YUHONG HOLDING GROUP CO., LTD
| Payment Terms | T/T,L/C |
| Delivery Time | 7days |
| Packaging Details | ply-wooden case with iron frame |
| Base Tubes Standard | ASTM A376 |
| Heat Transfer Efficiency | Excellent |
| Size And Details | According to clients' need |
| Length | Max 34M/PC |
| Welding Type | HFW |
| Tube Material Grade | TP347, TP347H |
| Dimensions | 88.9mm, 114.3mm, 168.3mm, etc. |
| Ndt | Hydrostatic Test, PT |
| Brand Name | Yuhong |
| Model Number | ASTM A376 TP347H |
| Certification | ABS, CCS, BV, DNV, LR, |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T,L/C | Delivery Time | 7days |
| Packaging Details | ply-wooden case with iron frame | Base Tubes Standard | ASTM A376 |
| Heat Transfer Efficiency | Excellent | Size And Details | According to clients' need |
| Length | Max 34M/PC | Welding Type | HFW |
| Tube Material Grade | TP347, TP347H | Dimensions | 88.9mm, 114.3mm, 168.3mm, etc. |
| Ndt | Hydrostatic Test, PT | Brand Name | Yuhong |
| Model Number | ASTM A376 TP347H | Certification | ABS, CCS, BV, DNV, LR, |
| Place of Origin | China | ||
| High Light | ASTM A376 Seamless Tube ，TP347H Seamless Tube ，ASTM A376 TP347H Fin Tube | ||
ASTM A376 TP347H, Stainless Steel Seamless Tube, HFW Fin Tube, For Convection Coil Tube
Yuhong Holding Group has been exporting goods like heat exchanger tube, boiler tube, fin tube to all over the world. We can provide the all kinds of tube like stainless steel, carbon steel, alloy steel, nickel alloy steel... HFW fin tube is what we are specialized in. Equipped with 10 production lines, we can provide hundreds and thousands tons of fin tube.
The ASTM A376 TP347H HFW fin tube combines a seamless stainless steel core with high-frequency welded (HFW) fins, designed for convection coils in fired heaters, boilers, and power plants. TP347H stainless steel offers excellent resistance to creep, stress corrosion, and high-temperature oxidation, making it a premium choice in critical heat transfer zones.
| Element | Content (%) |
|---|---|
| C | 0.04–0.10 |
| Mn | ≤ 2.00 |
| Si | ≤ 1.00 |
| P | ≤ 0.040 |
| S | ≤ 0.030 |
| Cr | 17.0–19.0 |
| Ni | 9.0–13.0 |
| Nb (Cb) | 8×C – 1.10 |
| Fe | Balance |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 95 HRB |
| Max Temp. | ~1050°C |
High Temperature Resistance
Performs reliably under sustained high heat in convection zones.
Excellent Oxidation and Creep Resistance
Niobium stabilization minimizes grain boundary failure.
Efficient Heat Transfer
Fin-to-tube bonding via HFW enhances thermal performance with high mechanical strength.
Durability in Corrosive Environments
Suitable for aggressive flue gas compositions and steam applications.
The tube is used in the convection section of:
Fired Heaters
(hydrocarbon processing, refinery units)
Power Boilers & Steam Generators
Steam Superheaters & Reheaters
Waste Heat Recovery Units
Installation Location:
Located above the radiant section in fired heaters, where gases have cooled slightly and convection heat transfer dominates.
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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