<SEC-DOCUMENT>0001047469-15-002959-index.html : 20150330
<SEC-HEADER>0001047469-15-002959.hdr.sgml : 20150330
<ACCEPTANCE-DATETIME>20150330172808
ACCESSION NUMBER:		0001047469-15-002959
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		7
CONFORMED PERIOD OF REPORT:	20150521
FILED AS OF DATE:		20150330
DATE AS OF CHANGE:		20150330
EFFECTIVENESS DATE:		20150330

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STEEL DYNAMICS INC
		CENTRAL INDEX KEY:			0001022671
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
		IRS NUMBER:				351929476
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21719
		FILM NUMBER:		15735643

	BUSINESS ADDRESS:	
		STREET 1:		7575 W JEFFERSON BLVD
		CITY:			FORT WAYNE
		STATE:			IN
		ZIP:			46804
		BUSINESS PHONE:		260 459 3553

	MAIL ADDRESS:	
		STREET 1:		7575 W JEFFERSON BLVD
		CITY:			FORT WAYNE
		STATE:			IN
		ZIP:			46804
</SEC-HEADER>
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<SEQUENCE>1
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<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: a2224010zdef14a.htm

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<TEXT>
Document 2 - file: g226169.jpg

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<TEXT>
Document 3 - file: g783595.jpg

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<SEQUENCE>4
<FILENAME>g550189.jpg
<DESCRIPTION>G550189.JPG
<TEXT>
Document 4 - file: g550189.jpg

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<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g817723.jpg
<DESCRIPTION>G817723.JPG
<TEXT>
Document 5 - file: g817723.jpg

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<TEXT>
Document 6 - file: g16022bii001.gif

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<TEXT>
Document 7 - file: g16022bii002.gif

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</SEC-DOCUMENT>