On January 28, 2013, Steel Dynamics, Inc. issued a press release titled "Steel Dynamics Reports Fourth Quarter 2012 Diluted Earnings Per Share of $0.27."

The full text of the press release, together with the exhibit thereto, is furnished herewith as Exhibit 99.1, shall not be deemed "filed" for purposes of
Section 18 of the Securities and Exchange Act of 1934, 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 October 17, 2012, titled "Steel Dynamics
                 Reports Fourth Quarter 2012 Diluted Earnings Per Share of $0.27."