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Brand Name : Yuhong
Model Number : ASTM A179
Certification : DNV, BV, PED, LR, ABS, TS, CCS
Place of Origin : China
MOQ : 100KGS
Price : Negotiable
Payment Terms : L/C, T/T
Supply Ability : 1000 ton/month
Delivery Time : 7-45DAYS
Packaging Details : Ply-wooden Case /Iron Case/ Bundle with Plastic Cap
Fins : AL1060
Base Tube Material : A179
Fin Material : AL1060
Fin Thk : 0.4mm
Fpi : 9-13
Fin Materials : Aluminium, Copper
NDT : HT/ECT
Application : Air Cooler
Product Description
The ASME SA179 carbon steel wound fin tube (KL type) is manufactured by tightly winding an Aluminium 1060 strip around the base carbon steel tube. The foot of each fin strip is knurled (K) into the tube surface to improve bonding strength, and then the strip is tension wound (L) along the tube length to ensure close contact and excellent thermal conductivity. This construction provides a reliable combination of mechanical strength and heat transfer efficiency, ideal for air coolers and other heat exchanger systems.
| Element | C | Mn | P (max) | S (max) |
|---|---|---|---|---|
| Content (%) | ≤ 0.06 | 0.27–0.63 | 0.035 | 0.035 |
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 325 MPa |
| Yield Strength | ≥ 180 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 72 HRB |
| Element | Al | Si | Fe | Cu | Mn | Zn | Others (each) | Others (total) |
|---|---|---|---|---|---|---|---|---|
| Content (%) | ≥ 99.6 | ≤ 0.25 | ≤ 0.35 | ≤ 0.05 | ≤ 0.03 | ≤ 0.05 | ≤ 0.03 | ≤ 0.10 |
Knurled + wound structure for strong mechanical bonding between fin and tube
Excellent heat transfer due to full contact between fin strip and tube surface
Lightweight corrosion-resistant aluminium fins improve thermal efficiency and reduce overall weight
High mechanical strength to withstand vibration and thermal cycling in air cooler
Applications
Air cooler units in power plants and refineries
Heat exchangers in petrochemical and chemical industries
Gas compressors and condensers
Process cooling systems

Cost-effective solution for large air-cooling systems
Efficient thermal conductivity with low thermal resistance
High surface area increases heat dissipation efficiency
Long service life under continuous operation
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ASME SA179 Carbon Steel Wound Fin Tube KL Type With Aluminium 1060 Strip Images |