ASME SA335 P9 Studded Fin Tube – 13Cr (SS 410) High-Performance Studded Tube
Professional Manufacturer & Supplier in China
We are a leading manufacturer of ASME SA335 P9 Studded Fin Tubes (13Cr / SS 410), specializing in custom-engineered studded tubes for high-temperature industrial applications. Our tubes are designed for heat exchangers, boilers, superheaters, and process piping in power generation, petrochemical, chemical, and marine industries.
What is a Studded Fin Tube?
A studded fin tube, also called a stud fin tube, is a high-performance tube featuring mechanically and metallurgically welded studs (round pins) on its surface to enhance heat transfer.
Manufacturing Highlights:
- Electrical Resistance Welding (ERW): Each stud is automatically welded to the base tube, ensuring high-strength forge welds.
- Material Flexibility: Tube and stud materials can be any combination of carbon steel, alloy steel, stainless steel, or high-nickel alloys.
- Stress Relief: Alloy steel tubes are stress-relieved post-studding according to ASME SA335 P9 class and grade standards, ensuring dimensional stability and fatigue resistance.
- Enhanced Performance: The studs increase surface area, optimize fluid turbulence, and significantly improve thermal performance.
Key Benefits:
- Improved heat transfer efficiency in heat exchangers and boilers
- Enhanced mechanical robustness and durability
- Fully customizable stud layout for optimal thermal and mechanical performance
- Compliant with ASME SA335 P9 high-temperature service requirements
Technical Specifications
| Sr. No | Parameter | Range / Description |
|---|---|---|
| 1 | Base Tube Material | Stainless Steel, Carbon Steel, Alloy Steel, Titanium, Copper, Duplex Stainless Steel, Inconel, etc. (all within theoretical limits) |
| 2 | Base Tube OD | 60 mm – 200 mm |
| 3 | Base Tube Thickness | 3 mm – 12.7 mm |
| 4 | Base Tube Length | 2,000 mm – 15,000 mm |
| 5 | Stud Material | Carbon Steel / Stainless Steel / Alloy Steel |
| 6 | Stud Thickness | 6 mm – 16 mm |
| 7 | Stud Density | 15.88 mm pitch or 63 studs per plate per meter (customizable) |
| 8 | Stud Height | 12.7 mm – 63.5 mm |
| 9 | Bare Ends | Per client specifications |
Engineering Notes:
- Studs are welded to ensure uniform thermal conduction and structural integrity.
- Tube and stud selection are optimized for creep resistance, high-temperature strength, and long service life.
- Optional custom coatings or heat treatments can be applied for aggressive environments.
Key Features & Advantages
- Superior Thermal Performance – Increased surface area improves convection efficiency in heat exchangers.
- High Mechanical Strength – Forge-welded studs withstand vibration, pressure, and mechanical fatigue.
- Customizable Design – Pitch, stud height, density, and material combinations tailored for client-specific engineering requirements.
- High Corrosion Resistance – 13Cr (SS 410) provides excellent resistance to oxidizing environments and moderate corrosive media.
- Standard Compliance – Fully manufactured per ASME SA335 P9, ensuring high-temperature and high-pressure reliability.
- Quality Assurance – Comprehensive MTC / EN10204 3.1 or 3.2 certificates and third-party inspection (SGS, BV, TUV, ABS, DNV) available.
Applications
- Industrial Heat Exchangers – Steam, gas, or chemical systems
- Boilers and Superheaters – High-temperature, high-pressure applications
- Process Piping Systems – Petrochemical, chemical, and refinery pipelines
- Marine & Offshore Equipment – Corrosion-resistant heat transfer surfaces
- Desalination Plants – Studded tubes for seawater systems
FAQ – Engineering & Procurement Focus
Q1: What is the difference between a studded fin tube and a standard fin tube?
A: Studded fin tubes feature mechanically welded studs, increasing surface area and turbulence, improving heat transfer more efficiently than traditional helical or plate fins.
Q2: Can I customize the studs?
A: Yes. Stud height, thickness, density, and material can all be tailored for optimal heat transfer and mechanical strength.
Q3: Are these tubes certified?
A: Yes. We provide full material traceability (MTC / EN10204 3.1/3.2) and third-party inspection options.
Q4: What materials can be combined for studs and tubes?
A: Any combination of carbon steel, alloy steel, stainless steel, titanium, copper, or high-nickel alloys can be used, depending on application requirements.
Request a custom quote today for ASME SA335 P9 Studded Fin Tubes and ensure maximum heat transfer efficiency, durability, and compliance for your industrial, marine, or power plant projects.
ASME SA335 P9 Studded Fin Tube 13Cr Studded Tube
