Copper Finned Tube For Heat Exchanger Copper finned tube refers to a single-metal composite finned tube made of high-quality red copper tube as the base tube. Through a special winding machine, the high-quality red copper tape is tightly and evenly wound on the outer surface of the base tube, and then tinned as a whole. Working temperature of Copper Finned Tube:-10℃-+160℃ₒ Copper Finned Tube For Heat Exchanger Quick Details: Outer diameter (OD): 16mm Min~50.8mm max. Tube length: up to 18,000 mm. Fin height: 16.5mm max. Fin thickness: generally 0.4mm~0.6mm Fin pitch: 2.1mm minimum (12FPI) Surface Protection: Both bare ends shall be zinc or aluminum metallized by electrospray arc system coating. Accessories: Tube support boxes, clamps or spacer boxes (materials: aluminium, zinc and stainless steel).