ASTM A213 TP304 Serrated Fin Tubes | Stainless Steel High-Efficiency Heat Exchanger Tubes

ASTM A213 TP304 Serrated Fin Tubes are premium heat transfer components designed to maximize thermal performance in demanding industrial applications. Manufactured using ASTM A213 TP304 seamless stainless steel tubes as the base material, these finned tubes incorporate helically wound and continuously welded serrated fins that significantly enhance heat transfer efficiency while reducing fouling tendencies.

The serrated fin design creates controlled turbulence in the gas stream, improving heat transfer coefficients and allowing more efficient thermal energy recovery compared to conventional solid fin configurations. Combined with the excellent corrosion resistance and oxidation resistance of TP304 stainless steel, these tubes are widely used in heat exchangers, economizers, air-cooled heat exchangers, waste heat recovery systems, petrochemical plants, and power generation facilities.

ASTM A213 TP304 Serrated Fin Tubes provide an excellent balance of corrosion resistance, mechanical strength, thermal efficiency, and long-term operational reliability in both moderate and elevated-temperature environments.

• Manufactured from ASTM A213 TP304 seamless stainless steel tubing
• Helically wound and continuously welded serrated fin design
• Enhanced heat transfer performance through increased turbulence
• Excellent resistance to atmospheric and process corrosion
• Superior oxidation resistance at elevated temperatures
• Reduced fouling and easier cleaning compared to plain fin designs
• Lower pressure drop than many conventional fin configurations
• Suitable for corrosive gas streams and humid environments
• Long service life with minimal maintenance requirements

• Shell and tube heat exchangers
• Gas-to-liquid heat exchangers
• Process heat recovery units

• Boiler economizers
• Heat recovery steam generators (HRSG)
• Waste heat recovery systems

• Refinery process heaters
• Petrochemical cooling systems
• Gas treatment facilities

• Chemical processing units
• Fertilizer plants
• Food processing facilities
• Pharmaceutical production systems

Unlike conventional solid fins, serrated fins contain precisely cut segments along the fin edge. These interruptions in the fin structure create localized turbulence that continuously disrupts the thermal boundary layer surrounding the tube.

Benefits include:

• Higher heat transfer coefficients
• Improved thermal efficiency
• Reduced dust accumulation
• Better performance in dirty gas environments
• Enhanced resistance to fouling
• Lower operating costs
• Improved energy recovery rates

ASTM A213 TP304 Serrated Fin Tubes are produced by helically winding serrated stainless steel fin strips around a TP304 base tube. The fin root is continuously welded to the tube surface using high-frequency resistance welding technology, ensuring excellent thermal conductivity and mechanical integrity.

The manufacturing process provides:

• Continuous metallurgical bonding
• Uniform fin geometry
• Consistent fin spacing
• High structural stability
• Excellent heat transfer performance

The following dimensions represent common manufacturing capabilities. Customized configurations can be supplied according to thermal design requirements.

Chemical composition conforms to ASTM A213 TP304 requirements.

Mechanical properties apply to the TP304 base tube material.

Every ASTM A213 TP304 Serrated Fin Tube can be inspected according to project specifications and international quality requirements.

• Raw material certification review
• Positive Material Identification (PMI)
• Spectrometer chemical analysis

• Tube outside diameter measurement
• Wall thickness verification
• Tube length inspection
• Fin height measurement
• Fin pitch verification
• Overall finned diameter inspection

• Tensile testing
• Hardness testing
• Flattening test
• Flaring test

• Eddy Current Testing (ECT)
• Ultrasonic Testing (UT)
• Liquid Penetrant Testing (PT)
• Visual inspection

• Fin-to-tube weld inspection
• Continuous weld verification
• Bond integrity testing

• Hydrostatic testing
• Pneumatic testing upon request

TP304 stainless steel offers outstanding resistance to oxidation, moisture, atmospheric corrosion, and many industrial process media.

The serrated fin geometry disrupts boundary layers and improves thermal performance compared with plain fin designs.

Segmented fin edges minimize dust buildup and enhance self-cleaning characteristics in gas-side applications.

Continuous welded construction ensures strong fin attachment and dependable performance under thermal cycling conditions.

Improved heat recovery efficiency contributes to reduced fuel consumption and enhanced overall plant performance.

Manufacturing and inspection can be performed in accordance with:

• ASTM A213
• ASME SA213
• ASME Section I & VIII
• TEMA Requirements
• EN 10216 Standards
• Client Engineering Specifications
• Third-Party Inspection Requirements

Available third-party inspections include:

• SGS
• TÜV
• Bureau Veritas (BV)
• DNV
• ABS
• Lloyd's Register

ASTM A213 TP304 Serrated Fin Tubes provide a highly efficient solution for industrial heat transfer systems requiring corrosion resistance, enhanced thermal performance, and long-term operational stability. Their advanced serrated fin geometry improves heat recovery while minimizing fouling, making them ideal for heat exchangers, economizers, air coolers, and waste heat recovery systems operating in demanding industrial environments. By combining the proven durability of TP304 stainless steel with optimized fin technology, these tubes deliver superior efficiency, reliability, and lifecycle value for modern energy and process industries.