Import 304l, Tp316l Aluminum Extruded Fin Tube — Buy in wholesale FOB from Supplier in China

Yangzhou Minyang Heat Transfer Technology Co., Ltd. manufactures extruded fin tubes with a stainless steel 304L or TP316L core tube and helically wound aluminium fins. The base tube outer diameter range spans 25mm to 85mm, with fin thickness from 0.25mm to 1mm and fin density of 5 to 12 fins per inch. Fin length extends from 300mm to 18000mm, accommodating both compact heat exchangers and long furnace tube bundles. The extrusion process uses aluminium grades 1060, 1050, 1070, 6063, 6061, or 3003, fitted over the core tube and formed through a triple-spindle finning machine with multi-disc packs that reduce the inner aluminium diameter for firm pressure contact.

The manufacturing method begins with fitting a core tube into an aluminium primary tube, then feeding this assembly through the triple-spindle finning machine. Three special multi-disc packs extrude the aluminium into helical high fins while compressing the inner diameter onto the core tube surface. This mechanical bond eliminates the air gap found in tension-wound or embedded fin designs, improving thermal conductivity at the tube-to-fin interface. The 304L and TP316L core options provide corrosion resistance for air coolers, oil coolers, heat recovery systems, process heaters, dryers, and HVAC heat exchangers. Alternative base tube materials listed include SA179, SA789 S31803, SA334, SA249, and various copper alloys, though this specific offering focuses on the stainless steel cores.

Buyers in power generation, petrochemical processing, and industrial HVAC specify these fin tubes for air-cooled heat exchangers, waste-heat boilers, and process fluid heating duties. The 304L core suits general industrial atmospheres, while TP316L resists chloride-bearing cooling water and coastal environments. Aluminium fin selection between 1000-series pure aluminium and 6063 alloy affects thermal expansion matching and ambient corrosion resistance. Buyers should confirm with Yangzhou Minyang which aluminium grade is standard for 304L/TP316L cores, whether internal bore surface protection is provided during transit, and what cleaning protocol applies before commissioning in hydrocarbon or steam service.

Yangzhou Minyang Heat Transfer Technology Co., Ltd. is located at No.1 Zhichen Road, Yizheng, China, with postal code 86. The company holds a harbor trust tier on the platform, with a recorded response rate of 0.00% and zero average response hours, indicating no response data is currently available. The supplier identifies itself as a professional manufacturer of industrial fin tubes, with product application across dryers, air and oil coolers, heaters, heat recovery units, and general heat exchangers.

The supplier's manufacturing scope extends beyond stainless steel cores to include carbon steel, duplex stainless steel, copper alloys, and nickel alloys, though this listing focuses on 304L and TP316L base tubes with aluminium extruded fins. No factory certification, production capacity, annual revenue, or employee count is stated in the source material. Buyers should contact the supplier directly to request ISO 9001 or ASME U-stamp status if required for project qualification, and to obtain reference installations in comparable heat exchanger applications.