Reasons for discoloration inside stainless steel pipes
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This post was last edited by Qixiuxin on 2023-11-3 09:51: 11313111111111111111111111
The oxide film after acid cleaning and passivation is shiny.
Hydrogen peroxide is a strong oxidizing agent; did a reaction occur? ? ? ?
Hydrogen peroxide is a strong oxidizing agent. Stainless steel pipes contain high levels of manganese, which accelerates the decomposition of hydrogen peroxide. As hydrogen peroxide decomposes into oxygen and water, this accelerates the corrosion of the pipes. This is just my personal understanding; I’m looking for the correct explanation
Hydrogen peroxide is a strong oxidizing agent. Stainless steel pipes contain high levels of manganese, which accelerates the decomposition of hydrogen peroxide. As hydrogen peroxide decomposes into oxygen and water, this accelerates the corrosion of the pipes. This is just my personal understanding; I’m looking for the correct explanation
Is it due to the presence of iron ions during installation, or was the final step of acid cleaning forgotten?
What was said downstairs about its reaction with hydrogen peroxide is definitely incorrect; this material is recommended for use in hydrogen peroxide pipelines. I’m not sure if there is any source for your analysis
Stainless steel pipes are used as water and steam pipes; in the same way, rust that forms on their surface can be wiped off. Our company has a xylene storage tank that is sprayed with tap water; it gets covered in rust within a few days. We stopped paying attention to it afterward, as there was no effective solution – it just looked unsightly