wrote in message
...
On Apr 24, 8:50 am, 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

They made Aloha Stadium out of it and found out it doesn't work in
Hawaii.
Karl



they're replacing corten guardrails in new york
(when i saw this article last year i thought "this is a god damned scam,
somebody's brother's uncle is a metals distributor and his nephew owns a
scrap yard". they're pumping it up in the name of safety so they can blow
wads of money.)


http://www.recordonline.com/apps/pbc...NEWS/903180343


By BY MATT KING
Times Herald-Record
Published: 2:00 AM - 03/18/09
BEAR MOUNTAIN - The metal guardrails along the Palisades Interstate Parkway
are supposed to look weathered so as to blend with the views on the scenic
byway.

But the job of guardrails is to protect drivers from careening off the road,
and the metal rails don't work - at least not as well as they were supposed
to.

That's why the state is asking for a total of $121 million in federal
stimulus funds to replace rails such as these, which were purchased with an
eye more toward form than function.

-snip-