Aluminum & Copper Fins Are Embedded Into SMLS Stainless Steel Tube of TP304 / TP304L

ASTM A213 / A213M : Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

More Specifications: ASTM A/ASME SA213/A249/A269/A312 etc.

Quick Detail:

Finning Facilities: 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.

Manufacturing process

The aluminum fin strip is tension wound and placed into a groove cut into the tube.

G Fin Fluted Depth: 

Appr. 0.4mm.

Surface Protection: 

Zinc or Aluminum metalized applied by an electro spray arc system coating.

Acceptance criteria:

API Standard 661(Air-Cooled Heat Exchangers for General Refinery Service) or the delivery conditions.

Accessories

Tube support box, clamp or spacer box (Materials: Aluminum, Zinc and Stainless Steel).

Delivery condition:

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.

The desiccants are put into each package for continental transporation as well.

Applications:

The common application fields are:

1. Heat exchangers units for power plant(electric, nuclear, thermal and geothermal power plants);
2. High corrosive systems (condensers, evaporators, sea water desalinations, fertilizing, urea systems, ammonia, gas, corrosive acids);
3. The petroleum, chemical and petrochemical industries;
4. The food processing and refrigeration industries;
5. Natural gas treatment;

Specifications:

Grooved G type Finned Tubes are combined with two different materials.

Competitive Advantage:

1. We have more than 10,000 square meters workshop, including 5 finning machines, daily capacity up to 3,500 meters.
2. The Grooved G type Finning Machines are designed and assembled by ourselves and we can offer you finning machine and all accessories etc...
3. The contact of manufacturing Grooved fin tubes is designed for a high wall temperature of up to 350°C.