Hydrogen peroxide pipeline material issue
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This post was last edited by zhangrebecca on 2018-12-6 08:58. I would like to ask everyone: for hydrogen peroxide at room temperature with a concentration of 27.5%, should material 321 be used for the pipes? . . What problems will arise if ordinary 304 material is used?
321 is the preferred choice; actually, 304 is also viable since the concentration isn’t very high. For hydrogen peroxide pipelines, 321 is commonly used.
316L – this is the material used by all manufacturers
321 and 316 are both fine; 304 is a bit inferior
Hydrogen peroxide has strong oxidizing properties and a certain degree of corrosiveness; moreover, it is unstable and decomposes into water and oxygen. When selecting a material for hydrogen peroxide, two factors need to be considered: first, it must be resistant to corrosion by hydrogen peroxide, and second, it must have good compatibility with it without causing its decomposition. 304 material is slightly inferior in terms of corrosion resistance and compatibility
According to the corrosion data sheet, 304 steel can be used with hydrogen peroxide at concentrations of 10–40%
Hydrogen peroxide has strong oxidizing properties and a certain degree of corrosiveness; moreover, it is unstable and decomposes into water and oxygen. When selecting a material for use with hydrogen peroxide, two factors need to be taken into account: first, the material must be resistant to its corrosive effects, and second, it must have good compatibility with hydrogen peroxide without causing it to decompose. 304 steel is slightly inferior in terms of corrosion resistance and compatibility. The explanation is very clear; based solely on the corrosion data sheets, 304 and 316 are quite similar, essentially the same. However, the compatibility of 304 is slightly worse.
Is it in the corrosion data and material selection manual? Could you tell me which page it is? Thank you
I watched the older version; for the new version, check the corrosion data for austenitic stainless steel