Classification
1. Classification by Processing Technology
(1) Roll-formed finned tube (extruded fin tube);
(2) Welded finned tube (high-frequency welded finned tube, submerged arc welded finned tube);
(3) Roll-pressed finned tube; etc.
2. Classification by Fin Shape
(1) Square finned tube;
(2) Round finned tube;
(3) Spiral finned tube; etc.
3. Based on whether the fin material is the same as the base tube material, they can be classified into:
(1) Single-metal finned tube
(2) Bimetal composite finned tube
4. Classification of Single-Metal Finned Tubes by Material
(1) Copper finned tube;
(2) Aluminum finned tube;
(3) Carbon steel finned tube;
(4) Stainless steel finned tube;
(5) Cast iron (cast steel) finned tube; etc.
5. Classification by Application
(1) Air conditioning finned tube;
(2) Air-cooled finned tube;
(3) Boiler: finned tubes used for water-cooled walls, economizers, and air preheaters respectively;
(4) Industrial waste heat recovery finned tube;
(5) Other special-purpose finned tubes; etc.
Materials: Stainless steel, carbon steel, alloy steel, titanium, copper, duplex stainless steel, nickel alloys, etc.
