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G-type Fin Tubes

Fin Materials:：Aluminum, Copper， 2205， 2507  dual phase steel
Tube Materials:：No limits
Fin Thickness:：Min: 300 µ Max: 500µ
Tube Size:：12.70mm~50.8mm
Fin Size:：7~11.5Fins/Inch Fin Height Max 16mmH

In this type of finned tubes, the fin is curled into a groove on the tube wall.

• Fin Materials: Aluminum, Copper
• Tube Materials: No limits
• Fin Thickness: Min: 300 µ
                             Max: 500µ
• MANUFACTURING PROCESS
  The manufacturing tool is made up of 2 non-cutting plates set at 90° to the axis of the base tube. The first plate effects a groove for metal spinning. The second directs the ribbon in the groove and sets the fin foot in the groove through pressure on the metal displaced for the groove. A similar plate made of tungsten carbure allows us to manufacture. Gfin tubes (finned tubes)with base tubes made of austenitic steel or exotic alloys.
  ADVANTAGES
  1) Thermal
  The fin/tube wall contact is constant because of the setting and makes it possible to use a wall temperature of up to 400° C.
  2) Mechanical
  The fin is set throughout its length and consequently does not unwind even when partially uprooted.

   

  download fin tubes (finned tubes) comparings

   

  PRODUCT DESCRIPTION TUBE MATERIAL FIN  MATERIAL TUBE SIZE FIN SIZE High Fin Tube Extruded Fin Tube All Kind of Material can be applied Aluminum A1050, A6061 15.88~50.8 7~11.5Fins/Inch Fin Height Max 16mmH L-Fin Tube (Wrap On Type) All Kind of Material can be applied Copper C1100, C1220 12.70~50.8 7~11.5Fins/Inch Fin Height Max 16mmH G-Fin Tube (Imbedded Type) Aluminum A1100, A1050, A1060 High Frequency Welded Fin Tube Carbon Steel Tube Carbon Steel Tube 12.70~160 1.5~7Fins/Inch 0.8~3.2mm. Thickness Stainless Steel Tube Stainless Steel Tube Alloy Steel Material Alloy Steel Material Integral Copper & Copper Alloy High Fin Tube C12200, C11000, C70600 C12200, C11000, C70600 15.88~22.23 5~9Fins/Inch Max 12mm.H Oval Fin Tube Carbon Steel Tube Carbon Steel Tube All Size Available 5~15Fins/Inch Stainless Steel Tube Stainless Steel Tube Alloy Steel Material Copper &Copper Alloy Tube Alloy Steel Material Copper &Copper Alloy Tube Low Fin Tube Low Fin Tube All Kind of Material -- 9.52~40 19~54Fins/Inch Turbo-C Tube Turbo-E Tube Corrugated Tube All Kind of Material -- 6.35~40 2~9Fins/Inch Inner Ridged Tube C12200 -- 7.93~15.88 60~75Fins/Inch Flower Tube C12200 -- 16.0~19.0 12~15Fins/Inch   Spec. OD range mm Grade Chemical composition Cu % Sn % Al % Ni+Co % Pb % Fe % Zn % Mn % As % P % ASME SB111 4~200 C12200 ≥99.9 - - - - - - - - 0.015~0.040 4~60 C44300 70~73 0.9~1.2 - - ≤0.07 ≤0.06 Rem. - 0.02~0.06 - 4~60 C68700 76~79 - 1.8~2.5 - ≤0.07 ≤0.06 Rem. - 0.02~0.10 - 4~60 C70600 Rem. - - 9.0~11.0 ≤0.05 1.0~1.8 ≤1.0 ≤1.0 - - 4~60 C71500 Rem. - - 29.0~33.0 ≤0.05 0.4~1.0 ≤1.0 ≤1.0 - -