Copper-Aluminum Composite Finned Tube
The copper-aluminum composite finned tube is a bimetallic finned tube in which copper and aluminum composite tubes are composited and then rolled into fins, which overcomes the defect that aluminum and other metals cannot be welded. It has the characteristics of tight bonding, small thermal resistance, good heat transfer performance, high strength, small flow loss, strong corrosion resistance, not easy to deform under long-term hot and cold working conditions, and long working life.
 
The copper-aluminum composite finned tube is an integrally rolled fin with smooth, burr-free, wrinkle-free and easy to clean. It is easy to remove condensed water on the outer surface of the fin during wet cooling in heating and air-conditioning projects. Not easy to dust and scale.
 
 
Copper aluminum composite finned tube 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).
 
Additional Info
Payment Terms:T/T, LC
Delivery: 15-30 days after payment
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Iron frame packing boxes and the desiccants are put into each package for continental transportation as well. or as required
 
 
The case of Copper Aluminum Composite Finned Tube
  
 
We can customize Longitudinal Finned Tube for heat exchanger according to your drawings
 
 
 
Manufacturing Process:
Copper-aluminum composite finned tube is a bimetallic finned tube in which copper and aluminum composite tubes are composited and then rolled into fins.
 
Quality Control
Inspection and Tests Performed
Chemical Composition inspection,
Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Hardness, Impact Test), S
surface and Dimension Test,
No-destructive Test,
Hydrostatic Test.
 
Delivery conditions
The tube ends are square cut without burrs, the inside is dry and blown clean, and the ends of the L-shaped tension wound finned tube are coated with varnish on the outside.
 
Acceptance Criteria
API Standard 661 (Air-Cooled Heat Exchangers for General Refinery Service) or Delivery Conditions (TDC).
 
 
Features of Copper-aluminum composite finned tube
(1) Light weight.
(2) Good heat transfer performance.
(3) Small air resistance.
(4) Low touch thermal resistance.
(5) The heat dissipation area is large.
(6) Long service life.
(7) The steel-aluminum composite finned tube is not easy to produce dust and scaling.
 
The copper-aluminum composite finned tube has the characteristics of tight bonding, low thermal resistance, good heat transfer performance, high strength, small flow loss, and strong corrosion resistance. All rolled fins are lubricated, wrinkle free and easy to clean. When wet cooling is performed in heating and air conditioning projects, the condensed water on the outer surface of the fins is easily removed, and it is not easy to accumulate dust and scale in heat exchange occasions such as dry heating.
 
 
Application
Copper-aluminum composite finned tubes are widely used in water-cooled air heat exchangers and high-temperature water radiators in the petroleum and chemical industries.