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） |
| Fin Type | HWF/ High Frequency Finned Tube/Solid Finned Tube |
| Base Tube Specification | ASTM A355 |
| Base Tube Material | P22（1.7380） |
| Bare Tube Diameter | 16-219mm |
| Length | 10315mm |
| FPM | 175 |
| Fin Pitch | 3-25mm |
| Application | Power Plant, Boiler, Refrigeration, Air Conditioning systems And Inudustrial Furnaces |
| 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） |
| Fin Type | HWF/ High Frequency Finned Tube/Solid Finned Tube | Base Tube Specification | ASTM A355 |
| Base Tube Material | P22（1.7380） | Bare Tube Diameter | 16-219mm |
| Length | 10315mm | FPM | 175 |
| Fin Pitch | 3-25mm | Application | Power Plant, Boiler, Refrigeration, Air Conditioning systems And Inudustrial Furnaces |
| Brand Name | YUHONG | Certification | ABS, BV, ISO, ASTM, SGS |
| Place of Origin | China | ||
| High Light | ASTM A335 P22 alloy steel finned tube ，HFW solid fin tube for heat exchanger ，alloy steel heat exchanger finned tube | ||
1.ASTM A335 P22 Alloy Steel HFW Solid Finned Tube
ASTM A335 P22 is a chromium-molybdenum alloy steel known for its excellent high-temperature strength and oxidation resistance. With a nominal composition of 2.25% Chromium and 1% Molybdenum, it offers enhanced creep resistance and structural stability at elevated temperatures, making it a preferred choice for high-temperature, high-pressure service.
The ASME SA335 P22 HFW (High-Frequency Welded) Solid Finned Tube is an advanced thermal engineering component where solid steel fins are continuously welded onto the P22 base tube. This construction creates a durable, integral heat transfer surface specifically designed for demanding high-temperature applications in aggressive industrial environments.
2.Chemical Composition
P22 Chemical Composition (%)
| Element | C | Mn | Si | P | S | Cr | Mo |
| Range | 0.05-0.15 | 0.30-0.60 | ≤ 0.50 | ≤ 0.025 | ≤ 0.025 | 1.90-2.60 | 0.87-1.13 |
3.Mechanical Properties
P22 Mechanical Properties
| Tensile Strength | Yield Strength | Elongation | Hardness |
| ≥ 415 MPa (60 ksi) | ≥ 205 MPa (30 ksi) | ≥ 30% | ≤ 163 HB |
4.Key Features & Advantages
1.Superior High-Temperature Performance: Maintains excellent mechanical strength and creep resistance at temperatures up to 580°C (1075°F)
2.Enhanced Heat Transfer Efficiency: Solid fin design provides maximum extended surface area for optimal thermal performance
3.Robust Welded Construction: HFW process ensures strong metallurgical bond between fins and base tube with minimal thermal affected zone
4.Excellent Oxidation Resistance: Chromium content provides good resistance to scaling in oxidizing atmospheres
5.Proven Reliability: Established material for ASME-code high-temperature pressure components with extensive service history
5.Comparison with Related Grades
P22 vs. P5:
P5 (5% Cr) offers better oxidation resistance for more severe environments, while P22 provides a cost-effective solution for many high-temperature applications with adequate performance.
P22 vs. P11:
P22 contains higher chromium (2.25% vs 1.25%), providing superior oxidation resistance and higher temperature capability compared to P11.
HFW Solid Fin vs. Studded Fin:
Solid fins offer continuous heat transfer surface with better aerodynamics, while studded fins provide better mechanical protection in highly abrasive environments.
6.Applications
1.Petrochemical Heaters: Convection section tubes in refinery process heaters and cracking furnaces
2.Power Generation Boilers: Superheater and reheater elements in thermal power plants
3.Heat Recovery Steam Generators: High-temperature sections in combined cycle power plants
4.Chemical Process Heaters: High-temperature heat exchangers and process heaters
5.Industrial Furnaces: Heat transfer tubes in direct-fired process furnaces
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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