ASTM A312 TP304 Stainless Steel HF Welded Finned Solid Tubes for Heating Furnaces
ASTM A312 TP304 Stainless Steel HF Welded Finned Solid Tubes for Heating Furnaces
Chemical Composition (%) Maximum
| Grade | C | Mn | P | S | Si | Cr | Ni |
| TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 |
Mechanical Properties
| Grade | Tensile Strength min | Yield Strength min | Elongation in 2" or 50mm min |
| TP304 | 75ksi (515 MPa) | 30ksi (205 MPa) | 35% |
Stainless steel HF welded finned solid tubes are specifically designed for waste heat recovery from industrial furnace flue gas, heat exchange in convection sections, and auxiliary heating of process furnaces.
Core Advantages of Stainless Steel HF Welded Finned Solid Tubes in Furnace Service
ASTM A312 TP304 base tubes are resistant to high-temperature oxidation and suitable for continuous operation in furnaces with flue gas temperatures of 250–400°C.
High-frequency welded fins provide a strong metallurgical bond, preventing fin loosening under furnace vibration and thermal expansion.
Anti-scaling and easy-to-clean, the smooth stainless steel surface reduces dust/ash adhesion to the furnace tail heating surface.
Corrosion resistance: Prevents pitting and rust caused by low-temperature condensation in the furnace.
Related Furnace Types
Industrial Process Furnaces
Refinery & Petrochemical Furnaces
Waste Incineration & Biomass Furnaces
Hot Blast Furnace & Thermal Oil Furnace
Key Advantages
*Power Generation (Thermal & Waste-to-Energy):
Boiler Economizers & Air Preheaters
Waste Heat Recovery (WHR) Systems
Condensers & Reheaters
*Chemical & Petrochemical Industry:
Process Heat Exchangers
Reactor Coils & Reboilers
Vaporizers & Condensers
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