| Product Name: | U Bend Finned Tube | Tube Material:: | Carbon Steel， Stainless Steel， Alloy Steel |
|---|---|---|---|
| Aluminum Fin: | Alu.1100，Alu.1060 | O.D.: | 20mm To 219mm |
| W.T.: | 2mm To 16mm | Length: | Can Customized |
| Type: | Straight，U Bend | NDT: | HT， ET， UT ， PT |
| Application: | Heat Exchanger， Boiler， Thermal Transfer Equipment， Etc. | ||
| High Light: | Carbon Steel Finned Tube， U Shaped HFW Tube | ||
A106 Gr.B Carbon Steel U Shaped HFW Finned Tube for Heat Exchanger
The U-shaped finned tube has several advantages， including:
Increased heat transfer efficiency: The fins on the tube increase the surface area， which improves heat transfer efficiency.
Reduced size and weight: The increased heat transfer efficiency allows for smaller and lighter heat exchangers to be used.
Improved corrosion resistance: The U-shaped finned tube is often made of materials with good corrosion resistance， which makes it suitable for use in harsh environments.
Enhanced mechanical strength: The fins on the tube also provide additional mechanical strength， which can be beneficial in high-pressure applications.
Fin Tube Specification
| PRODUCT | TYPE | NAME | BARE TUBE MATERIAL | FIN MATERIAL |
Heat Exchanger Finned Tube | EMBEDDED | G-TYPE FIN TUBE | CARBON STEEL， COPPER， STAINLESS STEEL， ALLOY | ALUMINUM |
| EXTRUDED | SINGLE METAL GOMBINED METAL | CARBON STEEL， COPPER， STAINLESS STEEL， ALLOY | COPPER， ALUMINUM | |
LOW FIN TUBE T-TYPE FIN TUBE | CARBON STEEL， COPPER， STAINLESS STEEL， ALLOY | / | ||
BAMBOO TUBE CORRUGATED TUBE | CARBON STEEL， COPPER， STAINLESS STEEL， ALLOY | / | ||
| WOUND | L/KL/LL TYPE FIN TUBE | CARBON STEEL， COPPER， STAINLESS STEEL， ALLOY | COPPER，ALUMINUM | |
| STRING | STRING FIN TUBE | ALUMINUM， COPPER， CARBON STEEL， STAINLESS STEL | ALUMINUM， COPPER， CARBON STEEL， STAINLESS STEL | |
| U-TYPE | U-TYPE TUBE | CARBON STEEL， COPPER， STAINLESS STEEL | / | |
| WELDING | HF WELDING FIN TUBE | CARBON STEEL， STAINLESS STEEL， ALLOY | CARBON STEEL， STAINLESS STEEL， ALLOY | |
| U-TYPE | H/HH TYPE FIN TUBE | CARBON STEEL， STAINLESS STEEL， ALLOY | CARBON STEEL， STAINLESS STEEL， ALLOY | |
| WELDING | STUDDED FIN TUBE | CARBON STEEL， STAINLESS STEEL， ALLOY | CARBON STEEL， STAINLESS STEEL， ALLOY |
Base tube material:
stainless steel， carbon steel， alloy steel
ASME SA213/ASTM A213 TP304/304L TP316/TP316L TP321 TP310S TP317，
ASME SA106/ASTM A106 Gr B Gr C，ASME SA179/ASTM A179，ASME SA192/ASTM A192
Alloy Steel Chemical Compositions
| Grade | UNS Designation | Composition， % | ||||||
| Carbon | Manganese | Phosphorus， max | Sulfur， max | Silicon | Chromium | Molybdenum | ||
| P1 | K11522 | 0.10-0.20 | 0.30-0.80 | 0.025 | 0.025 | 0.10-0.50 | — | 0.44-0.65 |
| P2 | K11547 | 0.10-0.20 | 0.30-0.61 | 0.025 | 0.025 | 0.10-0.30 | 0.50-0.81 | 0.44-0.65 |
| P5 | K41545 | 0.15MAX | 0.30-0.60 | 0.025 | 0.025 | 0.50MAX | 4.00-6.00 | 0.45-0.65 |
| P9 | K90941 | 0.15MAX | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 1.00-1.50 | 0.44-0.65 |
| P11 | K11597 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| P12 | K11562 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | 0.5MAX | 0.80-1.25 | 0.44-0.65 |
| P15 | K11578 | 0.05-0.15 | 0..30-0.60 | 0.025 | 0.025 | 1.15-1.65 | — | 0.44-0.65 |
| P21 | K31545 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50MAX | 2.65-3.35 | 0.80-1.06 |
Material Grade
| American Standard | Austenitic Steel: TP304，TP304L，TP304H， TP304N， TP310S，TP316，TP316L，TP316Ti，TP316H， TP317，TP317L， TP321， TP321H，TP347， TP347H，904L… Duplex Steel : S32101，S32205，S31803，S32304，S32750， S32760 Others:TP405，TP409， TP410， TP430， TP439，… |
| Europen Standard | 1.4301，1.4307，1.4948，1.4541，1.4878，1.4550，1.4401，1.4404，1.4571，1.4438， 1.4841，1.4845，1.4539，1.4162， 1.4462， 1.4362， 1.4410， 1.4501 |
| GOST Standard | 08Х17Т，08Х13，12Х13，12Х17，15Х25Т，04Х18Н10，08Х20Н14С2， 08Х18Н12Б，10Х17Н13М2Т，10Х23Н18，08Х18Н10，08Х18Н10Т， 08Х18Н12Т，08Х17Н15М3Т，12Х18Н10Т，12Х18Н12Т，12Х18Н9， 17Х18Н9， 08Х22Н6Т， 06ХН28МДТ |
Technical Details/Base Tube Details
Tube Diameter : 20 mm OD Min to 219 mm OD Max.
Tube Thickness : Minimum 2 mm up to 16mm
Tube Material : Carbon Steel， Stainless Steel， Alloy Steel， Corten steel， duplex Steel， Super Duplex Steel， Inconel， High Chrome High Nickle & Incolloy， CK 20 material and some other material.
Fin Details
Fins Thickness : Min. 0.8 mm to Max. 4 mm
Fins Height : Min 0.25” (6.35 mm) To Max.1.5” (38 mm)
Fin Density : Min 43 Fins Per Meter To Max. 287 Fins Per Meter
Material : Carbon Steel， Stainless Steel， Alloy Steel， Corten steel， Duplex Steel and Incolloy.
Applications
U-shaped fin tubes are commonly used in heat exchangers， boilers， and other thermal transfer applications. They are particularly useful in situations where there is a large temperature difference between the fluids being exchanged， as the fins on the tube increase the heat transfer surface area and improve efficiency. U-shaped fin tubes are also used in air conditioning systems， refrigeration systems， and other industrial applications where heat transfer is required.
