Yuhong Holding Group Co.,LTD
Place of Origin: | CHINA |
Brand Name: | YUHONG |
Certification: | ISO , PED, API , CE |
Model Number: | HELICAL SPIRAL SERRATED FINNED TUBE |
Minimum Order Quantity: | 1PC |
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Price: | Negotiable |
Packaging Details: | Ply-wooden Case / Iron frame Case |
Delivery Time: | Depending on QTY |
Payment Terms: | T/T, L/C at sight |
Supply Ability: | 5000 pcs per month |
Fin Type: | SERRATED FINNED TUBE | Base Tube Material: | Carbon Steel, Stainless Steel, Duplex & Super Duplex Steel, Alloy Steels (P5,P9,P11, P22), Inconel, High Chrome High Nickle & Incolloy |
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Fin Material: | Carbon Steel , Stainless , Alloy , Copper | Fin Hight: | 10~50mm |
Fin Thickness: | 0.3mm ~ 3.0mm | Fin Qty: | Depend On Client Request |
High Light: | Helical Spiral Serrated Finned Tube,HFW Heat Exchanger Finned Tube,0.3mm Heat Exchanger Tube |
Overview
Yuhong Group's Welded Helical Serrated Finned Tubes are produced in the same manner as solid fin, except that before the fin strip is formed around the tube, the fin strip is cut (or “serrated”) crosswise from one edge (which will become the outer edge of the fin segments) to within 1/4″ of the other edge, leaving an uncut portion that will become a continuous base for the fin segments. The interval between cuts (which determines the segment width after the strip is formed around the tube) may be specified as either 5/32″ or 5/16″. After being cut, the fin strip is held under tension and confined laterally as it is formed around the tube, thereby ensuring forceful contact with the tube surface. As the fin strip is formed around the tube its outer (serrated) edge spreads, opening the segments like petals of a daisy. A continuous weld is applied at the point where the fin strip first begins to bend around the tube diameter using Yuhong Group's unique gas metal arc welding (GMAW) process. This welding process creates the strongest fin to tube attachment in the industry, excellent heat transfer characteristics, low fin-side pressure drop and little to no change in grain microstructure and physical characteristics even when 3%-9% chromium tubes are used.
Finned tubes are classified according to their shape:
Finned tubes are classified by processing technology:
Yuhong Group's Welded Helical Serrated Finned Tubes | |
Weld Process | GMAW |
Tube/Pipe Size | 1.00″ to 12.75″ outside diameter |
Fin Height | 0.375″ to 1.25″ |
Fin Segment Width | 5/32″ or 5/16″ |
Fin Thickness | 20ga (.035″) to 16ga (.060″) |
Fin Pitch | 1 to 7 fins per inch |
Materials | Any material combination that can be arc welded |
Tube Length | No practical limit |
Base pipe/tube material:
Stainless steel: ASME SA213/ASTM A213, ASME SA249/A249 ,ASME SA312/A312: TP304,304L, TP304H, TP310S, TP310H, TP316L, TP316H, TP316Ti, TP317, TP317L, TP321,TP321H, TP347, TP347H, TP904L
Duplex/Super Duplex Steel: ASME SA789/A789 , ASME SA790/A790: S31803, S32205, S32750, S31500, S32304, S32900
Carbon Steel : ASME SA106/ASTM A106 Gr B, Gr C, ASME SA179/ASTM A179, ASME SA192/ASTM A192, ASTM A214, ASTM A210 Gr.A1 , Gr.C.
Alloy Steel : ASME SA213/ASTM A213 T1, T11, T12, T22, T23, T5, T9, T91, T92 ; ASME SA335 /ASTM A335 P1, P11, P12, P22, P23, P5, P9 , P91, P92 , 16Mo3, 15Mo3, 13CrMo-4, 12Cr1MoVG.
Nickel Alloy Steel Grade:Hestalloy:C-276, C-4, C-22, C-2000, X, B-2, B-3, G-30, G-35. Monel:400,401, 404, R-405, K500.
Inconel:600, 601, 617, 625, 690, 718, 740, X-750. Incoloy:800, 800H, 800HT, 825, 840.
Pure Nickel:Ni-200, Ni-201, Ni-270. NS Alloy:Ns 1101, NS1102, NS1103,NS3105. Copper Alloy Steel: ASTM B111(70400, C70600, C71500, C71640, C68700, C44300)
Fin material: Alloy Steel , Stainless Steel , Carbon Steel .
Stainless steel High Frequency Welded fins tube, carbon steel High Frequency Welded fins tube, Duplex High Frequency Welded fins tube Super Duplex High Frequency Welded fins tube, Air cooler fins tube, Air preheater fins tube. Extruded fins tube, Serrated fin tubes.
Advantage of HFW Fin Tube:
Application of HFW Fin Tube :
Contact Person: Kelly Huang
Tel: 0086-18258796396
Fax: 0086-574-88017980