Selection of material for 40%*ao acid valves
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The medium is 40%*ao acid, with an operating density of 1000 KG/m3. The pressure before the valve is 0.4 MPaG. Can WCB be used for the valve body material, and 304 for the valve internals?
Just to add, the temperature is room temperature!
http://bbs.hcbbs.com/thread-1285893-1-1.html I found that someone had asked a similar question before. . . Is there anything else besides 40%*ao acid? This medium cannot be described clearly. Corrosion-resistant applications generally use stainless steel designed for this purpose.
It is recommended to use C4 stainless steel to resist acids at all concentrations*
There are no other ingredients; it refers to 40% *ao acid