huangyhg

cor-ten weathering steel
does anyone know of any additional issues associated with the use of cor-ten weathering steel? are there any compatibility issues with welds/fasteners e.t.c?
will galvanised bolts work?
i havent been able to find much info on the us steel site.
i actually found the answer to my own question:
corten can cause staining of concrete surfaces and the initial weathering may not be uniform.
dik
there are inaccuracies in that aisc article. i've tried to get them to take it down but they won't.
there are a number of resources linked from the wikipedia article:
you would use a different type of bolt, nut and washer (i believe all three). for instance, typical a325 bolts are usually type 1. for weathering steel you would use type 3. if i re
take a look at the fhwa guidelines
do not use cor-ten steel in areas where moisture can collect such as ledge angles. a couple years ago we had to replace channels and ledge angles supporting balcony slabs. they rusted badly. if the cor-ten doesn't dry-out occasionally the protective coating will not form.
when i was a student, this was marketed as the greatest thing since sliced bread. fifty ksi and no coating! how could you go wrong?
csd72,
type corten in the search box, in top of this page and select search posts in the advanced search box. this steel has been detailed to extreme end in the last few years, happy perusal for you. you'll find everything you need to know.
cheers,
gr2vessels
it's used quite sucessfully for bridges.
hg
long ago it was found that if concrete is below ,the concrete can be stained with rust.water must not collect on the steel....our new bridge on the delaware river i found was made of corten while i was photographing it.i asked the engineer why , if it was made of corten, were some , not all ,of the girders painted ??? he said that only the outer girders, which would be easily seen were painted because people didn't want to see a brand new bridge rusting !!! lol lol. ...the only thing left to do on the bridge is to put in the railings .but why has there been a delay ? architect [??] didn't want to use standard shapes etc. so he designed something different ! that aluminum railing was cracking during fabrication so it was back to square one .the railing might be available early next year !!!

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