AARE CUN TAI THERMAL LTD.
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HFW sprial fin tubes apply in furnaces and fired heaters
Base tube material: SA 335 Gr.P91
Fin Material: Q235
Manufacturing Process:
The studs are attached to the pipe indiametrically opposing pairs around the circumference by electrical resistancewelding to ensure a high integrity bond for strength and heat flow.
Material:Stainless Steel+Stainless Steel, Carbon Steel+Carbon Steel, Alloy+Alloy etc.
Bare tube OD: 25-219mm Fin Pitch: 8-30mm Fin Height: 5-35mm Stud: Ф5-20mm
| Name | Base tube | Fin Pitch | length | |||
| Min | Max | Min | Max | Min | Max | |
| Extruded aluminum fin tube | 8 | 51 | 1.6 | 10 | 0.5 | 20 |
| L/LL/KL aluminum fin tube | 16 | 63 | 2.1 | 5 | 0.5 | 15 |
| Embedded aluminum fin tube | 16 | 63 | 2.1 | 5 | 0.5 | 15 |
| Low fin tube | 10 | 38 | 0.6 | 2 | 0.5 | 20 |
| Spiral fin tube | 12.7 | 70 | 0.5 | 20 | ||
| ERW HF spiral fin tube | 16 | 219 | 3 | 25 | 0.5 | 28 |
| ERW HF spiral serrated fin tube | 16 | 219 | 3 | 25 | 0.5 | 28 |
Serrated width(mm) | Serrated depth(mm) | |||||
| ERW studded tube | 25 | 219 | 8 | 30 | 2 | 15 |
| DC ERW H/HH fin tube | 25 | 63 | 8 | 30 | 1 | 15 |
| H/HH fins | Length(mm) | Thickness(mm) | Width(mm) | |||
Application: studded tube are used in furnaces and fired heaters as an alternative tohigh frequency welded finned tubes wherever the process application is such that heavy fouling of the surface may occur.
Capacity:Three ERW studding lines, daily capacity around 120000 studs;
Products:
Welding
Description of the inspections carried out
Following documentations should be reviewed & endorsed:
1. Declaration of conformity,
2. Inspection plan,
3. Welding book(WPS & PQR),
4. Finned tubes examination reports
(dimension & visual inspection, hardness test report, tensile test report),
5.Test samples sheet,
6.Incoming inspection report,
7.Inspection certificate for bare tube,
8.Quality test certificate for steel strip,
9.Iinspection & Guarantee certificate for finned tube,
10.Product inspection report.
Packaging: sea worthy with plastic cap for each edge of core tube , finned tubes shall be put on the metal frame with wooden walls and plastic layer be considered between tubes rows to avoid damage and deformation of the fins
About our company
A------We have three company,
1. Aare Cun Tai Thermal Co., Ltd (Hong Kong, China)
2.Jiang Yin Cun Tai Thermal Equipment Co., Ltd (Jiangsu, China)(Mill)
3.Jiang Yin Aare International Trading Co.,Ltd. (for export procedure)
Besides the companies above mentioned, we don’t have any other name.
About Our main business
A------DR(Extruded) / L(Wrapped) / LL(Overlapped) / KL-KLM (Knurled) / G(Embeded) Fin Tube;
High Frequency Welding Fin Tube,Studded Tube, H/HH/Square Fin Tube,Longitudinal Tube;
Elbows, Low Fin Tube,Spiral Tube, U bend , Corrugated Tube.
About Price terms
A------It could be EXW, FOB,CIF,CNF
About Payment Term
A------We usually accept payment by T/T in advance or by L/C available against draft at sight
About Lead Time
A------Usually it takes about 35-45 days after we received your confirmation.
However, it would depend on our production line schedule(the timing clients place order)and the complication of the item.
About Quality Control
A----
Incoming inspection report for raw material including bare tube/alu.tube / alu. strip / steel strip
Mill test cetification for bare tube
Mill test cetification for fin (alu.tube / alu. strip / steel strip)
Mill test cetification for finned tube
Finned tubes dimension & visual inspection reports
About Sample
A---If you are interested in our above products, please contact us.
We can provide small samples in store for you, and you are welcome to visit our factory
Our moulds can be customized,you could kindly leave an inquiry to know more details about price, packing and shipping.