Extruded Fin tubes

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Extruded Fin tubes

Product Details

Longda has a complete set of manufacturing and testing equipments, which are the most
Advanced in the technical tube industry .Meanwhile, we have established an effective
quality management system with strong execution.
We manufacture and control the products in accordance with ASTM (American Society
of Testing Materials) & ASME(American Society of Mechanical Engineers) standards.
1.Copper & Copper Alloys Tube
ASTM B75 ,ASTM B111, ASME SB75,ASME SB111
Chinese Standard : GB/T1527,GB/T 8890
DIN EN12451,DIN EN12449, EN10204
2.Carbon Steel Tube: ASTM A179 ,ASME SA179 ,ASTM A498,ASME SB498
3.Stainless Steel Tube :ASTM A213 ,ASTM A268
4.Titanium & Titanium Alloy Tube :ASTM B338, ASTMB861,ASME SB338 ,ASME SB861, GB/T 3624, GB/T 3625, EN17861
5.Aluminum Tube : ASTM B241 ,ASME SB241, GB/T 4436 , GB/T 4437.1

Extruded Copper-Aluminum Composite Fin Tube

Fin Tube Material	China GB	ISO	EN	UNS	JIS
Copper	TP2	Cu-DHP	CW024A	C12200	C1220
Copper	TP1	Cu-DLP	CW023A	C12000	C1201
Admiralty Brass	HSn70-1	CuZn28Sn1As	CW706R	C44300	C4430
Aluminum Brass	HAl77-2	CuZn20Al2As	CW702R	C68700	C6870
Copper Nickel 90/10	BFe10-1-1	CuNi10Fe1Mn	CW352H	C70600	C7060
Copper Nickel 90/30	BFe30-1-1	CuNi30Mn1Fe	CW354H	C71500	C7150
Aluminum	1050A	Al99.5	Al99.5	1050	A1050
Aluminum	1060	-	Al99.6	1060	A1060
Aluminum Alloy	6061	-	AlMg1SiCu	6061	A6061
Aluminum Alloy	6063	-	AlMg0.7Si	6063	A6063

Range of Available Dimensions
Extruded Double Metal Fin Tube /Extruded Copper-Aluminum Composite Fin Tube

OD (mm)	Fin Height (mm)	Base Tube Diameter (mm)	Fin-Pitch (mm)	Thickness of Fin	Radiating Area ( m2/m )	Finned Ratio (β)	Use Temperature (℃)
25	6.5	12	2	0.25	0.38	10.2	≤150
28	7.5	12	2	0.25	0.42	11	≤150
36	10	16	2.3	0.3	0.61	13.6	≤150
36	10	16	2.5	0.3	0.77	13	≤150
38	10	18	2.3	0.3	0.77	13.8	≤150
38	10	18	2.5	0.3	0.79	13.1	≤150
44	12.5	19	2.5	0.3	0.86	14.5	≤150
44	12.5	19	2.8	0.3	0.89	13.7	≤150
48	12.5	22	2.5	0.3	0.94	14.8	≤150
48	12.5	22	2.8	0.3	0.90	14.2	≤150

Application & Advantage
xtruded Copper-Aluminum Composite Fin Tube (Base Tube Materials are Copper & Copper Alloy ) ,which fin tube is made of copper/ copper alloy tube and aluminum tube. The copper /copper alloy base tube is coated with an aluminum tube to extrude the aluminum fin , the root of the fin is tightly jointed with the outer wall of base tube. Good heat transfer performance , high strength , excellent corrosion resistance .It is not easy deformation in the long-term cold thermal operating conditions and long service life.
Overall extruded fin is smooth & burr-free, no obvious wrinkle ,easy cleaning .Wet cooling is proceeding in heating and air conditioning engineering ,condensation water is easy to excluded. Especially non dust absorption and Anti-scaling in the drying, heating and other heat transfer occasion.

Surface treatment by anode ,color beautiful, can prevent surface corrosion.

Compared with similar fins, extruded double metal fin tube is consist of more than 40% aluminum thus the base tube , that is protected against atmospheric corrosion well
Very sturdy design resists mechanical damage as well
Easy to clean with steam or water
Different base tube materials for different requirements can be used with almost all chemically aggressive media

Design:
Fin material: aluminum (1060,1050,6061,6063)
Base Tube Material: copper & copper alloy (C12200,C12000,C44300,C68700,C70600,C71500)
Base Tube OD: 12mm ～22mm ; Base Tube WT:1.0mm～4.0mm
0mm＜Length＜12000mm

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