ASTM A179 Carbon Steel Seamless Wound L Type Finned Tube For Air Heater
YUHONG Group supplies variety of extruded finned tubes with high quality in the field. And our clients have immediate access to exactly the products they need for their particular application.And we sell these finned tubes in many countries,in more than 70 countries.
Specifications For Various Types Of Finned Tubes We offer
| Type | Description | Base tube | Fin specification (mm) |
| O.D. (mm) | Fin pitch | Fin height | Fin thick |
| Embedded | G-type fin tueb | 16-63 | 2.1~5 | <17 | ~0.4 |
| Extruded | Single metal combined metal | 8-51 | 1.6~10 | <17 | 0.2-0.4 |
| Low fin tube t-type fin tube | 10-38 | 0.6~2 | <1.6 | ~0.3 |
| Bamboo tube corrugated tube | 16-51 | 8.0~30 | <2.5 | / |
| Wound | l/kl/ll type fin tube | 16-63 | 2.1~5 | <17 | ~0.4 |
| String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
| U-type | U-type tube | 16-38 | / | / | / |
| Welding | HF-welding fin tube | 16-219 | 3~25 | 5~30 | 0.8-3 |
| H/HH type fin tube | 25-63 | 8~30 | <200 | 1.5-3.5 |
| Studed fin tube | 25-219 | 8~30 | 5~35 | φ5-20 |
This page talked about ASTM A179 carbon steel seamless wound fin tube.Wound L fin tube is a type of heat exchanger tube that has fins wrapped around it in an "L" shape. These fins increase the surface area of the tube, same with the other fin tubes, allowing for more efficient heat transfer. The wound L fin tube is commonly used in applications where heat exchange is necessary, such as in air conditioning systems, heat exchangers, and boilers,etc.
Advantages
In addition to increasing the surface area to improve heat transfer efficiency, the L-fin tube's compact design also allows it to achieve a higher heat transfer rate, thereby reducing the overall size and footprint of the heat exchanger or system.
L-shaped finned tubes can effectively dissipate heat and are suitable for applications requiring efficient heat dissipation. And L-finned tubes help save costs and energy. They allow the use of smaller heat exchangers, reducing material and manufacturing costs while consuming less energy during operation.
Detailes Of Bare Tube
ASTM A179 This specification covers min. wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus.
Chemical Composition (%) MAX
| Grade | C | Mn | P | Su |
| A179 | 0.06-0.18 | 0.27-0.63 | 0.035 | 0.035 |
Mechanical Properties
| Grade | Tensile Strength,min | Yield Strength (0.2%Offset,min) | Elongation |
| A179 | ksi-47,MPa-325 | ksi-26,MPa-180 | 35% |
Inspections and Tests
| Types:G-fin; L-fin; LL-fin; KL-fin; Extruded-fin Finned Tubes |
| 1.Chemical Composition |
| 2.Mechanical Properties |
| 3.Hydrostatic Test |
| 4.Pneumatic Test |
| 5.Boroscopic Inspection |
| 6.Eddy Current Test |
Application
Radiators
Air-cooled heat exchangers
Boiler economizers
Process heaters
Heat recovery steam generators (HRSG)
Chemical plants, Oil refineries, ower plants, and HVAC systems,etc.
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ASTM A179 Carbon Steel Seamless Wound L Type Finned Tube For Air Heater Images
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