Selection of alloy materials at low pH values
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@Medium 1: 1.8 wt.% sulfuric acid, 0.7 wt.% ferrous sulfate, 5747 mg/L chloride ions; temperature 30°C. Medium 2: 1.3 wt.% sulfuric acid, 0.5 wt.% ferrous sulfate, 1200 mg/L chloride ions; temperature 30°C. Medium 3: 0.5 wt.% sulfuric acid, 0.025 wt.% ferrous sulfate, 400 mg/L chloride ions; temperature 30°C. Is it possible to use dual-phase steel 2205 with these three media? I would appreciate some advice from those who are more experienced.
Medium 2: 1.3 wt.% sulfuric acid, 0.5 wt.% ferrous sulfate, 1200 mg/L chloride ions, temperature 30°C
The post can’t sink; my problem hasn’t been solved yet!
More @experts, please! The temperature isn’t high; it’s at room temperature. Is heating necessary? If it’s just for storage, why is it necessary to use duplex steel? Is the quantity large? Non-metallic materials such as glass lining and plastic lining are both available