Stainless vs. Chrome Plated
Stainless vs. Chrome Plated
(OP)
Our company is considering using stainless steel for the exposed parts of our machine. Currently, we use .001 in. thick chrome plated carbon steel. We are trying to slow down the rust process. Is there a major advantage to stainless steel over the chrome plate? The dimensions of the part are 3" diameter rod, 10" long, exposed to sea air.
Thanks
Thanks





RE: Stainless vs. Chrome Plated
With stainless steel, the corrosion is over the entire surface, so it is more distributed.
Sorry, I am not much more help.
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RE: Stainless vs. Chrome Plated
Don't bother with austenitics like 316, 317. Too expensive for not enough corrosion resistance.
Michael McGuire
http://stainlesssteelforengineers.blogspot.com/
RE: Stainless vs. Chrome Plated
RE: Stainless vs. Chrome Plated
RE: Stainless vs. Chrome Plated
RE: Stainless vs. Chrome Plated
FYI, newer hard chrome plating processes have been developed that change the deposit characteristics such that some corrosion resistance is provided. Depending on the plating thickness and post processing performed, corrosion resistance in standard salt spray tests can be greater than 150 hours with no red rust. Still a long away from immunity though...
RE: Stainless vs. Chrome Plated
Your next concern should be the end connections. If this part fits into a steel part you will increase the corrosion on the steel part.
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RE: Stainless vs. Chrome Plated
RE: Stainless vs. Chrome Plated
Another idea is to modify your current plating by adding a thin nickel layer underneath the chrome such that the base material is "sealed" from the exposure given by the micro-cracks in the chrome layer.
RE: Stainless vs. Chrome Plated
ornerynorsk:
Sometimes we see "nitride procesed" in the spec. Isnt this expensive?
RE: Stainless vs. Chrome Plated