YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT,LC |
| Supply Ability | According to Clients' requirements |
| Delivery Time | 45-60 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 A376 TP347H |
| Bare Tube OD | 16~325 mm |
| Fin material | 11Cr |
| Fin Height | ＜30mm |
| Fin Thickness | 0.8~3mm |
| Fin Pitch | 3~25 |
| Application | Boiler superheaters and reheaters; Power‑plant heat exchangers; Petrochemical process heaters; High‑temperature waste‑heat recovery systems... |
| Brand Name | Yuhong |
| Model Number | ASTM A376 TP347H Solid Finned Tube 11Cr Fins |
| 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 | 45-60 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 A376 TP347H |
| Bare Tube OD | 16~325 mm | Fin material | 11Cr |
| Fin Height | ＜30mm | Fin Thickness | 0.8~3mm |
| Fin Pitch | 3~25 | Application | Boiler superheaters and reheaters; Power‑plant heat exchangers; Petrochemical process heaters; High‑temperature waste‑heat recovery systems... |
| Brand Name | Yuhong | Model Number | ASTM A376 TP347H Solid Finned Tube 11Cr Fins |
| Certification | ABS, BV, DNV, CCS, LR | Place of Origin | China |
| High Light | ASTM A376 TP347H finned tube ，11Cr solid fin tube ，boiler superheater finned tube | ||
ASTM A376 TP347H Solid Finned Tube 11Cr Fins For Boiler Superheater and Reheater
Our ASTM A376 TP347H HFW 11Cr Solid Finned Tube is a high-performance heat exchange component specifically engineered for harsh high-temperature and corrosive environments. Combining a premium base tube with high-chromium alloy fins, it delivers exceptional heat transfer efficiency, structural stability, and long-term durability, making it an ideal choice for critical industrial applications.
Core Specifications:
1. Base Tube: ASTM A376 TP347H Seamless Pipe
Conforms to ASTM A376 standard, grade TP347H (UNS S34709) — a niobium-stabilized austenitic stainless steel with high carbon content. This grade offers excellent resistance to intergranular corrosion in the temperature range of 427–816°C (800–1500°F) and superior creep strength at elevated temperatures up to approximately 850°C.
(1) Chemical Composition (wt%)
The addition of niobium (columbium) is a key feature, as it prevents intergranular corrosion by forming carbides instead of allowing chromium carbides to precipitate at grain boundaries.
| Element | Composition (% by weight) | Notes |
| Carbon (C) | 0.04 – 0.10 | Controlled higher range for high-temperature strength |
| Manganese (Mn) | 2.00 max | |
| Phosphorus (P) | 0.045 max | |
| Sulfur (S) | 0.030 max | |
| Silicon (Si) | 1.00 max | Improves oxidation resistance |
| Chromium (Cr) | 17.0 – 19.0 | Provides corrosion and oxidation resistance |
| Nickel (Ni) | 9.0 – 13.0 | Stabilizes the austenitic structure |
| Niobium (Nb) | ≥ 8 × C%, ≤ 1.10 | Stabilization element to prevent intergranular corrosion |
(2)Mechanical Properties
These properties are typically verified after the pipe has been solution annealed and cooled under controlled conditions
| Property | Requirement (Minimum) | Value (in MPa) |
| Tensile Strength | 75 ksi | 515 MPa |
| Yield Strength (0.2% offset) | 30 ksi | 205 MPa |
| Elongation (in 2 inches / 50mm) | 35% (Longitudinal) | N/A |
2. Fin Type: HFW Solid Finned Tube
Fin Material: 11Cr
3. Key Features of this combination
4. Typical Applications of ASTM A376 TP347H HFW 11Cr Solid Finned Tube
This product is widely used in various high-temperature industrial fields that require efficient heat transfer and corrosion resistance, including:
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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