ASTM A213 TP304 Serrated Finned Tubes for Waste Heat Recovery Boilers

ASTM A213 TP304 Serrated Finned Tubes are designed for industrial waste heat recovery boilers, where efficient heat transfer from hot flue gas is essential for improving energy utilization. Manufactured with TP304 austenitic stainless steel base tubes and serrated fin structures, these tubes provide an enlarged external heat transfer surface to enhance gas-side thermal performance. The segmented fin design promotes gas flow disturbance and helps improve heat exchange between flue gas and the working fluid inside the tubes. With good corrosion resistance, oxidation resistance, and fabrication characteristics, TP304 serrated finned tubes are suitable for selected industrial exhaust gas heat recovery systems. They can be manufactured according to project-specific dimensions, fin configurations, and operating requirements.

1. Waste Heat Recovery Boilers – Recover thermal energy from industrial exhaust gases to improve overall boiler efficiency.

2. Boiler Economizers – Preheat boiler feedwater by utilizing residual heat from flue gases.

3. Industrial Furnace Heat Recovery – Capture waste heat from furnace exhaust systems for improved energy utilization.

4. HRSG Systems – Support heat recovery from gas turbine exhaust gases in selected heat recovery steam generator applications.

5. Industrial Exhaust Gas Heat Exchangers – Enhance gas-side heat transfer in industrial thermal recovery systems.

Engineering considerations:

• Suitable for applications requiring increased gas-side heat transfer surface.

• Serrated fins promote gas turbulence and improve thermal interaction.

• Fin spacing and geometry should be selected according to flue gas velocity and pressure drop requirements.

• Material selection should consider operating temperature, flue gas composition, and potential corrosion conditions.

• Limited Heat Transfer Area: Serrated fins enlarge the external surface area to improve gas-side heat exchange.

• Low Gas-Side Heat Transfer Efficiency: Segmented fin geometry helps disturb the thermal boundary layer.

• Energy Loss Through Exhaust Gas: Supports recovery of residual thermal energy from industrial flue gases.

• Material Degradation: TP304 stainless steel provides corrosion and oxidation resistance in appropriately selected operating environments.

• Chemical Composition Analysis

• Tensile Test

• Hardness Test

• Hydrostatic Test

• Eddy Current Testing

• Dimensional Inspection

• Fin Pitch and Fin Height Inspection

• Fin-to-Tube Bond Quality Inspection

• Visual Inspection

• EN 10204 3.1 Material Test Certificate

• Chemical Composition Report

• Mechanical Test Report

• Dimensional Inspection Report

• Non-Destructive Testing Report

• PMI Report (If Required)