faq operations steel metals recycling ferrous resources fabrication processed copper threaded rod products flat roll structural engineered special bar quality merchant bar rail specialty shapes ferrous & nonferrous scrap liquid pig iron joist & decking processed copper threaded rod sustainability environmental social financial investors advisory information corporate profile news library supplemental financial information investor overview investor presentations conference calls corporate governance analysts sec filings annual reports annual meetings sdi stockholder info resources sds vault scrap specifications employee login supplier portal style guide employee login careers faq home our top priority safety learn more about sdi customer commitment our most important partners superior operating culture the backbone of our company strategic growth sustainable high profit margins innovation challenge the status quo financial strength visit our investors page sustainability our environment our community our shareholders prev next events & presentations stock quote quote delayed 20 minutes sdi product guide product inquiry careers & internships company operations products sustainability investors resources search faq careers employee login supplier portal site map 2016 steel dynamics inc. all rights reserved .