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Posted by JTMcC on August 4, 2006, 3:50 pm
>
> RicodJour wrote:
>> dpb wrote:
>> > OK, I know it exists but been unable to find much. Looking for info on
>> > maintenance-free structural metal (other than Al or SS) for
>> > constructing tower to hang bell in front of church. Dark color to
>> > blend w/ red/black/brown brick desired (hence not SS) and preferable to
>> > not require painting or similar maintenance. Am thinking 4x4 square
>> > tubing would be reasonable dimension combing adequate strength as well
>> > as appropriate visual "heft". (Bell weight is uncertain but estimated
>> > at 3000 lb based on data found for similarly sized cast bells.)
>> >
>> > What alternatives are available and links to information would be
>> > appreciated...
>>
>> http://en.wikipedia.org/wiki/Cor-ten
>>
>> Cor-ten is steel that rusts on the surface. The rust protects the
>> underlying material. Guardrails along highways are often made of the
>> stuff.
> ...
> Thanks, I "knew" I should know the trade name. But, unfortunately,
> seems only comes in plate unless require enough to make a mill run--no
> indication of standard structural shapes available routinely (that I
> can find, anyway). Don't think we can afford that! :) (The
> possibility exists since we're in a relatively dry area to simply use
> steel and let it go--it'll last a _long_ time here simply unpainted but
> would undoubtedly leave some ugly rust stains on the mounting pads. I
> initially thought of just using SS, but in looking at the area where it
> would sit I think the bright surface would "stick out" excessively...
> :(
>
> I've a call in to local metal dealer, so we'll see what I can learn
> there (if anything).
>
> I didn't realize it was an issue to find the stuff in whatever form one
> wanted it...
>
> I'll search some more for other high Cu/Ni alloys. I surely thought
> there were a variety of materials readily available but don't seem to
> find what I thought I would.
>
Don't ask for cor-ten, ask for weathering steel, available in structural
shapes and used in many bridges.
JTMcC.
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