SA179 Carbon Steel Helical Steel Finned Tube for Heat Exchanger
|Payment Type:||L/C,T/T,Western Union|
|Terms of Trade:||FOB,CFR,CIF|
|Min. Order:||1 Short Ton|
|Delivery Time:||10 Days|
|Packaging:||Export Standard Packing|
|Productivity:||1500 Tons Per Month|
|Place of Origin:||CHINA|
|Certificate:||SGS, ABS, BV, TUV|
Model No.: SA179 Carbon Steel Helical Steel Finned Tube for Heat Exchanger
SA179 Carbon Steel Tube , Welded Helical Steel Fin Tube for HRSG Boiler
Application: Seamless Carbon Steel Boiler Tubes For High-Pressure Service.
High Frequency Resistance Welded Helical Steel Fin Tubes is widely used in the recovery of waste heat from boiler flue gas.
General HF welding production capacity
|General specifications of HF welding fin tube|
Welding Facility: 4 finning machines;
Daily production capacity up to 40 tons;
HFW Fin type: solid plain and serrated.
Tube OD: 19mm min.
Tube Length: 18 meters max.
Fin Height: 32 mm max.
Fin Thickness: 0.8mm min
Fin Pitch: min. 4 mm for solid fins & 3.3mm for serrated fins.
General Manufacturing Process: The fin strip is welded continuously and spirally wound onto a polished bare tube. And the tube and fins are bonded together by using high frequency resistance welding technique.
We produce both solid plain and serrated helical welded steel finned tube. And also, all spiral welding tubes could be bent in the middle or at the end of fin tubes, we call it Hairpin tubes.
Additional Services for Solid helical welded fin tubes:
- High frequency welding machine output power supply: 200KW or 300KW
- The High Frequency Resistance Welded Spiral Fin Tube quality is assured by hydrostatic or pneumatic tests and tensile tests in order to verify the mechanical bonding between bare tube and fin materials.
- Acceptance criteria: INTERNATIONAL STANDARD FOR DIMENSIONS, TOLERANCES, AND TESTS OF HIGH FREQUENCY RESISTANCE WELDED FINS or the delivery conditions (TDC) of clients.
- Visual check: un-welded parts of fin, fin damage after fining, copper pollution, tears, wrap etc-
- Dimensional check: fin height, fin spacing, fin inclination, fin corrugation, length of finned & un-finned portion etc-
- Bending check: ovality, thickness and area reduction.
- Coating: outside-Red oxide zinc phosphate primer and inside volatile corrosion inhibitor (VCI) in water soluble tablet form.
- Fin end finish: Bevel(30~35degeree)
- Delivery condition: Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of helical welded tubes. The desiccants are put into the each package for continental transportation as well.
- Documentation shall include QAP, WPS, PQR& WPQ, raw materials mill certificates, inspection and test samples results and warranty certificate of manufacturer.
The High Frequency Resistance Welded Helical Fin Tubes are widely applied in fired heaters, heat exchanger, boilers, economizers, pre-heaters, coolers, heat pipes, heaters etc-.
A wide range of fin and tube materials could be combinations are available.
|Items||General Materials||Popular ASTM Materials|
|Core Tube Material|| |
Carbon Steel , Alloy Steel, Heat Resistant Steel,
Stainless Steel etc.
10#,20#,15CrMo,Cr5Mo,Cr9Mo,1Cr18Ni9Ti,0Cr18Ni9, 00Cr17Ni14Mo2,SA106B,SA106C, SA192, SA179,
SA178,SA214, SA210-A1, SA210-C,TP304/304L/304H, TP409/410,TP316/316L,TP321/321L,TP347H,T11,T22,T91,etc.
|Fins Material|| |
Carbon Steel , Alloy Steel, Heat Resistant Steel,
Stainless Steel etc.
Q235-BF,08F,08AL, 1Cr18Ni9Ti, 0Cr13, 1Cr13, 0Cr18Ni9, 09CrCuSb, CS,A1008-B,SPHC, SPCC, TP304/304L,TP316/316L,TP321/321L,etc.
Dimensions Data Sheet We Can Supply.
Solid Helical Steel Fin Tubes Fabrication Range
Additional supply range :
(1) Tube swaging process for joint of 2 tubes.
(2) Spacer rings (material: steel) are available.
(3) One side is solid plain fins and the Other is serrated fins, 2 fin types on same tube.
- We have more than 10,000 square meters workshop, including 4 ERW high Frequency welding fining lines, daily production capacity around 40 Tons;
- Our quality assurance plan for High Frequency Welding Spiral Steel Tubes. (2.1) Raw material control for both plain tubes and fins. (2.2) In process control with reports,as WPS, PQR&WPQ; weld deposition efficiency test before fabrication, Non-destructive test and tensile test etc. (2.3) Final inspection control with reports (Visual and dimensional check etc-).
- The High Frequency Resistance Welded Fin Tube is integrally extended for the max surface area to achieve efficiency. The heat transfer ratio of high frequency welding fin tube is about 8~9 times higher than other plain tubes.
- This Welded Helical Fin Tubes is a singular integral unit, eliminating heat contact resistance and losses. Generally tube side temperature up to 800 degree for stainess steel fins; Low carbon steels, withstanding up to 475 degree is the most common choice.
YUHONG GROUP CO.,LIMITED
Yuhong Group Co.,Limited is one of the largest Procurement Engineering and Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004. Yuhong Group has expanded its field of activities and entered in trade and supply of tubular & flat products in Stainless Steel, Carnon steel, Alloy Steel as well as a series of special materials for our reputed clients worldwide. These products are widely used in various important sectors like Mining, Energy, Petrochemical, Chemical Industry, Food Plant, Paper Plant, Gas and Fluid Industry etc.
Yuhong Group has gained rich experience in Pipes, Fittings, Flanges, Valves, Structural steel, Coils and Plates in past seven years. In a short span of time, Yuhong Group has marked its global presence in more than 30 countries. We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers an stockists around the world.
It allows us to offer highly competitive solutions with certified quality, complying with high standard of today's industry. In the supply chain of Yuhong Group,Stainless Steel Pipe and Tube, which are produces by our factories : Zhejiang Yuhongwell Steel Co.,Ltd , Zhejiang Zhongwu Tube Manufacturing Co.,Ltd , Jiangsu New Zhongzhou Special Alloy Materials Co.,Ltd etc. And all of Other products' suppliers are approved by our QC department. About Stainless Steel Fittings & Flanges, our suppliers are approved by PED, AD2000, DNV, ABS, TS, GL, LR, KR, GOST, NK, etc. Similarly in Carbon Steel Pipe/tube/fitting, our suppliers are approved by API5L, API 5CT,API 5D, PED etc. When we place the order, it is our practice to follow the order start from raw material. After getting the material ready, our QC people make strict inspection again before loading the material. We will follow the whole processing of producing, marking ,packing and inspection before deliver to customer.
- Company Name: YUHONG GROUP CO.,LIMITED
- Representative: Bing Chen
- Product/Service: Heat Exchange Tube , Boiler Tube , Nickel Alloy Steel Pipe & Tube , Duplex Steel Pipe & Tube , Forged Flange , Butt Welding Fitting
- Capital (Million US $): 200,000,000RMB
- Year Established: 2007
- Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
- Export Percentage: 61% - 70%
- Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
- No. of Production Lines: 54
- No. of R&D Staff: 11 -20 People
- No. of QC Staff: 5 -10 People
- OEM Services Provided: yes
- Factory Size (Sq.meters): 30,000-50,000 square meters
- Factory Location: MoCheng Industrial Park, Aojiang Town, Wenzhou City, Zhejiang.
- Contact Person: Mr. Luis Bao
- Tel: 86-574-88013900
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