ASME SA213 T9 Alloy Steel Studded Tubes For Boilers , Furnaces
ASME SA213 T9 studded tubes are a type of high-performance heat transfer tube widely used in industrial applications that require excellent thermal efficiency and resistance to high temperatures and pressures. These tubes are typically made from T9 alloy steel and are enhanced with studs (protrusions) to increase heat transfer efficiency in applications such as boilers, furnaces, and heat exchangers.
Studded tubes are heat transfer tubes that are fitted with small metal studs or pins welded circumferentially or helically along the tube's surface. These studs increase the surface area of the tube, improving heat transfer efficiency by promoting better heat exchange between the tube and the surrounding medium.
| Type | Description | Base tube | Fin specification (mm) |
| Type | O.D. (mm) | Fin pitch | Fin height | Fin thick |
| Welding | HFW Fin Tube | 16-219 | 3-25 | 5-30 | 0.8-3 |
| H/HH Type Fin Tube | 25-63 | 3-258-30 | <200 | 1.5-3.5 |
| HFW Studded Fin Tube | 25-219 | 8-30 | 5-35 | φ5-20 |
Key features of studded tubes:
· Stud Material: Typically the same as the base tube (T9 alloy steel) or a compatible material.
· Stud Arrangement: Studs can be positioned in spiral or straight patterns.
· Stud Welding: High-precision welding ensures strong attachment and minimal thermal resistance.
Benefits of studded tubes:
· Enhanced heat transfer efficiency.
· Improved performance in high-temperature environments.
· Reduced fouling or scaling due to the stud design.
· Reduced overall equipment size and weight.
Applications of ASME SA213 T9 Studded Tubes:
1. Petrochemical Industry:
· Fired heaters.
· Process heat exchangers.
· Reformers.
2. Power Generation:
· Boilers and superheaters.
· Heat recovery steam generators (HRSG).
3. Fertilizer Plants:
· Ammonia production.
· Urea production.
4. Refineries:
· Heat exchangers in crude distillation units.
· Catalytic cracking units.
5. Steel Industry:
· Reheating furnaces.
· Gas coolers.
Advantages of ASME SA213 T9 Studded Tubes:
· High Thermal Efficiency: Increased heat transfer surface area ensures better thermal performance compared to plain tubes.
· Durability: T9 alloy steel provides excellent resistance to high-temperature oxidation, creep, and corrosion.
· Mechanical Strength: Withstands high pressures and thermal cycling without deformation or failure.
· Cost-Effective: Reduces the overall size of heat exchangers or boilers while maintaining performance.
· Customizability: Stud patterns, lengths, and diameters can be tailored to specific design requirements.
