YUHONG HOLDING GROUP CO., LTD
| Supply Ability | 5000 meters/day |
| Product | Studded Fin Tube |
| Package | Iron frame wooden case |
| Delivery Time | 50-120 days |
| Payment Terms | T/T,L/C |
| Material | ASTM A335 GR.P9 |
| Application | Ethylene Cracking Furnaces, Petrochemical Fired Heaters, Refinery Process Heaters, Convection Sections of Process Furnaces |
| 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
| Supply Ability | 5000 meters/day | Product | Studded Fin Tube |
| Package | Iron frame wooden case | Delivery Time | 50-120 days |
| Payment Terms | T/T,L/C | Material | ASTM A335 GR.P9 |
| Application | Ethylene Cracking Furnaces, Petrochemical Fired Heaters, Refinery Process Heaters, Convection Sections of Process Furnaces | 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 Gr. P9 studded fin tubes ，studded fin tubes for cracking furnaces ，high-temperature studded tubes with warranty | ||
ASTM A335 Gr. P9 Studded Fin Tubes are designed for high-temperature heat transfer applications in cracking furnaces, where excellent resistance to oxidation, creep, and thermal fatigue is essential. Manufactured from 9Cr-1Mo alloy steel seamless tubes, these studded fin tubes provide an enlarged external heat transfer surface while maintaining outstanding mechanical integrity under prolonged exposure to elevated temperatures.
The welded studs significantly improve heat absorption from high-temperature flue gases, making the tubes suitable for convection sections of ethylene cracking furnaces, petrochemical heaters, and other demanding thermal processing equipment. ASTM A335 Gr. P9 offers superior high-temperature performance compared with conventional carbon steel materials, ensuring longer service life and improved operational reliability.
ASTM A335 Gr. P9 Studded Fin Tubes are widely used in high-temperature industrial heating equipment, including:
| Parameter | Standard Range |
|---|---|
| Base Tube OD | 25.4–168.3 mm (1"–6") |
| Base Tube Wall Thickness | 2.77–12.70 mm |
| Tube Length | Up to 18,000 mm |
| Stud Diameter | 6–20 mm |
| Stud Height | 10–35 mm |
| Stud Pitch | 8–30 mm |
| Stud Material | Carbon Steel, Alloy Steel, Stainless Steel (according to application) |
| Manufacturing Standard | ASTM A335 / ASME SA335 / Customer Drawings |
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.15 Max |
| Manganese (Mn) | 0.30–0.60 |
| Phosphorus (P) | 0.025 Max |
| Sulfur (S) | 0.025 Max |
| Silicon (Si) | 0.25–1.00 |
| Chromium (Cr) | 8.00–10.00 |
| Molybdenum (Mo) | 0.90–1.10 |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 20% |
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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