Phosphate coating for stainless steel
Phosphate coating for stainless steel
(OP)
Hi All,
I would like to know the reason why phosphate coating is not suitable for stainless steel?
Saw one of the posts stated that Cr contents above 5% is not suitable. In wiki, it stated high nickel contents.
May I know why and how it affects the SS?
Thanks for the guidances in advance.
Jeffrey
I would like to know the reason why phosphate coating is not suitable for stainless steel?
Saw one of the posts stated that Cr contents above 5% is not suitable. In wiki, it stated high nickel contents.
May I know why and how it affects the SS?
Thanks for the guidances in advance.
Jeffrey





RE: Phosphate coating for stainless steel
less noble (anodic) element vs base material according to galvanic chart.
RE: Phosphate coating for stainless steel
RE: Phosphate coating for stainless steel
I was going through some of the engineering standards for the current company I work in. I observed that the phosphate coating cannot be done in SS but can be done LAS. I was wondering why is it so. One of my colleagues was telling me that the previous company he worked in, tried to do phosphate coating on SS but the coating can be scrapped off easily.
I understand now that it is due to the passive layer of the stainless steel. Thanks for providing me the details. Appreciated.
Cheers,
Jeffrey