YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Supply Ability | 1000 tons/month |
| Delivery Time | 30-50 days |
| Packaging Details | Ply-wooden Case With Iron Frame |
| Product | Fin Tubes or Finned Tube |
| Type | High Frequency Welding / Helical Solid Fin Tubes |
| Base Tubes Standard And Material | Stainless Steel ASTM A312 TP321H |
| Fins Material | Carbon Steel |
| HFW Finned Tubes Size and details | According to clients' need |
| HFW Finned Tubes Length | According to clients' need |
| HFW Finned Tubes Use | Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators, etc |
| HFW Finned Tubes Packing | Ply-wooden Case With Iron Frame |
| Brand Name | YuHong HFW Finned Tubes |
| Model Number | ASTM A312 TP321H |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | TT, LC | Supply Ability | 1000 tons/month |
| Delivery Time | 30-50 days | Packaging Details | Ply-wooden Case With Iron Frame |
| Product | Fin Tubes or Finned Tube | Type | High Frequency Welding / Helical Solid Fin Tubes |
| Base Tubes Standard And Material | Stainless Steel ASTM A312 TP321H | Fins Material | Carbon Steel |
| HFW Finned Tubes Size and details | According to clients' need | HFW Finned Tubes Length | According to clients' need |
| HFW Finned Tubes Use | Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators, etc | HFW Finned Tubes Packing | Ply-wooden Case With Iron Frame |
| Brand Name | YuHong HFW Finned Tubes | Model Number | ASTM A312 TP321H |
| Certification | ABS, BV, DNV, CCS, LR | Place of Origin | China |
| High Light | ASTM A312 TP321H finned tubes ，high frequency welded fin tubes ，power plant solid fin tubes | ||
ASTM A312 TP321H High Frequency Welded Finned Tubes CS Fins for Power Plant
ASTM A312 This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stain less steel pipe intended for high-temperature and general corrosive service,such as power plants, boilers, superheaters, and heat exchangers.Wall thickness generally for pipes is average.
TP321H is a high-carbon variant of 321 for improved high-temperature strength. Austenitic stainless steel with Titanium can prevent carbide precipitation (sensitization) during welding or high-temperature service.
TP321H with a excellent creep resistance and oxidation resistance at elevated temperatures,and suitable for boiler tubes, superheaters, and reheaters in coal-fired, gas-fired, and nuclear power plants. And the material has good resistance to sulfidation, steam oxidation, and acidic environments,can resistant to intergranular corrosion due to titanium stabilization.
Testing & Certification
• Hydrostatic testing
• Non-destructive testing (NDT) – Ultrasonic, Eddy Current
• Chemical & Mechanical Property Certification (MTC)
Chemical Composition (%) max S32109
| Grade | C | Mn | P | S | Si | Cr | Ni |
| TP321H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 1.00 | 17.0-19.0 | 9.0-12.0 |
Mechanical Properties S32109
| Grade | Heat Treating Temperature | Tensile Strength,min | Yield Strength (0.2%Offset,min) | |
| TP321H | Cold: 2000°F[1100°C] | Hot:1925°F[1050°C] | 75ksi (515 MPa) | 30ksi (205 MPa) |
Design Advantages ASTM A312 TP321H Solid Fin Tubes With CS Fins
| Enhanced Heat Transfer Efficiency | High thermal conductivity of carbon steel fins improves heat exchange.TP321H base tube ensures corrosion resistance in high-temperature steam/water environments.Extended surface area (due to fins) increases heat transfer rates in boilers, superheaters, and economizers. |
| High-Temperature & Creep Resistance | Titanium stabilization prevents sensitization (carbide precipitation) during prolonged high-temperature exposure.TP321H (high-carbon 321) offers superior creep resistance at a high temperatures. |
| Corrosion & Oxidation Resistance | CS fins (externally) can be coated/aluminized if exposed to harsh environments.TP321H inner tube resists steam oxidation and sulfidation&acid flue gas corrosion. |
| Cost Optimization | Carbon steel fins are cheaper than stainless steel, reducing overall cost while maintaining performance. |
Applications in Power Plant
High-pressure steam sections:Boiler tubes
Exposed to extreme heat:Superheaters & reheaters
Improving thermal efficiency:Air preheaters & economizers
Corrosion-resistant inside, cost-effective outside:Flue gas heat recovery systems
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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