Yuhong Group Co.,Ltd
| Payment Terms | T/T, L/C at sight |
| Supply Ability | according to client requirements |
| Delivery Time | 15-30DAYS |
| Packaging Details | according to client requirements/wooden case packing/Iron case packing |
| Standard | ASTM A376 TP347H |
| Material Grade | Stainless, Carbon Steel,Alloy Steel, Copper Steel |
| Fin Type | HFW |
| Tube Diameter | 16-219mm |
| Tube Wall Thickness | Customized |
| Tube Length | Customized |
| Fin Height | 5-30mm |
| Fin Pitch | 3-25mm |
| Fin Thickness | 1.2mm to 2.5mm or Customized |
| Application | Heat Exchanger, Condenser, Evaporator |
| Brand Name | YUHONG |
| Model Number | ASTM A376 TP347H |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T, L/C at sight | Supply Ability | according to client requirements |
| Delivery Time | 15-30DAYS | Packaging Details | according to client requirements/wooden case packing/Iron case packing |
| Standard | ASTM A376 TP347H | Material Grade | Stainless, Carbon Steel,Alloy Steel, Copper Steel |
| Fin Type | HFW | Tube Diameter | 16-219mm |
| Tube Wall Thickness | Customized | Tube Length | Customized |
| Fin Height | 5-30mm | Fin Pitch | 3-25mm |
| Fin Thickness | 1.2mm to 2.5mm or Customized | Application | Heat Exchanger, Condenser, Evaporator |
| Brand Name | YUHONG | Model Number | ASTM A376 TP347H |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | CHINA |
| High Light | 11Cr HFW Fin Tube ，ASTM A376 HFW Fin Tube ，TP347H HFW Fin Tube | ||
ASTM A376 TP347H solid Spiral High Frequency weld HFW Fin Tube With 11Cr
This is a fintube that uses ASTM A376 TP347H austenitic stainless steel bare tube as the base tube and is covered with 11% chromium (11Cr) low-alloy steel fins.
The base tube has excellent high-temperature strength, creep resistance and corrosion resistance, and is suitable for high-pressure and high-temperature conditions (such as power station boiler superheaters); 11Cr steel fins are low-cost and have a certain resistance to high-temperature oxidation, and are often used for contact with external flue gas/airflow.
This design optimizes costs while meeting the stringent requirements of the internal medium, but it is necessary to be vigilant about the electrochemical corrosion that may occur between the stainless steel base tube and the low-alloy steel fins in a humid/electrolyte environment, and ensure that the operating temperature of the fin does not exceed its oxidation resistance limit (about 650℃). It is mainly used in high-temperature heat exchangers, waste heat boilers and other equipment.
| Element | 347 | 347H |
| Chromium | 17.00 min.-19.00 max. | 17.00 min.-19.00 max. |
| Nickel | 9.00 min.-13.00 max. | 9.00 min.-13.00 max. |
| Carbon | 0.08 | 0.04 min.-0.10 max. |
| Manganese | 2.00 | 2.00 |
| Phosphorus | 0.045 | 0.045 |
| Sulfur | 0.03 | 0.03 |
| Silicon | 0.75 | 0.75 |
| Columbium & Tantalum | 10 x (C + N) min.-1.00 max. | 8 x (C + N) min.-1.00 max. |
| Iron | Balance | Balance |
| Yield Strength 0.2% Offset | Ultimate Tensile Strength | Elongation in 2 in. | Hardness | ||
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 30,000 | 205 | 75,000 | 515 | 40 | 201 Brinell |
Application
Power station boilers: economizers, air preheaters, using flue gas waste heat to preheat air/feed water.
Waste heat generator (HRSG): Recover gas turbine exhaust heat to improve overall energy efficiency.
Heating furnace convection section: Increase the preheating temperature of crude oil, heavy oil and other media (e.g. atmospheric pressure furnace, reduced pressure furnace).
Catalytic cracking unit: Regeneration flue gas waste heat recovery (high wear and corrosion resistance requirements).
Natural gas processing: acid gas (H₂S/CO₂) heat exchanger (requires sulfur-resistant materials such as N08825/duplex steel).
Industrial boilers and heating, high-efficiency condensing boilers
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 HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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