DELLOK Carbon Steel Resistance Welding Studded Tube 25-273mm OD with 2-3x Heat Transfer Efficiency
DELLOK (YONGHUI RADIATING PIPE MANUFACTURING CO.,LTD.) has been manufacturing high-quality heat transfer solutions since 2002. With extensive production capabilities including 47 fin tube production lines and an annual capacity of 12 million meters, we deliver reliable studded tubes for demanding industrial applications.
Studded fin tubes are manufactured using electrical resistance welding to attach specially formed studs (round pins) in rows around the tube. These tubes provide exceptional heat transfer efficiency, equivalent to 2-3 times that of bare pipes, making them ideal for high-temperature applications in corrosive environments.
Steel studs are automatically resistance welded to the tube, producing high-quality forge welds. Our PLC-controlled welding process ensures consistent quality with precise control over stud placement, pitch, and welding parameters.
- Excellent heat transfer efficiency - 2-3 times bare pipe performance
- Superior mechanical resistance for high-pressure cleaning
- Enhanced corrosion protection with complete base tube coverage
- High rigidity for extreme temperature and pressure conditions
- Reduced downtime with aggressive cleaning capability
- Manufacturing Process: Electric Resistance Welding
- Fin to Tube Bond: Excellent
- Heat Transfer Efficiency: Excellent
- Mechanical Resistance: Excellent
- Corrosion Protection: Complete base tube coverage
Studded tubes are ideal for heat transfer applications in processing industries including furnaces, gas turbines, fired heaters, and boilers where surfaces are exposed to corrosive environments and dirty gas streams requiring frequent cleaning.
| Parameter | Metric | Imperial |
|---|---|---|
| Tube OD | 25~273 mm | 1"~10" NPS |
| Tube Wall Thickness | 3.5~28.6 mm | 0.14"~1.1" |
| Tube Length | ≤25,000 mm | ≤82 ft |
| Stud Thickness | 6~25.4 mm | 0.23"~1" |
| Stud Height | 10~35 mm | 0.4"~1.38" |
| Stud Pitch | 8~30 mm | 0.3"~1.2" |
| Stud Type | Cylindrical, Elliptical, Lens type | |
| Stud Angle | Vertical or Angular | |
Stud Materials: Carbon Steel (Q235B), Stainless Steel (AISI 304, 316, 409, 410, 321, 347), Alloy Steel
Tube Materials: Carbon Steel (A106 Gr.B), Stainless Steel (TP304, 316, 321, 347), Alloy Steel (T/P5,9,11,22,91)
Our comprehensive quality control system includes raw material inspection, production monitoring, water pressure testing, and strength verification. All materials are accompanied by mill test certifications and inspection reports.
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