Bimetal extruded finned tube
Stainless steel base tube provides superior corrosion resistance and mechanical strength.
Aluminum fins are cold-extruded to form a strong mechanical bond.
No air gap between fin and tube ensures stable heat transfer performance.
Suitable for humid and mildly corrosive environments.
Long service life with low maintenance cost.
This fin configuration is manufactured from a bi-metallic tube, typically consisting of an outer tube made of aluminium or copper and an inner tube made from a wide range of possible base materials. During production, the outer tube material is plastically deformed and rolled outward to form a continuous integral fin structure along the entire length of the tube.
Because the fins are created directly from the outer tube material itself, the result is a highly durable integral fin that provides excellent thermal conductivity and long service life. The extrusion process also ensures very strong contact between the fin and the tube wall, minimizing thermal resistance and maximizing heat transfer efficiency.
Another important advantage of this design is that the outer aluminium or copper layer completely covers the base tube, providing effective corrosion protection for the inner tube material. Extruded fin tubes can be manufactured from either bi-metallic constructions or single-wall mono-metal tubes, depending on application requirements.
The maximum recommended operating temperature for extruded fin tubes is 280°C.
FAQ：
1. Are you manufacturer or trader?
We are titanium tube manufacturer producing from melting titanium sponge, extruding hollow billet, rolling to finished tubes and destructive test mechanical test, chemical analysis, non-destructive tests like Ultrasonic test, Eddy current test, Pneumatic test and hydrostatic test are available in house.
Beside titanium tube production line, we also have finning lines. Our factory is still expanding and will invest more on finning facilities.
2. How many workers are there in your factory?
Till 2026, we have 210 staffs.
3. How fast can you deliver the materials?
It depends on the size and quantity, the standard time is 45 days.
4. What is the payment term you can offer?
Standard term is 30% T/T in advance, balance before shipment. L/C is also acceptable. It can be discussed based on different project.
5. Can you provide third party inspection service?
Yes, we can arrange BV/TUV/SGS/LR etc inspection. EN10204 3.2 certificate can be provided.
6. What is your annum turnover?
For 2025, we have had 100 million US dollars turnover for our whole group including factory and the export company.
7. What is the percentage of your export and domestic market share?
Approximately 30% of orders are for export and 70% are for domestic market. However we are aiming to increase more investment on export and hopefully the percentage can be 50-50 in the near future.
