I do Stingrays myself
I'm trying to sort info here my. When I see a hard chromed part, I know there are no anodic layers to help with long term exposure. In a mechanical setting ( engine or such as I have brought up earlier ) those conditions are different. Oil will help keep the rusting processes controlled. But when parts are exposed to the outside weather conditions, anodic layers are needed. That is why , I thought, hard chroming was saved for stainless and other similar metal alloys that don't need the same anodic properties. But when hard chroming is done on my "normal" steels, it is a cheap coating at best. That is what I would like explained to me, and it is why I thought hard chromes is extensively considered an "engineering" finish rather than an exterior finish. Exterior finish is what we all want on out cars.