A few days ago I asked about use of stainless steel in grills and
barbeques. A common theme, mentioned by several people, was that a
grill is a terribly corrosive environment because of heat, salt, acid
and condensation, all combining to ruin any ferrous metal. They said
that even stainless would rust.
This is a followup to that discussion. I found replacement parts for
my grill (cast iron burners and stainless flame tamers, to replace
ceramic flame tamers).
While replacing the old parts, I noticed that the stainless parts, in
close proximity to carbon steel parts, DID NOT RUST AT ALL. At worst
they were "discolored" after 8 years in the grill, if that, but had
essentially no rust or pitting. All the while, the old burners
completely rotted out and resembed a pile or rust flakes more than a
solid piece of metal. Some fell apart when lifted out of the
grill. The stainless pieces, however, looked almost like new.
So it is not true to say that stainless steel rusts in grills, it
essentially does not.