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.

Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always.   The factories already got certificates like : ABS, LR, DNV-GL, BV, KR, CCS, ASME, ISO 9001, ISO14001, ISO18001, ect.

Our factories main products as below : 
Factory 1th: Stainless steel seamless tube, Duplex steel seamless tube, Super duplex steel seamless tube, Nickel alloy steel seamless tube;

Factory 2th: Carbon steel seamless tube, Alloy steel seamless tube; Enhanced Heat Tranfer Tube, low fin tube ,U bending workshop;
Factory 3th: High frequency welding fin tube(HFW fin tube, Solid Fin tube, Studded Tube, Serrated Fin tube, Longitudinal welding fin tube), Wound fin tube(L type fin tube, LL type fin tube,  KL type fin tube), Embedded G type fin tube , Extruded fin tube,  low fin tube, U bend & 180deg. Return;

Yuhong Holding Group also has gained rich experience for project package( products contain:Pipes, Fittings, Flanges, heat exchanger, furnace, fired heater, air cooler, boiler) , YUHONG brand has marked its global presence in more than 85 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers as stockists around the world.