Yuhong Group Co.,Ltd
| Payment Terms | T/T |
| Supply Ability | 1000 tons/month |
| Delivery Time | 40-60 DAYS |
| Packaging Details | Ply-wooden Case With Iron Frame |
| Fin Tubes Type | HFW Finned Tubes |
| HFW Finned Tubes Base Tubes Base Tube Type | Stainless Steel Seamless Pipe |
| HFW Finned Tubes Standard and Material | ASTM A312 TP347H Stainless Steel Base Tubes and SS Fins |
| HFW Finned Tubes Size and Length | By Customers' Requirements |
| HFW Finned Tubes Application | Boiler economizers, air preheaters, superheaters, water walls;Direct/indirect air-cooled condensers for power plants;Waste heat recovery systems,etc. |
| HFW Finned Tubes Packing | Ply-wooden Case With Iron Frame |
| Brand Name | YUHONG |
| Model Number | HFW FIN TUBE |
| Certification | ISO 9001-2015,ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T | Supply Ability | 1000 tons/month |
| Delivery Time | 40-60 DAYS | Packaging Details | Ply-wooden Case With Iron Frame |
| Fin Tubes Type | HFW Finned Tubes | HFW Finned Tubes Base Tubes Base Tube Type | Stainless Steel Seamless Pipe |
| HFW Finned Tubes Standard and Material | ASTM A312 TP347H Stainless Steel Base Tubes and SS Fins | HFW Finned Tubes Size and Length | By Customers' Requirements |
| HFW Finned Tubes Application | Boiler economizers, air preheaters, superheaters, water walls;Direct/indirect air-cooled condensers for power plants;Waste heat recovery systems,etc. | HFW Finned Tubes Packing | Ply-wooden Case With Iron Frame |
| Brand Name | YUHONG | Model Number | HFW FIN TUBE |
| Certification | ISO 9001-2015,ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS | Place of Origin | CHINA |
| High Light | HFW finned tubes for waste heat boilers ，ASTM A312 TP347H finned tubes ，stainless steel fin tubes | ||
HFW Finned Tubes ASTM A312 TP347H Stainless Steel For Waste Heat Boilers
ASTM A312 TP347H High Frequency Welded (HFW) stainless steel finned tubes are top-tier, high-efficiency heat exchange elements designed specifically for high-temperature, high-pressure, highly corrosive, and high-dust waste heat boiler systems. Using high-carbon niobium-containing austenitic stainless steel TP347H as the base tube, high-frequency induction welding achieves a metallurgical bond between the fins and the base tube, perfectly solving the five core challenges of heat exchange efficiency, high-temperature strength, corrosion resistance, vibration resistance, and ash accumulation resistance in high-temperature flue gas waste heat recovery.
Chemical Composition (%) max
| Grade | C | Mn | P | S | Si | Cr | Ni |
| TP347H | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-13.0 |
The columbium content shall be not less than eight times the carbon content and not more than 1.0%.
Mechanical Properties
| Grade | Tensile Strength min | Yield Strength min | Elongation in 2" or 50mm min |
| TP347H | 75ksi (515 MPa) | 30ksi (205 MPa) | 35% |
TP347H (UNS S34709) is a high-carbon niobium-containing stabilized austenitic stainless steel with a long-term working temperature of ≤ 650℃ and a short-term oxidation resistance temperature of 850~925℃. Its creep strength and endurance strength are far superior to 304H/321H.
Two Main Application Areas and Scenarios of A312 TP347H HFW Finned Tubes
1. Power Industry (Largest Application Market)
Boiler Systems
Economizer: Recovers waste heat from boiler tail gas to heat feedwater, improving boiler efficiency by 3%–5% and reducing coal consumption.
Air Preheater: Preheats combustion air, reduces exhaust gas temperature, and promotes complete fuel combustion.
Superheater/Reheater: TP321/347 material, used for high-temperature steam superheating, suitable for operating conditions below 600℃.
Waste Heat Boiler (HRSG): Recovers waste heat from gas turbine/internal combustion engine exhaust gas to generate steam and generate electricity, suitable for flue gas temperatures of 200–600℃.
Nuclear Power/Geothermal: Steam generator, condenser, geothermal heat exchanger, suitable for high temperature, high pressure, and complex media.
2. Petrochemical Industry (Second Largest Application Market)
Process Heating/ Cooling: Shell-and-tube heat exchangers and air coolers for reactors, fractionation towers, and heating furnaces, handling high-temperature and corrosive media (oil and gas, acids and alkalis, hydrogen sulfide).
Waste Heat Recovery: Waste heat recovery from flue gas/process gas in refining units, ethylene cracking, and ammonia synthesis to improve energy efficiency.
Oil and Gas Processing: Natural gas coolers, oil and gas separators, and heat exchange equipment for offshore platforms; 316L stainless steel resistant to seawater/chloride ion corrosion.
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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