ASTM A376 TP347H Stainless Steel Solid HF Welding Fin Tube For Convection Coil Tube
Price:
Negotiable
MOQ:
100kgs
Delivery Time:
7 days
Brand:
Yuhong
Product Description
ASTM A376 TP347H Stainless Steel Solid HF Welding Fin Tube For Convection Coil Tube
Product Specifications
| Attribute | Value |
|---|---|
| Base Tube | 16mm-219mm |
| Fin Wall Thickness | 0.8-3mm |
| Fin Pitch | 1 inch |
| Fin Thk | 9.07mm |
| Tube Standard | ASTM A376 |
| Dimensions | 88.9mm, 114.3mm, 168.3mm, etc. |
| Fins | TP347H |
| Corrosion Resistance | High |
| Pipe Length | Custom-sized |
| Welding Area | According to actual demand |
Product Overview
The ASTM A376 TP347H solid fin tube is designed for high-temperature heat transfer systems, especially in convection coil sections of boilers and furnaces. Made from seamless TP347H stainless steel, the tube is externally finned using solid carbon steel or stainless steel strips bonded by high-frequency welding (HFW), significantly improving heat exchange efficiency in compact designs.
Chemical Composition (TP347H Tube)
| 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 |
Mechanical Properties
| Property | Value (TP347H) |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 95 HRB |
| Max. Operating Temp | ~1050°C |
Key Advantages
- High Temperature Strength - Stabilized with niobium (Nb) for superior creep resistance at elevated temperatures.
- Enhanced Heat Transfer - Solid fins provide greater surface area for efficient heat dissipation in convection zones.
- High Welding Integrity - High-frequency welding delivers tight fin-to-tube bonding, even under thermal cycling.
- Corrosion and Oxidation Resistant - Excellent resistance to scaling and corrosion in flue gas environments.
- Long Service Life - Durable construction ideal for continuous-duty, high-heat applications.
Typical Applications
Used primarily in the convection section of:
- Fired Heaters (Oil & Gas)
- Industrial Furnaces
- Power Plant Boilers
- Heat Recovery Units
- Steam Superheaters
These tubes are installed horizontally or vertically where they absorb convective heat from flue gases after the radiant zone.
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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.