ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger
Brand Name:YUHONG
Certification:ASME U Stamp, PED 2014/68/EU, ISO 9001/14001
Model Number:Fixed Tube Sheet Heat Exchanger
Minimum Order Quantity:1 SET
Delivery Time:120 days
Payment Terms:T/T, L/C AT SIGHT
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Ningbo Zhejiang China
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20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
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ASTM SA179 Seamless Carbon Steel tube for Fixed Tube Sheet Heat Exchanger
Yuhong Holding Group Co., Ltd is a globally recognized leader in the manufacturing and supply of industrial equipment, including heat exchangers, fired heaters, air coolers, and their critical components. With decades of expertise and a commitment to delivering the highest quality products, we serve customers across various industries worldwide. Among our premium offerings is the ASTM SA179 Seamless Carbon Steel Tube, specifically designed for Fixed Tube Sheet Heat Exchangers. Renowned for its excellent thermal conductivity, durability, and reliability, SA179 seamless tubes are the ideal choice for efficient and long-lasting heat exchanger systems.
1. ASTM SA179 Chemical Composition and Mechanical Properties
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.06 |
| Manganese (Mn) | 0.27–0.63 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
The low carbon content in SA179 minimizes the risk of carbide precipitation, ensuring superior ductility and weldability while maintaining excellent thermal conductivity.
| Property | Value |
|---|---|
| Tensile Strength | ≥ 325 MPa (47,000 psi) |
| Yield Strength | ≥ 180 MPa (26,000 psi) |
| Elongation | ≥ 35% |
| Hardness | ≤ 72 HRB |
These mechanical properties ensure that SA179 seamless tubes can withstand high pressures and temperatures while maintaining structural integrity and efficient heat transfer.
2. Technical Specifications
| No. | Parameter | Specification |
| 1 | Design Pressure (Shell) | 2.5 MPa (362 psi) |
| 2 | Design Pressure (Tube) | 4.0 MPa (580 psi) |
| 3 | Nozzle Standards | ANSI B16.5 RF Flanges (Class 150/300) |
| 4 | Flange Material | ASTM A105 Forged Carbon Steel |
| 5 | Gasket Type | Spiral-Wound (SS316L + Graphite Filler) |
| 6 | Bolting | ASTM A193 B7 Studs + A194 2H Nuts |
| 7 | Supports | Fixed Saddle Supports (SA516 Gr.70) |
| 8 | Surface Finish (Shell) | Sandblasted (SA 2.5) + Epoxy Coating (≥120 μm) |
| 9 | Tube Interior Finish | Electropolished (Ra ≤0.8 μm) |
| 10 | Thermal Efficiency | ≥95% (Clean Condition) |
| 11 | Heat Transfer Coefficient | 500–1,200 W/m²·K (Varies with Steam Velocity) |
| 12 | Shell-Side Pressure Drop | ≤0.05 MPa (7.25 psi) |
| 13 | Tube-Side Pressure Drop | ≤0.1 MPa (14.5 psi) |
| 14 | Fouling Resistance | 0.0002 m²·K/W (Tube Side) / 0.0001 m²·K/W (Shell Side) |
| 15 | Max Steam Flow Rate | 50–200 t/h |
| 16 | Condensing Capacity | 10–100 MW |
| 17 | Welding Standards | ASME Sec IX (SAW for Longitudinal Welds, GTAW for Tube-to-Tubesheet Joints) |
| 18 | NDT Methods | 100% RT (Shell Welds), PT (Tubesheet Joints), UT (Clad Bond Integrity) |
| 19 | Hydrostatic Test | 1.5× Design Pressure (30 Minutes, Zero Leakage) |
| 20 | Pneumatic Test | 1.1× Design Pressure (Helium Mass Spectrometry Leak Detection) |
| 21 | Third-Party Inspection | TÜV/SGS Witnessed (Optional) |
| 22 | Certifications | ASME U Stamp, PED 2014/68/EU, ISO 9001/14001 |
| 23 | Installation Environment | Indoor/Outdoor (IP55 Protection), Seismic Zone 4 (IBC 2018) |
3. Fixed Tube Sheet Heat Exchanger Design
Fixed tube sheet heat exchangers are one of the most common types of heat exchangers. They are designed with tubes permanently attached to the tube sheet, providing a simple and robust construction. The ASTM SA179 Seamless Carbon Steel Tubes are perfectly suited for these systems due to their excellent heat transfer properties and ability to withstand high pressures and temperatures.
Advantages of Fixed Tube Sheet Heat Exchangers
Cost-Effective Design:
- Simple construction with no floating components, reducing manufacturing and maintenance costs.
High Efficiency:
- The large surface area of the tubes allows for efficient heat transfer between fluids.
Durability:
- Fixed tube sheet designs are robust and capable of handling harsh operating conditions.
Wide Range of Applications:
- Suitable for various fluids, including liquids and gases, making them versatile for different industries.
4. Applications of ASTM SA179 Seamless Tubes
The ASTM SA179 Seamless Carbon Steel Tubes are used in a wide range of industrial applications where efficient heat transfer is essential. These tubes are particularly suitable for fixed tube sheet heat exchangers operating under high pressures and temperatures.
Key Application Areas
Petrochemical Industry:
- Used in heat exchangers for refining processes, chemical plants, and gas processing facilities.
Power Generation:
- In steam condensers, feedwater heaters, and other critical heat exchangers in power plants.
Oil and Gas Industry:
- Suitable for offshore platforms, pipelines, and processing plants where reliable heat transfer is critical.
HVAC Systems:
- Used in large-scale heating, ventilation, and air conditioning systems for cooling and heating.
Food and Beverage Industry:
- In sanitary heat exchangers for processes requiring high-quality heat transfer and cleanliness.
Chemical Processing:
- Ideal for reactors and heat exchangers in chemical manufacturing plants.
ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger
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