ASME SA106 Gr.B Embedded G Fin Tube is a high-efficiency heat transfer solution for moderate-temperature non-corrosive services. It combines a seamless carbon steel base tube (ASME SA106 Gr.B) with spiral G-type aluminum fins mechanically embedded into precision-grooved surfaces. This interlocking design achieves 100% metallurgical contact, eliminating thermal resistance while providing 25% higher heat transfer efficiency than L-fin tubes in economizers, air preheaters, and thermal oil systems up to 400°C (752°F).

2. Chemical & Mechanical Properties

Dimensional Specifications:

Bare Tube Diameter:16-63mm
Fin Height::<17mm	Fin Thickness: ~0.4mm	Fin Pitch: 2.1-5mm	Tube Ends: Plain Ends / Beveled Ends
No Fin Area (Both Ends): As Customer’s Request and Drawing

Chemical Composition (%)

Element	C	Mn	P	S	Si	Cu	Cr	Mo	Ni	V
Range	≤0.30	0.29–1.06	≤0.025	≤0.025	≥0.10	≤0.40	≤0.40	≤0.15	≤0.40	≤0.08

Mechanical Properties (Solution Annealed)

Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness(HB)
≥415	≥240	≥30	≤ 197

3. Key Applications & Competitive Advantages

· Power Plant Economizers: Flue gas heat recovery in coal/gas boilers.

· HVAC Systems: Industrial air heating coils.

· Thermal Oil Circuits: Heat exchangers for hydraulic systems.

· Biomass Energy: Low-pressure steam generators.

· Food Processing: Conveyor belt dryers.

4. Why Choose ASME SA106 Gr.B Embedded G Fin Tube :

A:Company Competitiveness:

Yuhong Holding Group has more than 35 years experience for steel pipe and tube , fin tube , main application for Petrochemical , Oil refinary, Furnace, heating, boiler, heat exchanger, air cooler,.., till now YUHONG brand products already exported more than 85 countries, which like UK, ITALY, SPAIN , USA, MEXICO , COLOMBIA , BRAZIL, SAUDI ARANBIA , OMAN, QATAR, U.A.E, KOREA, ...., YUHONG brand already won good reputation in the market.

B:Product Competitiveness:
· 30% Cost Saving: Most economical vs. stainless/bimetallic tubes.
· Zero Fin Loosening: Embedded design withstands vibration (TEMA Class R).
· Easy Maintenance: Smooth fins reduce fouling by 40% (ASHRAE Data).
· Rapid Delivery: 150+ standard sizes (OD 19–102mm) in stock.

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