A312 TP304 ASTM HFW Spiral Finned Tube With 11-13 Cr Fins For Heat Exchanger
| Attribute | Value |
|---|---|
| Base Pipe Specification & Material | ASTM A312 TP304 |
| Base Pipe Material | Stainless Steel |
| Fin Type | Spiral High Frequency Welding Finned Tube/HFW Finned Tube |
| Fin Material | 11-13 Cr |
| Base Tube/Pipe OD | 15.88-230 mm |
| Fin Pitch | 3-25 mm |
| Fin Height | 5-30 mm |
| Fin Thickness | 0.8-3 mm |
| Pipe Length | Custom-sized |
| Application | Air preheaters, Boiler, Heat exchangers, Furnace walls |
The ASTM A312 TP304 Spiral HFW Finned Tube with 11-13 Cr Fins is a specialized heat exchanger component designed for industrial applications. Constructed from TP304 stainless steel with spiral High Frequency Welded (HFW) fins containing 11-13% chromium, this tube significantly enhances heat transfer efficiency in demanding environments.
The spiral fins increase surface area by up to 10 times compared to bare tubes, enabling more efficient heat exchange in applications like boilers, condensers, and heat exchangers.
TP304 stainless steel base provides excellent corrosion resistance, while the 11-13% chromium fins offer additional protection against oxidation in harsh operating conditions.
Maintains structural integrity at elevated temperatures (up to 1450°C), making it ideal for high-temperature industrial applications.
Improves thermal performance, reducing energy consumption in heating and cooling systems for significant operational cost savings.
High Frequency Welding ensures a permanent bond between fins and base tube, providing long-term reliability with minimal maintenance requirements.
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 1.00 |
| Chromium (Cr) | 18.00-20.00 |
| Nickel (Ni) | 8.00-11.00 |
| Iron (Fe) | Balance |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa (75,000 psi) |
| Yield Strength | ≥ 205 MPa (30,000 psi) |
| Elongation (% in 50 mm) | ≥ 35% |
| Hardness (Rockwell B) | ≤ 90 HRB |
| Density | 8.0 g/cm³ (0.289 lb/in³) |
| Melting Point | 1400-1450 °C (2552-2642 °F) |
- Heat exchangers for industrial processes
- Boiler systems in power plants
- Air preheaters for energy recovery
- Economizers in steam generation systems
- Condensers in refrigeration units
- Industrial heating and cooling systems
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