Yuhong Group Co.,Ltd
| Delivery Time | 50-120 days |
| Payment Terms | L/C,T/T |
| Material | ASTM A335 P5 |
| Application | High-Temperature Heat Recovery |
| Supply Ability | 5000 meters/day |
| Product | Studded Fin Tubes |
| Package | Iron frame wooden case |
| Packaging Details | Iron frame wooden case |
| Model Number | N/A |
| Brand Name | YUHONG |
| Certification | ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 |
| Place of Origin | China |
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Product Specification
| Delivery Time | 50-120 days | Payment Terms | L/C,T/T |
| Material | ASTM A335 P5 | Application | High-Temperature Heat Recovery |
| Supply Ability | 5000 meters/day | Product | Studded Fin Tubes |
| Package | Iron frame wooden case | Packaging Details | Iron frame wooden case |
| Model Number | N/A | Brand Name | YUHONG |
| Certification | ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 | Place of Origin | China |
| High Light | ASTM A335 P5 studded fin tubes ，high-temperature heat recovery fin tubes ，studded fin tubes with warranty | ||
ASTM A335 P5 Studded Fin Tubes are engineered for demanding heat transfer applications involving elevated temperatures, aggressive flue gases, and severe thermal cycling conditions. Manufactured from ASTM A335 Grade P5 seamless ferritic alloy steel pipe, these tubes feature solid metal studs resistance-welded onto the external tube surface to increase heat transfer efficiency while maintaining excellent mechanical integrity.
The chromium-molybdenum alloy composition of P5 steel provides superior oxidation resistance, creep strength, and high-temperature performance compared to conventional carbon steel tubes. Studded fin tubes are widely utilized in refinery heaters, petrochemical furnaces, waste heat recovery boilers, thermal oil heaters, sulfur recovery units, and power generation facilities.
The studded design creates additional heat transfer surface area while allowing easier cleaning and better fouling resistance than conventional finned tubes, making them particularly suitable for dirty gas streams and high-temperature environments.
Studded fin tubes are produced by automatically resistance welding carbon or alloy steel studs onto the outside surface of the ASTM A335 P5 base tube. The welding process creates a strong metallurgical bond that ensures efficient heat transfer and long-term reliability under cyclic operating conditions.
After welding, the tubes undergo dimensional verification, weld integrity inspection, and material testing to ensure compliance with project specifications and international quality standards.
The following dimensions represent common manufacturing capabilities. Custom sizes are available upon request.
| Parameter | Typical Range |
|---|---|
| Base Tube OD | 25.4 mm – 219.1 mm (1" – 8") |
| Tube Wall Thickness | 3.2 mm – 16.0 mm |
| Tube Length | Up to 18,000 mm |
| Stud Diameter | 6 mm – 20 mm |
| Stud Height | 10 mm – 35 mm |
| Stud Pitch | 10 mm – 40 mm |
| Stud Density | Customized per thermal design |
| Surface Condition | As Welded, Shot Blasted, Coated |
| Element | Composition (%) |
|---|---|
| Carbon (C) | Max 0.15 |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | Max 0.025 |
| Sulfur (S) | Max 0.025 |
| Silicon (Si) | Max 0.50 |
| Chromium (Cr) | 4.00 – 6.00 |
| Molybdenum (Mo) | 0.45 – 0.65 |
| Property | Minimum Value |
|---|---|
| Tensile Strength | 415 MPa (60 ksi) |
| Yield Strength | 205 MPa (30 ksi) |
| Elongation | 30% |
| Hardness | According to ASTM specification |
| Heat Treatment | Full Annealed or Isothermal Annealed |
To ensure product reliability and compliance, ASTM A335 P5 studded fin tubes may undergo the following inspections:
The 5% chromium content significantly improves oxidation and scaling resistance in elevated temperature service.
Studs increase the effective external surface area and promote turbulence in gas flow, improving overall thermal efficiency.
P5 alloy steel provides excellent creep resistance and structural stability during long-term exposure to high temperatures.
The open stud configuration reduces dust accumulation and simplifies cleaning operations compared with closely spaced finned tubes.
Improved resistance to corrosion, oxidation, and thermal fatigue contributes to longer service intervals and reduced lifecycle costs.
Manufacturing and inspection can be performed in accordance with:
For high-temperature heat recovery systems operating under severe process conditions, ASTM A335 P5 Studded Fin Tubes provide an optimal combination of thermal efficiency, oxidation resistance, mechanical strength, and operational reliability. Their proven performance in refinery heaters, petrochemical furnaces, and waste heat recovery equipment makes them a preferred solution for demanding industrial heat transfer applications worldwide.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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