YUHONG HOLDING GROUP CO., LTD
| Application | HVAC Systems, Industrial Cooling, Air Coolers and Heat Exchangers |
| Bare Tube Diameter | 16-63 MM |
| Fin Pitch | 2.1-5 MM |
| Fin Height | <17 MM |
| Fin Thick | ~0.4 MM |
| Bare Tube Specification&Material: | ASTM A249 TP304 |
| Payment Terms | TT, LC |
| Supply Ability | According to Clients' requirements |
| Delivery Time | 45-75 Days (Depend on Customer's Requirement |
| Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps） |
| Brand Name | YUHONG |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Application | HVAC Systems, Industrial Cooling, Air Coolers and Heat Exchangers | Bare Tube Diameter | 16-63 MM |
| Fin Pitch | 2.1-5 MM | Fin Height | <17 MM |
| Fin Thick | ~0.4 MM | Bare Tube Specification&Material: | ASTM A249 TP304 |
| Payment Terms | TT, LC | Supply Ability | According to Clients' requirements |
| Delivery Time | 45-75 Days (Depend on Customer's Requirement | Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps） |
| Brand Name | YUHONG | Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China | ||
| High Light | HVAC Systems Spiral Finned Tube ，Al1060 Spiral Finned Tube ，ASTM A249 Spiral Finned Tube | ||
The ASTM A249 TP304 L-Type Wound Finned Tube is a high-performance heat transfer component engineered for corrosive and high-vibration environments. It consists of a welded austenitic stainless steel base tube (ASTM A249 TP304, 18–20% Cr, 8–10.5% Ni) spirally wound with Aluminum 1060 fin strips (99.6% Al) using an L-foot mechanical locking process. The "L-Type" design features fin roots extruded into precision grooves on the tube surface under high pressure, creating a seamless, gap-free bond that eliminates thermal resistance and prevents fin loosening. This hybrid structure combines TP304’s chloride resistance with Al1060’s ultra-high thermal conductivity (235 W/m·K), ensuring reliability in aggressive media.
|
Component |
Chemical Composition |
Key Features |
|
ASTM A249 TP304 Base Tube |
• Cr: 18–20%, Ni: 8–10.5%, C: ≤0.08%, Mn: ≤2.0%, Fe: Balance. |
• Excellent pitting/crevice corrosion resistance. |
|
Aluminum 1060 Fins |
• Al: 99.6% min, Fe+Si: ≤0.40%, Cu: ≤0.05%. |
• Superior thermal conductivity (235 W/m·K). |
|
Synergy |
• Anodized fin roots prevent galvanic corrosion at steel-aluminum interfaces. |
• Stable in pH 3–12 environments. |
|
Component |
Mechanical Performance |
Key Features |
|
ASTM A249 TP304 Base Tube |
• Tensile Strength: 515–860 MPa |
• Pressure rating: 25 MPa at 150°C. |
|
Aluminum 1060 Fins |
• Tensile Strength: 70–110 MPa |
• Lightweight (2.71 g/cm³) for 30% weight reduction. |
|
Bond Performance |
• Shear Strength: ≥40 MPa. |
• Thermal cycling stable (ΔT 300°C, 5,000 cycles). |
·Chemical Processing: Sulfuric acid coolers, chlorine condensers, and solvent reactors.
·Food & Beverage: CIP-compliant pasteurizers and fermentation tanks (FDA/3-A certified).
·Power Plants: Flue gas heat recovery boilers and economizers.
·Marine Systems: Seawater-cooled condensers and desalination units.
·HVAC/R: Industrial chillers and heat pumps for humid environments.
4. Why Choose This L-Type Finned Tube?
·15% Higher Heat Transfer vs. standard spiral fin tubes.
·Zero Fin Lift-Off: L-foot locking ensures permanent bonding.
·40% Lighter than solid fin designs, reducing structural costs.
·Certified Quality: ASTM A249, ASME SA-249, ISO 9001, and PED 2014/68/EU.
·20-Year Service Life in saltwater/acid vapor environments.
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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