Payment Terms | L/C,T/T |
Delivery Time | 7days |
Packaging Details | ply-wooden case with iron frame |
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 |
Brand Name | Yuhong |
Model Number | ASTM A249 TP304 |
Certification | ABS, BV, CCS, LR, DNV |
Place of Origin | China |
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Product Specification
Payment Terms | L/C,T/T | Delivery Time | 7days |
Packaging Details | ply-wooden case with iron frame | 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 | Brand Name | Yuhong |
Model Number | ASTM A249 TP304 | Certification | ABS, BV, CCS, LR, DNV |
Place of Origin | China | ||
High Light | ASTM A249 Welded Tube ,TP304 Stainless Steel Welded Tube |
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. This type of fin tube is widely used in fin fan air coolers in refineries, petrochemical plants, gas compression stations, and power generation systems.
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 |
Aluminum (Al1060): High thermal conductivity, lightweight, suitable for general cooling applications.
Property | Value (TP304) |
---|---|
Tensile Strength | ≥ 515 MPa |
Yield Strength | ≥ 205 MPa |
Elongation | ≥ 35% |
Hardness | ≤ 90 HRB |
Excellent Heat Transfer: The L-fin structure maintains tight contact, improving thermal efficiency.
Corrosion Resistance: TP304 provides strong resistance to moisture, chemicals, and oxidizing agents.
Mechanical Strength: Welded stainless steel tube offers durability under operating pressure.
Cost-Effective: More economical than seamless alternatives for general service conditions.
Customizable: Fins available in various heights, thicknesses, and materials per design needs.
Used extensively in air-cooled heat exchanger units (fin fan units) for:
Oil Refineries
Petrochemical Plants
Gas Processing Facilities
Power Plants
Offshore Cooling Systems
Fertilizer Plants
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.
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification:
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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