Products Description
Our Advantages
1. Superior Heat Transfer Performance
Our copper-based tubing boasts excellent thermal conductivity, rapidly transferring heat from internal media such as water, refrigerant, and steam to the fins. This improves overall system efficiency and reduces operating costs.
2. High Fin Adhesion
Our Spirally Wound Fin Tube utilizes a cold-winding process, employing high-pressure mechanical force to plastically deform the fin roots against the copper tube surface, creating a tightly bonded structure with extremely low thermal resistance. This not only avoids issues like incomplete welds, solder corrosion, or high-temperature annealing that can occur during welding but also offers advantages such as high bonding strength, excellent vibration resistance, and long service life.
3. Strong Corrosion Resistance
We offer high-quality Cu-Ni alloys, such as C70600 and C71500, exhibiting strong resistance to seawater and saltwater corrosion, making them suitable for marine, near-shore, and desalination applications. Our Spirally Wound Fin Tube has passed salt spray tests, demonstrating stable operation in high-salinity coastal air, industrial acidic exhaust gases, and humid environments.
4. Surface Quality
Our finned tube base tubes undergo cold drawing and polishing, resulting in a smooth surface and reducing the risk of adhesion defects and scaling on the heat exchanger fins. Eddy current testing ensures the tubes are intact and free of cracks or defects.
5. High Pressure Resistance
Our tubes undergo hydrostatic pressure testing to ensure they meet specified operating pressures. Mechanical property testing reveals high tensile strength and good yield strength, resulting in superior pressure resistance. The spiral tension winding process does not damage the tubes, maintaining their structural integrity and allowing them to continue safely withstanding high pressure.
6. Customized Service
We offer a variety of copper materials and can customize materials, sizes, and surface treatments according to customer application requirements; we also provide customized heat dissipation design support.
application areas
- HVAC & Refrigeration: Air coolers, condensers, evaporators, etc.
- Power Generation: Boiler economizers, air preheaters, etc.
- Oil and Gas: Gas dehydration devices, heat recovery systems, etc.
- Marine and Offshore: Seawater-cooled heat exchangers, marine condensers, etc.
Chemical Composition
| Element | Cu (%) | Ni (%) | Fe (%) | Mn (%) | P (%) | Others |
|---|---|---|---|---|---|---|
| C12200 (DHP Copper) | 99.9 min | - | - | - | 0.015–0.040 | Trace |
| C70600 (Cu-Ni 90/10) | 88.6 | 10 | 1–1.8 | ≤1 | - | Trace |
| C71500 (Cu-Ni 70/30) | 69–71 | 29–31 | 0.4–1 | ≤1 | - | Trace |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
| C12200 (DHP Copper) | 205–250 | 65–100 | ≥ 35 | 40–50 |
| C70600 (Cu-Ni 90/10) | ~275 | ~105 | ≥ 30 | - |
| C71500 (Cu-Ni 70/30) | 300–350 | 130–150 | ≥ 30 | - |
Possible Alternative Grades
| Alternative Grades | Reasons |
| C11000 | It boasts the highest thermal and electrical conductivity among all copper grades. Suitable for heat exchangers requiring maximum heat transfer efficiency and low resistance. |
| 304 | It combines good corrosion resistance, strength, and cost. Used in high-pressure, high-temperature heat exchangers handling clean water, steam, and mild chemicals. |
| Titanium Grade 2 | It exhibits excellent corrosion resistance in seawater, brine, and high-chloride environments. Suitable for marine, shipboard, desalination, and corrosive chemical heat exchangers. |
Products Show
Testing Equipment
Factory Equipment
Pickling equipment
Products Package
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