ASME SA249 TP304 Extruded Fin Tubes | 304 Stainless Steel for Heat Exchangers

The ASME SA249 TP304 Extruded Fin Tube is a high-performance heat transfer element consisting of a stainless steel 304 base tube (conforming to ASME SA249) and extruded aluminum fins (typically 1060 or 6063 alloy). The fins are formed from an outer aluminum sleeve that is cold-rolled and extruded, providing an integral bimetallic structure. This process ensures a perfect mechanical bond between the fin and the tube, resulting in high thermal efficiency with zero contact thermal resistance and excellent protection against atmospheric corrosion.

• Superior Heat Transfer: Extruded fins offer high heat transfer efficiency compared to wound or L-footed fins because there is no air gap.
• High Corrosion Resistance: The aluminum sleeve entirely encloses the SA249 TP304 base tube, protecting it from atmospheric and chemical corrosion, making it ideal for harsh or coastal environments.
• Robust Construction: The fins are strong, rugged, and difficult to damage or deform, allowing for easy cleaning using steam or high-pressure water.
• Excellent Thermal Stability: The seamless integration of the fin and tube allows for efficient performance across high-temperature fluctuations up to 350°C.
• High-Pressure Resistance: Suitable for high-pressure systems where reliable heat exchange is critical.

• Standard: ASME SA249 / ASTM A249
• Base Tube Material: Stainless Steel TP304/TP304L (Austenitic)
• Fin Material: Aluminum (1060 or 6063)
• Fin Type: Integral Extruded Finned Tubes
• Base Tube OD: 10 mm to 51 mm (Standard 1" or 3/4" available)
• Fin Height: 5 mm to 16 mm
• Fin Pitch: 1.8 mm to 10 mm (approx. 7 to 13 fins per inch)
• Length: Up to 20 meters (customizable)
• Ends: Plain or Beveled Ends

• Air Cooled Heat Exchangers (ACHE): Used in oil and gas, petrochemical, and refining industries.
• Power Plants: Steam condensers and waste heat recovery units.
• HVAC & Refrigeration: Air conditioning systems and evaporators.
• Marine & Offshore: Cooling systems.
• Industrial Dryer: Used in textile, agricultural, and industrial processing.

• Standards: ASME SA249
• Inspection: Dimensional inspection, Bond integrity tests, 100% X-ray test, or Third-party inspection (as per customer request).