YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Supply Ability | According to Clients' requirements |
| Delivery Time | 35-60 Days (Depend on Customer's Requirements) |
| Packaging Details | Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps |
| Product Name | High Frequency Welded Solid Finned Tube |
| Bare Tube Specification&Material | ASTM A312 TP304H |
| Bare Tube OD | 16~219mm |
| Fin material | SS304 |
| Fin Height | 5~30mm |
| Fin Thickness | 0.8~3mm |
| Fin Pitch | 3~25 |
| Application | Heat Recovery Steam Generators (HRSGs) in power plants; Air Heaters and Economizers in boiler systems; Superheaters and Reheaters... |
| Brand Name | Yuhong |
| Model Number | ASTM A312 TP304H HFW Solid Finned Tube |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | TT, LC | Supply Ability | According to Clients' requirements |
| Delivery Time | 35-60 Days (Depend on Customer's Requirements) | Packaging Details | Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps |
| Product Name | High Frequency Welded Solid Finned Tube | Bare Tube Specification&Material | ASTM A312 TP304H |
| Bare Tube OD | 16~219mm | Fin material | SS304 |
| Fin Height | 5~30mm | Fin Thickness | 0.8~3mm |
| Fin Pitch | 3~25 | Application | Heat Recovery Steam Generators (HRSGs) in power plants; Air Heaters and Economizers in boiler systems; Superheaters and Reheaters... |
| Brand Name | Yuhong | Model Number | ASTM A312 TP304H HFW Solid Finned Tube |
| Certification | ABS, BV, DNV, CCS, LR | Place of Origin | China |
| High Light | ASTM A312 TP304H finned tube ，SS304 finned tube for air heaters ，solid fin tube for economizers | ||
ASTM A312 TP304H Solid Finned Tube with SS304 Fins For Air Heaters and Economizers
An ASTM A312 TP304H HFW Solid Finned Tube with SS304 Fins is a high-frequency welded stainless steel tube, made from a high-temperature grade of 304 stainless, with individual strips of standard 304 stainless steel welded to its outside to form fins. It is an engineered component optimized for durable, efficient heat transfer in demanding industrial applications.
1. Base Tube: ASTM A312 TP304H seamless pipe
(1). Chemical Composition (Weight %)
| Element | Minimum (%) | Maximum (%) | Notes |
| Carbon (C) | 0.04 | 0.10 | Higher C for creep strength |
| Manganese (Mn) | – | 2.00 | |
| Phosphorus (P) | – | 0.045 | |
| Sulfur (S) | – | 0.030 | |
| Silicon (Si) | – | 0.75 | |
| Chromium (Cr) | 18.00 | 20.00 | |
| Nickel (Ni) | 8.00 | 11.00 | |
| Nitrogen (N) | – | 0.10 |
Key Points:
Carbon range 0.04–0.10% is the main difference from standard TP304 (C max 0.08%).
The "H" grade requires a minimum Carbon of 0.04% and often restricts the C range more tightly to ensure high-temperature performance.
Chromium and Nickel provide oxidation resistance and austenitic structure stability.
(2). Mechanical Properties (Room Temperature)
| Property | Requirement | Test Standard |
| Tensile Strength (min) | 515 MPa (75 ksi) | ASTM A370 |
| Yield Strength (0.2% offset, min) | 205 MPa (30 ksi) | ASTM A370 |
| Elongation (min) | 35% (in 2 in./50 mm) | ASTM A370 |
Note: Properties are for the tube material in the final heat-treated condition.
2. Fins: SS304 HFW Solid fins
3. Key Characteristics & Typical Applications of ASTM A312 TP304H HFW Solid Finned Tube with SS304 Fins
Primary Application Areas
1. Power Generation
| Application | Function | Why TP304H HFW Finned Tube is Used |
| Heat Recovery Steam Generators (HRSGs) | Recovers waste heat from gas turbine exhaust to produce steam | - High-temperature resistance (creep strength) - Corrosion resistance from exhaust gases - Fins maximize heat recovery efficiency |
| Superheaters & Reheaters | Increases steam temperature above saturation point for turbine efficiency | - Designed for 540°C+ service - High-pressure capability - Oxidation resistance in steam |
| Economizers | Preheats boiler feedwater using flue gas | - Resists acid dew point corrosion - Efficient gas-side heat transfer |
| Air Preheaters | Preheats combustion air using flue gas | - Large temperature differential handling - Finned surface optimizes gas-side heat transfer |
2. Petrochemical & Refining
| Application | Function | Why TP304H HFW Finned Tube is Used |
| Process Gas Heaters | Heats process streams (hydrocarbons) | - High-temperature strength - Sulfur resistance in some streams |
| Waste Heat Boilers | Recovers heat from process streams | - Handles thermal cycling - Corrosion resistance to process gases |
| Reformer & Cracker Units | High-temperature process heat exchange | - Creep resistance at 600-800°C range - Stable metallurgy |
3. Industrial Boilers & Furnaces
| Application | Function | Why TP304H HFW Finned Tube is Used |
| Package Boilers | Steam generation for process/plant | - Compact finned design saves space - Cost-effective HFW construction |
| Thermal Fluid Heaters | Heat transfer fluid heating | - Efficient heat transfer - High-temperature capability |
| Combustion Air Preheat | Energy recovery from flue gases | - Temperature resistance - Fins enhance gas-side coefficient |
4. Waste-to-Energy & Incineration
| Application | Function | Why TP304H HFW Finned Tube is Used |
| Boiler Sections | Steam generation from waste heat | - Resists corrosive flue gases (HCl, SOx) - Handles particulate erosion |
| Emission Control Systems | Gas cooling before treatment | - Temperature reduction capability - Corrosion resistance |
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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