EN 10217-7 1.4301 Extruded Finned Tube For Boilers & Air Coolers
Extruded Aluminum Fin Tubes | EN 10217-7 1.4301 Stainless Steel Base Pipe | High-Efficiency Heat Transfer Solution
Precision Engineering & Material Synergy
Our extruded fin tubes feature a corrosion-resistant EN 10217-7 1.4301 (AISI 304) stainless steel base pipe integrally bonded to high-conductivity aluminum fins. This material combination delivers:
- 3x higher heat transfer efficiency vs. bare pipes
- Galvanic corrosion resistance in wet environments
- Operating range: -50°C to +280°C
Chemical Composition Compliance
Guaranteed material traceability per EN 10217-7 & EN 573-3 standards
Table 1: Base Pipe Chemistry (EN 10217-7 1.4301 / AISI 304)
| Element | Carbon (C) | Chromium (Cr) | Nickel (Ni) | Manganese (Mn) | Silicon (Si) | Iron (Fe) |
|---|---|---|---|---|---|---|
| % Range | ≤0.07 | 17.5-19.5 | 8.0-10.5 | ≤2.0 | ≤1.0 | Balance |
Table 2: Aluminum Fin Chemistry (EN 573-3 1050A / AA1060)
| Element | Aluminum (Al) | Iron (Fe) | Silicon (Si) | Copper (Cu) | Zinc (Zn) |
|---|---|---|---|---|---|
| % Range | ≥99.50 | ≤0.40 | ≤0.25 | ≤0.05 | ≤0.05 |
Dimensional Tolerance Control
Manufactured per DIN EN ISO 9447 tolerance class Medium
Table 3: Critical Tolerances
| Parameter | Base Pipe Tolerance | Fin Tolerance |
|---|---|---|
| Outer Diameter | ±0.15 mm | ±0.1 mm |
| Wall Thickness | ±10% | N/A |
| Fin Height | N/A | ±0.2 mm |
| Fin Pitch | N/A | ±0.1 mm |
| Straightness | 1mm per 1m length | - |
Targeted Application Expertise
Optimized for thermal performance in:
- Energy Recovery Systems:
✓Waste heat boilers (WHB)
✓ Gas turbine inlet air cooling
✓ Economizers & superheaters
- Process Industries:
✓ Petrochemical cracker furnaces
✓ LNG vaporizers
✓ Distillation column condensers
- HVACR:
✓ Industrial chillers
✓ Air-cooled condensers
✓ Heat pump evaporators
Proven Industrial Experience
Serving global engineering contractors since 2012
- 2,000+ metric tons annual production capacity
- Certified Quality: PED, ISO 9001:2015, TÜV material certificates
Customization Capabilities:
✓ Fin density: 5-25 FPI (fins per inch)
✓ Tube lengths: 0.5m to 24m
✓ Header configurations: Multipass/coaxial designs
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.