We are professional ASME SA789 UNS S32205 UNS S31803 UNS S32750 UNS
S32760 UNS S31500 SAF 2205 2507 Duplex SS Cooper Grooved G Type Fin
Tubes Pips Finned Tubes Pipes Tubings from china
ASTM A789 / A789M : Seamless and Welded Ferritic/Austenitic
Stainless Steel Tubing for General Service
Standards: ASTM/ASME A789/SA789, A790/SA790,A450,A530
Material: UNS S31803(Cr22Ni5Mo3/1.4462)/2205,UNS S32750(1.4410),UNS
G Fin Finning Lines: 5 finning machines.
Daily capacity up to 3500 meters.
Tube OD: 50.8mm(2') max.
Tube Length: 18,000mm max.
Fin Height: 16.5 mm max.
Fin Thickness: generally 0.4mm ~0.6mm
Fin Pitch: 2.1 mm (12FPI) min.
The aluminum fin strip is tension wound and placed into a groove
cut into the tube.
G Fin Fluted Depth:
Zinc or Aluminum metalized applied by an electro spray arc system
API Standard 661(Air-Cooled Heat Exchangers for General Refinery
Service) or the delivery conditions.
Tube support box, clamp or spacer box (Materials: Aluminum, Zinc
and Stainless Steel).
Tube ends are square cut, free burrs, internally dried and air
blown clean, externally coated with varnish at both ends of G-Fin
Embedded Finned Tube.
Packing: The desiccants are put into each package for continental
transporation as well.
The common application fields are:
- Heat exchangers units for power plant(electric, nuclear, thermal
and geothermal power plants);
- High corrosive systems (condensers, evaporators, sea water
desalinations, fertilizing, urea systems, ammonia, gas, corrosive
- The petroleum, chemical and petrochemical industries;
- The food processing and refrigeration industries;
- Natural gas treatment;
Grooved G type Finned Tubes are combined with two different
|Items||General Materials||Popular ASTM Materials|
|Core Tube Material|
carbon steel, ow-alloy steel,
stainless steel, brass, copper,
aluminum bronze, nickel alloys.
1. Carbon Steel: A179, A192,SA210 Gr A1/C,A106 Gr B
2. Stainless Steel: TP304/304L,TP316/TP316L/316Ti,
A789 S31803/S2205 etc...
|All dimensions are in Inches and specification upon your requests.|
|Tube OD||Fin Height||Fin Thickness||Fins per Pitch(Density)|
|5/8||3/8,1/2||.015/.016/ .020||6, 7, 8, 9, 10, 11, 12|
|3/4||5/8,1/2||.015/.016/ .020||6, 7, 8, 9, 10, 11, 12|
|1||5/8,1/2||.015/.016/ .020||6, 7, 8, 9, 10, 11, 12|
|1 1/4||5/8,1/2||.015/.016/ .020||6, 7, 8, 9, 10, 11, 12|
|1 1/2||5/8,1/2||.015/.016/ .020||6, 7, 8, 9, 10, 11, 12|
|Please email us for more information.|
- We have more than 10,000 square meters workshop, including 5
finning machines, daily capacity up to 3,500 meters.
- The Grooved G type Finning Machines are designed and assembled by
ourselves and we can offer you finning machine and all accessories
- The contact of manufacturing Grooved fin tubes is designed for a
high wall temperature of up to 350°C.