​​HFW Finned Tube: ASTM A213 Base Tube + AISI 410(11Cr) HFW Fins for H₂S Flue Gas 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.

​​HFW Finned Tube: ASTM A213 Base Tube + AISI 410(11Cr) HFW Fins Detail

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

T22 Alloy Steel Seamless Fin Tube 11Cr High Frequency Welding Type Specifications

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.