ASTM A312 TP304 Studded Tube For Petrochemical And Power Generation

ASTM A312 TP304 Studded Tube For Petrochemical And Power Generation

ASTM A312 TP304 Studded Tube is a specialized type of tube made from TP304 stainless steel with studded features designed to enhance heat transfer in heat exchangers, boilers, and various other thermal management applications. The tube is manufactured in compliance with the ASTM A312 standard, which governs the manufacturing of seamless, welded, and annealed austenitic stainless steel pipes, often used in high-temperature, high-pressure environments. The studs on the tube are added to increase the surface area for better heat transfer, making these tubes ideal for applications where heat exchange efficiency is paramount.

Chemical composition:

• Chromium (Cr): 18-20%

• Nickel (Ni): 8-10.5%

• Carbon (C): ≤0.08%

• Manganese (Mn): ≤2%

• Silicon (Si): ≤1%

• Phosphorus (S): ≤0.045%

• Sulfur (S): ≤0.03%

Key Properties​:

• Corrosion Resistance: Excellent resistance to oxidizing environments (e.g., nitric acid, organic acids) and moderate resistance to reducing conditions.

• Temperature Tolerance: Suitable for continuous service up to 870°C (1600°F) and intermittent service up to 925°C (1700°F).

• Mechanical Strength: Tensile strength ≥515 MPa, Yield strength ≥205 MPa (per ASTM A312).

• Thermal Expansion: High coefficient (~17 μm/m·°C), necessitating design considerations in high-temperature applications.

• Surface Finish: Often pickled/passivated to enhance corrosion resistance.

Physical Properties:

• Density: ~ 8.00 g/cm³ (for TP304)
• Melting Point: Approx. 1400°C (2552°F)
• Thermal Conductivity: ~ 16.2 W/m·K (for TP304)
• Specific Heat: ~ 500 J/kg·K
• Modulus of Elasticity: ~ 190 GPa
• Thermal Expansion: ~ 17.2 × 10^-6 /°C (for TP304)

Application:

• Heat Exchangers/Boilers: Studs increase surface area for efficient heat transfer in HRSGs, waste heat recovery units, and economizers.
• Refractory Anchoring: Studs secure insulation linings in high-temperature environments (e.g., furnaces, incinerators).
• Petrochemical/Chemical Plants: Used in reformer furnaces and catalyst tubes where corrosion resistance and thermal stability are critical.
• Power Generation: Fossil fuel plants, nuclear systems, and marine exhausts leveraging TP304’s durability.
• Cryogenic Applications: Suitable for low-temperature services due to austenitic toughness.

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.