ASME SA516 GR.70N Stationary Tubesheet for Heat Exchanger Accessories Application
A stationary tubesheet is an essential component of a heat exchanger that separates two fluid streams from each other. It is a piece of metal construction that has holes drilled through it to allow heat exchange tubes to pass through. The tubesheet is usually stationary or fixed, meaning it cannot move or rotate relative to the heat exchanger shell.
The main characteristic of a stationary tubesheet is that it is typically welded or clamped in place to provide a secure and leak-proof connection between the tubes and the shell. This design helps to prevent any undesired mixing or contamination of the fluid streams. Stationary tubesheets are commonly used in applications where the thermal, chemical, and mechanical properties of the fluids are known and stable, and no significant variations in temperature or pressure are likely to occur.
Where is the stationary Tubesheet located in the floating head heat exchanger?
The tubesheet at the rear header end of the shell is of slightly smaller diameter than the shell, allowing the bundle to be pulled through the shell. The use of a floating head means that thermal expansion can be allowed for and the tube bundle can be removed for cleaning.
Chemical Composition OF A516 GR.70
| C | Si | Mn | P | S | Al | Cr | Cu | Ni | Mo | Nb | Ti | V |
| 0.18 | 0.4 | 0.95/1.50 | 0.015 | 0.008 | 0.02 (Min) | 0.3 | 0.3 | 0.3 | 0.08 | 0.01 | 0.03 | 0.02 |
Equivalent Material
| British Standard | European Norm | ASTM/ASME |
| BS1501-224-490A/B | EN10028 P355GH | A/SA516 - Grade 70 |
Mechanical Requirements
| Mechanical property | Value |
| Tensile Strength, MPa (ksi) | 485-620 (70-90) |
| Yield Strength, min MPa (ksi) | 260 (38) |
| Elongation min, % 200 mm (8 in) | 17 |
| Elongation min, % 50 mm (2 in) | 21 |
Stationary tubesheets are widely used in various industries for heat transfer applications. Some of the common application industries are:
1. Petrochemical industry: Stationary tubesheets are commonly used in heat exchangers used for processing of crude oil, petrochemicals, and other petroleum-based products.
2. Power generation industry: Stationary tubesheets are used in the heat exchangers of power plants, such as steam generators, condensers, and cooling towers.
3. Food and beverage industry: Stationary tubesheets are used in heat exchangers for pasteurization and other processing applications.
4. Pharmaceutical industry: Stationary tubesheets are used in heat exchangers used for the processing of pharmaceuticals and other medical products.
5. HVAC industry: Stationary tubesheets are used in air conditioning and refrigeration systems for heat transfer applications.
6. Chemical industry: Stationary tubesheets are used in heat exchangers, reactors, and distillation columns for chemical processing applications.
Overall, stationary tubesheets are essential components in various industrial applications requiring efficient heat transfer between two fluid streams.
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ASME SA516 GR.70N Stationary Tubesheet For Heat Exchanger Accessories Application Images
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