ABSTRACT

In engineering practice the selection of materials of construction depends on the equipment being designed and the service requirements imposed on them. Selection of materials involves the thorough understanding of their availability, source, lead time, product forms, and size. In simple terms, the following factors are to be considered while selecting the materials for heat exchanger and pressure vessel components:

1. Compatibility of the materials with the process fluids. 2. Compatibility of the materials with the other component materials. 3. Ease of manufacture and fabrication by using standard methods like machining, rolling,

forging, forming, and metal joining methods such as welding, brazing, and soldering. 4. Strength and ability to withstand operating temperature and pressure. 5. Cost. 6. Availability.