<SEC-DOCUMENT>0001104659-22-125219-index.html : 20221207
<SEC-HEADER>0001104659-22-125219.hdr.sgml : 20221207
<ACCEPTANCE-DATETIME>20221207171609
ACCESSION NUMBER:		0001104659-22-125219
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		8
FILED AS OF DATE:		20221207
DATE AS OF CHANGE:		20221207
EFFECTIVENESS DATE:		20221207

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:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-268703
		FILM NUMBER:		221450869

	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>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>tm2231991-1_s3asr.htm
<DESCRIPTION>S-3ASR
<TEXT>
Document 1 - file: tm2231991-1_s3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.1
<SEQUENCE>2
<FILENAME>tm2231991d2_ex4-1.htm
<DESCRIPTION>EXHIBIT 4.1
<TEXT>
Document 2 - file: tm2231991d2_ex4-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>tm2231991d2_ex5-1.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 3 - file: tm2231991d2_ex5-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>tm2231991d2_ex23-1.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 4 - file: tm2231991d2_ex23-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-25.1
<SEQUENCE>5
<FILENAME>tm2231991d2_ex25-1.htm
<DESCRIPTION>EXHIBIT 25.1
<TEXT>
Document 5 - file: tm2231991d2_ex25-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-FILING FEES
<SEQUENCE>6
<FILENAME>tm2231991d2_ex-filingfees.htm
<DESCRIPTION>EX-FILING FEES
<TEXT>
Document 6 - file: tm2231991d2_ex-filingfees.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>lg_steeldynamics-4c.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: lg_steeldynamics-4c.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>tm2231991d2_ex25-1img001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: tm2231991d2_ex25-1img001.jpg

</DOCUMENT>
</SEC-DOCUMENT>