Is Q245R material resistant to hydrogen fluoride?

There is a type of hydrogen fluoride called anhydrous hydrogen fluoride, which has much lower corrosivity

What is the principle of corrosion caused by hydrofluoric acid?

I’m not sure about the principle, as carbon steel is used for the valve materials

It should be that H ions cannot be ionized, so they cannot react with metals

Anhydrous hydrofluoric acid is stored in a steel tank equipped with a jacket. Brine at -10°C is circulated in the jacket to maintain a low temperature and prevent anhydrous hydrofluoric acid from vaporizing. It is generally required that the temperature of anhydrous hydrofluoric acid in the storage tank not exceed 5℃ ； The storage tank is also required to be able to withstand a certain pressure, and a vent pipe connected to the distillation tower or degassing tower should be installed so that HF gas can be recovered rather than being released, while preventing excessive pressure from building up inside the tank. The filling factor of the anhydrous hydrofluoric acid tank shall not exceed 90% of the total tank volume. I worked at a company that produced anhydrous HF for half a year; as an operator, I didn’t come into contact with people at the level of the person who posted this question. The above content was found on the Internet.