Urgent help needed: 40% hydrochloric acid solution to corrode materials
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For a 40% hydrochloric acid solution, what material should be used for corrosion protection?
CPVC can be used with hydrochloric acid at this concentration at 80°C; RPP can be used at this concentration at 40°C; fiberglass can be used at this concentration below 70°C
Reply to 1# Shing Hai: OP, what are your operating temperature and pressure? This is quite broad! Positive and negative pressures have different requirements for the manufacturing processes of your equipment and fittings!
The conditions aren’t sufficient – how can I make a choice? The pressure and temperature need to be specified clearly! Only in this way can the right model be selected
The conditions are too poor; also, are it the pipes or the equipment?
Do you have PN80/80/25 polypropylene tees (with the 80 mm port connected by flanges and the 25 mm port connected by internal threads)?
There’s no temperature or pressure – what about the conditions?
In cases where the temperature is not high: 1. For plastics, details are provided above. 2. For metals, 2205 and 904L can be used; at high temperatures and high concentrations, metals are the only option, such as Hastelloy B-2 or B-3. Hastelloy B-3 can be used at a concentration of 40%. It depends on the operating temperature.