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ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
Specifications
Brand Name :
Yuhong
Certification :
ABS, BV, DNV, CCS, LR
Place of Origin :
China
MOQ :
200-500KGS
Price :
Negotiable
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）
Bare Tube Diameter :
16-63 MM
Fin Pitch :
2.1-5 MM
Fin Height :
<17 MM
Fin Thick :
~0.4 MM
Application :
HVAC Systems, Industrial Cooling, Air Coolers and Heat Exchangers
Bare Tube Specification&Material: :
ASTM A249 TP304
Description

1. What is ASTM A249 TP304 L-Type Wound Finned Tube with Al1060?

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.

2. Chemical & Mechanical Properties

Chemical Properties

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.
• Withstands organic acids and chlorides.

Aluminum 1060 Fins

• Al: 99.6% min, Fe+Si: ≤0.40%, Cu: ≤0.05%.

• Superior thermal conductivity (235 W/m·K).
• Non-toxic and oxidation-resistant.

Synergy

• Anodized fin roots prevent galvanic corrosion at steel-aluminum interfaces.

• Stable in pH 3–12 environments.

Mechanical Properties

Component

Mechanical Performance

Key Features

ASTM A249 TP304 Base Tube

• Tensile Strength: 515–860 MPa
• Yield Strength: 205 MPa (min)
• Hardness: 70–90 HRB.

• Pressure rating: 25 MPa at 150°C.
• Cryogenic toughness (-196°C).

Aluminum 1060 Fins

• Tensile Strength: 70–110 MPa
• Elongation: 15–25%
• Hardness: 23 HB.

• Lightweight (2.71 g/cm³) for 30% weight reduction.

Bond Performance

• Shear Strength: ≥40 MPa.
• Vibration Resistance: No fin loosening at 50 Hz.

• Thermal cycling stable (ΔT 300°C, 5,000 cycles).

3. Key Applications

·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.

ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems

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ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems

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Product Detail
Brand Name :
Yuhong
Certification :
ABS, BV, DNV, CCS, LR
Place of Origin :
China
MOQ :
200-500KGS
Price :
Negotiable
Payment Terms :
TT, LC
Contact Supplier
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems
ASTM A249 TP304 L-Type Wound Finned Tube With Al1060 For HVAC Systems

YUHONG HOLDING GROUP CO., LTD

Verified Supplier
2 Years
ningbo
Since 1990
Business Type :
Manufacturer, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Heat Exchanger Tube, Studded Tube, Duplex Stainless Steel Heat Exchanger Tube
Total Annual :
50M-70M
Employee Number :
50~800
Certification Level :
Verified Supplier
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