John -
Rusty Bucket - the old (now gone) total sealed Fab. Fairchild Semiconductor.

There are other examples in San Jose.

It gives a redish rust and it is tough.

Also - the greenish rust on 'Army' rifles is a rust that locks out
other versions of rust.



engineman wrote:
On a recent episode of "factory made" on the manufacture of light rail
cars they mentioned that the frames were made of what they called
"weathering steel" which was described as an alloy which only develop
surface rust which prevents further rusting.
If there is such a thing, I'm wondering why they don't use it on
automobile frames?
What advantages would it have over galvanized steel?

Engineman