Questions regarding the corrosion resistance to chloride ions of 304L and 316
Thread Content
Hello, teachers! May I ask, at 80°C with a chloride concentration of around 300 mg/L, which material has better corrosion resistance? Thank you!
The Chinese name for 304L is 0Cr18Ni9, while 316 is Cr18Ni12Mo2Ti. At 80°C with chloride ions at around 300 mg/L, 316 stainless steel should have better pitting resistance. Because of the higher Ni content, and also due to the addition of titanium metal, the metal exhibits a better tendency to passivate.
316 has slightly better corrosion resistance to chloride ions.
None of them work; it is recommended to start with duplex steel if conditions permit
The presence of chloride ions indicates that the stainless steel is not reliable, but it is still necessary to take into account the components of the medium, its physicochemical properties, and the operating conditions. Based on our experience, carbon steel or even engineering plastics combined with an industrial coating can suffice. If needed, please provide detailed information and requirements; we can then try to come up with a solution. :D
Using 316L low-carbon steel is better
Using 316L low-carbon steel is better