T22 Alloy Steel Seamless Fin Tube 11Cr High Frequency Welding Type for Preheater
- ASTM A192 / A192M : Seamless Carbon Steel Boiler Tubes for High-Pressure Service
- ASTM A210 / A210M : Seamless Medium-Carbon Steel Boiler and Superheater Tubes
- ASTM A179 / A179M : Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
- Tube Type:Seamless (Cold Drawn)
- Ends:Plain ends or bevel ends.
- Surface protection:black painting,anti-rust oil or varnish.
T22 Alloy Steel Seamless Fin Tube 11Cr High Frequency Welding Type Detail
General extrusion production capacity | General specifications of Extruded Fin Tubes |
Extrusion Facility: 10 finning machines. Daily capacity up to 3000 meters. Extruded fins type: solid plain and serrated. | Tube OD: 12mm min.~50.8mm(2'') max. Tube Length: 18 meters max. Fin Height: 16.5 mm max. Fin Thickness: appr. 0.4mm/0.5mm/0.6mm Fin Pitch: 1.5mm min. |
T22 Alloy Steel Seamless Fin Tube 11Cr High Frequency Welding Type Applications
Power Industry
- Boiler Air Preheaters
- Recovers heat from 540℃~580℃ flue gas to preheat combustion air (150℃~300℃), boosting boiler efficiency.
- T22 alloy resists sulfide corrosion; high-frequency welding ensures strong fin-tube bonding for low thermal resistance.
Petrochemical Industry
- Process Gas Preheaters
- Preheats reaction gases (up to 600℃) in catalytic processes, withstanding H₂S/CO₂ corrosion and 10~20MPa pressure.
- Fins stay secure under high-flow conditions, maintaining efficient heat transfer.
Metallurgy Industry
- Furnace Flue Gas Preheaters
- Recovers 600℃~700℃ waste heat to preheat combustion air (300℃~450℃) for steelmaking furnaces.
- Resists dust fouling; compact design fits industrial spaces, reducing energy consumption.
Key Advantages in Preheaters
Feature | Benefit |
540℃~700℃ heat resistance | Sustains high-temperature operation |
High-frequency welded fins | 2~3x higher heat transfer vs. bare tubes |
Corrosion/wear resistance | Reduces maintenance in harsh flue gas |
T22 Alloy Steel Seamless Fin Tube 11Cr High Frequency Welding Type Specifications
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. | 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 Alloy 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. |
T22 Alloy Steel Seamless Fin Tube 11Cr High Frequency Welding Type 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.
