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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% |
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 | · HFW metallurgical bond. High strength, vibration-resistant, no peeling. · High hardness resists flue gas abrasion. Significantly extends service life in harsh conditions. · Matched thermal expansion with base tube. Expands/contracts as one, prevents thermal stress. · Ideal strength-toughness balance. Resists flow-induced fatigue for safe, stable operation. |
2. Key Features
- High Strength and Pressure Resistance. The base tube is made of ASME SA192 boiler-grade seamless carbon steel, offering exceptional pressure-bearing capacity, creep resistance, and high-temperature strength for safe and reliable operation.
- Exceptionally High Heat Transfer Efficiency. The unique serrated fin design dramatically increases the heat dissipation surface area and creates turbulence in the gas flow, disrupting the boundary layer. This results in significantly higher heat exchange efficiency compared to bare tubes and common finned tubes.
- High Bond Strength & Resistance to Vibration/Thermal Shock. Advanced embedded + high-frequency welding (HFW) technology ensures a metallurgical bond between the fins and the base tube. This provides superior bond strength, effectively resisting vibration and thermal stress caused by gas flow and temperature fluctuations, preventing fin loosening.
- Abrasion Resistance & Long Service Life. The carbon steel fin strip offers excellent rigidity, abrasion resistance, and corrosion resistance (suitable for specific environments), ensuring long-term durability and stable performance even in harsh operating conditions.
3. Key Applications
Power plant boiler economizers
Heat Recovery Steam Generators (HRSG) for gas turbines
Air preheaters
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
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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