ASTM A249 TP304 Welded Austenitic Steel Extruded Finned Tube For Heat Exchangers

1. What is ASTM A249 TP304 Extruded Fin Tube?

ASTM A249 TP304 Extruded Fin Tube is a high-integrity heat transfer solution for corrosive and high-purity applications. It features a seamless austenitic stainless steel base tube (ASTM A249 TP304) with integrally extruded aluminum fins metallurgically bonded through high-pressure thermal processing. This monolithic design eliminates interfacial resistance, achieving 98% thermal contact efficiency while providing superior chloride corrosion resistance and FDA-compliant surface finish for pharmaceutical, food processing, and chemical systems up to 260°C (500°F).

2. Chemical & Mechanical Properties

Dimensional Specifications:

Chemical Composition (%)

Mechanical Properties

3. Key Applications & Competitive Advantages

· Pharmaceutical: Clean steam heat exchangers (FDA 21 CFR compliance).

· Food & Beverage: Pasteurizer coils for dairy/juice processing.

· Chemical Processing: HCl coolers with chloride resistance.

· HVAC: Hospital ventilation heating coils.

· Semiconductor: Ultra-pure water heat exchangers.

4. Why Choose ASTM A249 TP304 Extrurded 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:

· Zero Contamination Risk: Electropolished surface (Ra ≤0.4μm) per ASME BPE.
· 30+ Year Lifespan: Resists pitting in 100ppm chlorides (ASTM G48 Method A).
· Energy Saving: 40% higher HTC vs. welded fins (HTRI Field Data).
· Rapid Stock Delivery: 100+ FDA-compliant sizes (OD 19–63.5mm) in warehouse.