321 Stainless Steel for Heat Exchangers

1. Why use 321 for heat exchangers? It resists intergranular corrosion in welded tube bundles.

2. What heat exchanger types use 321? Shell-and-tube, plate-and-frame (welded), and finned-tube.

3. Can 321 handle high-pressure fluids? Yes, up to 100 bar at moderate temperatures.

4. What is 321's thermal conductivity? 16.2 W/m·°C at 100°C, suitable for heat transfer applications.

5. How to maintain 321 heat exchangers? Regular cleaning to prevent fouling and preserve heat transfer efficiency.