YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C,T/T,AT SIGHT |
| Supply Ability | According to Clients' requirements |
| Delivery Time | 45-75 Days (Depend on Customer's Requirement） |
| Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps） |
| Bare Tube Material | P22 |
| Bare Tube Standard | ASTM A335 |
| Fin Type | HFW Serrated Fin Tube |
| Manufacturing Process | Seamless |
| Fin Thick | 0.3-3 MM |
| Application | Power Plants ,heat exchangers, air preheaters ,Chemical Plants , condensers, and reactors ,Oil Refineries |
| Brand Name | YUHONG |
| Certification | ABS, BV, ISO, ASTM, SGS |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T,AT SIGHT | Supply Ability | According to Clients' requirements |
| Delivery Time | 45-75 Days (Depend on Customer's Requirement） | Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps） |
| Bare Tube Material | P22 | Bare Tube Standard | ASTM A335 |
| Fin Type | HFW Serrated Fin Tube | Manufacturing Process | Seamless |
| Fin Thick | 0.3-3 MM | Application | Power Plants ,heat exchangers, air preheaters ,Chemical Plants , condensers, and reactors ,Oil Refineries |
| Brand Name | YUHONG | Certification | ABS, BV, ISO, ASTM, SGS |
| Place of Origin | China | ||
| High Light | ASTM A335 P22 alloy steel fin tube ，serrated fin tube for power plants ，seamless finned tube with warranty | ||
ASTM A335 P22 serrated fin tubes are manufactured from P22 chromium-molybdenum alloy steel, a material specifically designed for high-temperature and high-pressure service. With a nominal composition of 2.25% chromium and 1% molybdenum, this grade provides excellent resistance to oxidation, creep, and sulfur attack at elevated temperatures. The tube utilizes a seamless base pipe combined with helically wound, serrated (notched) fins that are securely attached through high-frequency welding or an embedded process. The serrated fin design significantly increases turbulence and disrupts boundary layers, enhancing heat transfer efficiency compared to plain fins. This construction maintains robust pressure integrity while offering superior thermal performance in demanding environments. Suitable for high-temperature heat exchangers, boilers, heaters, and other critical pressure equipment, it can be supplied in custom dimensions and fin configurations to meet specific project requirements.
Base Tube Chemical Composition (%)
| Element | C | Si (max) | Mn | P (max) | S (max) | Cr | Mo |
| Range | 0.05–0.15 | 0.50 | 0.30–0.60 | 0.025 | 0.025 | 1.90–2.60 | 0.87–1.13 |
Mechanical Properties (Base Tube)
| Tensile Strength (min) | Yield Strength (min) | Elongation (min) |
| 415 MPa | 205 MPa | 30% |
| ASTM | EN/DIN | UNS | JIS | GB | Common Name |
| A335 P22 | 10CrMo9-10 | K21590 | STPA24 | 12Cr2MoG | T22 / 2.25Cr-1Mo |
| Property | P22 (2.25Cr-1Mo) | P11 (1.25Cr-0.5Mo) | P5 (5Cr-0.5Mo) |
| Core Advantage | Best high-temp strength | Most cost-effective | Best corrosion resistance |
| Temp Limit | 565-600°C | 540-550°C | 600°C |
| Key Application | Power generation (high temp/pressure) | General industrial heat exchangers | Refineries (high sulfur) |
| Weldability | Good | Excellent | Good |
| Cost | Medium-High | Lowest | Medium-High |
● Power Generation Boilers: Superheater and reheater tubes, economizer sections, and high-pressure steam lines in coal-fired and thermal power plants.
● Petrochemical & Refinery Heaters: Process heater coils, convection and radiant sections in crude, vacuum, and reformer heaters.
● Heat Recovery Steam Generators (HRSG): Evaporator and superheater coils in gas turbine co mbined-cycle units.
● High-Temperature Heat Exchangers: Waste heat recovery units, air preheaters, and process gas coolers in chemical and metallurgical industries.
● Industrial Boilers & Steam Systems: High-pressure steam coils, boiler bank tubes, and steam distribution piping in pulp/paper, textile, and food processing plants.
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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