L Type Wound Finned Tube ASME SA249 TP316L With Al1100 For Air Cooler
L Type Fin Tube Wound Fin Tube ASME SA249 TP316L With Al1100 For Air Cooler
Product Overview
The L Type Fin Tube, also known as a wound fin tube, is manufactured using ASME SA249 TP316L stainless steel as the base tube, with Aluminum 1100 (Al1100) fins mechanically wound around the tube. This type of finned tube is widely used in air coolers, heat exchangers, and condensers, offering high efficiency, corrosion resistance, and durability.
Key Features
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Base Tube Material: ASME SA249 TP316L Stainless Steel
- Corrosion-resistant in high-temperature and chemical environments.
- Provides high mechanical strength and longevity.
- Ideal for marine, power plants, and chemical industries.
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Fin Material: Aluminum 1100 (Al1100)
- Excellent thermal conductivity, ensuring efficient heat transfer.
- Lightweight and resistant to oxidation.
- Provides an economic and effective cooling solution.
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Fin Type: L Type Wound Fin
- Mechanically wound aluminum fins tightly grip the base tube.
- Ensures maximum heat transfer with minimal thermal resistance.
- Ideal for low to moderate temperature applications.
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Application: Air Coolers & Heat Exchangers
- Used in air-cooled condensers, refrigeration systems, and process cooling.
- Suitable for HVAC systems, petrochemical plants, and power stations.
Chemical Composition
Base Tube: ASME SA249 TP316L Stainless Steel
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 16.00 - 18.00 |
| Nickel (Ni) | 10.00 - 14.00 |
| Molybdenum (Mo) | 2.00 - 3.00 |
Fin Material: Aluminum 1100 (Al1100)
| Element | Composition (%) |
|---|---|
| Aluminum (Al) | ≥ 99.0 |
| Copper (Cu) | ≤ 0.05 |
| Iron (Fe) | ≤ 0.40 |
| Silicon (Si) | ≤ 0.45 |
Mechanical Properties
Base Tube: ASME SA249 TP316L Stainless Steel
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 90 HRB |
Fin Material: Aluminum 1100 (Al1100)
| Property | Value |
|---|---|
| Tensile Strength | 90 - 130 MPa |
| Yield Strength | 30 - 50 MPa |
| Elongation | ≥ 20% |
Advantages of L Type Fin Tube
✅ High Heat Transfer Efficiency – Wound aluminum fins provide large surface area for heat exchange.
✅ Corrosion Resistant – 316L stainless steel resists oxidation and chemical damage.
✅ Lightweight & Cost-effective – Aluminum fins improve thermal performance while reducing weight.
✅ Mechanical Durability – L-type fins are tightly wound, ensuring good adhesion and heat dissipation.
✅ Wide Applications – Used in power plants, air-cooled condensers, and refrigeration systems.
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