ASME SA179 Carbon Steel U Bend Tube For Boiler Heat Exchanger Application
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ASME SA179 Carbon Steel U Bend Tube For Boiler Heat Exchanger Application
This product is a high-performance piping component specifically designed for pressure vessels and heat exchange equipment. It is manufactured from cold-drawn low-carbon steel tubes (ASME SA179 standard) and precision-bent into a U-shape configuration.
The tube offers excellent thermal conductivity, pressure resistance, and fatigue strength, making it ideal for boilers, condensers, evaporators, and other high-temperature/pressure heat transfer systems. Its U-bend design effectively absorbs thermal expansion stress, reduces the number of welded joints, and enhances equipment reliability and service life.
1.Chemical & Mechanical Properties
| ASME SA179 Chemical Composition (%) | |||||
| C | Mn | P | S | Si | Fe |
| 0.06% - 0.18% | 0.27% - 0.63% | ≤ 0.035% | ≤ 0.035% | ≥ 0.10% | Balance (≥ 98%) |
Mechanical Properties
| Component | Mechanical Performance | Key Features |
| ASME SA179 Tube |
· Tensile Strength: ≥325 MPa · Yield Strength: ≥180 MPa · Elongation (in 50mm): ≥35% · Hardness: ≤ 72HRB |
· Precision cold-drawn seamless tubing for minimum wall thickness · Thermal Conductivity: 52 W/m·K at 20°C · Superior resistance to oxidation and water corrosion · Maximum Operating Temperature: 650°C (1200°F) for continuous service · Moderate strength: Suitable for low/medium-pressure heat exchangers. |
2. Product Principle
U-tubes are usually used to exchange heat in process fluids with large radiators. The fluid is pumped out through a pipe, through a U-Junction, and then flows back along a pipe parallel to the inflow line.
Heat is transferred to the wrapping material through the wall of the tube. This design is used in industrial applications where many U-tubes can be poured into oil containers with high heat capacity.
3. Key Advantages
- Manufactured from ASME SA179 standard low-carbon steel with excellent mechanical properties and workability
- Professional cold bending process ensures crack-free and deformation-free bends
- Optimized tube wall design for efficient heat transfer
- Capable of withstanding high-pressure working environments for long-term stable operation
- U-shape structure effectively absorbs thermal expansion stress, extending service life
- Integral forming design reduces leakage risks and improves safety
- Smooth inner and outer surface treatment reduces flow resistance
4. Key Applications
- Boiler Systems
Heat exchange components for thermal power plants and industrial boilers
- Petrochemical Equipment
Pressure vessels and heat exchangers in refineries and chemical plants
- Power Generation Industry
Critical components for power plant boilers and waste heat recovery systems
- HVAC Systems
Heat exchange units for large-scale central air conditioning systems
- Pharmaceutical Industry
Steam heating and cooling systems in pharmaceutical processes
- Marine Engineering
Heat exchange components for marine boilers and auxiliary power systems
- Industrial Manufacturing
Various industrial processing equipment requiring heat exchange
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