On December 17, 2012, Steel Dynamics, Inc. issued a press release titled "Steel Dynamics Provides Fourth Quarter 2012 Earnings Guidance and Announces Fourth Quarter Cash Dividends." The full text of the press release is furnished herewith as Exhibit 99.1, shall not be deemed "filed" for purposes of Section 18 of the Securities and Exchange Act of 1954, as amended, and shall not be deemed incorporated by reference into any registration statement or other document filed pursuant to the Securities Act of 1933, as amended.

(d) Exhibits.

The following exhibit is furnished with this report:

Exhibit Number                              Description

99.1             A press release dated December 17, 2012, titled "Steel Dynamics
                 Provides Fourth Quarter 2012 Earnings Guidance and Announces
                 Fourth Quarter Cash Dividends."