Seeking advice on material selection for 150° chloride-resistant pressure vessels
Thread Content
Guys, I’m facing difficulties in selecting a suitable material. The main requirement is that the pressure vessel should be resistant to chloride corrosion at 150°, it needs to have high strength, and the cost should be relatively low. I have no idea what material to use; I hope you can help me out
A lot of work has been done on the conditions involving high-temperature chloride ions
So please help the original poster: lol
Please have the technician give a detailed explanation
What device is it? Pump? Heat exchanger? Tower? Pipes? What’s the pressure? Only by making it clear can others help you.
Specify the medium, pressure, and temperature clearly
When the chloride ion concentration is below 300 ppm and the temperature is below 40 degrees Celsius, 316L or duplex steel can be used. In cases of higher concentrations and temperatures, a more cost-effective option is to use Q345R with a titanium lining
Using composite titanium materials yields very good results
If the temperature is below 180°, a tetrafluoride heat exchanger can be considered. Pipelines, pumps, and valves can be equipped with fluorine-lined or molded anti-corrosion coatings depending on the actual conditions! At present, the price of tetrafluoride heat exchangers remains stable, offering a slightly better cost-performance ratio