Embedded Finned Tubes for Boilers & Economizers A106 Gr.B Base Copper Fins

Embedded Finned Tubes (Base Tube: A106 GR.B, Fin: CU) – High-Efficiency Heat Transfer Solutions

A106 GR.B + CU Fusion: Product Introduction

Embedded finned tubes combine a robust ASTM A106 GR.B carbon steel base tube with high-conductivity copper fins through

 a pressure-embedding process. The fins are mechanically bonded into helical grooves on the base tube, ensuring zero thermal

 resistance and maximum durability under thermal cycling. Ideal for aggressive environments, this design enhances heat transfer

 efficiency by 5–8x compared to bare tubes while resisting corrosion and vibration fatigue.

Elemental Precision: Chemical Composition

Base Tube (ASTM A106 GR.B) & Fin (Copper C12200)

Dimensional Excellence: Tolerance Ranges

Customizable sizes with strict quality control (ISO 9001 certified)

Industrial Mastery: Application Areas

• Power & Energy: Boiler economizers, HRSG (Heat Recovery Steam Generators), and condensers.

• Petrochemical: Gas coolers, reformers, and sulfur recovery units (operating temp: -50°C to 350°C).

• HVAC & Refrigeration: High-efficiency evaporators and chillers for low-temperature systems.

• Marine & Offshore: Seawater-resistant heat exchangers on vessels and platforms.

• Waste Heat Recovery: Flue gas systems with corrosive exhaust (SO₂, H₂S resistance).

A106 GR.B + CU Synergy: Key Advantages

1. Thermal Superpower:

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   • CU fins offer 401 W/m·K conductivity vs. A106’s 43 W/m·K, accelerating heat exchange.

• • Embedded bond withstands 50+ thermal shock cycles (tested per ASME Sec. VIII).

1. Corrosion Resistance:

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   • CU fins self-generate protective oxide layer; A106 base resists scaling up to 400°C.

1. Mechanical Fortitude:

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   • Base tube tensile strength: ≥415 MPa; Fin pull-off strength: >40 MPa (per ASTM E8/E3).

1. 25+ Years of Expertise:

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• 10,000+ tubes supplied globally for Siemens, GE, and Shell projects.

• Custom engineering for non-standard pressures (≤150 bar) and diameters (15–120 mm).