Steel-Aluminum Extruded Type Finned Tube
The processing technology of steel-aluminum Extruded Type Finned Tube is to first process aluminum tube and steel tube into bimetallic composite tube, and then form fins after mechanical cold rolling. The aluminum fins are tightly combined into a bimetallic tube finned tube (composite extruded finned tube)
 
Steel-aluminum rolled finned tubes are integrally rolled from aluminum tubes, and have the characteristics of no contact thermal resistance, high strength, thermal shock resistance and mechanical shock resistance, good thermal performance, and a considerable expansion heat transfer surface. This finned tube heat exchanger is in front of the tube or around the plate.
 
 
Steel-Aluminum Extruded Type Finned Tube Quick Details:
Core tube material:
1. Carbon steel: A179, A192, SA210 Gr A1/C, A106 Gr B
2. Stainless steel: TP304/304L, TP316/TP316L/316Ti, A789 S31803/S2205
3. Copper: UNS12200/UNS14200/UNS70600, CuNi70/30, CuNi 90/10
Fin material:
1. Aluminum (Alu.1100, Alu.1060)
2. Copper.

Fin type: Solid plain
Fin Tube Type: G Type Embedded
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 Steel-Aluminum Extruded Type Finned Tube
   


Common Specifications of Steel-Aluminum Extruded Type Finned Tube

 
We can customize The case of Steel-Aluminum Extruded Type Finned Tube according to your drawings
Example:

 

Manufacturing Process:
The processing technology of steel-aluminum cold-rolled finned tube is firstly processed from aluminum tube and steel tube into bimetallic composite tube, and then mechanically cold-rolled to form fins. Using the physical properties of the aluminum tube, a finned tube in which the tube with the steel tube as the core and the cold-rolled aluminum fins are tightly integrated is made.
 
Fin Type:
Fins are solid flat or serrated into 12, 16 or 24 segments or according to your design.
 
Finless part
Both end with appr. 10mm~50mm, there is a gap in the middle (no fin part).
 
Steel-Aluminum Extruded Type Finned Tube with two different materials
Core tube material: carbon steel, low alloy steel, stainless steel, brass, copper, copper-nickel alloy, aluminum bronze, nickel alloy.