Would someone please tell me what materials and processing are used to
make the USS self-protective-rusting Cor-Ten steel?
Dan Shanefield
snipped-for-privacy@ieee.org
- posted 17 years ago
What's in Cor-Ten?
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- posted 17 years ago
It is a steel that contains copper. This improves the adherence of the rust
to the surface. This provides some corrosion resistance. Applications need
to be controled. Don't use it where it will get rubbed, such as a hand rail.
Don't use it in a buried or partially buried application. To work well it
needs to be able to drain and dry. The splash zone in marine use ought to be
terrible for this material.
- posted 17 years ago
Dan:
Go to Rautaruukki Steel's web site at
Pittsburgh Pete
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click on Products and Services, and on the left click on Brochures
and Publications, and under Hot Rolled Strip and Plate products, click
on Weathering Structural steels. This will download a big Acrobat file
(1.86 Mb). See Table 4 for compositions (Cu-Cr-Ni).Pittsburgh Pete
- posted 17 years ago
Be carefull if specifying weathering steels, they are excellent in the right
application but some applications are not suitable.
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- posted 17 years ago
Brochures
David: You are correct, design must be done carefully, and sea coasts are not suitable places for conventional weathering steels. (Recently the Japanese have made some 3% Ni seacost weathering steels though).
For older US experience on bridges, see the FHWA TECHNICAL ADVISORY : UNCOATED WEATHERING STEEL IN STRUCTURES T 5140.22, October 3, 1989
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>David: You are correct, design must be done carefully, and sea coasts are not suitable places for conventional weathering steels. (Recently the Japanese have made some 3% Ni seacost weathering steels though).
For older US experience on bridges, see the FHWA TECHNICAL ADVISORY : UNCOATED WEATHERING STEEL IN STRUCTURES T 5140.22, October 3, 1989
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Pittsburgh Pete- posted 17 years ago
Thanks to all you guys, for those answers (especially the first one).
Dan Shanefield
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