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| Brand Name: | Yuhong |
| Model Number: | ASTM A249 TP304 |
| MOQ: | 100kgs |
| Price: | Negotiable |
| Payment Terms: | L/C,T/T |
| Attribute | Value |
|---|---|
| Tube Ends | Plain |
| Fin Spacing | 2.0mm-20mm |
| Fpi | 9-13 |
| Tube Diameter | 3/8 inch |
| Fin Thk | 0.4mm |
| Packing | Ply-wooden Case With Iron Frame |
The ASTM A249 TP304 stainless steel L-fin tube is a welded austenitic stainless steel tube wrapped with helically wound L-type fins, typically made from aluminum or stainless steel. The L-shaped fin is tightly wound under tension to ensure close metal-to-metal contact, which improves heat transfer performance.
Base Tube: ASTM A249 TP304 Stainless Steel
| Element | Content (%) |
|---|---|
| C | ≤ 0.08 |
| Mn | ≤ 2.00 |
| Si | ≤ 0.75 |
| P | ≤ 0.045 |
| S | ≤ 0.030 |
| Cr | 18.0 - 20.0 |
| Ni | 8.0 - 11.0 |
| Fe | Balance |
Fin Material Options:
| Property | Value (TP304) |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 90 HRB |
Used extensively in air-cooled heat exchanger units (fin fan units) for:
Specific Role in Air Coolers:
Installed in the convection section where ambient air is blown across the finned surface to remove heat from process fluids flowing inside the tube.
