ASTM B338 Gr. 2 Titanium Heat Exchanger Fin Tube , Spiral Extruded
Fin Tube
ASTM B338: Seamless and Welded Titanium and Titanium Alloy Tubes
for Condensers and Heat Exchangers
Detail: | General extrusion production capacity | General specifications of DR Type-Extruded Fin Tubes | Extrusion Facility: 10 finning machines.
Daily capacity up to 3000 meters.
Extruded fins type: solid and serrated.
| Tube OD: 50.8mm(2'') max.
Tube Length: 18 meters max.
Fin Height: 16.5 mm max.
Fin Thickness: appr. 0.4mm
Fin Pitch: 1.5mm min. |
Description:
Manufacturing Process
A smooth core tube is inserted into an aluminum sleeve and
then the fins are extruded out of the aluminum sleeve.
Fins Type:
The fins are solid plain or serrated into 12,16 or
24 segments or as your design.
Unfinned Section
Both plain ends with appr. 10mm~50mm and gaps (Unfinned Section) in the middle.
Surface Coating
Both bare ends of Bimetallic Finned Tubes shall be Zinc or Aluminum that metallized applied by an electro spray arc system coating.
Accessories
Tube Support Box, Clamp or Spacer Box(Materials: Aluminum, Zinc or
Stainless Steel).
Applications:
The common application fileds 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
acids);
- The petroleum, chemical and petrochemical industries;
- The food processing and refrigeration industries;
- Natural gas treatment;
Specifications:
Extruded Bimetallic Finned Tube is combined with two different
materials.
| Items | General Materials | Popular ASTM Materials | | Core Tube Material | Any metallic materials, as carbon steel, low-alloy steel,
stainless steel, brass, copper, cooper-nickel alloys,
aluminum bronze, nickel alloys etc.
(Core tube with extremely thin wall materials can be applied.) | 1. Carbon Steel: A179, A192,SA210 Gr A1/C,A106 Gr B
2. Stainless Steel: TP304/304L,TP316/TP316L/316Ti,
A789 S31803/S2205 etc...
3. Copper:UNS12200/UNS14200/UNS70600,
CuNi70/30,CuNi 90/10
4. Titanium: B338 Gr 2 | | Fins Material | 1. Aluminum
2. Copper. | 1. Aluminum(Alu.1100,Alu.1060,Alu.6063)
2. Copper. |
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 | 4, 5, 6, 7, 8, 9, 10, 11, 12 | 3/4 | 3/8,1/2,5/8 | .015/.016/ .020 | 4, 5, 6, 7, 8, 9, 10, 11, 12 | 1 | 3/8,1/2,5/8 | .015/.016/ .020 | 4, 5, 6, 7, 8, 9, 10, 11 | 1 1/4 | 3/8,1/2,5/8 | .015/.016/ .020 | 4, 5, 6, 7, 8, 9, 10, | 1 1/2 | 3/8,1/2,5/8 | .015/.016/ .020 | 4, 5, 6, 7, 8, 9, 10, 11 | 1 3/4 | 3/8,1/2,5/8 | .015/.016/ .020 | 4, 5, 6, 7, 8, 9, 10 | 2 | 3/8,1/2,5/8 | .015/.016/ .020 | 4, 5, 6, 7, 8, 9, 10 | Please email us for more information. |
Competitive Advantage: - We have more than 10,000 square meters workshop, including 10
extrusion finning machines, daily extrusion capacity up to 3,000
Meters.
- The extrusion finning machines are designed and assembled by
ourselves and we can offer you finning machines, extrusion muff
sleeves and all accessories (extrusion finning disks) etc...
- DR-extruded bimetallic fin tubes maximum operating temperature: 300
degree. The transfer coefficient remains steady.
- DR-extruded bimetallic fin tubes have stronger fins than other
mechanical fins, like L, LL, KL, and G, so it is much easier to
clean.
- In application of high stress and corrosive condiction, DR-extruded
bimetallic fin tubes provides an excellent technical and economical
savings in comparsion to a costlier single alloy tube, as the use
of costlier material is reduced to the min.
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