ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
Price:
Negotiable
MOQ:
100kgs
Delivery Time:
7days
Brand:
Yuhong
Product Description
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
| Attribute | Value |
|---|---|
| Type | High Frequency Welding Fin Tubes |
| Stud Pitch | As Per Client Request |
| Fin Thick | 0.8mm-3mm |
| Bare Tube Diameter | 16mm-219mm |
| Production Process | Cold Drawn |
| Ndt | Hydrostatic Test, PT |
| Fpi | 9-13 |
| Welding Area | According to actual demand |
Introduction
This finned tube is made from ASTM A376 TP347H, a high-temperature austenitic stainless steel pipe, combined with carbon steel solid fins welded onto the outer surface using high-frequency welding (HFW). It is widely used in high-temperature heat exchangers, furnaces, and power plant economizers, where enhanced heat transfer and structural durability are critical.
Chemical Composition
Base Tube - ASTM A376 TP347H
| 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 to 1.10 |
| Fe | Balance |
Fin Strip - Carbon Steel (e.g., Q235B)
| Element | Content (%) |
|---|---|
| C | ≤ 0.22 |
| Mn | 0.30 - 0.70 |
| Si | ≤ 0.35 |
| P | ≤ 0.045 |
| S | ≤ 0.050 |
| Fe | Balance |
Mechanical Properties
| Property | TP347H BaseTube | Carbon Steel Fin |
|---|---|---|
| Tensile Strength | ≥ 515 MPa | 375-500 MPa |
| Yield Strength | ≥ 205 MPa | ≥ 235 MPa |
| Elongation | ≥ 35% | ≥ 20% |
| Hardness | ≤ 95 HRB | ≤ 120 HB |
Advantages
- Excellent High-Temperature Resistance: TP347H is stabilized with niobium for long-term strength at elevated temperatures.
- Strong Weldability: High-frequency welding ensures firm bonding between tube and fins.
- Enhanced Heat Transfer Surface: Solid fins increase surface area and improve heat dissipation.
- Cost-Effective Fin Material: Carbon steel fins reduce costs while maintaining adequate thermal performance.
- Mechanical Durability: Good resistance to thermal stress and mechanical vibration in fired heaters and economizers.
Applications
Used in high-temperature and high-pressure systems, such as:
- Furnace Convection Sections
- Power Plant Economizers
- Petrochemical Reboilers
- Heat Recovery Boilers
- Heater Coils in Oil Refineries
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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.