Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A249 TP304 Stainless Steel Extruded Heat Exchanger Finned Tube
YUHONG Group can handle kinds of projects, such as heat exchanger / boiler projects, marine projects, oil & gas projects etc.We supply variety of extruded fin tubes in the industry. All of our products are domestically sourced, developed, and produced, that means our customers have immediate access to exactly the products they need for their particular application. And we can make sure that you can get products with highest quality and manufacturing standards and a local, concerned, customer service presence.
Specifications For Various Types Of Finned Tubes
| 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 | |
Tube Material : Materials Carbon Steel ,Alloy Steel ,Stainless Steel and Corrosion-resistance Steel and some other material.
General Specifications
Tube/Pipe Size: 5/8.00″ to 2″ OD
Fin Height: 10 mm to 50.8mm
Fin Thickness: 0.3mm ~ 0.6 mm
Fin Pitch: 1 to 20 fins per inch
Features Of Finned Tube
Easy installation
High-performance
Easy installation
Less space required
Optimized surface
Finest technology used
Less energy consumption
Increased reliability
Low maintenance
High mechanical resistance
Compact design,etc
This page is about ASTM A249 TP304 Extruded Single Metal Gombined Metal stainless steel fin tube with fin general material copper / aluminum and we sell these fin tubes in over 70 countries.
Fin tubes are used in many different industries. These tubes have a finned surface, which increases their surface area and allows them to transfer heat more efficiently. Because of that,this makes them ideal for applications where high heat transfer rates are required.And about this fin tube,the fin type is formed from a bi-metallic tube consisting of an aluminium outer tube and an inner tube of almost any material. Besides,the fin is formed by rolling material from the outside of the exterior tube to give an integral fin with excellent heat transfer properties and longevity. Extruded fin offers excellent corrosion protection of the base tube.
Detailes Of ASTM A249Tube
ASTM A249 This specification covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels , with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.
Chemical Composition (%)--MAX
| Grade | C | Mn | P | Su | Si | Cr | Ni |
| TP304 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18-20 | 8-11 |
Mechanical Properties
| Grade | Tensile Strength,min | Yield Strength (0.2%Offset,min) | Elongation | Rockwell Hardness |
| TP304 | ksi-75,MPa-515 | ksi-30,MPa-205 | 35% | B90 |
Inspections and Tests
| Inspections and Tests: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 | |||
| 7.Tensile Test (only for bimetallic tube) |
Related Industries Involved
Chemical industry
Petroleum Industry
Metallurgical industry
Power industry
Light industry
Pharmaceutical industry
Food industry
Application
Steam Coils
Air Perheaters / Air Cooling Heat Exchanger
Finned Tube Heat Exchangers
Air Coolers / Oil Coolers / Hydrogen Coolers / Generator Coolers
Waste Heat Recovery
Economizers
Boilers / Super Heaters / Fired heaters / HRSG
Steam Condensers
Heat Pipe Technology