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Prepared and filed by St Ives Financial
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<p align="center"><b><font face="serif" size="4">SECURITIES AND EXCHANGE COMMISSION<br>
WASHINGTON, DC  20549</font></b></p>
<p align="center"><font size="4" face="serif"><b>FORM 8-K</b></font></p>
<p align="center"><font size="2" face="serif"><b>CURRENT REPORT</b></font></p>
<p align="center"><font size="2" face="serif"><b>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</b></font></p>
<p align="center"><font size="2" face="serif">Date of Report (date of earliest event reported): October 19, 2005</font></p>
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    <td align="center"><b><u><font face="serif" size="4">STEEL DYNAMICS, INC.</font></u></b></td>
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    <td align="center"><font size="2" face="serif">(Exact name of registrant as specified in its charter)</font></td>
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    <td width="30%"><font size="2" face="serif">Indiana</font></td>
    <td width="5%">&nbsp;</td>
    <td width="30%"><font size="2" face="serif">0-21719</font></td>
    <td width="5%">&nbsp;</td>
    <td><font size="2" face="serif">35-1929476</font></td>
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    <td><font size="2" face="serif">(State or other jurisdiction<br>
of incorporation)</font></td>
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    <td><font size="2" face="serif">(Commission File Number)</font></td>
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    <td><font size="2" face="serif">(IRS Employer<br>
Identification No.)</font></td>
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<td align="center"><font size="2" face="serif">6714 Pointe Inverness Way, Suite 200, Fort Wayne, Indiana 46804</font></td>
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<td align="center"><font size="2" face="serif">(Address of principal executive offices) (Zip Code)</font></td>
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<p align="center"><font size="2" face="serif">Registrant&#146;s telephone number, including area code:  260-459-3553</font></p>
<p align="center"><font size="2" face="serif">Not Applicable<br>
(Former name or former address, if changed since last report)</font></p>
<p align="left"><font size="2" face="serif">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></p>  <table width="100%" cellspacing="0" cellpadding="0" border="0">
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<td align="left"><font size="2" face="serif">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></td>
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<td align="left"><font size="2" face="serif"> Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></td>
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<td align="left"><font size="2" face="serif">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></td>
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<td align="left"><font size="2" face="serif">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></td>
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<p><a href="#contents"><font size="2">Back to Contents</font></a></p>
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    <td width="9%"><font size="2" face="serif"><b>Item 2.02.</b></font></td>
    <td><font size="2" face="serif"><b>Results of Operations and Financial Condition </b></font></td>
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<p align="left"><font size="2" face="serif">On October 19, 2005, Steel Dynamics, Inc. issued a press
release titled &#147;Steel Dynamics Announces Net Income of $45 Million for Third Quarter&#148; containing information about the company&#146;s results of operations for the three and nine months ended September 30, 2005.  The full text of the press release, together with related unaudited financial information and statistics,
is furnished herewith and attached hereto as Exhibit 99.1.  </font></p>
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    <td width="9%"><font size="2" face="serif"><b>Item 9.01.</b></font></td>
    <td><font size="2" face="serif"><b>Financial Statements and Exhibits</b></font></td>
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  <td width="6%"><font size="2" face="serif">(c)</font></td>
  <td width="15%"><font size="2" face="serif"> Exhibits.</font></td>
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  <td valign="bottom"><font size="2" face="serif"><u>Exhibit Number</u></font></td>
  <td align="left" valign="bottom"><font size="2" face="serif"><u>Description </u></font></td>
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<td width="3%"><font size="2" face="serif">99.1</font></td>
<td align="left">
<font size="2" face="serif"> A press release dated October 19, 2005 titled &#147;Steel Dynamics Announces
Net Income of $45 Million for Third Quarter&#148;</font></td>
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<p align="center"><font size="2" face="serif"><b>SIGNATURE</b></font></p>
<p align="left"><font size="2" face="serif">Pursuant to the requirements of the Securities Exchange
Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned
hereto duly authorized.</font></p>

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<td colspan="2" align="left"><font size="2" face="serif">&nbsp;</font><font size="2" face="serif">STEEL DYNAMICS, INC.</font></td>
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<td align="left"><font size="2" face="serif">/s/ Gary Heasley       </font></td>
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<td width="50%" align="left"><font size="2" face="serif">Date:  October 19, 2005</font></td>
<td width="5%" align="left"><font size="2" face="serif">   By:   </font></td>
<td align="left"><font size="2" face="serif">Gary Heasley</font></td>
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<td align="left"><font size="2" face="serif">&nbsp;</font></td>
<td align="left"><font size="2" face="serif">&nbsp;</font></td>
<td align="left"><font size="2" face="serif">Vice President &amp; CFO</font></td>
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Prepared and filed by St Ives Financial
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC  20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (date of earliest event reported): October 19, 2005
STEEL DYNAMICS, INC.
(Exact name of registrant as specified in its charter)
Indiana
0-21719
35-1929476
(State or other jurisdiction
of incorporation)
(Commission File Number)
(IRS Employer
Identification No.)
6714 Pointe Inverness Way, Suite 200, Fort Wayne, Indiana 46804
(Address of principal executive offices) (Zip Code)
Registrant's telephone number, including area code:  260-459-3553
Not Applicable
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Back to Contents
Item 2.02.
Results of Operations and Financial Condition
On October 19, 2005, Steel Dynamics, Inc. issued a press
release titled "Steel Dynamics Announces Net Income of $45 Million for Third Quarter" containing information about the company's results of operations for the three and nine months ended September 30, 2005.  The full text of the press release, together with related unaudited financial information and statistics,
is furnished herewith and attached hereto as Exhibit 99.1.
Item 9.01.
Financial Statements and Exhibits
(c)
Exhibits.
Exhibit Number
Description
99.1
A press release dated October 19, 2005 titled "Steel Dynamics Announces
Net Income of $45 Million for Third Quarter"
SIGNATURE
Pursuant to the requirements of the Securities Exchange
Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned
hereto duly authorized.
STEEL DYNAMICS, INC.
/s/ Gary Heasley
Date:  October 19, 2005
By:
Gary Heasley
Vice President & CFO