HRSG Replacement Components Harps ASME SA213 T22 Serrated Fin Tube

Our Serrated Finned Tubes for HRSG Harp Modules are engineered to deliver exceptional heat transfer efficiency and long-term reliability in demanding combined cycle power generation environments. Manufactured from premium ASME SA213 T22 alloy steel, these finned tubes are specifically designed for use in Heat Recovery Steam Generator (HRSG) harp assemblies where elevated temperatures, cyclic operation, and corrosive flue gas conditions require superior metallurgical performance.

The serrated fin configuration enhances turbulence within the gas stream, reducing the thermal boundary layer and significantly improving heat transfer efficiency compared with plain fin designs. This optimized geometry enables compact module construction while maximizing energy recovery from exhaust gases.

Designed to meet stringent industry requirements, our serrated finned tubes undergo comprehensive quality control procedures to ensure dimensional accuracy, metallurgical integrity, and dependable service performance throughout the operational life of the HRSG system.

• Manufactured from certified ASME SA213 T22 seamless alloy steel tubes
• Serrated fin profile for enhanced heat transfer performance
• Excellent resistance to high-temperature oxidation and creep
• Suitable for cyclic operating conditions in combined cycle plants
• Precision fin welding ensuring strong metallurgical bonding
• Tight dimensional tolerances for harp module fabrication
• Custom lengths and fin configurations available
• Full traceability from raw material to final inspection
• Compliance with customer specifications and international standards

Serrated finned tubes manufactured from SA213 T22 are widely used in:

• Heat Recovery Steam Generator (HRSG) harp modules
• Combined Cycle Power Plants (CCPP)
• Economizers
• Evaporators
• Superheaters
• Reheaters
• Waste Heat Recovery Boilers
• Industrial cogeneration systems

The following dimensions represent common manufacturing capabilities. Customized configurations can be supplied upon request.

ASME SA213 T22 is a chromium-molybdenum alloy steel developed for elevated temperature service. The alloy offers an excellent balance of strength, oxidation resistance, creep resistance, and weldability, making it a preferred choice for HRSG tubing applications.

These mechanical characteristics provide excellent resistance to thermal fatigue and long-term creep exposure encountered in HRSG service.

Quality assurance forms an integral part of our manufacturing process. Each production batch may undergo the following inspections based on customer requirements:

• Tube outside diameter verification
• Wall thickness measurement
• Fin height and pitch inspection
• Straightness examination
• Overall length verification

• Hydrostatic Testing
• Eddy Current Testing
• Ultrasonic Testing (UT)
• Magnetic Particle Inspection (MPI) where applicable
• Dye Penetrant Testing (PT) for weld evaluation

• Positive Material Identification (PMI)
• Chemical composition analysis
• Mechanical property testing
• Hardness testing

• Mill Test Certificates (EN 10204 3.1)
• Heat number traceability records
• Inspection reports
• NDE reports
• Dimensional inspection reports

Compared with conventional solid fins, serrated fins provide several operational benefits:

• Increased turbulence for superior heat transfer efficiency
• Reduced fouling tendency through improved gas flow distribution
• Enhanced thermal effectiveness
• Improved overall boiler efficiency
• Potential reduction in heat exchanger size and weight
• Lower lifecycle operating costs

Backed by extensive manufacturing expertise and rigorous quality management, our serrated finned tubes are designed to meet the demanding requirements of modern power generation facilities. Every product is manufactured with a focus on reliability, performance, and compliance, helping customers achieve improved thermal efficiency and long-term operational confidence.

For project-specific requirements, our engineering team can provide customized fin configurations, material selections, and inspection programs tailored to your HRSG harp module design.