ASTM A335 P22 Alloy Steel HFW Welded Finned Solid Tubes for HRSG Superheater

Chemical Composition (%) Maximum

Mechanical Properties

Core Advantages of Alloy Steel A335 P22 HFW Welded Finned Solid Tubes for HRSG Superheater

Excellent High-Temperature Creep Resistance:Alloy steel grades like ASTM A335 P22 maintain stable mechanical strength under long-term high temperature and high pressure, suitable for HRSG superheater severe operating conditions

Strong High-Temperature Oxidation & Corrosion Resistance:Alloy composition forms a dense protective oxide layer, resisting flue gas corrosion, sulfur corrosion and high-temperature oxidation in HRSG exhaust environment.

High Heat Transfer Efficiency:HFW solid finned structure greatly enlarges heat exchange area, improves thermal conductivity and enhances superheater heat absorption and steam heating performance.

Low Thermal Resistance & Stable Heat Conduction:Seamless base tube plus integrated HFW welding avoids gap thermal resistance, ensuring continuous and efficient heat transfer for superheater system.

High Structural Safety & Long Service Life:Integral welded structure withstands high pressure, thermal shock and flue gas scouring, reducing maintenance frequency and extending long-term operation life of HRSG superheater.

Key Advantages

Power plant combined cycle HRSG (Heat Recovery Steam Generator) superheater, reheater, evaporator and economizer sections

Thermal power plant high-pressure & high-temperature boiler heat exchange tube bundles

Petrochemical refining furnace, cracking furnace and process heater convection coils

Hydrogenation unit and catalytic reforming plant high-temperature heat exchangers

Coal chemical industry syngas coolers and high-temperature waste heat recovery systems

Waste-to-energy power plant flue gas heat recovery and heat exchange equipment