ASTM SA516 Gr.70 Bottom Head For High-Pressure Heat Exchangers
ASTM SA516 Gr.70 is a carbon steel material commonly used for pressure vessel applications, including heat exchangers. The bottom head of a heat exchanger is the lower portion of the vessel where the heat transfer process takes place. This component is typically designed to withstand high temperatures and pressure, making SA516 Gr.70 an ideal material choice due to its excellent strength and toughness properties. The use of this material ensures the bottom head of the heat exchanger can effectively transfer heat while maintaining structural integrity and ety.
Specifications and Standards
| Standard | Description |
| ASTM/ASME | A/SA516 - Grade 70 |
| DIN Standard | - |
| British Standard | BS1501-224-490A/B |
| European Norm | EN10028 P355GH |
Chemical Composition
| Composition | Percentage % | Composition | Percentage % |
| C | 0.10/ 0.22 | Cu | 0.3 |
| Si | 0.6 | Ni | 0.3 |
| Mn | 1/ 1.7 | Mo | 0.08 |
| P | 0.03 | Nb | 0.01 |
| S | 0.03 | Ti | 0.03 |
| Al | 0.02 | V | 0.02 |
| Cr | 0.3 | |
The application of ASTM SA516 Gr.70 for the bottom head of a heat exchanger
1. High strength and durability: ASTM SA516 Gr.70 has high tensile strength and excellent toughness, making it ideal for withstanding high pressure and temperature conditions in a heat exchanger.
2. Corrosion resistance: The carbon steel composition of ASTM SA516 Gr.70 provides good resistance to corrosion, ensuring long-term performance and reliability of the heat exchanger bottom head.
3. Weldability: ASTM SA516 Gr.70 is easily weldable, allowing for easy fabrication and assembly of the heat exchanger components.
4. Cost-effectiveness: ASTM SA516 Gr.70 is a cost-effective material choice for heat exchanger construction, offering a good balance of performance and affordability.
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