ASTM A179 U-Bend Tube - Seamless Cold-Drawn Low-Carbon Steel for Heat Exchanger & Condenser Applications
ASTM A179 U-Bend Tube - Seamless Cold-Drawn Low-Carbon Steel for Heat Exchanger & Condenser Applications
YUHONG Group, with over 35 years of industrial expertise and a global presence spanning 85 countries, specializes in manufacturing precision-engineered tubing solutions for thermal applications. Our ASTM A179 U-Bend Tubes are cold-drawn from low-carbon steel to provide optimal heat transfer performance in exchangers and condensers. We maintain strict quality control throughout the manufacturing process, ensuring each U-bend tube meets exact dimensional tolerances and performance requirements for reliable operation in critical thermal systems.
Chemical Composition Requirements
| Element | Composition (%) |
| Carbon (C) | 0.06 - 0.18 |
| Manganese (Mn) | 0.27 - 0.63 |
| Phosphorus (P), max | 0.035 |
| Sulfur (S), max | 0.035 |
Mechanical Properties & Hardness
| Property | Requirement |
| Tensile Strength, min | 325 MPa (47,000 psi) |
| Yield Strength, min | 180 MPa (26,000 psi) |
| Hardness, max | 72 HRBW |
Standard Test Requirements
| Test Type | Requirement |
| Flattening Test | On specimens from each of two tubes per lot |
| Flaring Test | On specimens from each of two tubes per lot |
| Hardness Test | Rockwell test on two tubes per lot |
| Hydrostatic Test | Required for each tube (or NDT as specified) |
Key Product Advantages
- Optimized Heat Transfer Performance: The U-bend configuration provides maximum surface area for efficient heat transfer in condensers and heat exchangers, while the minimum wall thickness specification ensures optimal thermal conductivity.
- Excellent Formability and Strength: The low-carbon steel composition combined with cold-drawing process provides excellent ductility for U-bend formation while maintaining sufficient mechanical strength for pressure applications.
- Reliable Quality Assurance: Each production lot undergoes comprehensive testing including flattening, flaring, and hardness tests to ensure material integrity and performance reliability.
- Cost-Effective Thermal Solution: Provides superior performance for heat transfer applications at a competitive cost compared to alloy materials, offering excellent value for condenser and heat exchanger systems.
- Proven Compatibility: Widely accepted and specified for thermal applications in power generation, chemical processing, and HVAC industries.
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