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ASTM A179 L-Type Wound Finned Tube For HRSG And Boilers

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ASTM A179 L-Type Wound Finned Tube For HRSG And Boilers

Name: ASTM A179 LType Wound Finned Tube For HRSG And Boilers
Brand: YUHONG
Price: 1 USD

Quality ASTM A179 L-Type Wound Finned Tube For HRSG And Boilers for sale

Brand Name : YUHONG

Certification : ABS, BV, ISO, ASTM, SGS

Place of Origin : China

MOQ : 200-500KGS

Price : Negotiable

Payment Terms : L/C,T/T,AT SIGHT

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）

Base Tube Standard : ASTM A179

Type : Wound, L Type, LL Type, KL Type

Bare Tube Diameter : 16mm-63mm

Fin Pitch : 2.1mm-5mm

Fin Hight : <17mm

Fin Thick : ~0.4mm

Application : Petrochemical, Power Generation, HVAC Industries

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1. What is ASTM A179 L-Type Wound Finned Tube?

ASTM A179 L-Type Wound Finned Tube is a cost-effective heat transfer solution designed for moderate-temperature applications. It features a seamless low-carbon steel base tube (ASTM A179) with L-shaped aluminum fins mechanically wound under tension. This robust construction creates maximum fin-to-tube contact area, delivering 25% higher heat transfer efficiency than bare tubes in boilers, economizers, and heat recovery units. Ideal for non-corrosive environments up to 150°C (302°F), it balances performance and budget with minimal maintenance.

2. Chemical & Mechanical Properties

Chemical Composition (ASTM A179 Base Tube)

Element	Content (%)	Role
Carbon (C)	≤ 0.06	Weldability
Manganese (Mn)	0.27–0.63	Strength
Phosphorus (P)	≤ 0.035	Purity
Sulfur (S)	≤ 0.035	Ductility
Silicon (Si)	≥ 0.10	Deoxidation
Thermal Conductivity	51.9 W/m·K (Base)	204 W/m·K (Fin)

Mechanical Properties (System)

Property	Base Tube (A179)	Aluminum Fin (1100)
Tensile Strength	≥ 325 MPa	95–125 MPa
Yield Strength	≥ 180 MPa	35–50 MPa
Max Service Temp.	260°C (500°F)	150°C (302°F)
Fin Bond Strength	–	> 35 MPa (Tested per ASTM E8)
Recommended Medium	Steam/Hot Water	Air/Gases

3. Key Applications & Value Highlights

· Power Plant Boilers: Economizer sections for flue gas heat recovery.

· HVAC Systems: Air heating coils in commercial ventilation units.

· Industrial Dryers: Conveyor belt dryers for food/paper processing.

· Thermal Oil Heaters: Secondary heat exchangers in hydraulic systems.

· Biomass Energy: Low-pressure steam generators.

4. Why Choose Our Wound Fin Tubes?
· 30% Cost Saving: Most economical finned tube solution vs. extrusion/welding.
· Easy Installation: Lightweight design reduces structural support needs.
· Scale Resistance: Smooth aluminum fins minimize ash/fouling buildup.
· Rapid Delivery: Standard sizes (OD 19–50mm, Length ≤ 12m) in stock.

ASTM A179 L-Type Wound Finned Tube For HRSG And Boilers

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