Carbon Steel Copper Aluminum Fined Tube Elliptical and Spiral Fined Tube

• After-sales Service: Fin Tube
• Warranty: 5
• Type: Welded
• Technique: ERW
• Material: Alloy Steel
• Surface Treatment: Black
• Model NO.: ZD-CPG80 Fined tube
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Product Name: Fin Tube
• Lenght: 12m, 6m, 4m, as Required
• Production Standards: ASTM/JIS/AISI/DIN/BS/En/GB
• Payment Term: 30%T/T Advance + 70% Balance
• Alloy or Not: Low Alloy
• MOQ: 3tons
• Lengh: Customized
• Advantage: Wear Resistance, Machinability, Easy Welding
• Specification2: Zd-Hrssp20e10/20/30/40/50/60/70
• Specification3: Zd-Hrssp20e80/90/102/118/120
• Standad: ASTM a 6/a 6m-07 BS 4-1:1993 En 10024 JIS G 3192
• Custom: 7-15 Days
• Thickness: 2.11-59.54 mm as Required
• Processing Service: Welding, Punching, Cutting, Bending, Decoiling
• Brand: DIN, ASTM, GB, JIS, En, AISI, BS
• Transport Package: Export Standard Package/as Request
• Specification: According to customer requirements
• Trademark: ZHENGDE
• Origin: China
• HS Code: 7304192000
• Production Capacity: 65000 Tons/Month

Product Description

Product Description

Zhengde Elliptical finned tube is a heat exchange element composed of base tube elliptical tube and external fin. Common ones include elliptical rectangular finned tube, elliptical oval finned tube, elliptical circular finned tube, spiral elliptical flat tube, elliptical H-shaped finned tube, etc. Elliptical finned tube is gaining attention due to its superior performance compared with circular finned tube. Elliptical finned tube has been widely used in industrial fields such as ethylene and oil refining. Elliptical finned tube is used in heat exchange equipment as a high-efficiency heat exchange element. The outer flow resistance of the tube is small and the heat exchange efficiency is high, which makes the heat exchange equipment compact, lightweight, efficient and miniaturized.

NO.	Fin tube technical parameters
	Outer diameter	Root diameter	the inside diameter of	Wall thickness	Wing height	Wing span	Thick wing top	Thick wing root	Average wing thickness	weight	Surface Area	Surface area per unit weight	Wing ratio
	DW	D0	d	δ	h	S	Sd	Sg	S'	G	F	A	β
	mm	mm	mm	mm	mm	mm	mm	mm	mm	Kg/m	m2/m	m2/Kg	/
1	50	32	26	3.0	9	6	1.5	3.3	2.4	6.48	0.4307	0.06647	4.286425159
2			25	3.5						6.78		0.06353
3			24	4.0						7.07		0.06092
4	56		26	3.0	12	9	1.6	3.4	2.5	6.09	0.4334	0.07117	4.313296178
5			25	3.5						6.39		0.06782
6			24	4.0						6.67		0.06498
7	62	38	31	3.5	12	9	1.8	3.6	2.7	7.47	0.4928	0.06597	4.130070399
8			30	4.0						7.83		0.06294
9			29	4.5						8.19		0.06017
10			31	3.5	12	11				6.73	0.4253	0.06319	3.564364733
11			30	4.0						7.09		0.05999
12			29	4.5						7.44		0.05716
13			31	3.5	12	13				6.21	0.3783	0.06092	3.170465974
14			30	4.0						6.58		0.05749
15			29	4.5						6.93		0.05459
16	66	42	34	4.0	12	9				8.96	0.5339	0.05959	4.048377313
17			43	4.5						9.36		0.05704
18			42	5.0						9.75		0.05476
19			34	4.0	12	11				8.09	0.4612	0.05701	3.497118593
20			43	4.5						8.49		0.05432
21			42	5.0						8.88		0.05194
22			34	4.0	12	13				7.49	0.4110	0.05487	3.116469518
23			43	4.5						7.89		0.05209
24			42	5.0						8.28		0.04964
25	79	55	34	4.0	12	13				8.66	0.5361	0.06191	3.104226983
26			43	4.5						9.22		0.05815
27			42	5.0						9.77		0.05487
Note: The materials include 20g, 20G, 12Cr1MoVG, 12CrMo, 15CrMo, 1Cr19Ni9, ND steel, etc. Other materials can be customized

Our Advantages

Fin tube type
There are many types of fin tubes. According to the different installation positions of the fins, there are two types of fin tubes: internal fin tubes and external fin tubes. Among them, external fin tubes are more commonly used. According to the different fin arrangement methods, there are two types of fin tubes: longitudinal fin tubes and transverse fin tubes. According to the different shapes of the base tubes, there are round fin tubes, elliptical fin tubes, flat tube fin tubes, etc.

Characteristics of finned tubes
(1) Compared with circular finned tubes, elliptical finned tubes are easier to achieve compact layout, which reduces the overall volume of the entire heat exchanger and thus reduces the floor space.
(2) Due to the shape characteristics of elliptical finned tubes, the air side resistance is small, the heat transfer coefficient between fluids is increased; the thermal resistance inside the tube is relatively small, which increases the heat transfer of the fluid inside the tube.
(3) The heat transfer area of elliptical finned tubes is larger than that of circular tubes with the same cross-sectional area. This is because the heat transfer perimeter of elliptical tubes is longer under the same cross-sectional area.

Characteristics of finned tubes
(4) The most commonly used elliptical finned tubes are rectangular steel fins, which have high strength, the base tube is not easy to freeze and crack in winter, and have a long service life.
(5) Since elliptical finned tubes can be arranged more compactly, the front row of tubes has a greater impact on the rear row. The external flow resistance of the tube can be reduced by increasing the fin spacing of the rear row of tubes, but the number of tube rows should not be too large.

Quality first: production and inspection in strict accordance with production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere service can last for a long time.

Detailed Photos

Packaging & Shipping

Company Profile

Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products integrated large enterprises. Five production and sales bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan and Tai'an, with more than 100 production lines, 4 nationally recognized laboratories, 2 technical engineering centers, and 5 enterprise technology centers. Products are exported to more than 50 countries and regions such as North America, South America, Europe, Africa, Oceania, Middle East, and Southeast Asia.

Certifications