We have an application involving use of 10% magnesium chloride solution in water, at pH between 6 - 8, at 15 - 25 deg C. Can SS 316L resist pitting under these conditions? Is there any threat of any other type of corrosion under these conditions?
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Brian Dalder Forum Moderator 175 Posts
Re: Is 316L stainless steel acceptable for aqueous magnesium chloride?6 June 2012 at 1:29pmThe references I checked indicate that 316L stainless steel can give acceptable performance for aqueous 10% magnesium chloride under the conditions you listed. However, as you mentioned there is some risk of localized corrosion such as pitting (and crevice corrosion). The risk will increase significantly if the pH becomes acidic. If impurities are present, their effect on corrosion resistance should be considered as well.