ASTM A312 TP304 Stainless Steel Studded Tube for Furnances Evaporators

ASTM A312 TP304 Studded Tube Application

1. Chemical & Petrochemical Plants

• Used in heat exchangers, condensers, and reactors handling corrosive chemicals (acids, alkalis, hydrocarbons).
• Resists chloride-induced stress corrosion cracking (SCC) in harsh environments.

2. Oil & Gas Industry

• Ideal for heat recovery systems, boilers, and furnaces in refineries and offshore platforms.
• Withstands high temperatures and sour gas (H₂S) environments.

3. Power Generation

• Deployed in boilers, superheaters, and waste heat recovery units in thermal/nuclear power plants.
• Handles steam and high-pressure water efficiently.

4. Marine & Desalination

• Used in seawater desalination evaporators and shipboard heat exchangers due to excellent pitting resistance.

5. Food & Pharmaceutical Processing

• Suitable for hygienic heat exchangers due to its non-reactive, easy-to-clean surface.

6. Pulp & Paper Industry

• Resists corrosive byproducts (e.g., sulfides) in digesters and black liquor recovery boilers.

ASTM A312 TP304 Studded Fin Tube Key Features

• Material: A312 TP304 (18% Cr, 8% Ni) offers excellent oxidation resistance up to 870°C (1600°F).
• Studded Fins: Enhances heat transfer efficiency by increasing surface area; studs improve turbulence.
• Corrosion Resistance: Performs well in acidic, alkaline, and chloride-rich environments (better than carbon steel).
• Weldability & Fabrication: Easily welded and formed into custom configurations.

ASTM A312 TP316L Studded Fin Tube FAQ

1. What are the advantages of studded fins over plain or spiral fins?

• Higher heat transfer efficiency due to increased turbulence.
• Better mechanical strength (studs resist erosion & vibration).
• Easier cleaning compared to tightly wound spiral fins.
• Customizable stud pitch & height for optimized performance.

2. How does TP304 compare to TP316 for studded fin tubes?

• TP304: Lower cost, good general corrosion resistance.
• TP316: Contains 2-3% Molybdenum for better chloride & pitting resistance (e.g., seawater, acidic environments).
• Choice depends on environment—TP316 is preferred for harsher conditions.

3. Can TP304 studded tubes handle high-pressure applications?

• Yes, A312 TP304 tubes are rated for high-pressure use, but the operating limits depend on wall thickness, temperature, and stud welding integrity.

4. What are the limitations of TP304 studded fin tubes?

• Not ideal for prolonged high temps (>500°C/932°F) due to carbide precipitation (sensitization).
• Weaker chloride resistance than TP316—may suffer pitting in saltwater or acidic chloride environments.
• Higher cost than carbon steel, but longer lifespan in corrosive settings.

5. How are studded fin tubes manufactured?

• Studs are resistance-welded or arc-welded onto the base tube in a staggered/helical pattern.
• Materials: Base tube (A312 TP304) + studs (usually same or higher-grade SS).
• Testing: Hydrostatic, ultrasonic (UT), or eddy current (ET) testing for quality assurance.

6. How do I select the right studded fin tube for my application?

• Fluid type (corrosive, abrasive, high-temp).
• Pressure & temperature requirements.
• Stud pitch/density (affects heat transfer & pressure drop).
• Material upgrade options (TP316L, 321, or duplex SS for harsher conditions).

7. Where can I buy A312 TP304 studded fin tubes?

• Specialized manufacturers of heat exchanger tubing (e.g., FinTube, Salem Tube, Wieland Thermal Solutions).
• Custom orders are available for specific stud patterns, lengths, and testing requirements.

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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.