Fired Heaters / Boiler Spiral Wound Finned Tubes SA 335 Gr.P91 Carbon Steel Material

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HFW sprial fin tubes apply in fired heaters , boiler , economizers Base tube material: SA 335 Gr.P91 OD60.3mm X8.74mm THK X9435mm LG, Fin Material: SA 240 TP 410S FPM158 X 1.9mm THK x 12.7mm H 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. Reference Drawing : Material: Stainless Steel+Stainless Steel, Carbon Steel+Carbon Steel, Alloy+Alloy etc. Bare tube OD: 16-219mm Fin Pitch: 3-25mm Fin Height: 5-30mm Fin Thick: 0.8-3mm - - - - Name | Base tube (OD) mm | Fin Pitch (mm) | length (m) | | Min | Max | Min | Max | Min | Max | Extruded aluminum fin tube | 12.7 | 51 | 2.1 | 10 | 0.5 | 20 | L/LL/KL aluminum fin tube | 19 | 51 | 2.1 | 3.2 | 0.5 | 15 | Embedded aluminum fin tube | 19 | 42 | 2.3 | 3.2 | 0.5 | 15 | Low fin tube | 12.7 | 32 | 0.8 | 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) 10 min~26 max | Serrated depth(mm) 4 min~16 max | ERW studded tube | 89 | 200 | 16 | 50 | 2 | 15 | | | | | | | | DC ERW H/HH fin tube | 25 | 51 | 9 | 25 | 1 | 15 | H/HH fins | Length(mm) 60 min-150 max | Thickness(mm) 1.5 min~4 max | Width(mm) 30 min~50 max | - - - - Application: The High Frequency Resistance Welded Helical Fin Tubes are widely applied in fired heaters, heat exchanger, boilers, economizers, pre-heaters, heat pipes, heaters etc Capacity: Seven ERW High Frequency fining lines, daily capacity around 50 tons,length28meters; Products&Inspection Deatails: Check the fin pitch Check the fin thickness Check the fin tube od Sampling tensile test 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 FAQ 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 dont 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 forraw material includingbare 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.

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AARE CUN TAI THERMAL LTD.

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