Stainless Steel Seamless Pipe, ASTM A312 TP304H, Serrated Fin Tube,
For Furnace Tube
Product Introduction
The ASTM A312 TP304H Stainless Steel Serrated Fin Tube is a high-efficiency heat transfer component manufactured by
attaching serrated stainless steel fins onto a TP304H seamless base tube through high-frequency welding (HFW). The serrated design significantly increases the surface area and
enhances turbulence in gas flow, making it suitable for furnace tube convection sections where high-temperature and fouling resistance are critical.
Chemical Composition – ASTM A312 TP304H
| Element | Content (%) |
|---|
| C | 0.04 – 0.10 |
| Mn | ≤ 2.00 |
| P | ≤ 0.045 |
| S | ≤ 0.030 |
| Si | ≤ 0.75 |
| Cr | 18.0 – 20.0 |
| Ni | 8.0 – 11.0 |
| Fe | Balance |
Mechanical Properties
| Property | Value |
|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 35% |
| Max Operating Temp | Up to 700°C |
| Application Grade | High Temp / High Pressure |
Key Advantages
High-Temperature Stability
TP304H is designed for elevated-temperature environments such as
furnace convection zones.
Serrated Fin Efficiency
Serrated fins create micro-turbulence, enhancing heat transfer
while reducing ash or soot buildup.
Corrosion & Oxidation Resistance
With excellent chromium and nickel content, TP304H resists
oxidation and carburization in high-temperature gas streams.
Easy Maintenance
The serrated design helps reduce fouling and simplifies cleaning in
harsh furnace atmospheres.
Applications
Primarily used in furnace tube convection sections in:
Position: Installed in the convection section of the furnace where flue gas flows across the finned tubes,
transferring heat to internal fluids like steam, process oil, or
feed gas.
