Which metal material is suitable for a gaseous mixture of hydrochloric acid at around 0.5% concentration and water?
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I would like to ask the experts: among metal materials, which one can resist corrosion in a gaseous mixture of hydrochloric acid and water with a concentration of around 0.5% (by mass)? Around 30 degrees in temperature, 2 KPa of negative pressure, or which type of corrosion protection is effective. Thank you!
Why must metal materials be used?
A device with a diameter of 3 meters, equipped with many accessories, at 140–150 degrees and in a high vacuum environment. Is corrosion protection for non-metals or metals possible at room temperature?
Metal outer wall; lining can be ceramic, glass, or PTFE
Metal 316L should be fine, right?