ASME Certified U-Tube Heat Exchanger | TEMA BEU/AEU Class R for Refinery
Yuhong Holding Group Co., Ltd is a globally recognized manufacturer and supplier of premium industrial equipment, including heat exchangers, fired heaters, air coolers, and related components. With decades of engineering expertise and cutting-edge manufacturing capabilities, we deliver high-quality solutions designed to meet the rigorous demands of industries worldwide. Among our flagship products is the ASME Certificated SA516 Grade 70 Shell and SA179 Tube Heat Exchanger. This product is specifically engineered for H&G Chemical applications, providing exceptional performance, durability, and reliability in critical operating conditions.
SA516 Grade 70 Chemical Composition and Mechanical Properties
SA516 Grade 70 is a carbon steel widely used for pressure vessels and heat exchanger shells due to its excellent weldability, toughness, and ability to withstand high pressure and temperature. The material is ASME-certified, ensuring compliance with international quality and safety standards.
Chemical Composition of SA516 Grade 70
| Element | Composition (%) |
| Carbon (C) | ≤ 0.30 |
| Manganese (Mn) | 0.85–1.20 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | 0.15–0.40 |
The balanced chemical composition ensures excellent strength, ductility, and resistance to stress-induced cracking, making SA516 Grade 70 a preferred choice for the shell components of heat exchangers.
Mechanical Properties of SA516 Grade 70
| Property | Value |
| Tensile Strength | 485–620 MPa (70,000–90,000 psi) |
| Yield Strength | ≥ 260 MPa (38,000 psi) |
| Elongation | ≥ 21% |
| Impact Test | Passed at -50°C (-58°F) |
These properties ensure that the shell of the heat exchanger can withstand high pressures and temperatures while maintaining structural integrity.
SA179 Tube Mechanical Properties
SA179 is a high-quality carbon steel tubing material used in heat exchangers and condensers, offering excellent thermal conductivity, machinability, and corrosion resistance. Its low carbon content ensures superior ductility and performance in demanding applications.
Mechanical Properties of SA179
| Property | Value |
| Tensile Strength | ≥ 325 MPa (47,000 psi) |
| Yield Strength | ≥ 180 MPa (26,000 psi) |
| Elongation | ≥ 35% |
| Hardness | ≤ 72 HRB |
SA179 tubes provide reliable heat transfer performance and are engineered to withstand thermal expansion and pressure fluctuations, making them ideal for high-efficiency heat exchangers.
Advantages of Shell and Tube Heat Exchangers
Shell and tube heat exchangers are among the most commonly used heat exchange systems due to their versatility, efficiency, and robust design. Here are some of the key advantages of using SA516 Grade 70 Shell and SA179 Tube Heat Exchangers:
Key Advantages
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High Efficiency:
- The large surface area of the tubes ensures efficient heat transfer between fluids, even in high-pressure and high-temperature conditions.
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Versatility:
- Suitable for handling a wide range of fluids, including gases, liquids, and steam.
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Durability:
- Constructed from high-quality SA516 Grade 70 shells and SA179 tubes to withstand extreme operating environments and corrosive conditions.
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Ease of Maintenance:
- The modular design allows for easy cleaning, inspection, and replacement of components.
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Customizable Design:
- Can be tailored to meet specific operational requirements, including size, tube material, and pressure specifications.
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Cost-Effective:
- Long service life and minimal maintenance requirements reduce overall operational costs.
These advantages make shell and tube heat exchangers the preferred choice for a wide range of industrial applications.
Applications of Shell and Tube Heat Exchangers
The SA516 Grade 70 Shell and SA179 Tube Heat Exchangers are used across multiple industries due to their reliability and efficiency. Common applications include:
Key Industries
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ASME Certified U-Tube Heat Exchanger | TEMA BEU/AEU Class R for Refinery Images
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