<SEC-DOCUMENT>0001104659-25-054762-index.html : 20250530
<SEC-HEADER>0001104659-25-054762.hdr.sgml : 20250530
<ACCEPTANCE-DATETIME>20250530131746
ACCESSION NUMBER:		0001104659-25-054762
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		1
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<RULE-NAME>13p-1
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<ITEM-NUMBER>1.01
<ITEM-PERIOD>20241231
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FILED AS OF DATE:		20250530
DATE AS OF CHANGE:		20250530

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]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				351929476
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21719
		FILM NUMBER:		251009337

	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>SD
<SEQUENCE>1
<FILENAME>tm2516488d1_sd.htm
<DESCRIPTION>FORM SD
<TEXT>
Document 1 - file: tm2516488d1_sd.htm

</DOCUMENT>
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