Yuhong Group Co.,Ltd
| Delivery Time | 50-120 days |
| Payment Terms | L/C,T/T |
| Material | ASTM A335 P22 |
| Application | High-Temperature Heat Transfer Applications |
| 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 |
| Place of Origin | China |
| Certification | ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 |
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Product Specification
| Delivery Time | 50-120 days | Payment Terms | L/C,T/T |
| Material | ASTM A335 P22 | Application | High-Temperature Heat Transfer Applications |
| 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 |
| Place of Origin | China | Certification | ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 |
| High Light | ASTM A335 P22 studded fin tubes ，high-temperature heat transfer fin tubes ，studded fin tubes manufacturer | ||
ASTM A335 P22 Studded Fin Tubes are premium alloy steel heat transfer components specifically engineered for high-temperature and high-pressure service. Manufactured from ASTM A335 Grade P22 seamless ferritic alloy steel, these tubes are fitted with solid studs that are resistance welded uniformly around the tube surface, significantly increasing the effective heat transfer area while maintaining excellent mechanical integrity.
The chromium-molybdenum composition of P22 steel provides superior oxidation resistance, creep strength, and elevated-temperature performance, making these studded tubes an ideal choice for severe operating environments where conventional finned tubes may suffer erosion or fouling.
Studded fin tubes are widely installed in boilers, fired heaters, waste heat recovery units, petrochemical furnaces, fluidized bed boilers, incinerators, and refinery process heaters where durability and long service life are essential.
ASTM A335 P22 Studded Fin Tubes are extensively used in:
Studded fin tubes are produced through an automated resistance welding process where individual steel studs are permanently welded onto the outside surface of the seamless P22 tube.
Manufacturing stages include:
The finished product offers excellent bonding strength and uniform stud distribution for consistent heat transfer.
The following dimensions represent common manufacturing capabilities.
| Item | Range |
|---|---|
| Outside Diameter | 25.4 mm – 219.1 mm (1" – 8") |
| Wall Thickness | 2.5 mm – 18 mm |
| Tube Length | Up to 18,000 mm |
| Material Standard | ASTM A335 Grade P22 |
| Manufacturing | Seamless |
| Item | Typical Range |
|---|---|
| Stud Diameter | 6 mm – 15 mm |
| Stud Height | 10 mm – 35 mm |
| Stud Pitch | 8 mm – 30 mm |
| Stud Material | Carbon Steel / Alloy Steel (per service conditions) |
Custom dimensions are available according to project specifications.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.05–0.15 |
| Manganese (Mn) | 0.30–0.60 |
| Silicon (Si) | Max 0.50 |
| Phosphorus (P) | Max 0.025 |
| Sulfur (S) | Max 0.025 |
| Chromium (Cr) | 1.90–2.60 |
| Molybdenum (Mo) | 0.87–1.13 |
| Property | Value |
|---|---|
| Tensile Strength | ≥415 MPa |
| Yield Strength | ≥205 MPa |
| Elongation | ≥30% |
| Hardness | According to ASTM A335 requirements |
| Service Temperature | Up to approximately 600°C (application dependent) |
The chromium-molybdenum alloy provides excellent long-term creep resistance under elevated operating temperatures.
Every batch of ASTM A335 P22 Studded Fin Tubes can undergo comprehensive quality inspections to ensure compliance with customer specifications and international standards.
Typical inspection methods include:
Compared with conventional plain tubes, P22 studded fin tubes provide:
Our ASTM A335 P22 Studded Fin Tubes are manufactured under strict quality management systems to ensure consistent product performance and reliability. Production and inspection can be carried out in accordance with international standards and customer project requirements. Material traceability, welding quality control, and comprehensive testing are maintained throughout the manufacturing process to deliver products suitable for demanding industrial applications.
Products are carefully packaged to prevent mechanical damage and corrosion during transportation.
Packaging options include:
Our ASTM A335 P22 Studded Fin Tubes are engineered to deliver dependable heat transfer performance, excellent resistance to high-temperature service conditions, and extended equipment life in power generation, petrochemical, refinery, and industrial heating applications.
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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