G Type Embedded Fin Tube, 1, 1-1/4, 1-1/2 Inch

Jan 13, 2022

The following table shows common Aluminum Embedded Finned Tube configurations:

Tube OD: 1", 1-1/4" and 1-1/2".
Tube Wall: 0.083″ minimum.
Fin Height: 1/2" and to 5/8″.
Fin Type: Solid.
Fin Thickness: 0.016″.
Number of fins: 8 to 11 fin per inch.
Fin Material: Aluminum 1060.
Tube Material: Generally carbon steel or stainless steel.
Tube Length: No practical limit.

'G' EMBEDDED FINNED TUBE (G type)
In high temperature conditions, the inlay process is used to embed the fins in the tube wall. In the processing process, the base pipe is firstly slotted; during the winding process, the steel strip will be tightly pinched in the spiral groove due to the pre-tightening force. The biggest advantage of this kind of finned tube is its good thermal performance, and the working temperature can reach 400℃.
The base tube of the inlaid fin tube is not wrapped by aluminum tape, which will cause it to be exposed to the atmosphere and be corroded. Its poor resistance to atmospheric corrosion is one of its shortcomings. Due to the need to slot in the wall of the base tube, the wall thickness of the base tube is generally greater than that of other types of finned tubes. Therefore, inlaid finned tubes are generally only used in occasions where the process temperature is greater than 300°C and less than 400°C.

MAXIMUM WORKING TEMPERATURE: 400°C.
ATMOSPHERIC CORROSION RESISTANCE: LOW.
MECHANICAL RESISTANCE: MEDIUM.
FIN MATERIALS: ALUMINIUM, COPPER, CARBON STEEL.
TUBE MATERIALS: ANY THEORETICAL LIMIT.

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Source: https://www.pipessteel.com/g-type-embedded-fin-tube-1-1-1-4-1-1-2-inch.html