ASTM A376 TP347H HF Welded Fin Tubes With Grade 11-13 Cr Fins For Furnaces
Price:
0-10000 USD
MOQ:
Depend the size of finned tubes, 50-100PC
Delivery Time:
35-60 days
Brand:
YUHONG
Product Description
ASTM A376 TP347H HF Welded Fin Tubes With Grade 11-13 Cr Fins For Furnaces
Product Specifications
| Attribute | Value |
|---|---|
| Product | Fin Tubes or Finned Tube |
| Type | High Frequency Welding Finned Tubes |
| Standard | ASTM A376 |
| Material | Stainless Steel TP347H Base Tubes and Grade 11-13 Cr Fins |
| Use | Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators, etc |
| Packing | Ply-wooden Case With Iron Frame |
Product Description
ASTM A376 specification covers seamless austenitic steel pipe designed for high-temperature central-station service, commonly used in boilers, superheaters, heat exchangers, and other demanding applications.
Chemical Composition (%) max S34709
| Grade | C | Mn | P | S | Si | Cr | Ni |
|---|---|---|---|---|---|---|---|
| TP347H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 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 1.10%.
Mechanical Properties
| Grade | Tensile Strength, min | Yield Strength (0.2% Offset, min) |
|---|---|---|
| TP347H | 75ksi (515 MPa) | 30ksi (205 MPa) |
Key Advantages
- Resists thermal cycling (repeated heating/cooling)
- High creep strength at 800-1000°C (1472-1832°F)
- Nb (Niobium) stabilization prevents carbide precipitation
- Better sulfidation resistance than 304H/321H
- Resists coking & carburization in hydrocarbon environments
- Superior oxidation resistance in steam environments
- Reduces weld decay risk (due to Nb stabilization)
- Longer lifespan than 310S in cyclic heating
- Longer service life (reduces downtime)
- Better weldability than 321H (less sensitization risk)
- Cost-effective for 600-900°C (1112-1652°F) range
High Frequency Welding Fin Tubes
High frequency welding fin tubes are specialized tubes manufactured using high-frequency electrical currents to heat and fuse metal edges without additional filler materials. Base tubes and fins are typically made from carbon steel, alloy, or stainless steel.
Advantages of HFW Finned Tubes
- Enhanced Heat Transfer Efficiency
- Superior Mechanical Strength & Durability
- Cost-Effective Manufacturing
- Design Flexibility & Customization
- Reliable Performance in Harsh Conditions
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Company
YUHONG HOLDING GROUP CO., LTD
Location
20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
Contact Person
Sales Dept. (Marketing Director)