.

Alloy	Common Name	Best Application	Corrosion Resistance	Fin Rollability
ASTM B111 C12200	Phosphorus Deoxidized Copper	heat exchanger hvac, refrigerant, clean water	Good for clean water and air	Excellent (most ductile)
ASTM B111 C70600	Copper Nickel 90/10	Marine heat exchanger condenser, shell tube evaporator with seawater shell side	Excellent for seawater	Good
ASTM B111 C71500	Copper Nickel 70/30	Severe corrosion service, sour gas, high-temperature seawater	Maximum for copper alloys	Fair (requires specialized equipment)
ASTM B111 C44300	Admiralty Brass	Brackish water, moderate dissolved solids	Good for brackish water	Fair
ASTM B111 C68700	Aluminum Brass	High-velocity seawater (above 1.5 m/s)	Good for erosion resistance	Fair

Alloy selection for a copper finned tube for heat exchanger also affects copper heat exchanger tube corrosion resistance. Contact our engineering team for a recommendation based on your shell-side and tube-side fluids.

 

Base Tube Dimensions (Before Finning)

Parameter	Range	Common Stock Sizes
Base OD	12mm to 38mm	5/8 inch (15.88mm), 3/4 inch (19.05mm), 1 inch (25.4mm)
Wall Thickness	0.8mm to 2.5mm	1.0mm, 1.2mm, 1.5mm
Tube Length	1m to 30m	6m, 9m, 12m (cut to length available)

 

Integral Low Fin Tube Dimensions (After Finning)

Parameter	Typical Value
Fin OD	Base OD + 1.2mm to 2.0mm
Fin Height	0.6mm to 1.0mm (above base tube)
Fin Pitch	0.6mm to 1.6mm (16 to 40 FPI)
Fin Thickness at Tip	0.2mm to 0.4mm

 

High Fin Tube Dimensions (Extruded)

Parameter	Typical Value
Fin OD	Base OD + 8mm to 16mm
Fin Height	4mm to 8mm
Fin Pitch	2.3mm to 3.2mm (8 to 11 FPI)
Fin Thickness	0.3mm to 0.5mm

For copper heat exchanger tube od 19mm base tube with integral fins, the finished fin OD is approximately 21mm. This allows more tubes in the same tube sheet compared to a larger bare tube.

 

A copper tube heat exchanger calculation for finned tubes is more complex than for bare tubes. The fin efficiency, surface area ratio, and contact resistance all affect overall performance.

 

Key parameters for finned tube calculation:

Base tube OD and wall thickness

Fin height, fin thickness, and fins per inch

Fin material (same as base tube for integral fins)

Tube-side fluid properties (water, refrigerant, oil)

Shell-side fluid properties (air, flue gas, seawater)

 

Simplified approach:

Calculate bare tube outside surface area per meter

Multiply by surface area ratio (typically 3 to 10 for finned tubes)

Multiply by fin efficiency (0.7 to 0.95 depending on fin geometry and material)

Apply overall heat transfer coefficient for your fluids

 

For shell tube evaporator and heat exchanger condenser applications, finned tubes can increase the overall heat transfer coefficient by 2 to 4 times compared to bare tubes.

If you have a heat exchanger hvac or heat exchanger air duty, send us your process conditions. We will provide a preliminary finned tube selection and performance estimate.

Get Free Finned Tube Sizing

 

 What is a copper finned tube for heat exchanger?

A copper finned tube for heat exchanger is a tube with extended surface area (fins) on the outside diameter. The fins increase heat transfer between the tube wall and the shell-side fluid, especially when that fluid is a gas or air with low heat transfer coefficient.

 

How does a finned tube compare to a bare tube?

When comparing copper heat exchanger tube vs stainless steel or bare tube, the finned version provides 2 to 10 times the surface area per linear meter. For heat exchanger hvac and heat exchanger air duties, this means a much smaller shell and tube heat exchanger.

 

Where can I buy copper finned tubes for heat exchanger condenser units?

We are a direct copper heat exchanger tube factory serving copper heat exchanger tube USA, Europe, Germany, UAE, Saudi Arabia, and India. We ship finned tubes as straight lengths or pre-assembled into u tube bundle heat exchanger configurations.

 

What is the copper finned tube price compared to bare tube?

Copper finned tube price is higher per meter than bare tube because of the additional rolling or extrusion process. However, the cost per unit of heat transfer is usually lower because fewer finned tubes are required. For a copper heat exchanger tube cost per meter comparison, send us your bare tube and finned tube specifications.

 

Can I get a quote for copper finned tube for a shell tube evaporator?

Yes. Send us your tube sheet layout, bundle diameter, shell side fluid, and duty requirement. We will provide a firm get a quote for copper heat exchanger tube response within 24 hours including fin type, alloy, and pricing.

 

What standards do your finned tubes meet?

Our finned tubes start with ASTM B111 or ASME SB111 base tubes. The finning process follows industry standards including EN 12451 and JIS H3300. We provide ASTM B111 pdf and ASME SB111 pdf upon request.

 

How to weld or attach copper finned tubes to a tube sheet?

How to weld copper heat exchanger tube with fins is not recommended near the finned section. For heat exchanger tube expansion or tube rolling, only the bare ends of the tube (typically 50mm to 100mm) should be inserted into the tube sheet. We supply finned tubes with bare ends specifically for this purpose.

 

What is the difference between integral fins and extruded fins?

Integral fins are rolled from the base tube wall – no separate material added. Extruded fins are formed from a copper sleeve over the base tube. For copper finned tube for heat exchanger in clean service, integral fins are preferred because there is no bond line to fail.

 

Poor packaging destroys even the best copper heat exchanger tube. As a professional copper heat exchanger tube factory serving copper heat exchanger tube USA, Europe, UAE, Saudi Arabia, and India, we follow military-grade export packaging standards to ensure zero damage during sea or air freight.

 

Our Standard Packaging Process:

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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