The reason why SA179 Embedded Fin Tubes was chosen for the heat exchanger was due to considerations of material properties, thermodynamic advantages, structure, and cost.

Here is the professional fin pipe factory of the technical rationale for selecting SA179 G Type Embedded Aluminum Fin Tubes:

‌Technical Rationale for Selecting SA179 G Type Grooved-In Aluminum Fin Tubes for Heat Exchange‌

The selection of SA179 G Type grooved-in aluminum fin tubes as core heat exchanger components is substantiated by the following technical and operational advantages:

I. SA179 Embedded Fin Tube Material Properties & Thermodynamic Advantages

1. ‌High-Efficiency Heat Transfer Design‌
   SA179 low-carbon steel base tube (C ≤ 0.06%) provides thermal conductivity of ‌45 W/(m·K)‌ – over 3× higher than stainless steel – significantly accelerating heat transfer‌1. Aluminum fins (Al 1050/1060) form a metallurgical bond with the base tube via grooved-in processing, eliminating contact resistance. Proven heat exchange efficiency is 22% higher than stainless steel tubes‌.

2. ‌Bimetallic Synergy‌

   • ‌Base Tube Strength‌: SA179 seamless steel offers tensile strength ≥325 MPa, yield strength ≥180 MPa, suitable for high-pressure/high-temperature fluids (e.g., 300°C steam)‌.
   • ‌Fin Enhancement‌: Aluminum fin density (394 FPM) expands heat dissipation area by 8-10×, increasing forced convection efficiency by 40%‌.

II. SA179 Embedded Fin Tube Structural Reliability & Environmental Adaptability

1. ‌Vibration Resistance & Durability‌
   Mechanically locked fins in spiral grooves combined with cold-rolled base tube surface (roughness ≤Ra 1.6 μm) prevent detachment under fluid-induced vibration, ideal for air-cooler fan operations‌.

2. ‌Corrosion Management‌
   The steel-aluminum composite offers balanced economy and corrosion resistance in pH 6-9 environments with Cl⁻

III. SA179 Embedded Fin Tube Economic & Engineering Flexibility

1. ‌Lifecycle Cost Advantage‌

   • 40-60% lower material cost vs. SA213 T-series alloy tubes‌;
   • Anti-fouling design extends cleaning cycles by 50%, reducing downtime losses‌.

2. ‌Customization Capability‌
   Base tube substitution with SA192 (boiler tube) or SA213 T-series (Cr-Mo alloy) supports >450°C service; optional spiral/plain/wavy fins optimize fluid turbulence‌.

IV. SA179 Embedded Fin Tube Industry Validation & Applications

• ‌Power Generation‌: Gas turbine exhaust heat recovery systems (tolerates 0-40 Hz vibration);
• ‌Petrochemical‌: Atmospheric/vacuum unit air coolers (service life >8 years in sulfide corrosion environments)‌.

‌Selection Logic‌: ‌SA179 base tube ensures pressure integrity + aluminum fins maximize heat dissipation + grooved-in structure resolves thermal expansion mismatch‌ – achieving a Pareto-optimal balance of efficiency, longevity, and cost‌.