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ASME SA192 Carbon Steel Fin Tube Serrated With CS Fin Strip For Economizer And Heat Recovery
This high-efficiency heat exchange component is specifically engineered for boiler economizers and industrial waste heat recovery systems. It utilizes ASME SA192 carbon steel as the base tube material, the carbon steel fin strip is helically wound and securely welded onto the outer surface of the base tube through high-frequency welding process, forming distinctive serrated fin geometry.
This unique design effectively disrupts fluid boundary layers, enhances turbulence, and significantly improves heat transfer efficiency (20%-30% higher than smooth fins). The product is particularly suitable for harsh operating conditions including high-temperature/pressure environments and dusty flue gas applications in coal-fired boilers, heat recovery steam generators (HRSG), and petrochemical plants, ensuring both energy efficiency improvement and long-term operational reliability.
1.Chemical & Mechanical Properties
| ASME SA192 Chemical Composition (%) |
| C | Mn | P | S | Cr | Ni |
| 0.15% - 0.35% | 0.30% - 0.90% | ≤ 0.035% | ≤ 0.035% | ≤ 0.30% | ≤ 0.25% |
| CS Fin Strip Chemical Composition (%) |
| C | Mn | P | S | Cr | Ni |
| 0.15% - 0.30% | 0.50% - 1.20% | ≤ 0.035% | ≤ 0.035% | ≤ 0.30% | ≤ 0.25% |
Mechanical Properties
| Component | Mechanical Performance | Key Features |
ASME SA192
Base Tube | · Tensile Strength: 415 - 535 MPa
· Yield Strength: ≥ 240 MPa
· Elongation: ≥ 30%
· Hardness: 160-190 HB | · Excellent cold bending and welding properties, fabrication in complex piping systems. · Long-term service temperature up to 400°C with strong creep resistance. · More economical than alloy steel tubes while meeting pressure requirements for standard boilers and heat exchangers. |
| CS Fin Strip | · Tensile Strength: 350 - 500 MPa · Yield Strength: ≥ 200 MPa
· Elongation: ≥ 25%
· Hardness: 160-210 HB | · High tensile strength maintains structural rigidity after forming, resistant to deformation or breakage under long-term use. · Serrated fin shape can disrupt fluid flow and maximize heat transfer efficiency. · Ensures strong metallurgical bonding with carbon/alloy steel base tubes (e.g., SA192, SA210) via HFW, eliminating weak joints. · Wide operating temperature range (-20°C~400°C), with optional galvanizing/aluminizing for corrosive environments. |
2. Key Features
(1) The installation is simple and economical. The maximum length of high frequency welding spiral fin tube can reach 6 meters, which reduces the connection points, makes the installation more economical and fast, and reduces the probability of water leakage at the joint.
(2) It is easy to maintain. After the installation of high frequency welding spiral fin tube, it is no longer necessary to maintain.
(3) High efficiency, high frequency welding spiral finned tube for fin and steel tube winding full contact welding, heat dissipation area is more than 8 times of smooth tube, internal more smooth, internal flow resistance is small.
(4) Long service life, high mechanical strength of fin and tube combination, tensile strength of more than 200MPa, both inside and outside of the tube are hot-dip galvanized.
3. Key Applications
Power Industry
Power plant boiler economizers
Heat Recovery Steam Generators (HRSG) for gas turbines
Air preheaters
Petrochemical Industry
Waste heat recovery in catalytic cracking units
Convection sections of petrochemical heaters
Natural gas processing equipment
Industrial Waste Heat Recovery
Sintering machine waste heat recovery in steel plants
Waste heat boilers for cement kilns
Process heat exchangers in chemical plants
Other Industrial Fields
Drying systems in paper industry
Heat exchange equipment for food processing
Waste heat utilization for marine diesel engines
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ASME SA192 Carbon Steel Serrated Fin Tube With CS Fin Strip For Economizer And Heat Recovery Images
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