ASTM A192 L Type Finned Tube with Al1060 Fins For Air-cooled heat exchangers

ASTM A192 L Type Finned Tube with Al1060 Fins For Air-cooled heat exchangers

This product is an L rooted finned tube with base tube material ASTM A192 and fin material Al1060. It is designed for gas-liquid or gas-gas heat transfer in shell-and-tube heat exchangers, waste heat boilers, economizers, and industrial radiators. It integrates pressure resistance of carbon steel and high thermal conductivity of aluminum, with stable structural adhesion, widely used for industrial fluid heat exchange and air cooling systems.

Core Material Specifications

1. Base Tube: ASTM A192

Seamless carbon boiler steel pipe manufactured in accordance with American standard.Working temperature range: -20℃ ~ 425℃, max allowable working pressure up to 10MPa. Uniform internal structure ensures stable physical performance under high temperature condition.

1.1 Chemical Composition of ASTM A192 (Heat Analysis)

1.2 Mechanical Properties of ASTM A192 at Room Temperature

2. Fin Material: Al1060

Industrial pure aluminum with aluminum purity ≥99.6%, thermal conductivity reaches 234W/(m·K). Good ductility supports continuous winding production, and natural oxide layer provides basic atmospheric

3. Material Equivalent

Comparison VS Other Types of Finned Tubes

1. VS Embedded Finned Tube

L-type winding process will not damage the integrity of base tube, thus retaining better pressure bearing capacity. While embedded finned tube has more stable structure under long-term strong vibration environment.

2. VS High Frequency Welded Finned Tube

No welding heat affected zone exists on our products, the original physical and chemical properties of raw materials are fully retained, delivering more stable service performance in low and medium temperature scenarios. High frequency welded finned tubes are more suitable for severe high temperature and high pressure working conditions.

3. VS Stainless Steel Composite Finned Tube

Carbon steel combined with aluminum features lower procurement cost and higher cost performance, which is suitable for large-scale civil and general industrial heat exchange projects. Stainless steel finned tubes own outstanding acid and alkali corrosion resistance, applicable to heat exchange occasions with corrosive chemical medium.

Factory Quality Inspection Standard

1. Strict visual inspection to avoid fin bending, cracking and irregular arrangement

• Tightness inspection to ensure uniform contact between fins and base tube
• Individual hydrostatic pressure leakage test for all finished base pipes
• Complete certification documents including ASTM A192 mill test certificate and Al1060 aluminum material report

   

Primary Applications:

• Air-cooled heat exchangers (ACHEs) in petrochemical, refinery, and power plant.
• Boiler economizers and air preheaters (low-temperature sections)
• Compressed air aftercoolers and intercoolers
• Generator and turbine lube oil coolers
• Industrial radiators for engine or hydraulic cooling
• HVAC condenser coils and dry coolers
• Waste heat recovery units (low- to medium-temperature gas streams)

Why this combination works well for these applications:

• ASTM A192 provides high-pressure capability for steam, water, or thermal oil inside the tube
• AL1060 fins maximize heat dissipation to the air side due to excellent thermal conductivity (~234 W/(m·K))
• L-type fin foot protects the tube surface from corrosion at the fin–tube interface
• Suitable for continuous air-side temperatures up to 200°C (392°F)